San Francisco, CA

9:16 PM PDT on May 21, 2013 (GMT -0700)
Elev: 131 ft
Lon: 122.4° W
Lat: 37.8° N
Source
Rapid Fire Updates™
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Oklahoma Tornado: More coverage on Catastrophic EF-5 Tornado in Oklahoma
News
Miles and Minutes: Okla. Tornado By the Numbers
May 21, 2013
See the facts and figures that defined the Moore, Okla. tornado.
Moore Tornado a Rare EF5
May 21, 2013
EF5/F5 tornadoes are rare, but Moore has seen two of them in the past 15 years.
Power of Moore Tornado Dwarfs Hiroshima Atomic Bomb
May 21, 2013
Wind, humidity and rainfall combined precisely to create the massive killer tornado in Moore, Okla. And when they did, the awesome amount of energy released over that city dwarfed the power of the atomic bomb that leveled Hiroshima.
Okla Governor: We Will Rebuild After Tornado
May 21, 2013
The search and rescue efforts are ongoing in Moore, Okla. after a massive tornado levelled the town and local schools.
Weather Imagery Reveals Oklahoma Tornado
May 21, 2013
The Moore, Oklahoma tornado showed up vividly on satellite and radar.
PTSD Risk after the Oklahoma Tornado
May 21, 2013
In the wake of Mondays devastating tornado that ravaged the town of Moore, Okla., survivors are likely to feel incredible shock and numbness.
Tornado Leaves Small Hospital 'Pretty Much Destroyed'
May 21, 2013
Officials say a tornado hit a small hospital in suburban Oklahoma City, but all the 30 patients inside survived.
Obama: 'Americans From Every Corner of This Country Will Be With Them'
May 21, 2013
Obama has declared a major disaster in Oklahoma, ordering federal aid to supplement state and local recovery efforts. The president also spoke Monday with Oklahoma Gov. Mary Fallin and Rep. Tom Cole, whose home is in the heavily damaged town of Moore.
Why Don't More Homes in Oklahoma Have Basements?
May 21, 2013
The answer lies in the level of the water table and the soil texture in Oklahoma and in states across the Plains.
Photos: Deadly Tornado Outbreak Strikes Plains
May 21, 2013
A tornado outbreak struck the Plains states on May 19, 2013, leaving widespread damage in its wake.
Children and the Tornado: Helping Kids Cope
May 21, 2013
Any time children are involved in a catastrophe, emotional reactions among survivors and across the nation are particularly strong.
Recap: Tornadoes Rake Oklahoma, Kansas, Iowa
May 21, 2013
The weather imagery, video and recap from tornadoes in the Plains on May 19, 2013.
Tornado Took Similar Path to 1999 F5
May 21, 2013
Moore, Oklahoma is no stranger to devastating tornadoes.
'I Expected Chaos:' Scenes from Okla. School
May 21, 2013
A photographer who was among the first to arrive at an Oklahoma Elementary School after a tornado destroyed it, describes the heart-wrenching scene.
A Timeline of Deadly Events in Moore, Okla.
May 21, 2013
Check out this comprehensive timeline of the events that transpired in Moore, Okla.
In Tornado's Wake, Worried Parents Seek Out Kids
May 21, 2013
A desperate search was underway by parents looking to find children after the massive tornado.
Moore Already at Work on Recovery, Says Mayor
May 21, 2013
Glenn Lewis was the mayor of Moore, Okla., when the strongest tornado on record whipped the city in 1999, and he says the most recent storm won't deter the community from rebuilding.
Moore Survivor Finds Dog Buried Alive
May 21, 2013
Watch as a tornado survivor is interrupted in the middle of interview by a little dog digging out of rubble.
Oklahoma Tornado: How to Help
May 21, 2013
There are several agencies asking for donations to help those hit hard by the Oklahoma tornadoes.
Multiple Children Dead at Okla. School
May 21, 2013
More than a dozen children are dead in the devastating Moore, Okla. tornado.
More News Articles
Weather Summary
Kari Kiefer
Weather Underground midday recap for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather began to fire up again across the nation's mid-section on Tuesday.

The nearly stationary low over the Northern Plains showed signs of gradual weakening as it shifted eastward toward the Mississippi River Valley on Tuesday, while the system's associated cold front trailed southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of north-central/northeastern Texas, southern Arkansas, northwestern Louisiana and far southeastern Oklahoma remained at moderate risk of severe thunderstorm activity as environmental conditions remained favorable for tornadoes, damaging wind gusts, and very large hail. In particular, substantial severe weather was expected across north-central Texas to the

ArkLaTex region this afternoon and evening. Areas surrounding this moderate risk region from the Southern Plains to the Tennessee/Ohio valleys and the Lower Great Lakes/Northeast remained at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes. In addition to severe storms, heavy rains created chances of flood and possible isolated areas of flash flooding from parts eastern Oklahoma through northern Arkansas.

Meanwhile, areas of heavy rain and widely scattered showers continued near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the inland areas of the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms picked up across the Mid-Atlantic and southeastern corner of the nation through the afternoon.
Weather Underground midday recap for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather began to fire up again across the nation's mid-section on Tuesday.

The nearly stationary low over the Northern Plains showed signs of gradual weakening as it shifted eastward toward the Mississippi River Valley on Tuesday, while the system's associated cold front trailed southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of north-central/northeastern Texas, southern Arkansas, northwestern Louisiana and far southeastern Oklahoma remained at moderate risk of severe thunderstorm activity as environmental conditions remained favorable for tornadoes, damaging wind gusts, and very large hail. In particular, substantial severe weather was expected across north-central Texas to the

ArkLaTex region this afternoon and evening. Areas surrounding this moderate risk region from the Southern Plains to the Tennessee/Ohio valleys and the Lower Great Lakes/Northeast remained at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes. In addition to severe storms, heavy rains created chances of flood and possible isolated areas of flash flooding from parts eastern Oklahoma through northern Arkansas.

Meanwhile, areas of heavy rain and widely scattered showers continued near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the inland areas of the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms picked up across the Mid-Atlantic and southeastern corner of the nation through the afternoon.
More News Articles

San Francisco Weather at a Glance

Updated 9:15 PM PDT
Elevation
49 ft
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Now
Partly Cloudy
Partly Cloudy
Temperature
53.0 °F
Feels Like 53.0 °F
Wind(mph)
8.0
Sunrise / Set
5:55 AM
8:18 PM
Moon
Waxing Gibbous
Tonight
Clear 50 °F
Clear
Tomorrow
Clear 64 °F
Clear
Tomorrow Night
Clear 48 °F
Clear
Thursday
Clear 66 | 50 °F
Clear
Friday
Partly Cloudy 63 | 52 °F
Partly Cloudy
Saturday
Partly Cloudy 64 | 54 °F
Partly Cloudy
Tomorrow is forecast to be nearly the same temperature as today.
Conditions
Pressure
29.96 in
Visibility
10.0 miles
Clouds
Few 2000 ft
Moisture
Humidity
71%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KSFO 220356Z 28034G49KT 10SM FEW020 11/04 A2996 RMK AO2 PK WND 27049/0354 SLP145 T01110044
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
53.0 °F
56,57,59,61,61,63,62,61,61,59,57,55,53
Dew Point
44 °F
Wind
Speed / Dir
8.0 mph from SW
Wind Gust
0.0 mph
Health
UV
0 out of 16
Pollen
6.30 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
Sporadic
View Flu Map
Loading…
Source: BestForecast
Descriptive Forecast
Tuesday Night
nt_clear Clear. Low of 50F. Breezy. Winds from the NW at 10 to 20 mph.
Wednesday
clear Clear. High of 64F. Breezy. Winds from the WNW at 10 to 25 mph with gusts to 30 mph.
Wednesday Night
nt_clear Clear. Low of 48F. Winds from the WNW at 5 to 20 mph.
Thursday
clear Clear. High of 66F. Breezy. Winds from the WNW at 15 to 20 mph.
Thursday Night
nt_clear Clear in the evening, then partly cloudy. Low of 50F. Breezy. Winds from the WNW at 10 to 20 mph.
Friday
partlycloudy Partly cloudy. High of 63F. Breezy. Winds from the West at 10 to 20 mph.
Friday Night
nt_clear Clear in the evening, then partly cloudy. Low of 52F. Winds from the West at 5 to 15 mph.
Saturday
partlycloudy Partly cloudy in the morning, then clear. High of 64F. Breezy. Winds from the West at 10 to 20 mph.
Saturday Night
nt_mostlycloudy Overcast in the evening, then mostly cloudy. Fog overnight. Low of 54F. Winds from the West at 5 to 15 mph.
Sunday
partlycloudy Partly cloudy. High of 63F. Winds from the West at 5 to 20 mph.
Sunday Night
nt_clear Clear. Low of 50F. Winds from the WNW at 5 to 10 mph.
Monday
clear Clear. High of 68F. Winds from the West at 5 to 20 mph.
Monday Night
nt_clear Clear. Low of 52F. Winds from the West at 5 to 15 mph.
Tuesday
partlycloudy Partly cloudy. High of 66F. Breezy. Winds from the West at 10 to 20 mph.
Tuesday Night
nt_partlycloudy Clear. Low of 50F. Winds from the West at 5 to 15 mph.
Wednesday
clear Clear. High of 68F. Winds from the West at 5 to 15 mph.
Wednesday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 52F. Winds from the West at 5 to 15 mph.
Thursday
partlycloudy Partly cloudy. High of 64F. Winds from the WNW at 5 to 20 mph.
Thursday Night
nt_partlycloudy Clear. Low of 52F. Winds from the WNW at 10 to 15 mph.
Friday
clear Clear. High of 66F. Winds from the WNW at 5 to 20 mph.
Friday Night
nt_clear Clear. Low of 54F. Breezy. Winds from the WNW at 10 to 20 mph.
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Weather Forecast for San Francisco CA

View Calendar 10-Day Forecast for station KCASANFR58

Tuesday, 21
Partly Cloudy
66 | 50 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 22
Clear
64 | 48 °F
Clear
Chance of
Precipitation
0%
Thursday, 23
Clear
66 | 50 °F
Clear
Chance of
Precipitation
0%
Friday, 24
Partly Cloudy
63 | 52 °F
Partly Cloudy
Chance of
Precipitation
0%
Saturday, 25
Partly Cloudy
64 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Sunday, 26
Partly Cloudy
63 | 50 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 27
Clear
68 | 52 °F
Clear
Chance of
Precipitation
0%
Tuesday, 28
Partly Cloudy
66 | 50 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 29
Clear
68 | 52 °F
Clear
Chance of
Precipitation
0%
Thursday, 30
Partly Cloudy
64 | 52 °F
Partly Cloudy
Chance of
Precipitation
0%
Source: BestForecast at 7:23 PM PDT on May 21, 2013
Descriptive Forecast
Tuesday Night
nt_clear Clear. Low of 50F. Breezy. Winds from the NW at 10 to 20 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 49 62 | 52 60 | 49 53 | 45
Wind 17 mph West 27 mph West 21 mph WNW 11 mph WNW
Humidity 75% 67% 66% 74%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 67% 35% 14% 7%
Conditions Fog Partly Cloudy Clear Clear
Sunrise & Sunset
5:55 AM
8:18 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.72], Average RMSE [1.65]
The National Weather Service forecast quality is poor. MaxT RMSE [8.42], Average RMSE [2.60] : Use NWS
Source: BestForecast at 7:23 PM PDT on May 21, 2013
Descriptive Forecast
Wednesday
clear Clear. High of 64F. Breezy. Winds from the WNW at 10 to 25 mph with gusts to 30 mph.
Wednesday Night
nt_clear Clear. Low of 48F. Winds from the WNW at 5 to 20 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 51 | 45 62 | 45 59 | 42 53 | 45
Wind 13 mph NNW 16 mph WNW 21 mph WNW 9 mph WNW
Humidity 83% 54% 54% 76%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 6% 4% 3% 3%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:54 AM
8:18 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.06], Average RMSE [2.00]
The National Weather Service forecast quality is fair. MaxT RMSE [3.38], Average RMSE [2.98] : Use NWS
Source: BestForecast at 7:23 PM PDT on May 21, 2013
Descriptive Forecast
Thursday
clear Clear. High of 66F. Breezy. Winds from the WNW at 15 to 20 mph.
Thursday Night
nt_clear Clear in the evening, then partly cloudy. Low of 50F. Breezy. Winds from the WNW at 10 to 20 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 49 | 47 60 | 47 59 | 46 53 | 46
Wind 9 mph WNW 15 mph WNW 18 mph WNW 13 mph WNW
Humidity 89% 62% 60% 79%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 4% 7% 7% 17%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:53 AM
8:19 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.80], Average RMSE [2.14]
The National Weather Service forecast quality is fair. MaxT RMSE [3.27], Average RMSE [2.65] : Use NWS
Source: BestForecast at 7:23 PM PDT on May 21, 2013
Descriptive Forecast
Friday
partlycloudy Partly cloudy. High of 63F. Breezy. Winds from the West at 10 to 20 mph.
Friday Night
nt_clear Clear in the evening, then partly cloudy. Low of 52F. Winds from the West at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 47 60 | 52 59 | 49 52 | 48
Wind 11 mph West 11 mph West 14 mph West 9 mph West
Humidity 83% 71% 67% 87%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 41% 31% 31% 0%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
5:53 AM
8:20 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.36], Average RMSE [2.36]
The National Weather Service forecast quality is poor. MaxT RMSE [3.55], Average RMSE [3.22] : Use NWS
Source: BestForecast at 7:23 PM PDT on May 21, 2013
Descriptive Forecast
Saturday
partlycloudy Partly cloudy in the morning, then clear. High of 64F. Breezy. Winds from the West at 10 to 20 mph.
Saturday Night
nt_mostlycloudy Overcast in the evening, then mostly cloudy. Fog overnight. Low of 54F. Winds from the West at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 47 60 | 49 62 | 52 53 | 52
Wind 7 mph West 12 mph West 15 mph West 9 mph WSW
Humidity 81% 64% 69% 96%
Chance of Precip. 10% 0% 0% 10%
Cloud Cover 64% 62% 5% 94%
Conditions Mostly Cloudy Partly Cloudy Clear Fog
Sunrise & Sunset
5:52 AM
8:21 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.94], Average RMSE [1.99]
The National Weather Service forecast quality is poor. MaxT RMSE [4.62], Average RMSE [3.19] : Use NWS
Source: BestForecast at 7:23 PM PDT on May 21, 2013
Descriptive Forecast
Sunday
partlycloudy Partly cloudy. High of 63F. Winds from the West at 5 to 20 mph.
Sunday Night
nt_clear Clear. Low of 50F. Winds from the WNW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 54 | 50 59 | 50 58 | 51 53 | 49
Wind 7 mph WNW 10 mph West 14 mph West 8 mph West
Humidity 87% 71% 74% 89%
Chance of Precip. 10% 10% 0% 0%
Cloud Cover 89% 1% 40% 1%
Conditions Overcast Clear Partly Cloudy Clear
Sunrise & Sunset
5:51 AM
8:21 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.48], Average RMSE [2.94]
The National Weather Service forecast quality is poor. MaxT RMSE [4.60], Average RMSE [3.25] : Use NWS
Source: BestForecast at 7:23 PM PDT on May 21, 2013
Descriptive Forecast
Monday
clear Clear. High of 68F. Winds from the West at 5 to 20 mph.
Monday Night
nt_clear Clear. Low of 52F. Winds from the West at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 48 64 | 47 62 | 47 54 | 52
Wind 7 mph WNW 11 mph West 15 mph West 9 mph West
Humidity 79% 55% 60% 93%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 19% 2% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:51 AM
8:22 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.84], Average RMSE [2.05]
The National Weather Service forecast quality is poor. MaxT RMSE [4.54], Average RMSE [2.74] : Use NWS
Source: BestForecast at 7:23 PM PDT on May 21, 2013
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy. High of 66F. Breezy. Winds from the West at 10 to 20 mph.
Tuesday Night
nt_partlycloudy Clear. Low of 50F. Winds from the West at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 52 65 | 54 62 | 51 54 | 49
Wind 7 mph WNW 12 mph West 15 mph West 8 mph West
Humidity 85% 67% 66% 87%
Chance of Precip. 10% 10% 0% 0%
Cloud Cover 86% 53% 21% 35%
Conditions Mostly Cloudy Partly Cloudy Clear Partly Cloudy
Sunrise & Sunset
5:50 AM
8:23 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.24], Average RMSE [2.43]
Source: BestForecast at 7:23 PM PDT on May 21, 2013
Descriptive Forecast
Wednesday
clear Clear. High of 68F. Winds from the West at 5 to 15 mph.
Wednesday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 52F. Winds from the West at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 54 | 49 60 | 53 62 | 56 54 | 54
Wind 7 mph WNW 7 mph WSW 12 mph West 9 mph West
Humidity 84% 76% 80% 97%
Chance of Precip. 0% 10% 10% 10%
Cloud Cover 0% 8% 17% 36%
Conditions Clear Clear Clear Partly Cloudy
Sunrise & Sunset
5:50 AM
8:24 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.31], Average RMSE [3.20]
Source: BestForecast at 7:23 PM PDT on May 21, 2013
Descriptive Forecast
Thursday
partlycloudy Partly cloudy. High of 64F. Winds from the WNW at 5 to 20 mph.
Thursday Night
nt_partlycloudy Clear. Low of 52F. Winds from the WNW at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 53 61 | 52 62 | 50 53 | 50
Wind 6 mph WNW 8 mph WNW 15 mph WNW 11 mph WNW
Humidity 93% 69% 66% 89%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 56% 46% 36% 22%
Conditions Fog Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
5:50 AM
8:24 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.28], Average RMSE [2.89]
Source: BestForecast at 7:23 PM PDT on May 21, 2013
Descriptive Forecast
Friday
clear Clear. High of 66F. Winds from the WNW at 5 to 20 mph.
Friday Night
nt_clear Clear. Low of 54F. Breezy. Winds from the WNW at 10 to 20 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 49 63 | 47 62 | 46 55 | 45
Wind 8 mph WNW 10 mph WNW 16 mph WNW 13 mph WNW
Humidity 85% 56% 52% 69%
Chance of Precip. 10% 10% 0% 0%
Cloud Cover 9% 8% 8% 4%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Source: BestForecast at 7:23 PM PDT on May 21, 2013
Descriptive Forecast
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 45 64 | 45 65 | 46 56 | 46
Wind 10 mph NW 12 mph NW 17 mph WNW 13 mph NW
Humidity 66% 49% 49% 67%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% % % %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 22, 2013 Max Temp Min Temp
Normal (KSFO) 68 °F 52 °F
Record (KSFO) 92 °F (2000) 45 °F (1974)
Yesterday 83 °F 53 °F
Yesterday's Cooling Degree Days: 3
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
Willows, California 121 miles 2.6 3:15 PM PDT
2013-05-15
The Geysers, California 75 miles 3.0 11:11 PM PDT
2013-05-14
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Moderate
PM2.5
Yesterday Good
OZONE
Current Good
PM2.5
Current Good
OZONE
Tuesday Good
OZONE
Wednesday Good
OZONE
Thursday Good
OZONE
Friday Good
OZONE
Saturday Good
OZONE
Sunday Good
OZONE
Coastal Water Temperatures
Place Temperature
San Francisco, CA 57.0 °F
Richmond, CA 61.0 °F
Port Chicago, CA 66.9 °F
Marine Forecast
Astronomy
May. 21, 2013 Rise Set
Actual Time 5:55 AM PDT 8:18 PM PDT
Civil Twilight 5:25 AM PDT 8:48 PM PDT
Nautical Twilight 4:48 AM PDT 9:25 PM PDT
Astronomical Twilight 4:07 AM PDT 10:05 PM PDT
Moon 4:41 PM PDT (5/21) 3:21 AM PDT (5/21)
Length Of Visible Light 15h 22m
Length of Day
14h 23m
Tomorrow will be 1m 29s longer.
Waxing Gibbous, 88% of the Moon is Illuminated
Today
Waxing Gibbous
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
102 °F
Palm Springs
102 °F
Imperial
102 °F
El Centro
102 °F
Thermal
100 °F
Needles
32 °F
Big Bear City
33 °F
Truckee-Tahoe
39 °F
South Lake Tahoe
41 °F
Montague
43 °F
Alturas
Record Extremes
Snow Depth
Station Depth Elevation
Blue Lakes 0 in 8000 ft
Rubicon #2 0 in 7500 ft
Fallen Leaf 0 in 6300 ft
Squaw Valley 0 in 8200 ft
Burnside Lake 0 in 8139 ft
Snow Depth Reports — Snow Depth Map
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Aviation
City Temp. Conditions Updated
San Francisco 52 °F Partly Cloudy 8:56 PM PDT
Oakland 57 °F Partly Cloudy 8:53 PM PDT
Hayward 56 °F Clear 8:54 PM PDT
Half Moon Bay 50 °F Haze 8:55 PM PDT
View all Aviation Tools
Flight To ETA Status
AMF282
Sacramento, CA 		KHWD 09:17PM En Route / Delayed
FDX1818
Reno, NV 		KOAK 09:05PM On Time
SWA1668
Albuquerque, NM 		KOAK 09:10PM On Time
SWA1279
Boise, ID 		KOAK 09:12PM On Time
HAL48
Honolulu, HI 		KOAK 09:18PM On Time
UAL454
Las Vegas, NV 		KSFO 09:06PM On Time
VRD759
Seattle, WA 		KSFO 09:07PM On Time
SKW5303
Bakersfield, CA 		KSFO 09:08PM On Time
SKW5648
Medford, OR 		KSFO 09:08PM On Time
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: VFR (KSFO)
Wind Speed: 34.0 kts.
Wind Dir: 230° (SW)
Ceiling: Unlimited

METAR KSFO 220356Z 28034G49KT 10SM FEW020 11/04 A2996 RMK AO2 PK WND 27049/0354 SLP145 T01110044

View all Reports & Maps
Nearby Events
Event Date Forecast
Ben Howard 8:00 PM PDT
2013-04-15		 Partly Cloudy, 46°F
Dead Can Dance 7:00 PM PDT
2013-04-15		 Clear, 47°F
Music at Meyer / SF Opera Center Adler Fellows In Concert 7:00 PM PDT
2013-04-15		 Clear, 47°F
Private Tour April 2013 6:00 PM PDT
2013-04-15		 Clear, 49°F
The Real Sf Tour March - April 2013 9:00 AM PDT
2013-04-15		 Partly Cloudy, 49°F
A Day To Remember 7:00 PM PDT
2013-04-15		 Clear, 47°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Tigers vs. Indians 7:05 PM EDT on May 21, 2013 Chance of a Thunderstorm, 81 °F
Yankees vs. Orioles 7:05 PM EDT on May 21, 2013 Partly Cloudy, 81 °F
Nationals vs. Giants 7:15 PM PDT on May 21, 2013 Clear, 56 °F
Nationals vs. Giants 12:45 PM PDT on May 22, 2013 Clear, 63 °F
Event Date Forecast
Livorno vs. Brescia 6:30 PM CEST on May 22, 2013 Clear, High 69° F/ 21° C
Empoli vs. Novara 8:45 PM CEST on May 22, 2013 Clear, High 68° F/ 20° C
Event Date Forecast
Coca-Cola 600 6:16 PM EDT on May 26, 2013 Partly Cloudy, 70 °F
FedEx 400 benefiting Autism Speaks 1:15 PM EDT on June 02, 2013 Average High 81° F/ 27° C
Event Date Forecast
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 23, 2013 Partly Cloudy, 68 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 24, 2013 Mostly Cloudy, 70 °F
U.S. Open Championship 8:30 AM PDT on June 13, 2013 Average High 70° F/ 21° C
U.S. Open Championship 8:30 AM PDT on June 14, 2013 Average High 71° F/ 21° C
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Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
SOMA - Near Van Ness, San Francisco, CA 53.0 °F - 44 °F 71% SW  at  8.0 mph 0.00 in / hr 49 ft 9:15 PM PDT Rapid Fire
North Mission (Valencia, San Francisco, CA 53.6 °F - 38 °F 56% North  at  4.0 mph 0.00 in / hr 62 ft 9:13 PM PDT Normal  
SOMA, San Francisco, CA 52.1 °F - 43 °F 72% SSW  at  4.0 mph 0.00 in / hr 23 ft 9:12 PM PDT Normal
Mission (at Bar and Burrito), San Francisco, CA 51.5 °F - 43 °F 72% West  at  10.0 mph 0.00 in / hr 52 ft 9:16 PM PDT Rapid Fire  
HADS SAN FRANCISCO DOWNTOWN CA, San Francisco, CA 52 °F - 41 °F 67% North  at  - 0.00 in / hr 174 ft 8:43 PM PDT MADIS
SoMa, San Francisco, CA 53.4 °F - 45 °F 72% West  at  10.0 mph 0.00 in / hr 0 ft 9:12 PM PDT Normal
Mission Bay - My weather is better than , San Francisco, CA 53.8 °F - 42 °F 64% North  at  0.0 mph 0.00 in / hr 80 ft 9:06 PM PDT Normal  
Nob Hill, San Francisco, CA 52.2 °F - 42 °F 67% North  at  28.2 mph 0.37 in / hr 397 ft 9:15 PM PDT Normal  
Castro/San Francisco, San Francisco, CA 51.4 °F - 32 °F 37% WSW  at  4.0 mph 0.00 in / hr 200 ft 9:15 PM PDT Normal  
The Castro, San Francisco, CA 50.8 °F - 41 °F 70% West  at  17.0 mph 0.00 in / hr 188 ft 9:14 PM PDT Normal
The Mission: Even the weather is hip, San Francisco, CA 52.0 °F - 43 °F 72% West  at  19.2 mph 0.00 in / hr 65 ft 9:16 PM PDT Rapid Fire  
Drew School, San Francisco, CA 52.0 °F - 42 °F 69% West  at  10.9 mph 0.00 in / hr 194 ft 9:15 PM PDT Normal
Town School For Boys, San Francisco, CA 52.1 °F - 45 °F 77% WSW  at  10.1 mph 0.00 in / hr 302 ft 8:48 PM PDT Normal
Financial District, San Francisco, CA 54.9 °F - 33 °F 43% SSW  at  7.2 mph 0.00 in / hr 100 ft 9:15 PM PDT Normal
APRSWXNET San Francisco CA , San Francisco, CA 52 °F - 43 °F 72% West  at  12 mph 0.00 in / hr 290 ft 8:47 PM PDT MADIS
Noe Valley, San Francisco, CA 49.2 °F 43 °F 43 °F 79% NW  at  16.0 mph 0.00 in / hr 308 ft 9:16 PM PDT Rapid Fire  
Noe Valley, San Francisco, CA 50.0 °F 46 °F 41 °F 71% WSW  at  11.0 mph 0.00 in / hr 301 ft 9:14 PM PDT Normal
little house in the mission, San Francisco, CA 52.2 °F - 43 °F 70% NE  at  5.8 mph - / hr 42 ft 9:07 PM PDT Normal  
Diamond Heights, San Francisco, CA 48.5 °F 43 °F 43 °F 80% NNW  at  15.0 mph 0.00 in / hr 512 ft 9:16 PM PDT Rapid Fire  
NOS_PORTS Pier 1, CA, San Francisco, CA 54 °F - - - West  at  15 mph 0.00 in / hr 0 ft 8:42 PM PDT MADIS
Billy Goat Hill, San Francisco, CA 50.0 °F - 45 °F 83% NW  at  3.0 mph 0.00 in / hr 340 ft 9:15 PM PDT Normal  
inner sunset, San Francisco, CA 49.4 °F 46 °F 43 °F 80% WNW  at  9.1 mph 0.00 in / hr 282 ft 9:16 PM PDT Rapid Fire
Presidio, San Francisco, CA 52.7 °F - 44 °F 71% North  at  9.0 mph 0.00 in / hr 0 ft 9:16 PM PDT Rapid Fire  
Twin Peaks, San Francisco, CA 48.2 °F 45 °F 43 °F 82% WNW  at  8.0 mph 0.00 in / hr 600 ft 9:15 PM PDT Normal  
Golden Gate Heights, San Francisco, CA 48.9 °F 48 °F 44 °F 83% WNW  at  4.0 mph 0.00 in / hr 574 ft 9:12 PM PDT Normal
APRSWXNET San Francisco CA , San Francisco, CA 50 °F 44 °F 45 °F 82% West  at  20 mph 0.00 in / hr 406 ft 8:04 PM PDT MADIS
Glen Park, San Francisco, CA 49.3 °F 49 °F 46 °F 93% NNW  at  0.0 mph 0.00 in / hr 0 ft 9:13 PM PDT Normal  
Portola, San Francisco, CA 50.5 °F - 42 °F 72% WNW  at  30.2 mph 0.67 in / hr 290 ft 9:15 PM PDT Rapid Fire
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