Humacao, PR

2:08 PM AST on May 18, 2013 (GMT -0400)
Elev: 95 ft
Lon: 65.8° W
Lat: 18.2° N
Source
Rapid Fire Updates™
 Updated 1:53 PM AST Get Free Weather Stickers® Share:
Your Custom Weather Sticker®

Copy the following lines of HTML:
Get more styles and options for your Weather Sticker® here.
News
Flash Flooding Swamps Parts of Alabama
May 18, 2013
The photos, reports, and perspective behind flooding rain in parts of Alabama Saturday.
Active Volcano Captured in Stunning Photos
May 17, 2013
Indonesian-born and Qatar-based photographer Helminadia Ranford captured breathtaking photos of Mt. Bromo, an active volcano in East Java, Indonesia.
NASA: New Pump Resolves Big Space Station Leak
May 17, 2013
A spacewalk has repaired a leak on the International Space Station, NASA said.
Record Snow: Where Winter Won't End
May 18, 2013
Spring warmth has arrived in most of the U.S., except this state.
Storm Damage near Shreveport
May 16, 2013
Storm storms leave damage near Shreveport, Louisiana. See photos and tweets.
Texas Tornadoes: As They Happened
May 18, 2013
We walk through the full timeline of the Texas tornadoes on May 15, 2013.
By Man or Nature, Places That Will Never Be the Same
May 16, 2013
Where Earth has been changed forever.
Smaller Glaciers Boost Sea Level as Much as the Giants
May 16, 2013
Thousands of small glaciers, unconnected to continental-scale ice sheets, have dumped about 260 million tons of meltwater into the ocean annually between 2003 and 2009.
Deadly Texas Outbreak May Mark End of Tornado Drought
May 16, 2013
After months with record-low activity, the 2013 tornado season roared back with a vengeance on Wednesday as at least 10 twisters touched down across portions of north-central Texas, killing at least 6 and injuring dozens more.
Mexico Volcano Registers More Seismic Activity
May 16, 2013
Seismic activity is continuing at the Popocatepetl volcano near Mexico City and authorities say they have readied shelters and identified evacuation routes in case they should be needed.
Cyclone Mahasen Weakens After Killing 45 in Bangladesh
May 16, 2013
Cyclone Mahasan weakened Thursday afternoon into a tropical storm and then dissipated, causing far less damage than had been feared as it passed over Bangladesh and spared Myanmar almost entirely, meteorological officials said.
Worldwide Cleanup Reveals Trashed Beaches (PHOTOS)
May 17, 2013
The Ocean Conservancy releases stunning photos from its recent international beach cleanup day.
Oldest Water on Earth Found Deep Underground
May 17, 2013
Finding the oldest water on Earth has implications for understanding life on Earth and maybe Mars.
Tornado-Ravaged Texas Town to Start Recovery
May 18, 2013
It's now time to move on in a Texas town wrecked by a massive twister.
Study: 97% Agreement on Manmade Global Warming
May 16, 2013
The scientific agreement that climate change is happening, and that it's caused by human activity, is significant and growing, according to a new study published Thursday.
Social Media Reacts as Deadly Severe Weather Pelts Texas
May 16, 2013
Severe weather broke out in northeastern Texas, including the Dallas Fort Worth area. Below are reports of hail and tornadoes from throughout social media.
Kepler's Alien-Hunting Days May be Numbered
May 15, 2013
NASA's planet-hunting Kepler telescope is broken, possibly jeopardizing searches for life outside the Milky Way.
Report: Coldest April in Over a Decade for U.S.
May 15, 2013
April 2013 was colder and wetter than average.
Stunning Images of Earth at Night (PHOTOS)
May 15, 2013
The collection above features over 100 breathtaking images of Earth taken from NASA satellites and the International Space Station at night. But to scientists and meteorologists, they are more than just pretty pictures.
America's First Climate Refugees: Is Exile Inevitable?
May 15, 2013
In Alaska, climate change is forcing villagers on the edge of the Arctic to confront the reality of a warming planet. If they don't act soon, their villages were be lost forever.
More News Articles
Weather Summary
Kari Kiefer
Weather Underground Forecast for Saturday, May 18, 2013.

A strong low pressure system will bring active weather to the center of the nation on Saturday. The system will move off the Rockies and into the Plains, which will push a warm front into the Northern Plains and Upper Midwest, while it continues pulling a cold front southeastward across the Western states. Counter clockwise flow around this system will pull more moisture and energy into the Plains from the Gulf of Mexico, allowing for showers and thunderstorms to develop from Oklahoma through the Dakotas and into Minnesota. These areas are under a slight threat of severe weather development with strong winds, large hail, and heavy rainfall. Parts of western Nebraska and northwestern Kansas are under a moderate risk of severe thunderstorm development. This area has increased risk for tornado development on Saturday.

East of this activity, a weak trough slowly moves over the Eastern Valleys, allowing for a few more widespread showers and thunderstorms to pop up from the Southern Appalachians through the Mid-Atlantic states. Meanwhile in the West, moisture from the Pacific Ocean will allow for scattered showers with afternoon thunderstorms to persist for the Northern and Central Rockies. Severe storms are not likely in these areas. In the Southwest, gusty winds, warm temperatures, and dry conditions will maintain dangerous fire weather conditions on Saturday.
Weather Underground Forecast for Saturday, May 18, 2013.

A strong low pressure system will bring active weather to the center of the nation on Saturday. The system will move off the Rockies and into the Plains, which will push a warm front into the Northern Plains and Upper Midwest, while it continues pulling a cold front southeastward across the Western states. Counter clockwise flow around this system will pull more moisture and energy into the Plains from the Gulf of Mexico, allowing for showers and thunderstorms to develop from Oklahoma through the Dakotas and into Minnesota. These areas are under a slight threat of severe weather development with strong winds, large hail, and heavy rainfall. Parts of western Nebraska and northwestern Kansas are under a moderate risk of severe thunderstorm development. This area has increased risk for tornado development on Saturday.

East of this activity, a weak trough slowly moves over the Eastern Valleys, allowing for a few more widespread showers and thunderstorms to pop up from the Southern Appalachians through the Mid-Atlantic states. Meanwhile in the West, moisture from the Pacific Ocean will allow for scattered showers with afternoon thunderstorms to persist for the Northern and Central Rockies. Severe storms are not likely in these areas. In the Southwest, gusty winds, warm temperatures, and dry conditions will maintain dangerous fire weather conditions on Saturday.
More News Articles

Humacao Weather at a Glance

Updated 1:53 PM AST
Weather Station
St. Thomas (TIST)
Elevation
23 ft
Report Station
You are about to report this weather station for bad data.

Please select the information which is incorrect and click 'Submit' otherwise click 'Cancel'.

— Cancel

Now
Overcast
Overcast
Temperature
84 °F
Feels Like 90 °F
Wind(mph)
13
Sunrise / Set
5:49 AM
6:50 PM
Moon
First Quarter
Today
Rain Showers 86 °F
Rain Showers
20% chance of precipitation
Tonight
Rain Showers 77 °F
Rain Showers
30% chance of precipitation
Tomorrow
Rain Showers 86 | 77 °F
Rain Showers
30% chance of precipitation
Monday
Thunderstorm 86 | 77 °F
T-storms
40% chance of precipitation
Tuesday
Chance of a Thunderstorm 86 | 77 °F
Chance of T-storms
40% chance of precipitation
Wednesday
Chance of a Thunderstorm 86 | 79 °F
Chance of T-storms
50% chance of precipitation
Today is forecast to be nearly the same temperature as yesterday.
Conditions
Pressure
30.03 in
Visibility
10.0 miles
Clouds
Mostly Cloudy 3200 ft
Mostly Cloudy 4100 ft
Overcast 4900 ft
Moisture
Humidity
67%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR TIST 181753Z 11011G17KT 10SM BKN032 BKN041 OVC049 29/22 A3003 RMK AO2 SLP168 T02890222 10306 20278 58012
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Heat Index
90 °F
Dew Point
72 °F
Wind
Speed / Dir
13 mph from ESE
Wind Gust
20 mph
Health
UV
3 out of 16
Pollen
Not available.
Air Quality
Not available.
Flu Activity
Local Activity
View Flu Map
Loading…
Source: BestForecast
Descriptive Forecast
Saturday
partlycloudy Partly cloudy with rain showers in the morning, then clear with rain showers. High of 86F with a heat index of 91F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 20%.
Saturday Night
nt_rain Partly cloudy with rain showers. Low of 77F. Breezy. Winds from the ENE at 15 to 20 mph. Chance of rain 30%.
Sunday
rain Partly cloudy with rain showers. High of 86F. Breezy. Winds from the North at 15 to 20 mph. Chance of rain 30%.
Sunday Night
nt_rain Partly cloudy with rain showers. Low of 77F. Breezy. Winds from the East at 15 to 25 mph. Chance of rain 30%.
Monday
tstorms Overcast with rain showers in the morning, then partly cloudy with thunderstorms and rain showers. High of 86F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 40%.
Monday Night
nt_partlycloudy Overcast with rain showers, then a chance of a thunderstorm and rain after midnight. Low of 77F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 20%.
Tuesday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 86F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 40%.
Tuesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain. Low of 77F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 50%.
Wednesday
chancetstorms Overcast with a chance of a thunderstorm and rain in the morning, then partly cloudy with a chance of a thunderstorm and rain. High of 86F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 50%.
Wednesday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 60% with rainfall amounts near 0.4 in. possible.
Thursday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.
Thursday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 77F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 70% with rainfall amounts near 0.8 in. possible.
Friday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F with a heat index of 93F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Friday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the East at 15 to 25 mph. Chance of rain 60% with rainfall amounts near 0.4 in. possible.
Saturday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 70% with rainfall amounts near 0.2 in. possible.
Saturday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 50%.
Sunday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Sunday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the ESE at 10 to 20 mph. Chance of rain 40%.
Monday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Monday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 79F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Tuesday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Tuesday Night
nt_clear Clear with a chance of a thunderstorm. Low of 79F. Winds from the ESE at 10 to 15 mph. Chance of rain 20%.
Loading…
 
First Previous Last Next  
Updated:  
 
 

 

Weather Forecast for Humacao PR

View Calendar 10-Day Forecast for station TIST

Saturday, 18
Rain Showers
86 | 77 °F
Rain Showers
Chance of
Precipitation
20%
Sunday, 19
Rain Showers
86 | 77 °F
Rain Showers
Chance of
Precipitation
30%
Monday, 20
Thunderstorm
86 | 77 °F
T-storms
Chance of
Precipitation
40%
Tuesday, 21
Chance of a Thunderstorm
86 | 77 °F
Chance of T-storms
Chance of
Precipitation
40%
Wednesday, 22
Chance of a Thunderstorm
86 | 79 °F
Chance of T-storms
Chance of
Precipitation
50%
Thursday, 23
Chance of a Thunderstorm
86 | 77 °F
Chance of T-storms
Chance of
Precipitation
70%
Friday, 24
Chance of a Thunderstorm
86 | 79 °F
Chance of T-storms
Chance of
Precipitation
60%
Saturday, 25
Chance of a Thunderstorm
86 | 79 °F
Chance of T-storms
Chance of
Precipitation
70%
Sunday, 26
Chance of a Thunderstorm
88 | 79 °F
Chance of T-storms
Chance of
Precipitation
40%
Monday, 27
Chance of a Thunderstorm
88 | 79 °F
Chance of T-storms
Chance of
Precipitation
40%
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Saturday
partlycloudy Partly cloudy with rain showers in the morning, then clear with rain showers. High of 86F with a heat index of 91F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 20%.
Saturday Night
nt_rain Partly cloudy with rain showers. Low of 77F. Breezy. Winds from the ENE at 15 to 20 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 79 | 74 84 | 75 81 | 75 79 | 73
Wind 15 mph West 15 mph East 16 mph East 17 mph East
Humidity 84% 73% 80% 84%
Chance of Precip. 20% 20% 20% 30%
Cloud Cover 44% 23% 15% 35%
Conditions Rain Showers Rain Showers Rain Showers Rain Showers
Sunrise & Sunset
5:49 AM
6:50 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Sunday
rain Partly cloudy with rain showers. High of 86F. Breezy. Winds from the North at 15 to 20 mph. Chance of rain 30%.
Sunday Night
nt_rain Partly cloudy with rain showers. Low of 77F. Breezy. Winds from the East at 15 to 25 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 73 83 | 73 82 | 73 79 | 73
Wind 17 mph East 18 mph West 18 mph East 20 mph East
Humidity 80% 68% 75% 82%
Chance of Precip. 30% 30% 30% 30%
Cloud Cover 29% 35% 40% 53%
Conditions Rain Showers Rain Showers Rain Showers Rain Showers
Sunrise & Sunset
5:48 AM
6:50 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Monday
tstorms Overcast with rain showers in the morning, then partly cloudy with thunderstorms and rain showers. High of 86F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 40%.
Monday Night
nt_partlycloudy Overcast with rain showers, then a chance of a thunderstorm and rain after midnight. Low of 77F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 73 84 | 73 82 | 73 79 | 73
Wind 20 mph East 17 mph East 19 mph East 21 mph ENE
Humidity 81% 67% 78% 80%
Chance of Precip. 30% 40% 40% 10%
Cloud Cover 46% 20% 14% 99%
Conditions Rain Showers Rain Showers Thunderstorm Overcast
Sunrise & Sunset
5:48 AM
6:51 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Tuesday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 86F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 40%.
Tuesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain. Low of 77F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 50%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 72 84 | 72 82 | 73 78 | 73
Wind 20 mph East 21 mph East 22 mph ENE 22 mph East
Humidity 78% 66% 73% 80%
Chance of Precip. 20% 10% 10% 20%
Cloud Cover 98% 82% 92% 39%
Conditions Chance of a Thunderstorm Mostly Cloudy Overcast Chance of a Thunderstorm
Sunrise & Sunset
5:48 AM
6:51 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Wednesday
chancetstorms Overcast with a chance of a thunderstorm and rain in the morning, then partly cloudy with a chance of a thunderstorm and rain. High of 86F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 50%.
Wednesday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 60% with rainfall amounts near 0.4 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 72 84 | 72 82 | 72 80 | 73
Wind 23 mph ENE 23 mph East 23 mph East 24 mph East
Humidity 80% 66% 73% 79%
Chance of Precip. 20% 20% 10% 20%
Cloud Cover 72% 92% 44% 62%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Partly Cloudy Chance of a Thunderstorm
Sunrise & Sunset
5:48 AM
6:52 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Thursday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.
Thursday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 77F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 70% with rainfall amounts near 0.8 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 72 84 | 73 82 | 73 80 | 73
Wind 23 mph East 23 mph East 21 mph East 23 mph East
Humidity 78% 66% 73% 80%
Chance of Precip. 30% 20% 40% 30%
Cloud Cover 98% 86% 98% 93%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:47 AM
6:52 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Friday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F with a heat index of 93F. Breezy. Winds from the East at 20 to 25 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Friday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the East at 15 to 25 mph. Chance of rain 60% with rainfall amounts near 0.4 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 73 85 | 73 82 | 73 80 | 73
Wind 21 mph East 21 mph East 20 mph East 20 mph East
Humidity 78% 66% 73% 78%
Chance of Precip. 30% 30% 30% 20%
Cloud Cover 95% 83% 97% 99%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:47 AM
6:52 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Saturday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 86F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 70% with rainfall amounts near 0.2 in. possible.
Saturday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 50%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 81 | 73 85 | 73 82 | 73 80 | 73
Wind 19 mph East 18 mph East 19 mph East 15 mph East
Humidity 76% 65% 75% 78%
Chance of Precip. 30% 30% 30% 10%
Cloud Cover 84% 76% 98% 94%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Overcast
Sunrise & Sunset
5:47 AM
6:53 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Sunday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Sunday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the ESE at 10 to 20 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 72 86 | 73 83 | 73 81 | 74
Wind 15 mph ESE 14 mph ESE 15 mph ESE 14 mph ESE
Humidity 77% 63% 72% 80%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 86% 97% 77% 54%
Conditions Mostly Cloudy Overcast Mostly Cloudy Partly Cloudy
Sunrise & Sunset
5:47 AM
6:53 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Monday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Monday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 79F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 80 | 75 86 | 75 83 | 76 81 | 76
Wind 14 mph ESE 13 mph ESE 13 mph East 13 mph ESE
Humidity 81% 69% 78% 84%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 53% 46% 35% 29%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:47 AM
6:53 PM
Source: BestForecast at 9:20 AM AST on May 18, 2013
Descriptive Forecast
Tuesday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Tuesday Night
nt_clear Clear with a chance of a thunderstorm. Low of 79F. Winds from the ESE at 10 to 15 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 81 | 75 86 | 75 83 | 75 82 | 75
Wind 12 mph ESE 12 mph ESE 12 mph ESE 11 mph ESE
Humidity 83% 69% 74% 80%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 27% 28% 32% %
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 18, 2013 Max Temp Min Temp
Normal (TJSJ) 88 °F 76 °F
Record (TJSJ) 94 °F (1903) 67 °F (1957)
Yesterday 87 °F 77 °F
Yesterday's Cooling Degree Days: 17
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Coastal Water Temperatures
Place Temperature
Yabucoa Harbor, PR 87.1 °F
Esperanza, PR 84.0 °F
Charlotte Amalie, VI 89.1 °F
Marine Forecast
Astronomy
May. 18, 2013 Rise Set
Actual Time 5:49 AM AST 6:50 PM AST
Civil Twilight 5:25 AM AST 7:14 PM AST
Nautical Twilight 4:57 AM AST 7:41 PM AST
Astronomical Twilight 4:29 AM AST 8:10 PM AST
Moon 12:45 PM AST 12:39 AM AST
Length Of Visible Light 13h 48m
Length of Day
13h 01m
Tomorrow will be 0m 40s longer.
First Quarter, 56% of the Moon is Illuminated
Today
First Quarter
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
Follow us on Twitter Find us on Facebook Community
WunderPhotos®
Dancing over the shore
Echoed in Yellow
• • • • • • • • • •
Uploaded by: RyanF
1,612,421 photos uploaded!
Upload a photo now
Visit WunderPhotos
WunderBlogs®
Caribbean Islands Hurricane Upd...
By PRweathercenter 1 day ago
May daily weather in Puerto Ric...
By Tropicsweatherpr 7 hours ago
WxReport : KP4ATP 24 HR OBSN WE...
By kp4atp 1 day ago
Visit WunderBlogs
Travel & Activities
Travel Planning
Travel Planner Road Trip Planner
Destination? *
When are you going?
to
Is there an activity you would like to explore?
* Required field
View all Travel Tools
Aviation
City Temp. Conditions Updated
Roosevelt Roads - Overcast 1:53 PM AST
San Juan 86 °F Mostly Cloudy 1:56 PM AST
Ponce 90 °F Scattered Clouds 12:50 PM AST
St. Thomas 84 °F Overcast 1:53 PM AST
View all Aviation Tools
Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: VFR (TIST)
Wind Speed: 11.0 kts.
Wind Dir: 110° (ESE)
Ceiling: 3200 ft

METAR TIST 181753Z 11011G17KT 10SM BKN032 BKN041 OVC049 29/22 A3003 RMK AO2 SLP168 T02890222 10306 20278 58012

View all Reports & Maps
Nearby Events
Event Date Forecast
No events within 10 mi of location. View all events.
Event data courtesy eviesays.com
Sports
Event Date Forecast
Mariners vs. Indians 1:05 PM EDT on May 18, 2013 Mostly Cloudy, 61 °F
Blue Jays vs. Yankees 1:05 PM EDT on May 18, 2013 Chance of Rain, 70 °F
Event Date Forecast
Pro Vercelli vs. Cesena 2:30 PM CEST on May 18, 2013 Clear, High 73° F/ 23° C
Bari vs. Grosseto 2:30 PM CEST on May 18, 2013 Clear, High 75° F/ 24° C
Event Date Forecast
Sprint Showdown 7:46 PM EDT on May 18, 2013 Thunderstorm, 74 °F
NASCAR Sprint All-Star Race 9:00 PM EDT on May 18, 2013 Thunderstorm, 74 °F
Event Date Forecast
HP Byron Nelson Championship 8:30 AM CDT on May 18, 2013 Mostly Cloudy, 72 °F
HP Byron Nelson Championship 8:30 AM CDT on May 19, 2013 Mostly Cloudy, 72 °F
View all Sports Weather
Videos
Year In Weather 2012

Watch the nearly year-long satellite animation as Weather Underground calls out the most significant weather events of the past year, including Superstorm Sandy and Hurricane Isaac.

Visit Our Video Section
Weather Stations
Station Location Temp. Heat Index Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Down Town, Las Piedras, PR 83.6 °F 89 °F 72 °F 69% WSW  at  6.0 mph 0.00 in / hr 50 ft 2:03 PM AST Normal
NOS_NWLON Yabucoa Harbor, PR , Yabucoa, PR 83 °F 81 °F - - North  at  - 0.00 in / hr 0 ft 1:36 PM AST MADIS
Manejo de Emergencias, Maunabo, PR 85.1 °F 92 °F 73 °F 68% East  at  4.0 mph 0.00 in / hr 50 ft 10:18 AM AST Normal
Bo. Tomas de Castro #2, Caguas, PR 85.9 °F 92 °F 72 °F 63% East  at  5.0 mph 0.00 in / hr 641 ft 1:54 PM AST Normal
Manejo de Emergencias, Caguas, PR 88.2 °F 92 °F 68 °F 52% East  at  6.0 mph 0.00 in / hr 40 ft 2:03 PM AST Normal
Ciudad Jardin, Carolina, PR 84.5 °F 91 °F 72 °F 67% North  at  6.0 mph 0.00 in / hr 10 ft 2:06 PM AST Normal  
NOS_NWLON Fajardo, PR , Puerto Real, PR 82 °F 80 °F - - ENE  at  14 mph 0.00 in / hr 0 ft 1:36 PM AST MADIS
Manejo de Emergencias, Carolina, PR 85.2 °F 92 °F 73 °F 66% ESE  at  11.0 mph 0.00 in / hr 40 ft 12:38 PM AST Normal  
Carretera #1 Caguas, Caguas, PR 84.0 °F 90 °F 72 °F 67% North  at  8.0 mph 0.00 in / hr 50 ft 2:02 PM AST Normal
myweatherplace.com, Loiza, PR 84.4 °F 92 °F 74 °F 72% East  at  7.0 mph 0.00 in / hr 6 ft 2:00 PM AST Normal
Colinas de Fairview, Trujillo Alto, PR 94.1 °F 89 °F 32 °F 11% North  at  0.0 mph 0.00 in / hr 308 ft 2:07 PM AST Rapid Fire
MIHIGHLANDPARK WEATHER VIEW, San Juan, PR 88.0 °F 96 °F 73 °F 62% North  at  9.2 mph 0.00 in / hr 125 ft 2:07 PM AST Rapid Fire
Cayey, PR, Cayey, PR 85.4 °F 91 °F 71 °F 63% ESE  at  5.0 mph 0.00 in / hr 1250 ft 1:55 PM AST Normal  
Would you like to share your weather data with the rest of the world? Add Your Weather Station!