Castro Valley, CA Hourly Weather Forecast

Sun, Nov 15, 2026

Sunday

Mon 11/16

High 62°f

Rain showers in the morning will evolve into a more steady rain in the afternoon. High 62F. Winds SSW at 10 to 15 mph. Chance of rain 80%. Rainfall around a quarter of an inch.

Sunday night

Mon 11/16

Low 49°f

82% Precip. / 0.23 in

Rain early...then remaining cloudy with showers late. Low 49F. Winds NNW at 5 to 10 mph. Chance of rain 80%. Rainfall around a quarter of an inch.

Sunrise 6:48 AM

Sunset 4:56 PM

Moonrise 12:09 PM

Moonset 10:17 PM

Waxing Crescent, 34% visible

Hourly Forecast

12AM

53°

1AM

53°

2AM

53°

3AM

52°

4AM

52°

5AM

52°

6AM

52°

6:48AM

Sunrise

7AM

52°

8AM

54°

9AM

57°

10AM

59°

11AM

34%

60°

12PM

38%

61°

1PM

64%

61°

2PM

67%

61°

3PM

67%

61°

4PM

75%

59°

4:57PM

Sunset

5PM

83%

58°

6PM

83%

57°

7PM

82%

57°

8PM

79%

56°

9PM

76%

56°

10PM

59%

55°

11PM

59%

54°

Time	Conditions	Temp.	Feels Like	Precip	Amount	Cloud Cover	Dew Point	Humidity	Wind	Pressure
12:00 am	Cloudy	53°F	52°F	6%	0in	92%	48°F	81%	6 mph ESE	30.01in
1:00 am	Cloudy	53°F	51°F	6%	0in	88%	47°F	82%	6 mph ESE	30.01in
2:00 am	Cloudy	53°F	50°F	7%	0in	87%	47°F	81%	7 mph E	30.01in
3:00 am	Cloudy	52°F	50°F	7%	0in	81%	47°F	84%	6 mph ESE	30.01in
4:00 am	Cloudy	52°F	49°F	9%	0in	80%	47°F	84%	6 mph ESE	30.01in
5:00 am	Cloudy	52°F	49°F	7%	0in	83%	47°F	85%	7 mph ESE	30.02in
6:00 am	Cloudy	52°F	49°F	7%	0in	87%	48°F	87%	7 mph ESE	30.02in
7:00 am	Cloudy	52°F	49°F	11%	0in	90%	48°F	88%	7 mph SE	30.03in
8:00 am	Cloudy	54°F	52°F	10%	0in	89%	50°F	84%	8 mph SE	30.03in
9:00 am	Cloudy	57°F	55°F	9%	0in	90%	51°F	79%	9 mph SSE	30.04in
10:00 am	Cloudy	59°F	58°F	24%	0in	91%	51°F	74%	9 mph S	30.04in
11:00 am	Few Showers	60°F	58°F	34%	0.01in	92%	52°F	75%	10 mph S	30.04in
12:00 pm	Showers	61°F	59°F	38%	0.01in	93%	52°F	74%	11 mph SSW	30.02in
1:00 pm	Rain	61°F	59°F	64%	0.03in	100%	53°F	74%	11 mph SSW	30.01in
2:00 pm	Rain	61°F	60°F	67%	0.03in	100%	53°F	75%	11 mph SW	30in
3:00 pm	Rain	61°F	59°F	67%	0.04in	100%	53°F	77%	11 mph SW	30in
4:00 pm	Rain	59°F	58°F	75%	0.05in	100%	55°F	85%	10 mph SW	30in
5:00 pm	Rain	58°F	56°F	83%	0.05in	100%	54°F	88%	9 mph SW	30in
6:00 pm	Rain	57°F	56°F	83%	0.05in	100%	54°F	90%	6 mph WSW	30.01in
7:00 pm	Rain	57°F	56°F	82%	0.04in	100%	53°F	88%	5 mph WSW	30.03in
8:00 pm	Rain	56°F	55°F	79%	0.04in	100%	52°F	88%	5 mph WSW	30.04in
9:00 pm	Rain	56°F	54°F	76%	0.03in	100%	52°F	86%	7 mph WNW	30.05in
10:00 pm	Showers	55°F	53°F	59%	0.02in	90%	51°F	85%	6 mph NW	30.06in
11:00 pm	Showers	54°F	52°F	59%	0.02in	85%	50°F	85%	7 mph NNW	30.07in

Additional Conditions

Pressure 29.91 in
Visibility 10 miles
Clouds Partly Cloudy
Dew Point46°F
Humidity 77%
Rainfall 0 in
Snow Depth 0 in

KHWD Station History

Almanac for November 12, 2026

Forecast Average Record
Temperature
High 71°F 66°F 75°F 1995
Low 50°F 48°F 34°F 1948
Rain/Snow Depth
Precipitation 0.01 in 4.8 in -
Snow 0 in 0.1 in -

Almanac for November 13, 2026

Forecast Average Record
Temperature
High 60°F 66°F 77°F
Low 52°F 48°F 33°F

Astronomy

Sun Rise Set
Actual Time 6:45 AM 4:59 PM
Civil Twilight 6:17 AM 5:27 PM
Nautical Twilight 5:46 AM 5:58PM
Astronomical Twilight 5:15 AM 6:29 PM

Length of Visible Light 11h 9m
Length of Day 10h 13m
Tomorrow will be 1 minute 50 seconds shorter

Moon 10:11 AM 7:19 PM
Waxing Crescent11% of the Moon is Illuminated

Nov 17

Waxing Half First Qtr

Nov 24

Full Moon

Nov 30

Waning Half Last Qtr

Dec 8

New Moon

Nearby Weather Stations

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