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WeatherLiveCaliforniaCastro ValleyHourly Weather

Castro Valley, CA Hourly Weather

Hourly forecast · Castro Valley

The next 48 hours in detail — temperature, feels-like, precipitation chance, wind and UV for every hour. Built on NWS NBM and global model guidance.

48 hours — Castro Valley

Today + 10-day →
Time Conditions Temp Precip Wind UV
Monday 24/8
23:00
Partly cloudy 60° 4 mph SW 0
Tuesday 25/8
00:00
Fog 58° 4 mph SW 0
01:00
Fog 58° 3 mph SW 0
02:00
Fog 57° 3 mph SW 0
03:00
Fog 57° 3 mph SW 0
04:00
Fog 57° 3 mph SW 0
05:00
Fog 58° 3 mph SW 0
06:00
Fog 57° 3 mph SW 0
07:00
Fog 57° 3 mph SW 0
08:00
Fog 58° 3 mph SW 1
09:00
Mostly cloudy 61° 4 mph SW 2
10:00
Mostly cloudy 63° 4 mph SW 4
11:00
Mostly cloudy 67° 4 mph SW 6
12:00
Partly cloudy 71° 5 mph SW 8
13:00
Mostly cloudy 74° 6 mph SW 9
14:00
Mostly cloudy 85° 7 mph SW 8
15:00
Mostly cloudy 85° 6 mph W 6
16:00
Mostly cloudy 85° 7 mph W 4
17:00
Mostly cloudy 83° 6 mph W 2
18:00
Mostly cloudy 79° 5 mph W 1
19:00
Mostly cloudy 74° 4 mph SW 0
20:00
Partly cloudy 68° 4 mph SW 0
21:00
Mostly cloudy 65° 4 mph SW 0
22:00
Mostly cloudy 64° 4 mph SW 0
23:00
Mostly cloudy 63° 4 mph SW 0
Wednesday 26/8
00:00
Mostly cloudy 62° 3 mph SW 0
01:00
Mostly cloudy 61° 3 mph SW 0
02:00
Mostly cloudy 61° 3 mph SW 0
03:00
Mostly cloudy 61° 3 mph SW 0
04:00
Mostly cloudy 60° 3 mph SW 0
05:00
Partly cloudy 60° 3 mph SW 0
06:00
Sunny 60° 3 mph SW 0
07:00
Sunny 60° 3 mph SW 0
08:00
Sunny 65° 3 mph SW 1
09:00
Sunny 71° 4 mph SW 2
10:00
Partly cloudy 77° 4 mph SW 4
11:00
Mostly cloudy 82° 4 mph SW 6
12:00
Mostly cloudy 85° 5 mph SW 8
13:00
Sunny 87° 7 mph SW 9
14:00
Partly cloudy 87° 8 mph SW 8
15:00
Sunny 87° 8 mph SW 7
16:00
Sunny 85° 6 mph SW 5
17:00
Sunny 82° 6 mph SW 2
18:00
Sunny 79° 6 mph SW 1
19:00
Sunny 73° 5 mph SW 0
20:00
Sunny 66° 5 mph SW 0
21:00
Sunny 64° 5 mph SW 0
22:00
Sunny 63° 4 mph SW 0
Hourly
How the hourly forecast is made
Hour-by-hour numbers come from NOAA's National Blend of Models combined with ECMWF and GFS guidance, bias-corrected against nearby station observations and refreshed every hour.
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 11:52 PM