10-day forecast · Castro Valley
Day-by-day outlook up to 14 days: highs, lows, precipitation totals, wind and UV. Planning further ahead? Open the 30-day outlook →
Thu · Today
Sunny
32°
15°
5%
⌄
Wind 8 mph W
Gusts 14 mph
UV index 9 – Very high
Precip chance 5%
Sunrise 6:34 AM
Sunset 7:45 PM
Fri · Tomorrow
Mostly cloudy
29°
14°
7%
⌄
Wind 7 mph SW
Gusts 18 mph
UV index 7 – High
Precip chance 7%
Sunrise 6:35 AM
Sunset 7:43 PM
Saturday 29/8
Sunny
24°
12°
6%
⌄
Wind 10 mph SW
Gusts 15 mph
UV index 6 – High
Precip chance 6%
Sunrise 6:36 AM
Sunset 7:42 PM
Sunday 30/8
Sunny
24°
12°
6%
⌄
Wind 9 mph W
Gusts 16 mph
UV index 6 – High
Precip chance 6%
Sunrise 6:36 AM
Sunset 7:41 PM
Monday 31/8
Sunny
20°
11°
8%
⌄
Wind 10 mph W
Gusts 14 mph
UV index 6 – High
Precip chance 8%
Sunrise 6:37 AM
Sunset 7:39 PM
Tuesday 1/9
Sunny
25°
14°
6%
⌄
Wind 7 mph W
Gusts 16 mph
UV index 7 – High
Precip chance 6%
Sunrise 6:38 AM
Sunset 7:38 PM
Wednesday 2/9
Sunny
25°
13°
4%
⌄
Wind 10 mph SW
Gusts 14 mph
UV index 7 – High
Precip chance 4%
Sunrise 6:39 AM
Sunset 7:36 PM
Thursday 3/9
Mostly cloudy
25°
13°
12%
⌄
Wind 6 mph SW
Gusts 15 mph
UV index 5 – Moderate
Precip chance 12%
Sunrise 6:40 AM
Sunset 7:35 PM
Friday 4/9
Rain
18°
16°
1.42 in
⌄
Wind 3 mph SW
Gusts 13 mph
UV index 4 – Moderate
Precip chance 88% · 1.42 in
Sunrise 6:41 AM
Sunset 7:33 PM
Saturday 5/9
Showers
19°
15°
0.23 in
⌄
Wind 3 mph SW
Gusts 12 mph
UV index 5 – Moderate
Precip chance 86% · 0.23 in
Sunrise 6:41 AM
Sunset 7:32 PM
Sunday 6/9
Sunny
22°
12°
5%
⌄
Wind 7 mph SW
Gusts 14 mph
UV index 6 – High
Precip chance 5%
Sunrise 6:42 AM
Sunset 7:30 PM
Monday 7/9
Sunny
27°
12°
4%
⌄
Wind 5 mph SW
Gusts 16 mph
UV index 7 – High
Precip chance 4%
Sunrise 6:43 AM
Sunset 7:29 PM
Tuesday 8/9
Sunny
30°
16°
1%
⌄
Wind 6 mph W
Gusts 15 mph
UV index 8 – Very high
Precip chance 1%
Sunrise 6:44 AM
Sunset 7:27 PM
Wednesday 9/9
Sunny
32°
17°
1%
⌄
Wind 6 mph W
Gusts 14 mph
UV index 8 – Very high
Precip chance 1%
Sunrise 6:45 AM
Sunset 7:26 PM
10-day outlook for Castro Valley
Over the next ten days Castro Valley peaks at 32° on Thursday and bottoms out at 11° on Monday. The back half cools off by roughly 14°, so the warmest days are the ones in front of you. Add it up and about 1.7 in of precipitation falls over the period, spread across 2 unsettled days, with Friday the most likely (88%).