Castro Valley Hourly Forecast
Next 48 Hours
Today
Partly cloudy in the morning then becoming mostly cloudy. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the upper 50s to mid 60s. Southeast winds 10 to 20 mph.
Tonight
Partly cloudy in the evening. A chance of showers in the evening, then rain after midnight. Lows in the upper 40s. Southeast winds 10 to 20 mph.
| Sun, Nov 24th | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
9 AM Cloudy  UV Index: 0.6 |
47°F Feels 45°F |
90% | 4.7 ESE | 30.08 inHg | 44.9°F | 0% |
10 AM Partly Cloudy  UV Index: 1.3 |
47°F Feels 45°F |
85% | 4.7 SE | 30.09 inHg | 44.5°F | 0% |
11 AM Cloudy UV Index: 1.9 |
51°F Feels 50°F |
93% | 4.5 SE | 30.09 inHg | 44.9°F | 0% |
12 PM Sunny UV Index: 2.3 |
54°F Feels 52°F |
67% | 4.7 SSE | 30.09 inHg | 45°F | 0% |
1 PM Partly Cloudy UV Index: 2.1 |
56°F Feels 55°F |
65% | 4.5 S | 30.08 inHg | 44.1°F | 0% |
2 PM SunnyUV Index: 1.5 |
56°F Feels 54°F |
60% | 4.9 SSW | 30.05 inHg | 44.6°F | 0% |
3 PM Partly Cloudy UV Index: 0.7 |
57°F Feels 55°F |
63% | 5.1 SSW | 30.07 inHg | 44°F | 0% |
4 PM SunnyUV Index: 0.2 |
57°F Feels 56°F |
62% | 5.4 SW | 30.06 inHg | 44.1°F | 0% |
5 PM Partly Cloudy  UV Index: 0 |
56°F Feels 55°F |
60% | 3.8 SW | 30.02 inHg | 43.7°F | 0% |
6 PM Partly Cloudy UV Index: 0 |
55°F Feels 53°F |
71% | 2.5 SSW | 30.06 inHg | 45.2°F | 0% |
7 PM Clear  UV Index: 0 |
55°F Feels 55°F |
75% | 2.7 S | 30.08 inHg | 46.2°F | 0% |
8 PM Cloudy  UV Index: 0 |
53°F Feels 52°F |
68% | 3.6 SSE | 30.03 inHg | 44.4°F | 0% |
9 PM Clear UV Index: 0 |
52°F Feels 51°F |
80% | 5.1 SE | 30.1 inHg | 45.5°F | 0% |
10 PM Clear UV Index: 0 |
51°F Feels 50°F |
82% | 5.8 SSE | 30.11 inHg | 45.5°F | 0% |
11 PM Partly Cloudy UV Index: 0 |
52°F Feels 50°F |
57% | 5.6 SSE | 30.11 inHg | 36.3°F | 0% |
Monday
Breezy, rain. Highs around 60. Southeast winds 20 to 30 mph...becoming south 10 to 20 mph in the afternoon.
Monday Night
Rain likely in the evening, then a chance of rain after midnight. Lows in the lower 50s. Southwest winds 5 to 15 mph. Chance of rain 70 percent.
| Mon, Nov 25th | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Cloudy UV Index: 0 |
52°F Feels 50°F |
73% | 5.6 SE | 30.04 inHg | 43.6°F | 0% |
1 AM Cloudy UV Index: 0 |
52°F Feels 50°F |
74% | 5.1 SE | 30.04 inHg | 43.8°F | 0% |
2 AM Overcast  UV Index: 0 |
52°F Feels 50°F |
74% | 5.8 SE | 30.04 inHg | 44°F | 0% |
3 AM Moderate Rain At Times UV Index: 0 |
51°F Feels 50°F |
83% | 5.1 SE | 30.04 inHg | 46.5°F | 100% Rain est. 0.03in |
4 AM Heavy Rain At Times UV Index: 0 |
51°F Feels 49°F |
88% | 3.4 SE | 30.04 inHg | 47.7°F | 100% Rain est. 0.04in |
5 AM Light Rain UV Index: 0 |
51°F Feels 50°F |
92% | 4.5 SE | 30.04 inHg | 49°F | 100% Rain est. 0.05in |
6 AM Light RainUV Index: 0 |
51°F Feels 50°F |
92% | 4 ESE | 30.05 inHg | 49.2°F | 100% Rain est. 0.03in |
7 AM Light RainUV Index: 0 |
51°F Feels 51°F |
93% | 3.4 ESE | 30.05 inHg | 49.3°F | 100% Rain est. 0.01in |
8 AM Overcast  UV Index: 0 |
52°F Feels 52°F |
93% | 2.7 SE | 30.05 inHg | 49.4°F | 0% |
9 AM Overcast UV Index: 0.1 |
52°F Feels 52°F |
93% | 5.4 S | 30.06 inHg | 50°F | 0% |
10 AM Overcast UV Index: 0.3 |
52°F Feels 52°F |
94% | 7.4 SE | 30.07 inHg | 50.4°F | 0% |
11 AM Overcast UV Index: 0.4 |
53°F Feels 53°F |
94% | 7.2 SE | 30.07 inHg | 50.7°F | 0% |
12 PM Overcast UV Index: 0.3 |
53°F Feels 53°F |
93% | 7.2 ESE | 30.07 inHg | 51.1°F | 0% |
1 PM Overcast UV Index: 0.2 |
54°F Feels 54°F |
92% | 4.3 E | 30.07 inHg | 51.4°F | 0% |
2 PM Overcast UV Index: 0.2 |
54°F Feels 54°F |
92% | 4.7 ENE | 30.06 inHg | 51.6°F | 0% |
3 PM Overcast UV Index: 0.1 |
54°F Feels 55°F |
91% | 4.5 ENE | 30.06 inHg | 51.8°F | 0% |
4 PM Overcast UV Index: 0.1 |
54°F Feels 55°F |
91% | 4.5 ENE | 30.06 inHg | 51.9°F | 0% |
5 PM Overcast UV Index: 0 |
54°F Feels 55°F |
91% | 4.7 E | 30.06 inHg | 52°F | 0% |
6 PM Overcast UV Index: 0 |
54°F Feels 54°F |
91% | 3.4 ENE | 30.07 inHg | 51.1°F | 0% |
7 PM Overcast UV Index: 0 |
53°F Feels 53°F |
91% | 2 NE | 30.08 inHg | 50.7°F | 0% |
8 PM Overcast UV Index: 0 |
53°F Feels 53°F |
91% | 2.7 E | 30.09 inHg | 50.2°F | 0% |
9 PM Overcast UV Index: 0 |
52°F Feels 53°F |
94% | 3.8 ESE | 30.11 inHg | 50.6°F | 0% |
10 PM Overcast UV Index: 0 |
52°F Feels 52°F |
96% | 3.8 ESE | 30.12 inHg | 50.9°F | 0% |
11 PM Clear UV Index: 0 |
51°F Feels 51°F |
71% | 4.9 SE | 30.05 inHg | 43.2°F | 0% |
Tuesday
Rain likely. Highs in the upper 50s. Southwest winds around 5 mph...becoming northwest in the afternoon. Chance of rain 60 percent.
Tuesday Night
Mostly cloudy. A chance of rain. Lows in the mid 40s.
| Tue, Nov 26th | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Fog UV Index: 0 |
51°F Feels 51°F |
97% | 5.6 SE | 30.14 inHg | 49.6°F | 0% |
1 AM FogUV Index: 0 |
50°F Feels 50°F |
97% | 6.9 SE | 30.14 inHg | 48.9°F | 0% |
2 AM FogUV Index: 0 |
49°F Feels 49°F |
97% | 9.2 SSE | 30.14 inHg | 48.1°F | 0% |
3 AM FogUV Index: 0 |
49°F Feels 49°F |
97% | 10.7 SSE | 30.15 inHg | 48°F | 0% |
4 AM FogUV Index: 0 |
49°F Feels 48°F |
97% | 9.8 S | 30.15 inHg | 47.9°F | 0% |
5 AM FogUV Index: 0 |
49°F Feels 48°F |
97% | 7.2 SW | 30.16 inHg | 47.8°F | 0% |
6 AM FogUV Index: 0 |
49°F Feels 49°F |
95% | 5.1 SW | 30.17 inHg | 47.8°F | 0% |
7 AM FogUV Index: 0 |
50°F Feels 49°F |
94% | 3.4 SW | 30.18 inHg | 47.7°F | 0% |
8 AM Overcast UV Index: 0.1 |
50°F Feels 49°F |
92% | 2.2 SSW | 30.19 inHg | 47.7°F | 0% |
Currently
 |
46°F |
30.04in
Barometer 83%
Humidity North 0.0mph Wind |
| Fair | ||
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