NimbocastSan Ramon, CA Weather
Live radar, hourly and 7-day forecast, and National Weather Service alerts for San Ramon, Contra Costa County, California.
Updated Jul 29, 2026, 2:05 PM local time · Radar refreshes every 5 minutes
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San Ramon
78°F
Wind 12 mph
Humidity 49%
Cloud cover 1%
UV index 8
Alerts 0
Active alerts
✓
No active National Weather Service alerts for San Ramon, CA.
San Ramon weather radar
Light
Heavy
Next 24 hours
Now
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78°F
3 PM
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78°F
4 PM
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77°F
5 PM
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75°F
6 PM
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72°F
7 PM
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67°F
8 PM
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63°F
9 PM
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60°F
1%
10 PM
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59°F
1%
11 PM
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58°F
1%
12 AM
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57°F
1%
1 AM
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57°F
1%
2 AM
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56°F
1%
3 AM
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56°F
1%
4 AM
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56°F
1%
5 AM
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54°F
1%
6 AM
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54°F
1%
7 AM
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57°F
1%
8 AM
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61°F
1%
9 AM
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65°F
1%
10 AM
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69°F
11 AM
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73°F
12 PM
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77°F
1 PM
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79°F
7-day forecast
Today
Jul 29
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78°F
57°F
1%
Thu
Jul 30
☀️
80°F
54°F
1%
Fri
Jul 31
☀️
94°F
53°F
2%
Sat
Aug 1
☁️
96°F
56°F
Sun
Aug 2
☀️
97°F
56°F
Mon
Aug 3
☀️
99°F
57°F
Tue
Aug 4
☀️
100°F
57°F
Weather near San Ramon
3 mi
Danville, CA6 mi
Dublin, CA8 mi
Castro Valley, CA9 mi
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Hayward, CA10 mi
San Leandro, CA10 mi
Pleasanton, CA
Alerts are relayed from the National Weather Service and may lag
the official source. In a life-threatening situation always follow
weather.gov and local emergency
broadcasts.