NimbocastSan Mateo, CA Weather
Live radar, hourly and 7-day forecast, and National Weather Service alerts for San Mateo, San Mateo County, California.
Updated Jul 29, 2026, 2:05 PM local time · Radar refreshes every 5 minutes
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San Mateo
75°F
Wind 10 mph
Humidity 56%
Cloud cover 4%
UV index 8
Alerts 0
Active alerts
✓
No active National Weather Service alerts for San Mateo, CA.
San Mateo weather radar
Light
Heavy
Next 24 hours
Now
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75°F
1%
3 PM
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74°F
1%
4 PM
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73°F
1%
5 PM
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71°F
1%
6 PM
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70°F
7 PM
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69°F
8 PM
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66°F
9 PM
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63°F
1%
10 PM
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61°F
1%
11 PM
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60°F
1%
12 AM
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59°F
1%
1 AM
☀️
58°F
1%
2 AM
☀️
58°F
1%
3 AM
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57°F
1%
4 AM
☀️
57°F
5 AM
☀️
57°F
1%
6 AM
☀️
56°F
1%
7 AM
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59°F
1%
8 AM
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65°F
1%
9 AM
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68°F
1%
10 AM
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71°F
1%
11 AM
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74°F
12 PM
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76°F
1 PM
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76°F
7-day forecast
Today
Jul 29
🌫️
75°F
55°F
1%
Thu
Jul 30
☀️
78°F
56°F
1%
Fri
Jul 31
☀️
86°F
56°F
Sat
Aug 1
☀️
89°F
59°F
Sun
Aug 2
☀️
88°F
59°F
Mon
Aug 3
☀️
88°F
58°F
Tue
Aug 4
☀️
87°F
60°F
Weather near San Mateo
3 mi
Foster City, CA3 mi
Burlingame, CA4 mi
Belmont, CA4 mi
Millbrae, CA5 mi
San Carlos, CA7 mi
Redwood City, CA7 mi
San Bruno, CA8 mi
South San Francisco, 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.