NimbocastFoster City, CA Weather
Live radar, hourly and 7-day forecast, and National Weather Service alerts for Foster City, San Mateo County, California.
Updated Jul 29, 2026, 2:04 PM local time · Radar refreshes every 5 minutes
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Foster City
75°F
Wind 13 mph
Humidity 57%
Cloud cover 5%
UV index 8
Alerts 0
Active alerts
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No active National Weather Service alerts for Foster City, CA.
Foster City weather radar
Light
Heavy
Next 24 hours
Now
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75°F
3 PM
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75°F
4 PM
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74°F
5 PM
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72°F
6 PM
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71°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
10 PM
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61°F
11 PM
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59°F
12 AM
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58°F
1 AM
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58°F
2 AM
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57°F
3 AM
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56°F
4 AM
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55°F
5 AM
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55°F
6 AM
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54°F
7 AM
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55°F
8 AM
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63°F
9 AM
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68°F
10 AM
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71°F
11 AM
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74°F
12 PM
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77°F
1 PM
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78°F
7-day forecast
Today
Jul 29
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75°F
55°F
Thu
Jul 30
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79°F
54°F
Fri
Jul 31
☀️
86°F
54°F
Sat
Aug 1
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89°F
59°F
Sun
Aug 2
☀️
88°F
59°F
Mon
Aug 3
☀️
88°F
59°F
Tue
Aug 4
☀️
88°F
60°F
Weather near Foster City
3 mi
San Mateo, CA3 mi
Belmont, CA4 mi
San Carlos, CA5 mi
Redwood City, CA5 mi
Burlingame, CA7 mi
Millbrae, CA9 mi
San Bruno, CA9 mi
Menlo Park, 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.