Foster City, CA Weather Forecast
San Mateo County, California
Live radar, warnings and storm tracking for Foster City, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Foster City
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Foster City, CA at a glance
Foster City is home to about 32,180 people in San Mateo County, across 3.8 square miles. It ranks 230th by population of 450 places in California with a forecast here. The nearest neighbour with its own forecast is San Mateo, 3 miles away.
- County
- San Mateo County
- Population
- 32,180 2023 est.
- Land area
- 3.8 sq mi
- People per sq mi
- 8,497
- Forecast point
- 37.5648°N, 122.2508°W
How well can the network see Foster City?
The nearest Doppler radar is KMUX (San Francisco, CA), to the SE. Its lowest scan passes about 2,200 ft above Foster City. Close enough to see rotation in the low part of a storm, where tornadoes form. Foster City is closer to its radar than 64% of US cities.
The closest weather station is KSQL (San Carlos Arpt). Close enough that its readings are the conditions in town.
Forecasts near Foster City
- San Mateo, CA3 mi
- Redwood City, CA4 mi
- Belmont, CA4 mi
- San Carlos, CA5 mi
- Hillsborough, CA6 mi
- Burlingame, CA6 mi
- Atherton, CA8 mi
- Menlo Park, CA8 mi
Elsewhere in California
Los AngelesSan DiegoSan JoseSan FranciscoFresnoSacramentoAll California forecasts →