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Foster City Weather Warning NWS WEATHER ALERT FOR THE FOSTER CITY, CA AREA - Issued: 346 PM PDT Wed Sep 30 2026 Foster City Weather Warning

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Foster City, CA Weather - Hour by Hour Forecast

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Foster City, CA Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Mostly Clear. Temperature is 57°F14°C, dew point 54°F12°C, humidity 89%. Wind direction is NW at 13 mph21 km/h with visibility of 10 mi16 km. Barometric pressure is 29.84 in1010 mb.
Rest of Tonight - Mostly clear. Lows in the upper 50s. West winds 5 to 10 mph... Full Forecast
Thursday - Partly cloudy in the morning then becoming sunny. Highs in the upper 70s to mid 80s. Light winds...Becoming northwest 5 to 10 mph .. Full Forecast

Foster City Hourly Weather

24 Hour Forecast Scroll
Wed, Sep 30
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Foster City, CA Hourly Weather - Mostly Clear - 11:00 PM Foster City, CA Hourly Weather - Mostly Clear - 12:00 AM Foster City, CA Hourly Weather - Clear - 1:00 AM Foster City, CA Hourly Weather - Clear - 2:00 AM Foster City, CA Hourly Weather - Clear - 3:00 AM Foster City, CA Hourly Weather - Cloudy - 4:00 AM Foster City, CA Hourly Weather - Cloudy - 5:00 AM Foster City, CA Hourly Weather - Cloudy - 6:00 AM Foster City, CA Hourly Weather - Mostly Cloudy - 7:00 AM Foster City, CA Hourly Weather - Mostly Cloudy - 8:00 AM Foster City, CA Hourly Weather - Mostly Cloudy - 9:00 AM Foster City, CA Hourly Weather - Mostly Cloudy - 10:00 AM Foster City, CA Hourly Weather - Mostly Cloudy - 11:00 AM Foster City, CA Hourly Weather - Mostly Cloudy - 12:00 PM Foster City, CA Hourly Weather - Partly Cloudy - 1:00 PM Foster City, CA Hourly Weather - Partly Cloudy - 2:00 PM Foster City, CA Hourly Weather - Partly Cloudy - 3:00 PM Foster City, CA Hourly Weather - Partly Cloudy - 4:00 PM Foster City, CA Hourly Weather - Partly Cloudy - 5:00 PM Foster City, CA Hourly Weather - Partly Cloudy - 6:00 PM Foster City, CA Hourly Weather - Mostly Cloudy - 7:00 PM Foster City, CA Hourly Weather - Mostly Cloudy - 8:00 PM Foster City, CA Hourly Weather - Mostly Cloudy - 9:00 PM Foster City, CA Hourly Weather - Mostly Cloudy - 10:00 PM
Mostly Clear Mostly Clear Clear Clear Clear Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy
58°F14°C 57°F14°C 57°F14°C 56°F13°C 56°F13°C 55°F13°C 55°F13°C 55°F13°C 56°F13°C 56°F13°C 59°F15°C 61°F16°C 64°F18°C 66°F19°C 68°F20°C 70°F21°C 69°F21°C 67°F19°C 66°F19°C 63°F17°C 61°F16°C 58°F14°C 57°F14°C 57°F14°C
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0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
55°F13°C 55°F13°C 54°F12°C 54°F12°C 54°F12°C 54°F12°C 54°F12°C 54°F12°C 55°F13°C 55°F13°C 56°F13°C 57°F14°C 58°F14°C 58°F14°C 58°F14°C 58°F14°C 58°F14°C 57°F14°C 57°F14°C 57°F14°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C
90% 93% 90% 93% 93% 96% 96% 96% 96% 96% 90% 87% 81% 75% 70% 66% 68% 70% 73% 81% 84% 93% 96% 96%
WNW WNW W W W SSW SSW SSW SSW SSW SW S SE S SSW NW NW NW NW NW WNW WNW WNW W
11 mph 11 mph 7 mph 7 mph 7 mph 5 mph 5 mph 5 mph 3 mph 3 mph 3 mph 3 mph 3 mph 3 mph 8 mph 8 mph 8 mph 14 mph 14 mph 14 mph 14 mph 14 mph 14 mph 7 mph
6 mi10 km 6 mi10 km 5 mi8 km 5 mi8 km 6 mi10 km 6 mi10 km 10 mi16 km 5 mi8 km .75 mi1 km .25 mi0 km .5 mi1 km 3 mi5 km 5 mi8 km 6 mi10 km 6 mi10 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 6 mi10 km 6 mi10 km 5 mi8 km 5 mi8 km 5 mi8 km
Hour (PDT)
Weather
Clouds
Temperature
Precip. Type
POP
Dewpoint
Humidity
Wind Direction
Wind Speed
Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KSFO model statistics.

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Prob Precip % = Probability of Precipitation.

Foster City 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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