Current Conditions

Foster City, California

58°F15°C

Clear

Wind

WSW 4 mph7 km/h

Humidity

93%

Cloud Cover

41%

As of Tuesday, September 22, 2026 at 9:53 PM PDT

Today's Outlook

Night

Partly cloudy, with a low around 56°F13°C. Light wind from the WSW around 4 mph6 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 75°F24°C	Low 56°F13°C	Precip 0 in0 mm—	Cloud 35%	Wind WNW 4 mph6 km/h	Wednesday: Partly cloudy and warm, with a high of 75°F24°C and morning low of 57°F14°C. Breezy from the WNW at 4 to 8 mph7 to 12 km/h. Wednesday Night: Partly cloudy, with a low around 56°F13°C. Light wind from the WSW around 4 mph6 km/h.
Partly Cloudy	High 74°F23°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 62%	Wind W 5 mph8 km/h	Thursday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 58°F14°C. Breezy from the W at 6 to 8 mph9 to 13 km/h. Thursday Night: Mostly cloudy, with a low around 57°F14°C. Light wind from the W around 4 mph7 km/h.
Clear	High 71°F22°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 37%	Wind W 6 mph10 km/h	Friday: Partly cloudy and warm, with a high of 71°F22°C and morning low of 61°F16°C. Breezy from the WNW at 8 to 10 mph12 to 15 km/h. Friday Night: Partly cloudy, with a low around 59°F15°C. Light wind from the W around 5 mph7 km/h.
Partly Cloudy	High 70°F21°C	Low 55°F13°C	Precip 0 in0 mm—	Cloud 43%	Wind WSW 4 mph7 km/h	Saturday: Partly cloudy and warm, with a high of 70°F21°C and morning low of 56°F13°C. Breezy from the W at 5 to 7 mph8 to 12 km/h. Saturday Night: Partly cloudy, with a low around 55°F13°C. Light wind from the WSW around 4 mph6 km/h.
Partly Cloudy	High 67°F19°C	Low 56°F13°C	Precip 0 in0 mm—	Cloud 48%	Wind WSW 6 mph10 km/h	Sunday: Partly cloudy and mild, with a high of 67°F19°C and morning low of 59°F15°C. Breezy from the WSW at 7 to 8 mph11 to 13 km/h. Sunday Night: Partly cloudy, with a low around 56°F13°C. Light wind from the WSW around 5 mph8 km/h.
Clear	High 71°F21°C	Low 56°F13°C	Precip 0 in0 mm—	Cloud 26%	Wind W 5 mph7 km/h	Monday: Mostly clear and warm, with a high of 71°F21°C and morning low of 57°F14°C. Breezy from the WNW at 5 to 8 mph8 to 13 km/h. Monday Night: Partly cloudy, with a low around 56°F13°C. Light wind from the W around 4 mph6 km/h.
Clear	High 76°F24°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 16%	Wind W 4 mph7 km/h	Tuesday: Mostly clear and warm, with a high of 76°F24°C and morning low of 59°F15°C. Breezy from the WNW at 5 to 7 mph8 to 12 km/h. Tuesday Night: Mostly clear, with a low around 57°F14°C. Light wind from the W around 3 mph5 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	75°F24°C	56°F13°C	0 in0 mm· —	35%	Clear	WNW 4 mph6 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 57°F14°C. Breezy from the WNW at 4 to 8 mph7 to 12 km/h. NightPartly cloudy, with a low around 56°F13°C. Light wind from the WSW around 4 mph6 km/h.
	ThursdaySep 24	74°F23°C	57°F14°C	0 in0 mm· —	62%	Partly Cloudy	W 5 mph8 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 58°F14°C. Breezy from the W at 6 to 8 mph9 to 13 km/h. NightMostly cloudy, with a low around 57°F14°C. Light wind from the W around 4 mph7 km/h.
	FridaySep 25	71°F22°C	59°F15°C	0 in0 mm· —	37%	Clear	W 6 mph10 km/h
DayPartly cloudy and warm, with a high of 71°F22°C and morning low of 61°F16°C. Breezy from the WNW at 8 to 10 mph12 to 15 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the W around 5 mph7 km/h.
	SaturdaySep 26	70°F21°C	55°F13°C	0 in0 mm· —	43%	Partly Cloudy	WSW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 70°F21°C and morning low of 56°F13°C. Breezy from the W at 5 to 7 mph8 to 12 km/h. NightPartly cloudy, with a low around 55°F13°C. Light wind from the WSW around 4 mph6 km/h.
	SundaySep 27	67°F19°C	56°F13°C	0 in0 mm· —	48%	Partly Cloudy	WSW 6 mph10 km/h
DayPartly cloudy and mild, with a high of 67°F19°C and morning low of 59°F15°C. Breezy from the WSW at 7 to 8 mph11 to 13 km/h. NightPartly cloudy, with a low around 56°F13°C. Light wind from the WSW around 5 mph8 km/h.
	MondaySep 28	71°F21°C	56°F13°C	0 in0 mm· —	26%	Clear	W 5 mph7 km/h
DayMostly clear and warm, with a high of 71°F21°C and morning low of 57°F14°C. Breezy from the WNW at 5 to 8 mph8 to 13 km/h. NightPartly cloudy, with a low around 56°F13°C. Light wind from the W around 4 mph6 km/h.
	TuesdaySep 29	76°F24°C	57°F14°C	0 in0 mm· —	16%	Clear	W 4 mph7 km/h
DayMostly clear and warm, with a high of 76°F24°C and morning low of 59°F15°C. Breezy from the WNW at 5 to 7 mph8 to 12 km/h. NightMostly clear, with a low around 57°F14°C. Light wind from the W around 3 mph5 km/h.
	WednesdaySep 30	76°F25°C	59°F15°C	0.01 in0.2 mm· 2%	36%	Clear	W 4 mph6 km/h
DayPartly cloudy and warm, with a high of 76°F25°C and morning low of 59°F15°C. Light wind from the WNW around 4 mph7 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the W around 3 mph6 km/h.
	ThursdayOct 1	75°F24°C	59°F15°C	0.01 in0.3 mm· 3%	46%	Partly Cloudy	W 4 mph7 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 60°F15°C. Breezy from the W at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the W around 4 mph6 km/h.
	FridayOct 2	76°F24°C	59°F15°C	0 in0.1 mm· 2%	31%	Clear	WNW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 76°F24°C and morning low of 59°F15°C. Breezy from the WNW at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the W around 4 mph6 km/h.
	SaturdayOct 3	77°F25°C	60°F15°C	0.01 in0.2 mm· 2%	27%	Clear	W 4 mph7 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 60°F16°C. Light wind from the WNW around 5 mph8 km/h. NightPartly cloudy, with a low around 60°F15°C. Light wind from the W around 4 mph6 km/h.
	SundayOct 4	76°F25°C	60°F16°C	0.01 in0.3 mm· 3%	26%	Clear	W 4 mph7 km/h
DayPartly cloudy and warm, with a high of 76°F25°C and morning low of 61°F16°C. Light wind from the WNW around 5 mph8 km/h. NightPartly cloudy, with a low around 60°F16°C. Light wind from the WSW around 4 mph6 km/h.
	MondayOct 5	76°F24°C	60°F16°C	0.01 in0.3 mm· 2%	26%	Clear	W 4 mph6 km/h
DayPartly cloudy and warm, with a high of 76°F24°C and morning low of 60°F16°C. Light wind from the WNW around 5 mph7 km/h. NightPartly cloudy, with a low around 60°F16°C. Light wind from the WSW around 3 mph5 km/h.
	TuesdayOct 6	76°F24°C	60°F16°C	0.01 in0.2 mm· 3%	28%	Clear	W 4 mph7 km/h
DayPartly cloudy and warm, with a high of 76°F24°C and morning low of 61°F16°C. Light wind from the W around 5 mph8 km/h. NightPartly cloudy, with a low around 60°F16°C. Light wind from the W around 4 mph6 km/h.
	WednesdayOct 7	75°F24°C	60°F15°C	0.02 in0.4 mm· 4%	35%	Clear	W 5 mph7 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 60°F16°C. Breezy from the W at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 60°F15°C. Light wind from the WSW around 3 mph5 km/h.

Nearby Cities

Belmont3 mi4 km San Mateo3 mi5 km San Carlos4 mi6 km Redwood City5 mi9 km Burlingame5 mi9 km Millbrae7 mi11 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 37.5585°N, 122.2711°W·Elevation: 2m·Timezone: America/Los_Angeles·Population: 33,477