Current Conditions

San Mateo, California

66°F19°C

Drizzle

Wind

SSW 9 mph14 km/h

Humidity

73%

Cloud Cover

86%

As of Wednesday, September 2, 2026 at 11:21 AM PDT

Today's Outlook

Day

Mostly cloudy and warm, with a high of 68°F20°C and morning low of 62°F17°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 30% chance of drizzle around midday.

Night

Mostly cloudy, with a low around 60°F16°C. Light wind from the SW around 5 mph9 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 68°F20°C	Low 60°F16°C	Precip 0.02 in0.5 mm30%	Cloud 64%	Wind SW 7 mph11 km/h	Wednesday: Mostly cloudy and warm, with a high of 68°F20°C and morning low of 62°F17°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 30% chance of drizzle around midday. Wednesday Night: Mostly cloudy, with a low around 60°F16°C. Light wind from the SW around 5 mph9 km/h.
Drizzle	High 68°F20°C	Low 59°F15°C	Precip 0.03 in0.7 mm38%	Cloud 66%	Wind SW 7 mph11 km/h	Thursday: Mostly cloudy and warm, with a high of 68°F20°C and morning low of 61°F16°C. Breezy from the SSW at 9 to 11 mph14 to 17 km/h. 30% chance of drizzle in the afternoon. Thursday Night: Mostly cloudy, with a low around 59°F15°C. Light wind from the WSW around 5 mph8 km/h. 38% chance of drizzle in the evening.
Clear	High 68°F20°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 20%	Wind WNW 6 mph9 km/h	Friday: Mostly clear and mild, with a high of 68°F20°C and morning low of 60°F16°C. Breezy from the WNW at 6 to 9 mph10 to 15 km/h. Friday Night: Mostly clear, with a low around 59°F15°C. Breezy from the WNW at 5 to 7 mph8 to 12 km/h.
Clear	High 69°F21°C	Low 58°F14°C	Precip 0 in0 mm—	Cloud 24%	Wind W 6 mph10 km/h	Saturday: Partly cloudy and warm, with a high of 69°F21°C and morning low of 60°F15°C. Breezy from the W at 7 to 10 mph11 to 16 km/h. Saturday Night: Mostly clear, with a low around 58°F14°C. Breezy from the WNW at 5 to 8 mph8 to 12 km/h.
Clear	High 67°F20°C	Low 58°F15°C	Precip 0 in0 mm—	Cloud 26%	Wind W 8 mph13 km/h	Sunday: Mostly clear and mild, with a high of 67°F20°C and morning low of 60°F16°C. Breezy from the W at 9 to 11 mph15 to 18 km/h. Sunday Night: Partly cloudy, with a low around 58°F15°C. Breezy from the W at 7 to 8 mph11 to 13 km/h.
Clear	High 73°F23°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 22%	Wind NW 5 mph9 km/h	Monday: Mostly clear and warm, with a high of 73°F23°C and morning low of 59°F15°C. Breezy from the NW at 6 to 10 mph10 to 16 km/h. Monday Night: Partly cloudy, with a low around 57°F14°C. Breezy from the WNW at 5 to 7 mph8 to 11 km/h.
Clear	High 73°F23°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 35%	Wind W 5 mph8 km/h	Tuesday: Partly cloudy and warm, with a high of 73°F23°C and morning low of 60°F16°C. Breezy from the WNW at 6 to 8 mph9 to 13 km/h. Tuesday Night: Partly cloudy, with a low around 59°F15°C. Light wind from the W around 4 mph7 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	68°F20°C	60°F16°C	0.02 in0.5 mm· 30%	64%	Drizzle	SW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 62°F17°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 30% chance of drizzle around midday. NightMostly cloudy, with a low around 60°F16°C. Light wind from the SW around 5 mph9 km/h.
	ThursdaySep 3	68°F20°C	59°F15°C	0.03 in0.7 mm· 38%	66%	Drizzle	SW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 61°F16°C. Breezy from the SSW at 9 to 11 mph14 to 17 km/h. 30% chance of drizzle in the afternoon. NightMostly cloudy, with a low around 59°F15°C. Light wind from the WSW around 5 mph8 km/h. 38% chance of drizzle in the evening.
	FridaySep 4	68°F20°C	59°F15°C	0 in0 mm· —	20%	Clear	WNW 6 mph9 km/h
DayMostly clear and mild, with a high of 68°F20°C and morning low of 60°F16°C. Breezy from the WNW at 6 to 9 mph10 to 15 km/h. NightMostly clear, with a low around 59°F15°C. Breezy from the WNW at 5 to 7 mph8 to 12 km/h.
	SaturdaySep 5	69°F21°C	58°F14°C	0 in0 mm· —	24%	Clear	W 6 mph10 km/h
DayPartly cloudy and warm, with a high of 69°F21°C and morning low of 60°F15°C. Breezy from the W at 7 to 10 mph11 to 16 km/h. NightMostly clear, with a low around 58°F14°C. Breezy from the WNW at 5 to 8 mph8 to 12 km/h.
	SundaySep 6	67°F20°C	58°F15°C	0 in0 mm· —	26%	Clear	W 8 mph13 km/h
DayMostly clear and mild, with a high of 67°F20°C and morning low of 60°F16°C. Breezy from the W at 9 to 11 mph15 to 18 km/h. NightPartly cloudy, with a low around 58°F15°C. Breezy from the W at 7 to 8 mph11 to 13 km/h.
	MondaySep 7	73°F23°C	57°F14°C	0 in0 mm· —	22%	Clear	NW 5 mph9 km/h
DayMostly clear and warm, with a high of 73°F23°C and morning low of 59°F15°C. Breezy from the NW at 6 to 10 mph10 to 16 km/h. NightPartly cloudy, with a low around 57°F14°C. Breezy from the WNW at 5 to 7 mph8 to 11 km/h.
	TuesdaySep 8	73°F23°C	59°F15°C	0 in0 mm· —	35%	Clear	W 5 mph8 km/h
DayPartly cloudy and warm, with a high of 73°F23°C and morning low of 60°F16°C. Breezy from the WNW at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the W around 4 mph7 km/h.
	WednesdaySep 9	75°F24°C	61°F16°C	0.01 in0.2 mm· 4%	40%	Clear	W 5 mph8 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 63°F17°C. Breezy from the W at 5 to 8 mph9 to 12 km/h. NightPartly cloudy, with a low around 61°F16°C. Light wind from the W around 4 mph7 km/h.
	ThursdaySep 10	74°F23°C	62°F16°C	0.01 in0.3 mm· 3%	37%	Clear	W 5 mph9 km/h
DayPartly cloudy and warm, with a high of 74°F23°C and morning low of 63°F17°C. Breezy from the W at 6 to 8 mph10 to 13 km/h. NightPartly cloudy, with a low around 62°F16°C. Light wind from the WSW around 5 mph7 km/h.
	FridaySep 11	72°F22°C	61°F16°C	0.01 in0.2 mm· 2%	38%	Clear	W 6 mph10 km/h
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 62°F17°C. Breezy from the W at 7 to 9 mph11 to 14 km/h. NightPartly cloudy, with a low around 61°F16°C. Light wind from the WSW around 5 mph9 km/h.
	SaturdaySep 12	71°F22°C	60°F15°C	0.02 in0.4 mm· 3%	41%	Partly Cloudy	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 W at 7 to 9 mph11 to 14 km/h. NightPartly cloudy, with a low around 60°F15°C. Light wind from the W around 5 mph9 km/h.
	SundaySep 13	72°F22°C	60°F15°C	0.03 in0.8 mm· 5%	40%	Partly Cloudy	W 6 mph9 km/h
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 62°F17°C. Breezy from the W at 6 to 9 mph10 to 14 km/h. NightPartly cloudy, with a low around 60°F15°C. Light wind from the W around 5 mph8 km/h.
	MondaySep 14	72°F22°C	60°F15°C	0.02 in0.5 mm· 6%	35%	Clear	W 6 mph9 km/h
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 62°F16°C. Breezy from the W at 7 to 9 mph10 to 14 km/h. NightPartly cloudy, with a low around 60°F15°C. Light wind from the W around 5 mph8 km/h.
	TuesdaySep 15	72°F22°C	60°F16°C	0.01 in0.2 mm· 5%	34%	Clear	W 5 mph9 km/h
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 62°F17°C. Breezy from the W at 6 to 8 mph10 to 13 km/h. NightPartly cloudy, with a low around 60°F16°C. Light wind from the W around 5 mph7 km/h.
	WednesdaySep 16	72°F22°C	60°F16°C	0.01 in0.2 mm· 2%	38%	Clear	W 5 mph8 km/h
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 61°F16°C. Breezy from the W at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 60°F16°C. Light wind from the W around 4 mph7 km/h.

Nearby Cities

Burlingame3 mi4 km Foster City3 mi5 km Belmont4 mi6 km Millbrae4 mi7 km San Carlos5 mi8 km San Bruno7 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: 37.5630°N, 122.3255°W·Elevation: 13m·Timezone: America/Los_Angeles·Population: 103,536