Current Conditions

San Bruno, California

63°F17°C

Clear

Wind

NNW 3 mph6 km/h

Humidity

77%

Cloud Cover

24%

As of Wednesday, September 23, 2026 at 12:27 PM PDT

Today's Outlook

Day

Mostly clear and warm, with a high of 71°F21°C and morning low of 63°F17°C. Breezy from the NW at 7 to 9 mph11 to 15 km/h.

Night

Mostly clear, with a low around 62°F17°C. Breezy from the WNW at 6 to 7 mph9 to 11 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 71°F21°C	Low 62°F17°C	Precip 0 in0 mm—	Cloud 13%	Wind WNW 6 mph10 km/h	Wednesday: Mostly clear and warm, with a high of 71°F21°C and morning low of 63°F17°C. Breezy from the NW at 7 to 9 mph11 to 15 km/h. Wednesday Night: Mostly clear, with a low around 62°F17°C. Breezy from the WNW at 6 to 7 mph9 to 11 km/h.
Partly Cloudy	High 70°F21°C	Low 58°F14°C	Precip 0 in0 mm—	Cloud 60%	Wind W 6 mph10 km/h	Thursday: Mostly cloudy and warm, with a high of 70°F21°C and morning low of 58°F15°C. Breezy from the W at 6 to 10 mph10 to 17 km/h. Thursday Night: Mostly cloudy, with a low around 58°F14°C. Breezy from the W at 6 to 8 mph9 to 12 km/h.
Clear	High 68°F20°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 32%	Wind WNW 9 mph14 km/h	Friday: Partly cloudy and mild, with a high of 68°F20°C and morning low of 60°F16°C. Breezy from the WNW at 10 to 13 mph16 to 20 km/h. Friday Night: Partly cloudy, with a low around 59°F15°C. Breezy from the WNW at 7 to 9 mph12 to 14 km/h.
Partly Cloudy	High 66°F19°C	Low 56°F13°C	Precip 0 in0 mm—	Cloud 46%	Wind W 6 mph10 km/h	Saturday: Partly cloudy and mild, with a high of 66°F19°C and morning low of 57°F14°C. Breezy from the W at 7 to 10 mph11 to 16 km/h. Saturday Night: Partly cloudy, with a low around 56°F13°C. Breezy from the W at 6 to 7 mph10 to 12 km/h.
Partly Cloudy	High 64°F18°C	Low 56°F14°C	Precip 0 in0 mm—	Cloud 49%	Wind W 8 mph13 km/h	Sunday: Partly cloudy and mild, with a high of 64°F18°C and morning low of 57°F14°C. Breezy from the W at 9 to 10 mph14 to 17 km/h. Sunday Night: Mostly cloudy, with a low around 56°F14°C. Breezy from the W at 7 to 8 mph12 to 13 km/h.
Clear	High 68°F20°C	Low 56°F13°C	Precip 0 in0.1 mm1%	Cloud 26%	Wind WNW 6 mph10 km/h	Monday: Mostly clear and mild, with a high of 68°F20°C and morning low of 57°F14°C. Breezy from the WNW at 6 to 10 mph10 to 16 km/h. Monday Night: Partly cloudy, with a low around 56°F13°C. Light wind from the W around 6 mph9 km/h.
Clear	High 70°F21°C	Low 58°F14°C	Precip 0.01 in0.3 mm3%	Cloud 22%	Wind W 6 mph9 km/h	Tuesday: Mostly clear and warm, with a high of 70°F21°C and morning low of 59°F15°C. Breezy from the WNW at 6 to 9 mph10 to 15 km/h. Tuesday Night: Mostly clear, with a low around 58°F14°C. Breezy from the W at 5 to 7 mph8 to 11 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	71°F21°C	62°F17°C	0 in0 mm· —	13%	Clear	WNW 6 mph10 km/h
DayMostly clear and warm, with a high of 71°F21°C and morning low of 63°F17°C. Breezy from the NW at 7 to 9 mph11 to 15 km/h. NightMostly clear, with a low around 62°F17°C. Breezy from the WNW at 6 to 7 mph9 to 11 km/h.
	ThursdaySep 24	70°F21°C	58°F14°C	0 in0 mm· —	60%	Partly Cloudy	W 6 mph10 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 58°F15°C. Breezy from the W at 6 to 10 mph10 to 17 km/h. NightMostly cloudy, with a low around 58°F14°C. Breezy from the W at 6 to 8 mph9 to 12 km/h.
	FridaySep 25	68°F20°C	59°F15°C	0 in0 mm· —	32%	Clear	WNW 9 mph14 km/h
DayPartly cloudy and mild, with a high of 68°F20°C and morning low of 60°F16°C. Breezy from the WNW at 10 to 13 mph16 to 20 km/h. NightPartly cloudy, with a low around 59°F15°C. Breezy from the WNW at 7 to 9 mph12 to 14 km/h.
	SaturdaySep 26	66°F19°C	56°F13°C	0 in0 mm· —	46%	Partly Cloudy	W 6 mph10 km/h
DayPartly cloudy and mild, with a high of 66°F19°C and morning low of 57°F14°C. Breezy from the W at 7 to 10 mph11 to 16 km/h. NightPartly cloudy, with a low around 56°F13°C. Breezy from the W at 6 to 7 mph10 to 12 km/h.
	SundaySep 27	64°F18°C	56°F14°C	0 in0 mm· —	49%	Partly Cloudy	W 8 mph13 km/h
DayPartly cloudy and mild, with a high of 64°F18°C and morning low of 57°F14°C. Breezy from the W at 9 to 10 mph14 to 17 km/h. NightMostly cloudy, with a low around 56°F14°C. Breezy from the W at 7 to 8 mph12 to 13 km/h.
	MondaySep 28	68°F20°C	56°F13°C	0 in0.1 mm· 1%	26%	Clear	WNW 6 mph10 km/h
DayMostly clear and mild, with a high of 68°F20°C and morning low of 57°F14°C. Breezy from the WNW at 6 to 10 mph10 to 16 km/h. NightPartly cloudy, with a low around 56°F13°C. Light wind from the W around 6 mph9 km/h.
	TuesdaySep 29	70°F21°C	58°F14°C	0.01 in0.3 mm· 3%	22%	Clear	W 6 mph9 km/h
DayMostly clear and warm, with a high of 70°F21°C and morning low of 59°F15°C. Breezy from the WNW at 6 to 9 mph10 to 15 km/h. NightMostly clear, with a low around 58°F14°C. Breezy from the W at 5 to 7 mph8 to 11 km/h.
	WednesdaySep 30	71°F22°C	59°F15°C	0.02 in0.5 mm· 4%	35%	Clear	W 6 mph9 km/h
DayPartly cloudy and warm, with a high of 71°F22°C and morning low of 59°F15°C. Breezy from the W at 6 to 9 mph10 to 14 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the W around 5 mph9 km/h.
	ThursdayOct 1	70°F21°C	59°F15°C	0.01 in0.3 mm· 4%	44%	Partly Cloudy	W 6 mph10 km/h
DayPartly cloudy and warm, with a high of 70°F21°C and morning low of 59°F15°C. Breezy from the WNW at 7 to 9 mph11 to 15 km/h. NightPartly cloudy, with a low around 59°F15°C. Breezy from the W at 6 to 7 mph9 to 11 km/h.
	FridayOct 2	72°F22°C	58°F15°C	0 in0.1 mm· 4%	30%	Clear	WNW 6 mph9 km/h
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 59°F15°C. Breezy from the WNW at 6 to 9 mph10 to 14 km/h. NightPartly cloudy, with a low around 58°F15°C. Light wind from the WNW around 5 mph8 km/h.
	SaturdayOct 3	74°F23°C	59°F15°C	0 in0.1 mm· 2%	28%	Clear	WNW 5 mph9 km/h
DayPartly cloudy and warm, with a high of 74°F23°C and morning low of 60°F16°C. Breezy from the NW at 6 to 8 mph10 to 13 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the WNW around 5 mph8 km/h.
	SundayOct 4	73°F23°C	60°F16°C	0 in0.1 mm· 1%	30%	Clear	WNW 5 mph9 km/h
DayPartly cloudy and warm, with a high of 73°F23°C and morning low of 61°F16°C. Breezy from the WNW 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 mph8 km/h.
	MondayOct 5	72°F22°C	60°F15°C	0.01 in0.3 mm· 3%	32%	Clear	W 5 mph8 km/h
DayPartly cloudy and warm, with a high of 72°F22°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 60°F15°C. Light wind from the W around 5 mph7 km/h.
	TuesdayOct 6	73°F23°C	60°F15°C	0.01 in0.2 mm· 2%	31%	Clear	W 5 mph8 km/h
DayPartly cloudy and warm, with a high of 73°F23°C and morning low of 61°F16°C. Breezy from the WNW at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 60°F15°C. Light wind from the W around 5 mph8 km/h.
	WednesdayOct 7	72°F22°C	60°F16°C	0.01 in0.3 mm· 2%	33%	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 WNW at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 60°F16°C. Light wind from the W around 5 mph8 km/h.

Nearby Cities

South San Francisco2 mi3 km Millbrae3 mi4 km Burlingame4 mi7 km Pacifica4 mi7 km Daly City6 mi9 km Visitacion Valley6 mi10 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: 37.6305°N, 122.4111°W·Elevation: 5m·Timezone: America/Los_Angeles·Population: 43,185