Current Conditions

South San Francisco, California

76°F24°C

Partly Cloudy

Wind

W 7 mph12 km/h

Humidity

50%

Cloud Cover

57%

As of Tuesday, September 8, 2026 at 5:03 PM PDT

Today's Outlook

Day

Partly cloudy and warm, with a high of 77°F25°C and morning low of 72°F22°C. Breezy from the WNW at 5 to 7 mph8 to 12 km/h.

Night

Overcast, with a low around 66°F19°C. Light wind from the WNW around 5 mph7 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 77°F25°C	Low 66°F19°C	Precip 0 in0 mm—	Cloud 55%	Wind WNW 5 mph8 km/h	Tuesday: Partly cloudy and warm, with a high of 77°F25°C and morning low of 72°F22°C. Breezy from the WNW at 5 to 7 mph8 to 12 km/h. Tuesday Night: Overcast, with a low around 66°F19°C. Light wind from the WNW around 5 mph7 km/h.
Partly Cloudy	High 82°F28°C	Low 65°F18°C	Precip 0 in0 mm—	Cloud 72%	Wind NW 5 mph8 km/h	Wednesday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 67°F19°C. Breezy from the NNW at 6 to 9 mph9 to 14 km/h. Wednesday Night: Mostly cloudy, with a low around 65°F18°C. Breezy from the NW at 4 to 7 mph7 to 11 km/h.
Clear	High 76°F24°C	Low 64°F18°C	Precip 0 in0 mm—	Cloud 21%	Wind W 6 mph10 km/h	Thursday: Mostly clear and warm, with a high of 76°F24°C and morning low of 67°F19°C. Breezy from the W at 7 to 10 mph12 to 16 km/h. Thursday Night: Mostly clear, with a low around 64°F18°C. Breezy from the W at 6 to 8 mph9 to 12 km/h.
Clear	High 69°F20°C	Low 61°F16°C	Precip 0 in0 mm—	Cloud 33%	Wind W 8 mph13 km/h	Friday: Partly cloudy and warm, with a high of 69°F20°C and morning low of 62°F17°C. Breezy from the W at 9 to 10 mph15 to 17 km/h. Friday Night: Partly cloudy, with a low around 61°F16°C. Breezy from the W at 7 to 8 mph12 to 13 km/h.
Clear	High 68°F20°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 17%	Wind W 10 mph17 km/h	Saturday: Mostly clear and mild, with a high of 68°F20°C and morning low of 61°F16°C. Breezy from the W at 11 to 13 mph18 to 21 km/h. Saturday Night: Mostly clear, with a low around 59°F15°C. Breezy from the W at 10 to 12 mph15 to 19 km/h.
Clear	High 70°F21°C	Low 58°F15°C	Precip 0 in0 mm—	Cloud 10%	Wind WNW 10 mph15 km/h	Sunday: Mostly clear and warm, with a high of 70°F21°C and morning low of 60°F16°C. Breezy from the WNW at 10 to 13 mph16 to 20 km/h. Sunday Night: Mostly clear, with a low around 58°F15°C. Breezy from the WNW at 9 to 10 mph15 to 16 km/h.
Clear	High 70°F21°C	Low 58°F15°C	Precip 0 in0 mm—	Cloud 20%	Wind WNW 8 mph13 km/h	Monday: Mostly clear and warm, with a high of 70°F21°C and morning low of 59°F15°C. Breezy from the WNW at 8 to 12 mph13 to 19 km/h. Monday Night: Mostly clear, with a low around 58°F15°C. Breezy from the WNW at 8 to 9 mph12 to 15 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 8	77°F25°C	66°F19°C	0 in0 mm· —	55%	Partly Cloudy	WNW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 72°F22°C. Breezy from the WNW at 5 to 7 mph8 to 12 km/h. NightOvercast, with a low around 66°F19°C. Light wind from the WNW around 5 mph7 km/h.
	WednesdaySep 9	82°F28°C	65°F18°C	0 in0 mm· —	72%	Partly Cloudy	NW 5 mph8 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 67°F19°C. Breezy from the NNW at 6 to 9 mph9 to 14 km/h. NightMostly cloudy, with a low around 65°F18°C. Breezy from the NW at 4 to 7 mph7 to 11 km/h.
	ThursdaySep 10	76°F24°C	64°F18°C	0 in0 mm· —	21%	Clear	W 6 mph10 km/h
DayMostly clear and warm, with a high of 76°F24°C and morning low of 67°F19°C. Breezy from the W at 7 to 10 mph12 to 16 km/h. NightMostly clear, with a low around 64°F18°C. Breezy from the W at 6 to 8 mph9 to 12 km/h.
	FridaySep 11	69°F20°C	61°F16°C	0 in0 mm· —	33%	Clear	W 8 mph13 km/h
DayPartly cloudy and warm, with a high of 69°F20°C and morning low of 62°F17°C. Breezy from the W at 9 to 10 mph15 to 17 km/h. NightPartly cloudy, with a low around 61°F16°C. Breezy from the W at 7 to 8 mph12 to 13 km/h.
	SaturdaySep 12	68°F20°C	59°F15°C	0 in0 mm· —	17%	Clear	W 10 mph17 km/h
DayMostly clear and mild, with a high of 68°F20°C and morning low of 61°F16°C. Breezy from the W at 11 to 13 mph18 to 21 km/h. NightMostly clear, with a low around 59°F15°C. Breezy from the W at 10 to 12 mph15 to 19 km/h.
	SundaySep 13	70°F21°C	58°F15°C	0 in0 mm· —	10%	Clear	WNW 10 mph15 km/h
DayMostly clear and warm, with a high of 70°F21°C and morning low of 60°F16°C. Breezy from the WNW at 10 to 13 mph16 to 20 km/h. NightMostly clear, with a low around 58°F15°C. Breezy from the WNW at 9 to 10 mph15 to 16 km/h.
	MondaySep 14	70°F21°C	58°F15°C	0 in0 mm· —	20%	Clear	WNW 8 mph13 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 8 to 12 mph13 to 19 km/h. NightMostly clear, with a low around 58°F15°C. Breezy from the WNW at 8 to 9 mph12 to 15 km/h.
	TuesdaySep 15	67°F20°C	58°F15°C	0 in0 mm· —	48%	Partly Cloudy	W 8 mph13 km/h
DayMostly cloudy and mild, with a high of 67°F20°C and morning low of 60°F16°C. Breezy from the W at 9 to 11 mph14 to 17 km/h. NightPartly cloudy, with a low around 58°F15°C. Breezy from the W at 8 to 9 mph12 to 14 km/h.
	WednesdaySep 16	67°F19°C	59°F15°C	0 in0.1 mm· —	48%	Partly Cloudy	W 8 mph12 km/h
DayPartly cloudy and mild, with a high of 67°F19°C and morning low of 60°F15°C. Breezy from the W at 8 to 10 mph13 to 16 km/h. NightMostly cloudy, with a low around 59°F15°C. Breezy from the W at 7 to 8 mph11 to 13 km/h.
	ThursdaySep 17	68°F20°C	58°F14°C	0 in0 mm· —	34%	Clear	W 7 mph11 km/h
DayPartly cloudy and warm, with a high of 68°F20°C and morning low of 59°F15°C. Breezy from the W at 7 to 10 mph12 to 16 km/h. NightPartly cloudy, with a low around 58°F14°C. Breezy from the W at 6 to 7 mph10 to 12 km/h.
	FridaySep 18	68°F20°C	58°F14°C	0 in0 mm· —	36%	Clear	W 6 mph10 km/h
DayPartly cloudy and warm, with a high of 68°F20°C and morning low of 59°F15°C. Breezy from the W at 7 to 9 mph11 to 15 km/h. NightPartly cloudy, with a low around 58°F14°C. Breezy from the W at 6 to 7 mph9 to 12 km/h.
	SaturdaySep 19	69°F20°C	58°F15°C	0 in0 mm· —	41%	Partly Cloudy	W 7 mph11 km/h
DayPartly cloudy and warm, with a high of 69°F20°C and morning low of 59°F15°C. Breezy from the W at 7 to 10 mph12 to 15 km/h. NightPartly cloudy, with a low around 58°F15°C. Breezy from the W at 6 to 7 mph10 to 12 km/h.
	SundaySep 20	68°F20°C	58°F15°C	0.01 in0.3 mm· 3%	48%	Partly Cloudy	W 7 mph11 km/h
DayPartly cloudy and warm, with a high of 68°F20°C and morning low of 59°F15°C. Breezy from the W at 7 to 10 mph12 to 16 km/h. NightMostly cloudy, with a low around 58°F15°C. Breezy from the W at 6 to 8 mph10 to 12 km/h.
	MondaySep 21	68°F20°C	59°F15°C	0.01 in0.3 mm· 2%	50%	Partly Cloudy	W 7 mph11 km/h
DayPartly cloudy and warm, with a high of 68°F20°C and morning low of 60°F15°C. Breezy from the W at 8 to 10 mph12 to 16 km/h. NightMostly cloudy, with a low around 59°F15°C. Breezy from the W at 7 to 8 mph11 to 12 km/h.
	TuesdaySep 22	69°F21°C	59°F15°C	0.01 in0.2 mm· 2%	46%	Partly Cloudy	W 7 mph11 km/h
DayPartly cloudy and warm, with a high of 69°F21°C and morning low of 60°F16°C. Breezy from the W at 8 to 10 mph12 to 16 km/h. NightPartly cloudy, with a low around 59°F15°C. Breezy from the W at 6 to 8 mph10 to 12 km/h.

Nearby Cities

San Bruno2 mi3 km Millbrae4 mi6 km Visitacion Valley4 mi7 km Daly City5 mi7 km Pacifica5 mi8 km Bayview-Hunters Point5 mi9 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: 37.6547°N, 122.4077°W·Elevation: 4m·Timezone: America/Los_Angeles·Population: 67,271