Current Conditions

Belmont, California

62°F17°C

Partly Cloudy

Wind

WSW 5 mph8 km/h

Humidity

78%

Cloud Cover

89%

As of Tuesday, September 22, 2026 at 9:32 AM PDT

Today's Outlook

Day

Mostly cloudy and mild, with a high of 66°F19°C and morning low of 59°F15°C. Breezy from the W at 6 to 8 mph10 to 12 km/h.

Night

Mostly cloudy, with a low around 58°F15°C. Light wind from the W around 5 mph8 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 66°F19°C	Low 58°F15°C	Precip 0.01 in0.2 mm2%	Cloud 65%	Wind W 6 mph9 km/h	Tuesday: Mostly cloudy and mild, with a high of 66°F19°C and morning low of 59°F15°C. Breezy from the W at 6 to 8 mph10 to 12 km/h. Tuesday Night: Mostly cloudy, with a low around 58°F15°C. Light wind from the W around 5 mph8 km/h.
Clear	High 75°F24°C	Low 58°F14°C	Precip 0 in0 mm—	Cloud 37%	Wind WNW 4 mph6 km/h	Wednesday: Partly cloudy and warm, with a high of 75°F24°C and morning low of 59°F15°C. Breezy from the NW at 5 to 8 mph7 to 13 km/h. Wednesday Night: Partly cloudy, with a low around 58°F14°C. Light wind from the W around 3 mph5 km/h.
Partly Cloudy	High 73°F23°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 58%	Wind W 4 mph7 km/h	Thursday: Mostly cloudy and warm, with a high of 73°F23°C and morning low of 59°F15°C. Breezy from the W at 5 to 7 mph8 to 11 km/h. Thursday Night: Mostly cloudy, with a low around 59°F15°C. Light wind from the W around 4 mph6 km/h.
Partly Cloudy	High 70°F21°C	Low 60°F15°C	Precip 0 in0.1 mm1%	Cloud 46%	Wind WNW 6 mph9 km/h	Friday: Partly cloudy and warm, with a high of 70°F21°C and morning low of 62°F17°C. Breezy from the WNW at 7 to 9 mph12 to 15 km/h. Friday Night: Partly cloudy, with a low around 60°F15°C. Light wind from the W around 4 mph7 km/h.
Clear	High 70°F21°C	Low 56°F13°C	Precip 0 in0 mm—	Cloud 40%	Wind W 4 mph7 km/h	Saturday: Partly cloudy and warm, with a high of 70°F21°C and morning low of 57°F14°C. Breezy from the W at 5 to 7 mph8 to 11 km/h. Saturday Night: Partly cloudy, with a low around 56°F13°C. Light wind from the W around 4 mph6 km/h.
Clear	High 69°F20°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 33%	Wind W 6 mph9 km/h	Sunday: Partly cloudy and warm, with a high of 69°F20°C and morning low of 59°F15°C. Breezy from the W at 7 to 8 mph11 to 13 km/h. Sunday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the W around 5 mph8 km/h.
Clear	High 70°F21°C	Low 57°F14°C	Precip 0.01 in0.3 mm3%	Cloud 33%	Wind WNW 5 mph8 km/h	Monday: Partly cloudy and warm, with a high of 70°F21°C and morning low of 58°F15°C. Breezy from the WNW at 6 to 8 mph9 to 13 km/h. Monday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the W around 4 mph6 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 22	66°F19°C	58°F15°C	0.01 in0.2 mm· 2%	65%	Partly Cloudy	W 6 mph9 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 59°F15°C. Breezy from the W at 6 to 8 mph10 to 12 km/h. NightMostly cloudy, with a low around 58°F15°C. Light wind from the W around 5 mph8 km/h.
	WednesdaySep 23	75°F24°C	58°F14°C	0 in0 mm· —	37%	Clear	WNW 4 mph6 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 59°F15°C. Breezy from the NW at 5 to 8 mph7 to 13 km/h. NightPartly cloudy, with a low around 58°F14°C. Light wind from the W around 3 mph5 km/h.
	ThursdaySep 24	73°F23°C	59°F15°C	0 in0 mm· —	58%	Partly Cloudy	W 4 mph7 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 59°F15°C. Breezy from the W at 5 to 7 mph8 to 11 km/h. NightMostly cloudy, with a low around 59°F15°C. Light wind from the W around 4 mph6 km/h.
	FridaySep 25	70°F21°C	60°F15°C	0 in0.1 mm· 1%	46%	Partly Cloudy	WNW 6 mph9 km/h
DayPartly cloudy and warm, with a high of 70°F21°C and morning low of 62°F17°C. Breezy from the WNW at 7 to 9 mph12 to 15 km/h. NightPartly cloudy, with a low around 60°F15°C. Light wind from the W around 4 mph7 km/h.
	SaturdaySep 26	70°F21°C	56°F13°C	0 in0 mm· —	40%	Clear	W 4 mph7 km/h
DayPartly cloudy and warm, with a high of 70°F21°C and morning low of 57°F14°C. Breezy from the W at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 56°F13°C. Light wind from the W around 4 mph6 km/h.
	SundaySep 27	69°F20°C	57°F14°C	0 in0 mm· —	33%	Clear	W 6 mph9 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 8 mph11 to 13 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the W around 5 mph8 km/h.
	MondaySep 28	70°F21°C	57°F14°C	0.01 in0.3 mm· 3%	33%	Clear	WNW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 70°F21°C and morning low of 58°F15°C. Breezy from the WNW at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the W around 4 mph6 km/h.
	TuesdaySep 29	73°F23°C	57°F14°C	0 in0 mm· —	30%	Clear	WNW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 73°F23°C and morning low of 58°F15°C. Breezy from the WNW at 5 to 7 mph8 to 12 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the W around 4 mph6 km/h.
	WednesdaySep 30	72°F22°C	59°F15°C	0 in0 mm· —	40%	Clear	W 5 mph7 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 5 to 8 mph9 to 12 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the W around 4 mph6 km/h.
	ThursdayOct 1	72°F22°C	59°F15°C	0.01 in0.3 mm· 4%	42%	Partly Cloudy	WNW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 60°F15°C. Breezy from the WNW at 6 to 8 mph10 to 13 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the W around 4 mph7 km/h.
	FridayOct 2	73°F23°C	58°F14°C	0.03 in0.7 mm· 4%	26%	Clear	WNW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 73°F23°C and morning low of 59°F15°C. Breezy from the WNW at 6 to 8 mph9 to 12 km/h. NightPartly cloudy, with a low around 58°F14°C. Light wind from the W around 4 mph6 km/h.
	SaturdayOct 3	75°F24°C	59°F15°C	0.01 in0.2 mm· 2%	27%	Clear	W 4 mph7 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 60°F16°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.
	SundayOct 4	73°F23°C	59°F15°C	0.01 in0.2 mm· 4%	37%	Clear	W 5 mph7 km/h
DayPartly cloudy and warm, with a high of 73°F23°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.
	MondayOct 5	74°F23°C	60°F15°C	0.01 in0.2 mm· 3%	36%	Clear	W 5 mph8 km/h
DayPartly cloudy and warm, with a high of 74°F23°C and morning low of 62°F16°C. Breezy from the W at 6 to 7 mph9 to 12 km/h. NightPartly cloudy, with a low around 60°F15°C. Light wind from the W around 4 mph6 km/h.
	TuesdayOct 6	74°F24°C	60°F15°C	0.01 in0.2 mm· 2%	31%	Clear	W 4 mph7 km/h
DayPartly cloudy and warm, with a high of 74°F24°C and morning low of 61°F16°C. Breezy from the WNW at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 60°F15°C. Light wind from the W around 4 mph6 km/h.

Nearby Cities

San Carlos1 mi2 km Foster City3 mi4 km Redwood City3 mi5 km San Mateo4 mi6 km Burlingame7 mi11 km Menlo Park7 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: 37.5202°N, 122.2758°W·Elevation: 13m·Timezone: America/Los_Angeles·Population: 27,218