Current Conditions

Vallejo, California

71°F21°C

Hot

Wind

W 3 mph6 km/h

Humidity

53%

Cloud Cover

76%

As of Tuesday, September 8, 2026 at 11:10 PM PDT

Today's Outlook

Night

Mostly cloudy, with a low around 64°F18°C. Light wind from the W around 3 mph6 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Hot	High 96°F36°C	Low 64°F18°C	Precip 0 in0 mm—	Cloud 74%	Wind WNW 3 mph5 km/h	Wednesday: Mostly cloudy and hot, with a high of 96°F36°C and morning low of 68°F20°C. Light wind from the NW around 3 mph5 km/h. Heat risk in the afternoon. Wednesday Night: Mostly cloudy, with a low around 64°F18°C. Light wind from the W around 3 mph6 km/h.
Clear	High 93°F34°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 28%	Wind WSW 6 mph10 km/h	Thursday: Partly cloudy and hot, with a high of 93°F34°C and morning low of 69°F21°C. Breezy from the WSW at 7 to 10 mph11 to 17 km/h. Thursday Night: Mostly clear, with a low around 68°F20°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h.
Clear	High 80°F27°C	Low 61°F16°C	Precip 0 in0 mm—	Cloud 13%	Wind SW 8 mph13 km/h	Friday: Mostly clear and warm, with a high of 80°F27°C and morning low of 62°F17°C. Breezy from the WSW at 9 to 11 mph15 to 17 km/h. Friday Night: Mostly clear, with a low around 61°F16°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h.
Clear	High 78°F26°C	Low 58°F15°C	Precip 0 in0 mm—	Cloud 12%	Wind WSW 9 mph15 km/h	Saturday: Mostly clear and warm, with a high of 78°F26°C and morning low of 60°F16°C. Breezy from the WSW at 10 to 12 mph17 to 20 km/h. Saturday Night: Mostly clear, with a low around 58°F15°C. Breezy from the WSW at 8 to 10 mph12 to 16 km/h.
Clear	High 80°F27°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 8%	Wind W 6 mph9 km/h	Sunday: Mostly clear and warm, with a high of 80°F27°C and morning low of 61°F16°C. Breezy from the W at 6 to 8 mph10 to 12 km/h. Dry air. Sunday Night: Mostly clear, with a low around 57°F14°C. Light wind from the WSW around 6 mph9 km/h.
Clear	High 82°F28°C	Low 56°F13°C	Precip 0 in0 mm—	Cloud 13%	Wind WSW 5 mph8 km/h	Monday: Mostly clear and warm, with a high of 82°F28°C and morning low of 58°F15°C. Breezy from the WSW at 5 to 8 mph8 to 13 km/h. Dry air. Monday Night: Mostly clear, with a low around 56°F13°C. Light wind from the SW around 5 mph7 km/h.
Clear	High 77°F25°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 34%	Wind SW 6 mph10 km/h	Tuesday: Partly cloudy and warm, with a high of 77°F25°C and morning low of 59°F15°C. Breezy from the SW at 7 to 9 mph11 to 15 km/h. Tuesday Night: Partly cloudy, with a low around 57°F14°C. Breezy from the SW at 6 to 7 mph9 to 12 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	96°F36°C	64°F18°C	0 in0 mm· —	74%	Hot	WNW 3 mph5 km/h
DayMostly cloudy and hot, with a high of 96°F36°C and morning low of 68°F20°C. Light wind from the NW around 3 mph5 km/h. Heat risk in the afternoon. NightMostly cloudy, with a low around 64°F18°C. Light wind from the W around 3 mph6 km/h.
	ThursdaySep 10	93°F34°C	68°F20°C	0 in0 mm· —	28%	Clear	WSW 6 mph10 km/h
DayPartly cloudy and hot, with a high of 93°F34°C and morning low of 69°F21°C. Breezy from the WSW at 7 to 10 mph11 to 17 km/h. NightMostly clear, with a low around 68°F20°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h.
	FridaySep 11	80°F27°C	61°F16°C	0 in0 mm· —	13%	Clear	SW 8 mph13 km/h
DayMostly clear and warm, with a high of 80°F27°C and morning low of 62°F17°C. Breezy from the WSW at 9 to 11 mph15 to 17 km/h. NightMostly clear, with a low around 61°F16°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h.
	SaturdaySep 12	78°F26°C	58°F15°C	0 in0 mm· —	12%	Clear	WSW 9 mph15 km/h
DayMostly clear and warm, with a high of 78°F26°C and morning low of 60°F16°C. Breezy from the WSW at 10 to 12 mph17 to 20 km/h. NightMostly clear, with a low around 58°F15°C. Breezy from the WSW at 8 to 10 mph12 to 16 km/h.
	SundaySep 13	80°F27°C	57°F14°C	0 in0 mm· —	8%	Clear	W 6 mph9 km/h
DayMostly clear and warm, with a high of 80°F27°C and morning low of 61°F16°C. Breezy from the W at 6 to 8 mph10 to 12 km/h. Dry air. NightMostly clear, with a low around 57°F14°C. Light wind from the WSW around 6 mph9 km/h.
	MondaySep 14	82°F28°C	56°F13°C	0 in0 mm· —	13%	Clear	WSW 5 mph8 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 58°F15°C. Breezy from the WSW at 5 to 8 mph8 to 13 km/h. Dry air. NightMostly clear, with a low around 56°F13°C. Light wind from the SW around 5 mph7 km/h.
	TuesdaySep 15	77°F25°C	57°F14°C	0 in0 mm· —	34%	Clear	SW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 59°F15°C. Breezy from the SW at 7 to 9 mph11 to 15 km/h. NightPartly cloudy, with a low around 57°F14°C. Breezy from the SW at 6 to 7 mph9 to 12 km/h.
	WednesdaySep 16	76°F24°C	57°F14°C	0 in0 mm· —	33%	Clear	SW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 76°F24°C and morning low of 59°F15°C. Breezy from the SW at 6 to 8 mph10 to 13 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the SW around 6 mph9 km/h.
	ThursdaySep 17	77°F25°C	56°F14°C	0 in0 mm· —	24%	Clear	WSW 5 mph8 km/h
DayMostly clear and warm, with a high of 77°F25°C and morning low of 58°F14°C. Breezy from the WSW at 5 to 7 mph9 to 12 km/h. NightPartly cloudy, with a low around 56°F14°C. Light wind from the WSW around 5 mph8 km/h.
	FridaySep 18	78°F26°C	56°F13°C	0 in0 mm· —	26%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 78°F26°C and morning low of 58°F15°C. Breezy from the WSW at 5 to 8 mph9 to 12 km/h. NightPartly cloudy, with a low around 56°F13°C. Light wind from the WSW around 5 mph8 km/h.
	SaturdaySep 19	79°F26°C	57°F14°C	0 in0.1 mm· 3%	31%	Clear	WSW 5 mph9 km/h
DayPartly cloudy and warm, with a high of 79°F26°C and morning low of 58°F15°C. Breezy from the WSW at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the WSW around 5 mph8 km/h.
	SundaySep 20	79°F26°C	57°F14°C	0.01 in0.2 mm· 3%	33%	Clear	WSW 6 mph9 km/h
DayPartly cloudy and warm, with a high of 79°F26°C and morning low of 60°F16°C. Breezy from the WSW at 6 to 8 mph10 to 13 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the WSW around 5 mph8 km/h.
	MondaySep 21	80°F27°C	58°F15°C	0 in0.1 mm· 2%	32%	Clear	WSW 6 mph9 km/h
DayPartly cloudy and warm, with a high of 80°F27°C and morning low of 60°F15°C. Breezy from the WSW at 6 to 8 mph10 to 13 km/h. NightPartly cloudy, with a low around 58°F15°C. Light wind from the WSW around 5 mph9 km/h.
	TuesdaySep 22	81°F27°C	58°F15°C	0.01 in0.2 mm· 2%	31%	Clear	WSW 6 mph9 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 60°F16°C. Breezy from the WSW at 6 to 8 mph10 to 13 km/h. NightPartly cloudy, with a low around 58°F15°C. Light wind from the WSW around 5 mph8 km/h.
	WednesdaySep 23	81°F27°C	59°F15°C	0 in0.1 mm· 2%	33%	Clear	WSW 5 mph9 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 60°F16°C. Breezy from the WSW at 6 to 7 mph9 to 12 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the WSW around 5 mph8 km/h.

Nearby Cities

American Canyon5 mi8 km Hercules6 mi10 km Benicia7 mi11 km Pinole7 mi12 km Martinez9 mi14 km San Pablo11 mi18 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: 38.1041°N, 122.2566°W·Elevation: 21m·Timezone: America/Los_Angeles·Population: 121,692