Current Conditions

Napa, California

80°F27°C

Hot

Wind

WSW 4 mph7 km/h

Humidity

34%

Cloud Cover

63%

As of Tuesday, September 8, 2026 at 8:36 PM PDT

Today's Outlook

Night

Mostly cloudy, with a low around 64°F18°C. Light wind from the WNW around 4 mph6 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Hot	High 97°F36°C	Low 64°F18°C	Precip 0 in0 mm—	Cloud 75%	Wind WNW 3 mph5 km/h	Wednesday: Overcast and hot, with a high of 97°F36°C and morning low of 68°F20°C. Light wind from the NNW 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 WNW around 4 mph6 km/h.
Hot	High 96°F35°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 29%	Wind WSW 5 mph8 km/h	Thursday: Partly cloudy and hot, with a high of 96°F35°C and morning low of 70°F21°C. Breezy from the WSW at 6 to 10 mph10 to 16 km/h. Heat risk in the afternoon. Thursday Night: Partly cloudy, with a low around 68°F20°C. Light wind from the WSW around 4 mph7 km/h.
Clear	High 83°F29°C	Low 61°F16°C	Precip 0 in0 mm—	Cloud 8%	Wind SW 7 mph11 km/h	Friday: Mostly clear and warm, with a high of 83°F29°C and morning low of 63°F17°C. Breezy from the SW at 8 to 10 mph12 to 16 km/h. Friday Night: Mostly clear, with a low around 61°F16°C. Light wind from the SW around 6 mph9 km/h.
Clear	High 80°F27°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 8%	Wind WSW 8 mph13 km/h	Saturday: Mostly clear and warm, with a high of 80°F27°C and morning low of 60°F16°C. Breezy from the WSW at 9 to 11 mph15 to 18 km/h. Dry air. Saturday Night: Mostly clear, with a low around 59°F15°C. Breezy from the WSW at 7 to 9 mph11 to 14 km/h.
Clear	High 83°F28°C	Low 56°F14°C	Precip 0 in0 mm—	Cloud 6%	Wind W 5 mph7 km/h	Sunday: Mostly clear and warm, with a high of 83°F28°C and morning low of 61°F16°C. Light wind from the WNW around 5 mph7 km/h. Dry air. Sunday Night: Mostly clear, with a low around 56°F14°C. Light wind from the W around 5 mph8 km/h.
Clear	High 84°F29°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 7%	Wind WSW 4 mph6 km/h	Monday: Mostly clear and warm, with a high of 84°F29°C and morning low of 59°F15°C. Light wind from the WSW around 4 mph6 km/h. Dry air. Monday Night: Mostly clear, with a low around 57°F14°C. Light wind from the WSW around 4 mph6 km/h.
Clear	High 79°F26°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 22%	Wind SW 5 mph8 km/h	Tuesday: Mostly clear and warm, with a high of 79°F26°C and morning low of 60°F16°C. Breezy from the SW at 5 to 8 mph9 to 12 km/h. Tuesday Night: Mostly clear, with a low around 57°F14°C. Light wind from the SW around 4 mph7 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	97°F36°C	64°F18°C	0 in0 mm· —	75%	Hot	WNW 3 mph5 km/h
DayOvercast and hot, with a high of 97°F36°C and morning low of 68°F20°C. Light wind from the NNW around 3 mph5 km/h. Heat risk in the afternoon. NightMostly cloudy, with a low around 64°F18°C. Light wind from the WNW around 4 mph6 km/h.
	ThursdaySep 10	96°F35°C	68°F20°C	0 in0 mm· —	29%	Hot	WSW 5 mph8 km/h
DayPartly cloudy and hot, with a high of 96°F35°C and morning low of 70°F21°C. Breezy from the WSW at 6 to 10 mph10 to 16 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 68°F20°C. Light wind from the WSW around 4 mph7 km/h.
	FridaySep 11	83°F29°C	61°F16°C	0 in0 mm· —	8%	Clear	SW 7 mph11 km/h
DayMostly clear and warm, with a high of 83°F29°C and morning low of 63°F17°C. Breezy from the SW at 8 to 10 mph12 to 16 km/h. NightMostly clear, with a low around 61°F16°C. Light wind from the SW around 6 mph9 km/h.
	SaturdaySep 12	80°F27°C	59°F15°C	0 in0 mm· —	8%	Clear	WSW 8 mph13 km/h
DayMostly clear and warm, with a high of 80°F27°C and morning low of 60°F16°C. Breezy from the WSW at 9 to 11 mph15 to 18 km/h. Dry air. NightMostly clear, with a low around 59°F15°C. Breezy from the WSW at 7 to 9 mph11 to 14 km/h.
	SundaySep 13	83°F28°C	56°F14°C	0 in0 mm· —	6%	Clear	W 5 mph7 km/h
DayMostly clear and warm, with a high of 83°F28°C and morning low of 61°F16°C. Light wind from the WNW around 5 mph7 km/h. Dry air. NightMostly clear, with a low around 56°F14°C. Light wind from the W around 5 mph8 km/h.
	MondaySep 14	84°F29°C	57°F14°C	0 in0 mm· —	7%	Clear	WSW 4 mph6 km/h
DayMostly clear and warm, with a high of 84°F29°C and morning low of 59°F15°C. Light wind from the WSW around 4 mph6 km/h. Dry air. NightMostly clear, with a low around 57°F14°C. Light wind from the WSW around 4 mph6 km/h.
	TuesdaySep 15	79°F26°C	57°F14°C	0 in0 mm· —	22%	Clear	SW 5 mph8 km/h
DayMostly clear and warm, with a high of 79°F26°C and morning low of 60°F16°C. Breezy from the SW at 5 to 8 mph9 to 12 km/h. NightMostly clear, with a low around 57°F14°C. Light wind from the SW around 4 mph7 km/h.
	WednesdaySep 16	78°F26°C	57°F14°C	0 in0 mm· —	26%	Clear	SW 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 SW at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the SW around 5 mph7 km/h.
	ThursdaySep 17	80°F26°C	56°F13°C	0 in0 mm· —	20%	Clear	WSW 5 mph7 km/h
DayMostly clear and warm, with a high of 80°F26°C and morning low of 58°F15°C. Breezy from the WSW at 5 to 7 mph8 to 11 km/h. NightMostly clear, with a low around 56°F13°C. Light wind from the WSW around 4 mph7 km/h.
	FridaySep 18	80°F27°C	56°F14°C	0 in0 mm· —	26%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 80°F27°C and morning low of 58°F15°C. Breezy from the WSW at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 56°F14°C. Light wind from the WSW around 4 mph7 km/h.
	SaturdaySep 19	80°F27°C	57°F14°C	0.01 in0.2 mm· 2%	26%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 80°F27°C and morning low of 59°F15°C. Breezy from the WSW at 5 to 7 mph8 to 12 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the WSW around 5 mph7 km/h.
	SundaySep 20	81°F27°C	57°F14°C	0 in0.1 mm· 2%	25%	Clear	WSW 5 mph7 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 59°F15°C. Breezy from the WSW at 5 to 7 mph8 to 11 km/h. NightMostly clear, with a low around 57°F14°C. Light wind from the WSW around 4 mph7 km/h.
	MondaySep 21	82°F28°C	59°F15°C	0 in0 mm· —	22%	Clear	WSW 5 mph7 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 60°F16°C. Breezy from the WSW at 5 to 7 mph8 to 11 km/h. NightMostly clear, with a low around 59°F15°C. Light wind from the WSW around 4 mph7 km/h.
	TuesdaySep 22	83°F28°C	59°F15°C	0.01 in0.2 mm· 2%	24%	Clear	WSW 5 mph7 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 62°F17°C. Breezy from the WSW at 5 to 7 mph8 to 11 km/h. NightMostly clear, with a low around 59°F15°C. Light wind from the WSW around 4 mph7 km/h.
	WednesdaySep 23	83°F28°C	59°F15°C	0 in0.1 mm· 2%	27%	Clear	WSW 5 mph7 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 61°F16°C. Light wind from the WSW around 5 mph8 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the WSW around 4 mph6 km/h.

Nearby Cities

American Canyon9 mi14 km Agua Caliente11 mi18 km Vallejo13 mi22 km Fairfield14 mi22 km Suisun14 mi22 km Vacaville17 mi27 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: 38.2971°N, 122.2855°W·Elevation: 6m·Timezone: America/Los_Angeles·Population: 80,434