Current Conditions

Napa, California

55°F13°C
Clear

Wind

SW 2 mph3 km/h

Humidity

94%

Cloud Cover

73%

As of Wednesday, September 23, 2026 at 3:35 AM PDT

Today's Outlook

Day

Mostly clear and hot, with a high of 88°F31°C and morning low of 57°F14°C. Light wind from the SW around 2 mph3 km/h.

Night

Partly cloudy, with a low around 55°F13°C. Light wind from the WSW around 3 mph5 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ClearHigh 88°F31°CLow 55°F13°CPrecip 0 in0 mmCloud 24%Wind WSW 2 mph4 km/hWednesday: Mostly clear and hot, with a high of 88°F31°C and morning low of 57°F14°C. Light wind from the SW around 2 mph3 km/h. Wednesday Night: Partly cloudy, with a low around 55°F13°C. Light wind from the WSW around 3 mph5 km/h.
Partly CloudyHigh 86°F30°CLow 58°F14°CPrecip 0 in0 mmCloud 62%Wind WSW 4 mph7 km/hThursday: Mostly cloudy and hot, with a high of 86°F30°C and morning low of 58°F15°C. Breezy from the SW at 5 to 8 mph7 to 13 km/h. Thursday Night: Mostly cloudy, with a low around 58°F14°C. Light wind from the WSW around 4 mph6 km/h.
ClearHigh 82°F28°CLow 60°F15°CPrecip 0 in0 mmCloud 29%Wind WSW 6 mph10 km/hFriday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 62°F17°C. Breezy from the WSW at 7 to 9 mph12 to 14 km/h. Friday Night: Partly cloudy, with a low around 60°F15°C. Light wind from the WSW around 5 mph7 km/h.
ClearHigh 78°F25°CLow 53°F12°CPrecip 0 in0 mmCloud 36%Wind SW 4 mph6 km/hSaturday: Partly cloudy and warm, with a high of 78°F25°C and morning low of 55°F13°C. Light wind from the SW around 4 mph7 km/h. Dry air. Saturday Night: Partly cloudy, with a low around 53°F12°C. Light wind from the SW around 3 mph5 km/h.
ClearHigh 74°F23°CLow 54°F12°CPrecip 0 in0 mmCloud 38%Wind SW 5 mph8 km/hSunday: Partly cloudy and warm, with a high of 74°F23°C and morning low of 56°F13°C. Breezy from the SW at 6 to 7 mph9 to 12 km/h. Sunday Night: Partly cloudy, with a low around 54°F12°C. Light wind from the SW around 4 mph7 km/h.
ClearHigh 80°F27°CLow 54°F12°CPrecip 0 in0 mmCloud 16%Wind WSW 3 mph6 km/hMonday: Mostly clear and warm, with a high of 80°F27°C and morning low of 55°F13°C. Light wind from the WSW around 4 mph6 km/h. Dry air. Monday Night: Mostly clear, with a low around 54°F12°C. Light wind from the WSW around 3 mph5 km/h.
ClearHigh 84°F29°CLow 55°F13°CPrecip 0 in0 mmCloud 9%Wind WSW 3 mph5 km/hTuesday: Mostly clear and warm, with a high of 84°F29°C and morning low of 57°F14°C. Light wind from the WSW around 3 mph6 km/h. Dry air. Tuesday Night: Mostly clear, with a low around 55°F13°C. Light wind from the WSW around 3 mph5 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 2388°F31°C55°F13°C0 in0 mm· —24%ClearWSW 2 mph4 km/h
ThursdaySep 2486°F30°C58°F14°C0 in0 mm· —62%Partly CloudyWSW 4 mph7 km/h
FridaySep 2582°F28°C60°F15°C0 in0 mm· —29%ClearWSW 6 mph10 km/h
SaturdaySep 2678°F25°C53°F12°C0 in0 mm· —36%ClearSW 4 mph6 km/h
SundaySep 2774°F23°C54°F12°C0 in0 mm· —38%ClearSW 5 mph8 km/h
MondaySep 2880°F27°C54°F12°C0 in0 mm· —16%ClearWSW 3 mph6 km/h
TuesdaySep 2984°F29°C55°F13°C0 in0 mm· —9%ClearWSW 3 mph5 km/h
WednesdaySep 3085°F29°C56°F13°C0 in0 mm· —23%ClearWSW 3 mph5 km/h
ThursdayOct 184°F29°C57°F14°C0 in0.1 mm· 2%38%ClearWSW 4 mph6 km/h
FridayOct 285°F29°C57°F14°C0 in0.1 mm· 2%20%ClearW 4 mph6 km/h
SaturdayOct 385°F30°C58°F14°C0 in0.1 mm· 2%15%ClearWNW 4 mph7 km/h
SundayOct 484°F29°C58°F14°C0 in0.1 mm· 2%18%ClearW 4 mph7 km/h
MondayOct 584°F29°C58°F14°C0.01 in0.2 mm· 3%17%ClearWSW 4 mph6 km/h
TuesdayOct 685°F29°C58°F15°C0 in0 mm· —16%ClearWSW 4 mph6 km/h
WednesdayOct 784°F29°C59°F15°C0.02 in0.5 mm· 5%18%ClearWSW 4 mph6 km/h

Nearby Cities

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