Current Conditions

Vacaville, California

66°F19°C
Drizzle

Wind

WSW 9 mph15 km/h

Humidity

59%

Cloud Cover

21%

As of Tuesday, September 1, 2026 at 7:04 PM PDT

Today's Outlook

Night

Mostly cloudy, with a low around 59°F15°C. Breezy from the SW at 5 to 7 mph8 to 12 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 75°F24°CLow 59°F15°CPrecip 0.02 in0.5 mm46%Cloud 71%Wind SW 6 mph10 km/hWednesday: Mostly cloudy and warm, with a high of 75°F24°C and morning low of 63°F17°C. Breezy from the SW at 8 to 9 mph12 to 15 km/h. 46% chance of drizzle around midday. Wednesday Night: Mostly cloudy, with a low around 59°F15°C. Breezy from the SW at 5 to 7 mph8 to 12 km/h.
DrizzleHigh 72°F22°CLow 59°F15°CPrecip 0.02 in0.5 mm21%Cloud 69%Wind SW 7 mph12 km/hThursday: Overcast and warm, with a high of 72°F22°C and morning low of 62°F17°C. Breezy from the SW at 9 to 10 mph14 to 17 km/h. 21% chance of drizzle in the afternoon. Thursday Night: Mostly cloudy, with a low around 59°F15°C. Breezy from the SW at 6 to 8 mph9 to 12 km/h.
ClearHigh 76°F25°CLow 58°F14°CPrecip 0 in0 mmCloud 15%Wind SW 6 mph10 km/hFriday: Mostly clear and warm, with a high of 76°F25°C and morning low of 60°F16°C. Breezy from the SW at 6 to 8 mph10 to 13 km/h. Dry air. Friday Night: Mostly clear, with a low around 58°F14°C. Breezy from the SW at 6 to 7 mph9 to 12 km/h.
ClearHigh 79°F26°CLow 54°F12°CPrecip 0 in0 mmCloud 18%Wind SW 5 mph7 km/hSaturday: Mostly clear and warm, with a high of 79°F26°C and morning low of 58°F14°C. Breezy from the SW at 4 to 7 mph7 to 11 km/h. Dry air. Saturday Night: Mostly clear, with a low around 54°F12°C. Breezy from the WSW at 5 to 7 mph8 to 11 km/h.
ClearHigh 80°F27°CLow 57°F14°CPrecip 0 in0 mmCloud 11%Wind SW 6 mph10 km/hSunday: Mostly clear and warm, with a high of 80°F27°C and morning low of 60°F16°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h. Sunday Night: Mostly clear, with a low around 57°F14°C. Breezy from the SW at 5 to 7 mph9 to 12 km/h.
ClearHigh 85°F29°CLow 56°F14°CPrecip 0 in0 mmCloud 12%Wind WNW 4 mph6 km/hMonday: Mostly clear and warm, with a high of 85°F29°C and morning low of 60°F16°C. Light wind from the NNW around 3 mph5 km/h. Dry air. Monday Night: Mostly clear, with a low around 56°F14°C. Light wind from the WSW around 4 mph6 km/h.
ClearHigh 87°F31°CLow 59°F15°CPrecip 0 in0 mmCloud 23%Wind WSW 4 mph7 km/hTuesday: Mostly clear and hot, with a high of 87°F31°C and morning low of 65°F18°C. Light wind from the WSW around 4 mph7 km/h. Dry air. Tuesday Night: Mostly clear, with a low around 59°F15°C. Light wind from the WSW around 4 mph7 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 275°F24°C59°F15°C0.02 in0.5 mm· 46%71%DrizzleSW 6 mph10 km/h
ThursdaySep 372°F22°C59°F15°C0.02 in0.5 mm· 21%69%DrizzleSW 7 mph12 km/h
FridaySep 476°F25°C58°F14°C0 in0 mm· —15%ClearSW 6 mph10 km/h
SaturdaySep 579°F26°C54°F12°C0 in0 mm· —18%ClearSW 5 mph7 km/h
SundaySep 680°F27°C57°F14°C0 in0 mm· —11%ClearSW 6 mph10 km/h
MondaySep 785°F29°C56°F14°C0 in0 mm· —12%ClearWNW 4 mph6 km/h
TuesdaySep 887°F31°C59°F15°C0 in0 mm· —23%ClearWSW 4 mph7 km/h
WednesdaySep 985°F29°C61°F16°C0.02 in0.5 mm· 4%25%ClearWSW 5 mph8 km/h
ThursdaySep 1084°F29°C62°F17°C0.02 in0.4 mm· 5%25%ClearWSW 5 mph9 km/h
FridaySep 1181°F27°C61°F16°C0.02 in0.4 mm· 6%30%ClearSW 6 mph9 km/h
SaturdaySep 1282°F28°C60°F16°C0.02 in0.5 mm· 7%28%ClearSW 5 mph9 km/h
SundaySep 1383°F29°C60°F15°C0 in0 mm· —22%ClearSW 5 mph8 km/h
MondaySep 1485°F30°C60°F16°C0.01 in0.2 mm· 2%24%ClearWSW 5 mph8 km/h
TuesdaySep 1586°F30°C61°F16°C0.02 in0.4 mm· 4%20%ClearWSW 5 mph8 km/h
WednesdaySep 1685°F30°C61°F16°C0 in0.1 mm· 2%21%ClearWSW 5 mph8 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: 38.3566°N, 121.9877°W·Elevation: 53m·Timezone: America/Los_Angeles·Population: 96,803