Live Weather & Forecast
Weather in Vacaville
California, United States · Real-time conditions & 3-day outlook
11°C
Feels like 10°C
52°F / Feels 50°F
Overcast
Vacaville, California
🌞 Daytime
Updated: 2026-04-12 10:45
Humidity
86%
Wind
9.7 km/h S
Wind Gust
14.1 km/h
Pressure
1012 mb
Visibility
16 km
UV Index
1.5
(Low)
Precipitation
0 mm
Cloud Cover
100%
Dew Point
8.2°C
Wind Degree
172°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
148.9 μg/m³
NO₂
2.6 μg/m³
O₃
89 μg/m³
SO₂
1.7 μg/m³
PM 2.5
4.1 μg/m³
PM 10
5.2 μg/m³
Today's Hourly Forecast
24-hour breakdown for Vacaville, California
12 AM
10°
Light drizzle
1 AM
9°
Clear
2 AM
9°
Moderate rain at times
3 AM
9°
Patchy rain nearby
4 AM
9°
Patchy rain nearby
5 AM
9°
Patchy rain nearby
6 AM
9°
Patchy light rain
7 AM
9°
Light rain
8 AM
10°
Patchy rain nearby
9 AM
11°
Sunny
10 AM
11°
Overcast
11 AM
12°
Patchy rain nearby
12 PM
12°
Light rain
1 PM
13°
Patchy rain nearby
2 PM
13°
Patchy rain nearby
3 PM
14°
Overcast
4 PM
14°
Overcast
5 PM
14°
Overcast
6 PM
13°
Cloudy
7 PM
12°
Partly Cloudy
8 PM
11°
Cloudy
9 PM
10°
Clear
10 PM
8°
Clear
11 PM
10°
Patchy rain nearby
3-Day Forecast
Daily overview for Vacaville, California
Today
Moderate rain
14°
/
7°
🌧️ 89% chance of rain
💧 Avg. humidity: 80%
💨 Max wind: 24.5 km/h
🌧️ Total precip: 8.53 mm
☀️ UV Index: 1
🌅 Sunrise: 06:36 AM
🌇 Sunset: 07:42 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Cloudy
17°
/
9°
🌧️ 0% chance of rain
💧 Avg. humidity: 74%
💨 Max wind: 7.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.1
🌅 Sunrise: 06:34 AM
🌇 Sunset: 07:43 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Sunny
17°
/
4°
🌧️ 0% chance of rain
💧 Avg. humidity: 80%
💨 Max wind: 9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:33 AM
🌇 Sunset: 07:44 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Vacaville
Plan your trip to Vacaville, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Vacaville?
Current conditions in Vacaville: Overcast, temperature 11°C, humidity 86%.
What is the best time to visit Vacaville?
The best time to visit Vacaville is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Vacaville?
Vacaville is located at approximately 38.4° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Vacaville?
The wettest period in Vacaville is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Vacaville?
For visits to Vacaville during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Vacaville in?
Vacaville is located in United States, in the state of California.
What are the public holidays in Vacaville in 2026?
View the 2026 public holidays for Vacaville on our Holidays page.
What are the GPS coordinates used for the weather forecast in Vacaville?
The weather forecast for Vacaville uses coordinates 38.3566, -121.9877.