Vacaville Weather Conditions
Current Temperature Level
Vacaville Weather Conditions
Current Temperature Level
Feels Like 26°C
Chances of Rain9%
28°9%9 PM25°10%10 PM24°10%11 PM23°11%12 AM22°12%1 AM21°13%2 AM20°13%3 AM19°14%4 AM19°13%5 AM18°14%6 AM
16°13%7 AM
17°5%8 AM20°3%9 AM24°1%10 AM30°0%11 AM33°0%12 PM35°0%1 PM37°0%2 PM38°0%3 PM39°0%4 PM39°0%5 PM39°0%6 PM36°1%7 PM32°1%Skies may remain grey and overcast.
Last Updated: 2026-08-18 20:00 (Local Time)
243°WSW
Direction
11.5km/h
Wind Speed
Gust Speed
4.3m/s
Precipitation
Precipitation
0mm
Pressure
1011mb
UV Index
0Low
Today
25
°C
42%Wednesday
27
°C38%Thursday
28
°C30%Friday
27
°C29%Saturday
27
°C29%Sunday
28
°C25%Monday
27
°C31%Tuesday
27
°C28%Wednesday
23
°C48%Thursday
23
°C47%Overcast
Fully overcast skies with a high of 25 °C. Humidity will be 42%, and winds at 13.7 km/h.34°C / 17°C
Humi.42 %
Prec.0 mm
Sunrise
06:25 AM13hrs 33min
Sunset
07:58 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Clear
20 °C
47 %
0
10.4 kmph / WSW
Clear
Feels 18 °C
Cover 16 %
Visibility 10 km
1 AM
Clear
19 °C
47 %
0
7.9 kmph / W
ClearFeels 17 °C
Cover 23 %
Visibility 10 km
2 AM
Overcast
19 °C
49 %
0
8.3 kmph / W
OvercastFeels 17 °C
Cover 100 %
Visibility 10 km
3 AM
Overcast
18 °C
52 %
0
7.9 kmph / W
OvercastFeels 16 °C
Cover 100 %
Visibility 10 km
4 AM
Overcast
17 °C
63 %
0
7.6 kmph / W
OvercastFeels 16 °C
Cover 100 %
Visibility 10 km
5 AM
Overcast
17 °C
62 %
0
7.9 kmph / W
OvercastFeels 15 °C
Cover 100 %
Visibility 10 km
6 AM
Overcast
17 °C
59 %
0
7.6 kmph / W
OvercastFeels 15 °C
Cover 100 %
Visibility 10 km
7 AM
Overcast
17 °C
60 %
0.1
6.5 kmph / W
OvercastFeels 15 °C
Cover 100 %
Visibility 10 km
8 AM
Overcast
20 °C
56 %
0.7
5.8 kmph / WSW
OvercastFeels 19 °C
Cover 100 %
Visibility 10 km
9 AM
Partly Cloudy
23 °C
48 %
2.1
3.2 kmph / W
Partly CloudyFeels 22 °C
Cover 33 %
Visibility 10 km
10 AM
Partly Cloudy
25 °C
42 %
3.9
1.4 kmph / SSW
Partly CloudyFeels 26 °C
Cover 29 %
Visibility 10 km
11 AM
Overcast
28 °C
37 %
6.3
1.1 kmph / S
OvercastFeels 28 °C
Cover 100 %
Visibility 10 km
12 PM
Overcast
30 °C
33 %
8.5
2.9 kmph / ESE
OvercastFeels 30 °C
Cover 100 %
Visibility 10 km
1 PM
Overcast
32 °C
30 %
9.3
5.4 kmph / SE
OvercastFeels 32 °C
Cover 100 %
Visibility 10 km
2 PM
Overcast
33 °C
28 %
8.4
4.7 kmph / SE
OvercastFeels 33 °C
Cover 100 %
Visibility 10 km
3 PM
Overcast
34 °C
24 %
6.9
9 kmph / SE
OvercastFeels 32 °C
Cover 100 %
Visibility 10 km
4 PM
Overcast
33 °C
30 %
4.7
12.6 kmph / SE
OvercastFeels 32 °C
Cover 100 %
Visibility 10 km
5 PM
Cloudy
34 °C
26 %
2.5
13.7 kmph / SSE
CloudyFeels 32 °C
Cover 85 %
Visibility 10 km
6 PM
Sunny
34 °C
23 %
1
11.9 kmph / S
SunnyFeels 32 °C
Cover 16 %
Visibility 10 km
7 PM
Overcast
32 °C
30 %
0.2
9.4 kmph / SSW
OvercastFeels 31 °C
Cover 100 %
Visibility 10 km
8 PM
Overcast
28 °C
34 %
0
11.5 kmph / WSW
OvercastFeels 26 °C
Cover 99 %
Visibility 10 km
9 PM
Overcast
25 °C
40 %
0
12.2 kmph / W
OvercastFeels 23 °C
Cover 100 %
Visibility 10 km
10 PM
Overcast
24 °C
43 %
0
10.8 kmph / WSW
OvercastFeels 22 °C
Cover 100 %
Visibility 10 km
11 PM
Overcast
23 °C
48 %
0
10.1 kmph / WSW
OvercastFeels 21 °C
Cover 100 %
Visibility 10 km
40°17°41°20°42°20°39°20°37°20°38°19°41°18°38°19°41°17°35°17°34°18°33°18°27°16°28°14°31°14°34°13°36°19°35°17°39°18°39°18°38°20°39°18°39°20°38°18°38°18°33°15°34°15°
34°16°33°15°33°15°33°15°AugustWeather Overview
No. of days:
Sunny
26
Cloudy
0
Rainy
1
Snowy
0
The monthly weather averages in Vacaville consist of 26 sunny days, 0 cloudy days, 1 rainy days, and 0 snowy days.
Vacaville's Locations Weather Conditions
United States's Hottest Cities - August 2026
1.
Park Village, California
42 °C
Overcast
10%
0
9.4 kmph / SE
2.
Yuma, Arizona
42 °C
Blowing dust
22%
0
20.5 kmph / SSW
3.
Tolleson, Arizona
41 °C
Clear
15%
0
26.3 kmph / E
4.
Guadalupe, Arizona
41 °C
Clear
15%
0
26.3 kmph / E
5.
Surprise, Arizona
41 °C
Clear
16%
0
32 kmph / E
6.
Sun City, Arizona
41 °C
Clear
16%
0
32 kmph / E
7.
Buckeye, Arizona
41 °C
Clear
14%
0
8.6 kmph / ESE
8.
Chandler, Arizona
41 °C
Clear
14%
0
36 kmph / ENE
9.
Phoenix, Arizona
41 °C
Clear
14%
0
32 kmph / E
10.
Calexico, California
41 °C
Clear
17%
0
20.2 kmph / SSE
Last Updated: 19 Aug 2026, 03:33 AM
City Weather RankingsFAQs About Vacaville Weather Conditions
1. What is the current temperature in Vacaville today - 18 August 2026?
1. What is the current temperature in Vacaville today - 18 August 2026?
The current temperature in Vacaville is 28°C, with a feels-like temperature of 26°C. Today's forecast shows a high of 34°C and a low of 17°C, giving a 17 degree swing through the day as of 08:00 PM 18 August 2026.
2. What are the current weather parameters in Vacaville today?
2. What are the current weather parameters in Vacaville today?
Here is a complete overview of Vacaville's current weather conditions as of 08:00 PM 18 August 2026: Condition : Overcast Temperature : 28°C Pleasant (Feels like 26°C) Humidity : 34% Wind Speed : 11.5 km/h from WSW (243 degrees), Gust 4.3 m/s UV Index : 0 (Low Air Pressure : 1011 mb Cloud Cover : 99% Visibility : 10 km Precipitation : 0 mm (8% chance of rain)
3. What is the 10-day weather forecast for Vacaville from 08:00 PM 18 August 2026?
3. What is the 10-day weather forecast for Vacaville from 08:00 PM 18 August 2026?
From 08:00 PM 18 August 2026, Vacaville's 10-day forecast shows this trend: Today (Aug. 18) : Temp. 25°C, Hum. 42% and Overcast condition. Wednesday (Aug. 19) : Temp. 27°C, Hum. 38% and Sunny condition. Thursday (Aug. 20) : Temp. 28°C, Hum. 30% and Overcast condition. Friday (Aug. 21) : Temp. 27°C, Hum. 29% and Sunny condition. Saturday (Aug. 22) : Temp. 27°C, Hum. 29% and Sunny condition. Sunday (Aug. 23) : Temp. 28°C, Hum. 25% and Sunny condition. Monday (Aug. 24) : Temp. 27°C, Hum. 31% and Sunny condition. Tuesday (Aug. 25) : Temp. 27°C, Hum. 28% and Sunny condition. Wednesday (Aug. 26) : Temp. 23°C, Hum. 48% and Sunny condition. Thursday (Aug. 27) : Temp. 23°C, Hum. 47% and Sunny condition.
4. Will it rain in Vacaville today?
4. Will it rain in Vacaville today?
As of 08:00 PM 18 August 2026, there is a 9% chance of rainfall in Vacaville later today around 2026-08-18 20:00. Current precipitation is 0 mm. Residents are advised to carry an umbrella before heading out.
5. What is the monthly weather forecast for Vacaville in August 2026?
5. What is the monthly weather forecast for Vacaville in August 2026?
August 2026 in Vacaville is forecast to have 26 sunny days, 1 rainy days, 0 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 13°C to highs of 42°C.
6. How does the weather in Vacaville affect air quality?
6. How does the weather in Vacaville affect air quality?
Weather directly impacts air quality in Vacaville. Calm winds, high humidity, fog, and high pressure trap pollutants near the ground, worsening AQI. Strong winds, rainfall, and low pressure help disperse them. Rising temperatures and UV levels intensify ozone and smog formation, while poor visibility signals elevated particulate matter. Monitoring weather alongside AQI gives the clearest picture of outdoor safety.
