Vallejo Weather Conditions
Current Temperature Level
Vallejo Weather Conditions
Current Temperature Level
Last Updated: 2026-08-17 12:00 (Local Time)
Overcast
Fully overcast skies with a high of 18 °C. Humidity will be 80%, and winds at 22.3 km/h.26°C / 13°C
Sunrise
06:25 AM13hrs 35min
Sunset
08:00 PMAugustWeather Overview
No. of days:
Sunny
18
Cloudy
0
Rainy
9
Snowy
0
The monthly weather averages in Vallejo consist of 18 sunny days, 0 cloudy days, 9 rainy days, and 0 snowy days.
United States's Hottest Cities - August 2026
1.
Calexico, California
46 °C
Sunny
17%
10.4
5.8 kmph / W
2.
North Shore, California
46 °C
Sunny
17%
8.5
6.5 kmph / WNW
3.
Mecca, California
46 °C
Sunny
17%
8.5
6.5 kmph / WNW
4.
Indio, California
46 °C
Sunny
17%
8.4
6.5 kmph / WNW
5.
Brawley, California
46 °C
Sunny
16%
10.3
9.4 kmph / NW
6.
Calipatria, California
45 °C
Sunny
17%
10.3
9.4 kmph / NW
7.
El Centro, California
45 °C
Sunny
15%
8.5
6.8 kmph / WNW
8.
Guadalupe, Arizona
45 °C
Sunny
16%
10.5
4.3 kmph / S
9.
Phoenix, Arizona
45 °C
Sunny
16%
10.5
4.3 kmph / S
10.
Tempe, Arizona
45 °C
Sunny
15%
10.6
7.2 kmph / S
Last Updated: 17 Aug 2026, 07:15 PM
City Weather RankingsFAQs About Vallejo Weather Conditions
1. What is the current temperature in Vallejo today - 17 August 2026?
1. What is the current temperature in Vallejo today - 17 August 2026?
The current temperature in Vallejo is 20°C, with a feels-like temperature of 20°C. Today's forecast shows a high of 26°C and a low of 13°C, giving a 13 degree swing through the day as of 12:00 PM 17 August 2026.
2. What are the current weather parameters in Vallejo today?
2. What are the current weather parameters in Vallejo today?
Here is a complete overview of Vallejo's current weather conditions as of 12:00 PM 17 August 2026: Condition : Cloudy Temperature : 20°C Cool (Feels like 20°C) Humidity : 71% Wind Speed : 10.1 km/h from SW (222 degrees), Gust 3.8 m/s UV Index : 7.7 (Very High Air Pressure : 1017 mb Cloud Cover : 81% Visibility : 10 km Precipitation : 0 mm (19% chance of rain)
3. What is the 10-day weather forecast for Vallejo from 12:00 PM 17 August 2026?
3. What is the 10-day weather forecast for Vallejo from 12:00 PM 17 August 2026?
From 12:00 PM 17 August 2026, Vallejo's 10-day forecast shows this trend: Today (Aug. 17) : Temp. 18°C, Hum. 80% and Overcast condition. Tuesday (Aug. 18) : Temp. 18°C, Hum. 68% and Overcast condition. Wednesday (Aug. 19) : Temp. 20°C, Hum. 63% and Overcast condition. Thursday (Aug. 20) : Temp. 20°C, Hum. 62% and Overcast condition. Friday (Aug. 21) : Temp. 19°C, Hum. 67% and Sunny condition. Saturday (Aug. 22) : Temp. 19°C, Hum. 63% and Sunny condition. Sunday (Aug. 23) : Temp. 19°C, Hum. 64% and Sunny condition. Monday (Aug. 24) : Temp. 18°C, Hum. 67% and Sunny condition. Tuesday (Aug. 25) : Temp. 19°C, Hum. 65% and Sunny condition. Wednesday (Aug. 26) : Temp. 19°C, Hum. 62% and Sunny condition.
4. Will it rain in Vallejo today?
4. Will it rain in Vallejo today?
As of 12:00 PM 17 August 2026, there is a 15% chance of rainfall in Vallejo later today around 2026-08-17 12:00. Current precipitation is 0 mm. Residents are advised to carry an umbrella before heading out.
5. What is the monthly weather forecast for Vallejo in August 2026?
5. What is the monthly weather forecast for Vallejo in August 2026?
August 2026 in Vallejo is forecast to have 18 sunny days, 9 rainy days, 0 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 10°C to highs of 34°C.
6. How does the weather in Vallejo affect air quality?
6. How does the weather in Vallejo affect air quality?
Weather directly impacts air quality in Vallejo. 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.



