Vallejo Weather Forecast
- 53
- 62
Decreasing Clouds
- 54
- 66
Mostly Sunny
- 56
- 65
Partly Sunny
- 56
- 68
Mostly Sunny
- 56
- 65
Mostly Cloudy
- 58
- 62
Mostly Cloudy
Today 30 Oct Carquinez Strait and Delta
Mostly sunny. Highs 72 to 78. West Winds up to 10 Mph.
Tonight 30 Oct Carquinez Strait and Delta
Mostly clear. Lows around 51. West Winds up to 10 Mph.
Vallejo Temperature Statistics
October Temperature
Napa, Napa County Airport (6.8 miles)
Lowest 12 October, 2025
42.1 °FAverage October
59.9 °FHighest 7 October, 2025
88 °F
Climate (2020–Present)
Napa, Napa County Airport (6.8 miles)
Average Low 2020–2025
46.9 °FAverage 2020–2025
58 °FAverage High 2020–2025
70.3 °F