Vallejo Weather Forecast

    • 53
    • 71

    Mostly Sunny

    • 53
    • 71

    Mostly Sunny

    • 53
    • 73

    Mostly Sunny

    • 52
    • 71

    Mostly Sunny

    • 53
    • 71

    Partly Sunny

    • 52
    • 72

    Partly Sunny

Today 22 Mar Carquinez Strait and Delta

Mostly sunny. Highs 79 to 85. West Winds up to 10 Mph.

Tonight 22 Mar Carquinez Strait and Delta

Mostly clear. Lows around 52. Southwest Winds up to 10 Mph.

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Vallejo Temperature Statistics

March Temperature

Napa, Napa County Airport (6.8 miles)

  • Lowest 5 March, 2026

    37.7 °F

  • Average March

    60.4 °F

  • Highest 20 March, 2026

    87.1 °F

Climate (2021–Present)

Napa, Napa County Airport (6.8 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    70.2 °F
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