Monticello Dam Weather Forecast

    • 58
    • 94

    Mostly Sunny

    • 54
    • 83

    Mostly Sunny

    • 54
    • 84

    Mostly Sunny

    • 53
    • 76

    Partly Sunny

    • 53
    • 75

    Mostly Sunny

    • 58
    • 81

    Sunny

Today 5 Jun North Bay Interior Mountains

Sunny. Highs in the upper 70s to lower 90s. Northwest Winds 5 to 10 Mph with Gusts to around 25 Mph.

Tonight 5 Jun North Bay Interior Mountains

Mostly clear. Lows in the upper 50s. West Winds 10 to 20 Mph with Gusts to around 35 Mph.

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  • Temperature Real-Time

Monticello Dam Temperature Statistics

June Temperature

Vacaville Nut Tree Airport (11.8 miles)

  • Lowest 1 June, 2026

    52.6 °F

  • Average June

    74.3 °F

  • Highest 1 June, 2026

    95.6 °F

Climate (2021–Present)

Vacaville Nut Tree Airport (11.8 miles)

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  • Average Low 2021–2026

    49.3 °F

  • Average 2021–2026

    62.9 °F

  • Average High 2021–2026

    76.9 °F
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