Middletown Weather Forecast

    • 49
    • 83

    Mostly Sunny

    • 47
    • 76

    Mostly Sunny

    • 51
    • 80

    Sunny

    • 55
    • 88

    Sunny

    • 56
    • 90

    Sunny

    • 57
    • 92

    Sunny

Today 18 Jun Eastern Lake

Sunny. Highs 82 to 93. East wind around 5 Mph shifting to the south in the afternoon.

Tonight 18 Jun Eastern Lake

Partly cloudy. Lows 50 to 60. Southwest wind around 10 Mph.

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Middletown Temperature Statistics

June Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (20.5 miles)

  • Lowest 7 June, 2026

    43.6 °F

  • Average June

    68 °F

  • Highest 11 June, 2026

    101.6 °F

Climate (2021–2026)

Santa Rosa, Santa Rosa Sonoma County Airport (20.5 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    72.8 °F
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