Casco Weather Forecast

    • 23
    • 32

    Increasing Clouds

    • 13
    • 38

    Partly Sunny

    • 11
    • 25

    Partly Sunny

    • 18
    • 30

    Snow Likely

    • 14
    • 30

    Mostly Cloudy

    • 24
    • 33

    Chance Snow

Today 20 Dec Central Interior Cumberland

Partly sunny. Highs in the mid 30s. West Winds 10 to 15 Mph with Gusts up to 35 Mph, becoming southwest this afternoon.

Tonight 20 Dec Central Interior Cumberland

Cloudy. A slight chance of snow after midnight. Lows in the mid 20s. South Winds around 10 Mph with Gusts up to 20 Mph. Chance of snow 20 percent.

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Casco Temperature Statistics

December Temperature

Auburn-Lewiston (11.8 miles)

  • Lowest 9 December, 2025

    -13 °F

  • Average December

    21.3 °F

  • Highest 18 December, 2025

    43 °F

Climate (2020–Present)

Auburn-Lewiston (11.8 miles)

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  • Average Low 2020–2025

    37.8 °F

  • Average 2020–2025

    47.6 °F

  • Average High 2020–2025

    57 °F
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