East Sister Weather Forecast

    • 26
    • 32

    Increasing Clouds

    • 14
    • 32

    Breezy

    • 19
    • 27

    Mostly Sunny

    • 16
    • 26

    Partly Sunny

    • 16
    • 26

    Partly Sunny

    • 23
    • 29

    Chance Snow

Today 31 Dec Coastal York

Partly sunny. Highs around 30. Southwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 31 Dec Coastal York

Mostly cloudy. Snow likely after midnight. Snow accumulation around an inch. Lows around 20. Light and variable Winds. Chance of snow 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

East Sister Temperature Statistics

December Temperature

Pease Air Force Base / Portsmouth (7.5 miles)

  • Lowest 5 December, 2025

    6.8 °F

  • Average December

    27.9 °F

  • Highest 19 December, 2025

    55.4 °F

Climate (2020–Present)

Pease Air Force Base / Portsmouth (7.5 miles)

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  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    59.3 °F
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