West Sister Weather Forecast

    • 17
    • 32

    Chance Snow

    • 23
    • 26

    Increasing Clouds

    • 27
    • 32

    Partly Sunny

    • 32
    • 42

    Partly Sunny

    • 40
    • 48

    Rain Likely

    • 22
    • 50

    Slight Chance Rain

    • 33
    • 37

    Chance Rain

Today 14 Dec Coastal York

Snow. Additional snow accumulation of 1 to 3 Inches. Total snow accumulation 2 to 3 Inches. Highs in the lower 30s. North Winds around 10 Mph with Gusts up to 20 Mph. Chance of snow 90 percent.

Tonight 14 Dec Coastal York

Partly cloudy with a chance of snow this Evening, then mostly clear. Lows around 10 above. Northwest Winds around 10 Mph with Gusts up to 25 Mph. Chance of snow 40 percent. Wind chill Values as low as 2 below.

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  • Temperature Real-Time

West Sister Temperature Statistics

December Temperature

Pease Air Force Base / Portsmouth (6.8 miles)

  • Lowest 5 December, 2025

    6.8 °F

  • Average December

    26.9 °F

  • Highest 10 December, 2025

    41.4 °F

Climate (2020–Present)

Pease Air Force Base / Portsmouth (6.8 miles)

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  • Average Low 2020–2025

    42.6 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    59.3 °F
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