West Sister Weather Forecast

    • 26
    • 38

    Mostly Cloudy

    • 20
    • 35

    Mostly Sunny

    • 25
    • 35

    Mostly Sunny

    • 22
    • 37

    Partly Sunny

    • 29
    • 36

    Mostly Cloudy

    • 30
    • 39

    Slight Chance Snow

Today 11 Feb Coastal York

Partly sunny. Highs in the upper 30s. Northwest Winds around 10 Mph.

Tonight 11 Feb Coastal York

Partly cloudy in the Evening, then mostly cloudy with a slight chance of snow Showers after midnight. Lows around 19. Light and variable Winds. Chance of snow 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

West Sister Temperature Statistics

February Temperature

Pease Air Force Base / Portsmouth (6.8 miles)

  • Lowest 8 February, 2026

    2.8 °F

  • Average February

    19.1 °F

  • Highest 3 February, 2026

    33.8 °F

Climate (2021–Present)

Pease Air Force Base / Portsmouth (6.8 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    59.2 °F
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