West Sister Weather Forecast

    • 37
    • 50

    Mostly Sunny

    • 48
    • 56

    Sunny

    • 50
    • 63

    Partly Sunny

    • 51
    • 59

    Mostly Cloudy

    • 53
    • 59

    Mostly Cloudy

    • 55
    • 60

    Rain Showers Likely

Today 31 Oct Coastal York

Mostly sunny. Highs in the lower 50s. Northwest Winds around 10 Mph.

Tonight 31 Oct Coastal York

Mostly clear. Lows in the upper 20s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

West Sister Temperature Statistics

October Temperature

Pease Air Force Base / Portsmouth (6.8 miles)

  • Lowest 18 October, 2026

    29.1 °F

  • Average October

    52.9 °F

  • Highest 2 October, 2026

    85.6 °F

Climate (2021–2026)

Pease Air Force Base / Portsmouth (6.8 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    59.1 °F
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