East Sister Weather Forecast

    • 55
    • 72

    Becoming Sunny

    • 51
    • 61

    Rain Showers

    • 50
    • 56

    Rain

    • 46
    • 56

    Chance Rain

    • 49
    • 59

    Chance Rain Showers

    • 50
    • 58

    Chance Rain Showers

    • 50
    • 61

    Partly Sunny

Today 27 May Coastal York

Partly sunny. Warm with Highs in the mid 80s. Northwest Winds around 10 Mph.

Tonight 27 May Coastal York

Partly cloudy in the Evening, then clearing. Lows in the mid 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

East Sister Temperature Statistics

May Temperature

Pease Air Force Base / Portsmouth (7.5 miles)

  • Lowest 9 May, 2026

    38.1 °F

  • Average May

    58.1 °F

  • Highest 19 May, 2026

    94.1 °F

Climate (2021–Present)

Pease Air Force Base / Portsmouth (7.5 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    59.1 °F
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