Horn Island Weather Forecast

    • 41
    • 46

    Increasing Clouds

    • 28
    • 54

    Rain

    • 35
    • 38

    Slight Chance Rain

    • 23
    • 44

    Partly Sunny

    • 21
    • 28

    Partly Sunny

    • 30
    • 36

    Chance Rain/Snow

Today 18 Dec Coastal York

Mostly sunny. Highs in the mid 40s. Light and variable Winds.

Tonight 18 Dec Coastal York

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Horn Island Temperature Statistics

December Temperature

Pease Air Force Base / Portsmouth (6.8 miles)

  • Lowest 5 December, 2025

    6.8 °F

  • Average December

    26.4 °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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