Grantham Weather Forecast

    • 41
    • 56

    Mostly Sunny

    • 36
    • 58

    Partly Sunny

    • 36
    • 59

    Partly Sunny

    • 42
    • 61

    Partly Sunny

    • 36
    • 59

    Partly Sunny

    • 43
    • 60

    Chance Rain Showers

Today 31 Oct Cumberland

Mostly sunny. Near steady temperature in the mid 50s. West Winds 15 to 20 Mph with Gusts up to 50 Mph.

Tonight 31 Oct Cumberland

Mostly clear. Lows in the lower 40s. West Winds 10 to 15 Mph. Gusts up to 40 Mph, decreasing to 25 Mph after midnight.

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Grantham Temperature Statistics

October Temperature

Harrisburg, Capital City Airport (8.1 miles)

  • Lowest 27 October, 2025

    32 °F

  • Average October

    55.9 °F

  • Highest 5 October, 2025

    82 °F

Climate (2020–Present)

Harrisburg, Capital City Airport (8.1 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    57.3 °F

  • Average High 2020–2025

    66.7 °F
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