Grantville Weather Forecast

    • 23
    • 34

    Increasing Clouds

    • 27
    • 38

    Mostly Cloudy

    • 36
    • 45

    Chance Rain

    • 33
    • 50

    Mostly Cloudy

    • 40
    • 51

    Rain Likely

    • 43
    • 54

    Chance Rain

    • 31
    • 54

    Slight Chance Rain

Today 4 Jan Dauphin

Partly sunny. Highs in the lower 30s. Northwest Winds 5 to 10 Mph.

Tonight 4 Jan Dauphin

Mostly cloudy. Lows in the lower 20s. West Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grantville Temperature Statistics

January Temperature

Muir Army Air Field / Indiantown (5.6 miles)

  • Lowest 1 January, 2026

    19.6 °F

  • Average January

    25.5 °F

  • Highest 1 January, 2026

    31.8 °F

Climate (2021–Present)

Muir Army Air Field / Indiantown (5.6 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    64.1 °F
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