Grantville Weather Forecast

    • 30
    • 38

    Increasing Clouds

    • 21
    • 40

    Partly Sunny

    • 28
    • 37

    Mostly Cloudy

    • 32
    • 46

    Mostly Cloudy

    • 31
    • 43

    Mostly Cloudy

    • 42
    • 50

    Chance Rain Showers

Today 20 Dec Dauphin

Mostly sunny. Much cooler with Highs in the upper 30s. West Winds 5 to 10 Mph, becoming south this afternoon.

Tonight 20 Dec Dauphin

Partly cloudy in the Evening, then becoming mostly cloudy. Not as cool with Lows in the lower 30s. South Winds 5 to 10 Mph, becoming southwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grantville Temperature Statistics

December Temperature

Muir Army Air Field / Indiantown (5.6 miles)

  • Lowest 16 December, 2025

    6.1 °F

  • Average December

    28.6 °F

  • Highest 17 December, 2025

    47.7 °F

Climate (2020–Present)

Muir Army Air Field / Indiantown (5.6 miles)

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  • Average Low 2020–2025

    45.4 °F

  • Average 2020–2025

    54.9 °F

  • Average High 2020–2025

    64.2 °F
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