Grantville Weather Forecast

    • 57
    • 81

    Decreasing Clouds

    • 55
    • 78

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

    • 60
    • 83

    Partly Sunny

    • 68
    • 86

    Chance Rain Showers

    • 59
    • 85

    Slight Chance Thunderstorms

Today 5 Sep Dauphin

Mostly sunny. Highs around 80. North Winds 5 to 10 Mph.

Tonight 5 Sep Dauphin

Mostly cloudy with a 40 percent chance of Showers. Lows in the upper 60s. North Winds around 5 Mph.

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  • Temperature Real-Time

Grantville Temperature Statistics

September Temperature

Muir Army Air Field / Indiantown (5.6 miles)

  • Lowest 2 September, 2026

    68 °F

  • Average September

    75.1 °F

  • Highest 1 September, 2026

    92.1 °F

Climate (2021–2026)

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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