Swatara Weather Forecast

    • 66
    • 87

    Slight Chance Thunderstorms

    • 59
    • 82

    Partly Sunny

    • 57
    • 79

    Mostly Sunny

    • 58
    • 81

    Partly Sunny

    • 62
    • 84

    Partly Sunny

    • 70
    • 87

    Chance Rain Showers

Today 4 Sep Dauphin

Partly sunny with a slight chance of Showers and Thunderstorms. Highs in the mid 80s. Northwest Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 4 Sep Dauphin

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Humid with Lows in the mid 60s. North Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Swatara Temperature Statistics

September Temperature

Harrisburg, Harrisburg International Airport (7.5 miles)

  • Lowest 2 September, 2026

    71.1 °F

  • Average September

    77.9 °F

  • Highest 1 September, 2026

    92.6 °F

Climate (2021–2026)

Harrisburg, Harrisburg International Airport (7.5 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    55.9 °F

  • Average High 2021–2026

    65.1 °F
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