Harrisburg Weather Forecast

    • 62
    • 78

    Increasing Clouds

    • 63
    • 81

    Mostly Cloudy

    • 59
    • 83

    Chance Rain Showers

    • 54
    • 70

    Chance Rain Showers

    • 52
    • 66

    Chance Rain Showers

    • 45
    • 67

    Mostly Sunny

Today 30 Sep Dauphin

Mostly cloudy. Highs in the upper 70s. Southwest Winds around 5 Mph.

Tonight 30 Sep Dauphin

Mostly cloudy. Patchy fog after midnight. Lows around 60. South Winds around 5 Mph.

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Harrisburg Temperature Statistics

September Temperature

Harrisburg, Capital City Airport (3.7 miles)

  • Lowest 25 September, 2026

    45 °F

  • Average September

    69.3 °F

  • Highest 1 September, 2026

    91.9 °F

Climate (2021–2026)

Harrisburg, Capital City Airport (3.7 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    56.8 °F

  • Average High 2021–2026

    66.1 °F
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