Harrisburg Weather Forecast

    • 59
    • 85

    Mostly Sunny

    • 56
    • 87

    Mostly Sunny

    • 59
    • 79

    Partly Sunny

    • 61
    • 76

    Mostly Cloudy

    • 63
    • 82

    Partly Sunny

    • 63
    • 86

    Chance Rain Showers

Today 18 Sep Dauphin

Sunny. Highs in the mid 80s. Northwest Winds around 5 Mph.

Tonight 18 Sep Dauphin

Mostly clear. Lows in the upper 50s. Northwest Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Harrisburg Temperature Statistics

September Temperature

Harrisburg, Capital City Airport (3.7 miles)

  • Lowest 8 September, 2025

    46 °F

  • Average September

    68.3 °F

  • Highest 14 September, 2025

    86 °F

Climate (2020–Present)

Harrisburg, Capital City Airport (3.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    48 °F

  • Average 2020–2025

    57.3 °F

  • Average High 2020–2025

    66.7 °F
Get WillyWeather+ to remove ads