Mechanicsburg Weather Forecast

    • 61
    • 78

    Chance Thunderstorms

    • 64
    • 80

    Chance Rain Showers

    • 65
    • 81

    Rain Showers Likely

    • 63
    • 83

    Partly Sunny

    • 67
    • 83

    Mostly Sunny

    • 62
    • 87

    Chance Rain Showers

Today 10 Sep Champaign

Partly cloudy early this Morning, then becoming mostly cloudy. Patchy fog this morning. A slight chance of Showers this Morning, then a chance of Showers and Thunderstorms this afternoon. Highs in the upper 70s. Light and variable Winds, becoming west around 5 Mph this late morning and afternoon. Chance of rain 50 percent.

Tonight 10 Sep Champaign

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms this evening. Lows in the lower 60s. North Winds around 5 Mph this Evening, becoming light and Variable, then becoming north around 5 Mph late. Chance of rain 50 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mechanicsburg Temperature Statistics

September Temperature

London Madison County Airport (10.6 miles)

  • Lowest 7 September, 2026

    57.2 °F

  • Average September

    74.9 °F

  • Highest 3 September, 2026

    93.2 °F

Climate (2021–2026)

London Madison County Airport (10.6 miles)

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

  • Average Low 2021–2026

    42.7 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    62.7 °F
Get WillyWeather+ to remove ads