Mechanicsburg Weather Forecast

    • 66
    • 84

    Rain Showers Likely

    • 58
    • 79

    Mostly Cloudy

    • 68
    • 80

    Rain Showers Likely

    • 60
    • 83

    Rain Showers Likely

    • 58
    • 73

    Chance Rain Showers

    • 57
    • 71

    Chance Rain Showers

    • 56
    • 71

    Slight Chance Rain Showers

Today 17 Sep Champaign

Partly cloudy. Highs in the lower 70s.

Tonight 17 Sep Champaign

Mostly cloudy. A chance of Showers and Thunderstorms this Evening, then Showers likely with a chance of Thunderstorms after midnight. Lows in the mid 60s. North Winds around 5 Mph, becoming northeast after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mechanicsburg Temperature Statistics

September Temperature

London Madison County Airport (10.6 miles)

  • Lowest 14 September, 2026

    51.8 °F

  • Average September

    73 °F

  • Highest 3 September, 2026

    93.2 °F

Climate (2021–2026)

London Madison County Airport (10.6 miles)

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  • Average Low 2021–2026

    42.7 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    62.7 °F
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