Mendon Weather Forecast

    • 58
    • 86

    Mostly Sunny

    • 60
    • 88

    Increasing Clouds

    • 62
    • 87

    Mostly Cloudy

    • 62
    • 84

    Chance Thunderstorms

    • 62
    • 79

    Rain Showers Likely

    • 60
    • 78

    Chance Rain Showers

    • 58
    • 75

    Chance Rain Showers

Today 18 Sep Mercer

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

Tonight 18 Sep Mercer

Clear. Lows in the upper 50s. North Winds around 5 Mph early this Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mendon Temperature Statistics

September Temperature

Lima, Lima Allen County Airport (26.1 miles)

  • Lowest 8 September, 2025

    39 °F

  • Average September

    63.6 °F

  • Highest 15 September, 2025

    84.9 °F

Climate (2020–Present)

Lima, Lima Allen County Airport (26.1 miles)

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  • Average Low 2020–2025

    44.5 °F

  • Average 2020–2025

    53.5 °F

  • Average High 2020–2025

    62.6 °F
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