Upper Brennan Lake Weather Forecast

    • 50
    • 69

    Rain Showers

    • 38
    • 58

    Rain Showers

    • 42
    • 59

    Rain Showers

    • 38
    • 52

    Rain Showers Likely

    • 34
    • 52

    Chance Rain Showers

    • 35
    • 57

    Slight Chance Rain Showers

Today 18 Oct Clare

Cloudy with a 50 percent chance of Showers and Thunderstorms. Highs in the upper 60s. Southwest Winds 5 to 10 Mph with Gusts to around 20 Mph.

Tonight 18 Oct Clare

Rain Showers and a slight chance of Thunderstorms after midnight. Lows in the upper 40s. Light Winds. Chance of rain 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Brennan Lake Temperature Statistics

October Temperature

Mount Pleasant, Mount Pleasant Municipal Airport (24.9 miles)

  • Lowest 9 October, 2025

    33.4 °F

  • Average October

    56.8 °F

  • Highest 4 October, 2025

    87.3 °F

Climate (2020–Present)

Mount Pleasant, Mount Pleasant Municipal Airport (24.9 miles)

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  • Average Low 2020–2025

    39.6 °F

  • Average 2020–2025

    49.1 °F

  • Average High 2020–2025

    58.5 °F
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