Straits Lake Weather Forecast

    • 58
    • 80

    Increasing Clouds

    • 50
    • 68

    Rain Showers Likely

    • 49
    • 76

    Partly Sunny

    • 45
    • 68

    Mostly Sunny

    • 45
    • 68

    Mostly Sunny

    • 50
    • 71

    Partly Sunny

Today 3 Sep Morrow

Mostly sunny. Highs in the lower 80s. South Winds 5 to 10 Mph.

Tonight 3 Sep Morrow

Partly cloudy in the Evening, then mostly cloudy with Showers likely with a slight chance of Thunderstorms after midnight. Lows in the upper 50s. Southwest Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

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Straits Lake Temperature Statistics

September Temperature

Marion, Marion Municipal Airport (16.2 miles)

  • Lowest 1 September, 2025

    45 °F

  • Average September

    62.7 °F

  • Highest 1 September, 2025

    80.1 °F

Climate (2020–Present)

Marion, Marion Municipal Airport (16.2 miles)

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  • Average Low 2020–2025

    43.1 °F

  • Average 2020–2025

    52.4 °F

  • Average High 2020–2025

    61.9 °F
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