Straits Lake Weather Forecast

    • 66
    • 75

    Rain Showers Likely

    • 55
    • 76

    Rain Showers

    • 53
    • 68

    Chance Rain Showers

    • 55
    • 68

    Chance Rain Showers

    • 53
    • 67

    Chance Rain Showers

    • 51
    • 68

    Slight Chance Rain Showers

    • 51
    • 70

    Partly Sunny

Today 19 Sep Morrow

Showers likely with a chance of Thunderstorms. Highs in the mid 70s. South Winds around 5 Mph. Chance of rain 70 percent.

Tonight 19 Sep Morrow

A chance of Showers and Thunderstorms in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Not as cool. Humid with Lows in the upper 60s. South Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Straits Lake Temperature Statistics

September Temperature

Marion, Marion Municipal Airport (16.2 miles)

  • Lowest 14 September, 2026

    50 °F

  • Average September

    72.8 °F

  • Highest 3 September, 2026

    93.9 °F

Climate (2021–2026)

Marion, Marion Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    53.3 °F

  • Average High 2021–2026

    63 °F
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