South Clear Lake Weather Forecast

    • 71
    • 90

    Chance Thunderstorms

    • 68
    • 88

    Rain Showers Likely

    • 61
    • 82

    Chance Thunderstorms

    • 58
    • 80

    Mostly Sunny

    • 61
    • 80

    Partly Sunny

    • 68
    • 83

    Chance Rain Showers

    • 67
    • 86

    Chance Rain Showers

Today 3 Sep Western St. Joseph

Mostly sunny with a slight chance of Showers and Thunderstorms. Hot. Near steady temperature around 90. West Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 100.

Tonight 3 Sep Western St. Joseph

Mostly clear. A slight chance of Showers and Thunderstorms after midnight. Lows in the lower 70s. South Winds around 5 Mph. Chance of rain 20 percent.

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South Clear Lake Temperature Statistics

September Temperature

South Bend International Airport (4.3 miles)

  • Lowest 1 September, 2026

    73.9 °F

  • Average September

    81 °F

  • Highest 1 September, 2026

    91 °F

Climate (2021–2026)

South Bend International Airport (4.3 miles)

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  • Average Low 2021–2026

    43.2 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    61.9 °F
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