South Clear Lake Weather Forecast

    • 68
    • 90

    Chance Thunderstorms

    • 60
    • 83

    Partly Sunny

    • 57
    • 79

    Mostly Sunny

    • 60
    • 80

    Partly Sunny

    • 68
    • 84

    Chance Rain Showers

    • 66
    • 86

    Chance Rain Showers

    • 57
    • 78

    Slight Chance Rain Showers

Today 4 Sep Western St. Joseph

Partly cloudy. Hot. Near steady temperature in the upper 80s. Southwest Winds around 5 Mph. Heat index Values in the upper 90s.

Tonight 4 Sep Western St. Joseph

Mostly clear with a slight chance of Showers and Thunderstorms this Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Lows in the upper 60s. West Winds around 5 Mph this Evening, becoming light and variable. Chance of rain 40 percent.

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South Clear Lake Temperature Statistics

September Temperature

South Bend International Airport (4.3 miles)

  • Lowest 2 September, 2026

    73.9 °F

  • Average September

    83 °F

  • Highest 2 September, 2026

    93 °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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