South Clear Lake Weather Forecast

    • 57
    • 78

    Mostly Cloudy

    • 57
    • 78

    Mostly Sunny

    • 61
    • 78

    Partly Sunny

    • 58
    • 75

    Slight Chance Thunderstorms

    • 55
    • 73

    Partly Sunny

    • 58
    • 75

    Partly Sunny

Today 19 Aug Western St. Joseph

Patchy fog early this morning. Mostly cloudy. Highs in the upper 70s. West Winds around 5 Mph, becoming northwest around 5 Mph this afternoon.

Tonight 19 Aug Western St. Joseph

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Lows in the upper 50s. North Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Real-Time

South Clear Lake Temperature Statistics

August Temperature

South Bend International Airport (4.3 miles)

  • Lowest 9 August, 2026

    59.6 °F

  • Average August

    73.8 °F

  • Highest 7 August, 2026

    87.7 °F

Climate (2021–2026)

South Bend International Airport (4.3 miles)

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  • Average Low 2021–2026

    43.3 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    62 °F
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