South Lake Weather Forecast

    • 45
    • 69

    Chance Rain Showers

    • 49
    • 64

    Rain Showers Likely

    • 48
    • 67

    Chance Rain Showers

    • 45
    • 61

    Mostly Cloudy

    • 47
    • 62

    Partly Sunny

    • 48
    • 67

    Mostly Cloudy

Today 18 Sep Clare

Sunny in the morning then becoming partly sunny. Highs in the upper 60s. Light Winds.

Tonight 18 Sep Clare

Cloudy with a 20 percent chance of rain Showers. Lows in the lower 40s. East Winds around 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Lake Temperature Statistics

September Temperature

Mount Pleasant, Mount Pleasant Municipal Airport (17.4 miles)

  • Lowest 14 September, 2026

    41 °F

  • Average September

    68.1 °F

  • Highest 1 September, 2026

    91.4 °F

Climate (2021–2026)

Mount Pleasant, Mount Pleasant Municipal Airport (17.4 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    49 °F

  • Average High 2021–2026

    58.5 °F
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