Clear Lake Weather Forecast

    • 59
    • 87

    Breezy

    • 51
    • 75

    Mostly Sunny

    • 50
    • 64

    Rain Showers

    • 53
    • 73

    Rain Showers Likely

    • 48
    • 67

    Partly Sunny

    • 51
    • 66

    Slight Chance Thunderstorms

Today 11 Sep Brown

Breezy. Mostly sunny. Highs in the mid 80s. South Winds 15 to 25 Mph with Gusts to around 40 Mph.

Tonight 11 Sep Brown

Warmer, clear. Near steady temperature in the mid 60s. South Winds 10 to 15 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clear Lake Temperature Statistics

September Temperature

New Ulm Municipal Airport (4.3 miles)

  • Lowest 1 September, 2026

    60.8 °F

  • Average September

    75 °F

  • Highest 3 September, 2026

    89.6 °F

Climate (2021–2026)

New Ulm Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    37.7 °F

  • Average 2021–2026

    47.4 °F

  • Average High 2021–2026

    57.1 °F
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