South Haven Weather Forecast

    • 48
    • 65

    Increasing Clouds

    • 44
    • 61

    Mostly Cloudy

    • 44
    • 63

    Mostly Sunny

    • 49
    • 65

    Partly Sunny

    • 53
    • 67

    Slight Chance Rain Showers

    • 56
    • 71

    Mostly Cloudy

Today 20 Sep Wright

Increasing Clouds. Highs in the mid 60s. Northeast Winds 5 to 15 Mph.

Tonight 20 Sep Wright

Cloudy. Lows in the upper 40s. Northeast Winds 5 to 10 Mph.

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South Haven Temperature Statistics

September Temperature

Maple Lake, Maple Lake Municipal Airport (11.2 miles)

  • Lowest 16 September, 2026

    45.3 °F

  • Average September

    69.2 °F

  • Highest 3 September, 2026

    88.7 °F

Climate (2021–2026)

Maple Lake, Maple Lake Municipal Airport (11.2 miles)

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  • Average Low 2021–2026

    37.6 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    56.1 °F
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