South Haven Weather Forecast

    • 47
    • 69

    Mostly Sunny

    • 54
    • 62

    Rain Showers

    • 47
    • 69

    Mostly Sunny

    • 52
    • 67

    Mostly Cloudy

    • 54
    • 72

    Rain Showers Likely

    • 55
    • 69

    Rain Showers Likely

    • 50
    • 70

    Partly Sunny

Today 13 Sep Wright

Sunny. Near steady temperature in the upper 60s. Northwest Winds 5 to 10 Mph.

Tonight 13 Sep Wright

Clear. Lows in the upper 40s. Northwest Winds up to 5 Mph shifting to the east after midnight.

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  • Temperature Real-Time

South Haven Temperature Statistics

September Temperature

Maple Lake, Maple Lake Municipal Airport (11.2 miles)

  • Lowest 10 September, 2026

    50.9 °F

  • Average September

    73.6 °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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