South Haven Weather Forecast

    • 63
    • 77

    Rain Showers Likely

    • 59
    • 70

    Rain Showers

    • 58
    • 71

    Chance Thunderstorms

    • 59
    • 75

    Chance Thunderstorms

    • 57
    • 77

    Slight Chance Thunderstorms

    • 56
    • 71

    Mostly Sunny

Today 18 Sep Wright

Partly sunny. Slight chance of Thunderstorms early in the afternoon. Chance of Thunderstorms late in the afternoon. Highs in the upper 70s. Southeast Winds up to 10 Mph. Chance of Thunderstorms 40 percent.

Tonight 18 Sep Wright

Cloudy. Chance of Thunderstorms in the Evening, then Showers likely and chance of Thunderstorms after midnight. Lows in the lower 60s. East Winds up to 5 Mph. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Haven Temperature Statistics

September Temperature

Maple Lake, Maple Lake Municipal Airport (11.2 miles)

  • Lowest 7 September, 2025

    41.5 °F

  • Average September

    64.2 °F

  • Highest 16 September, 2025

    90.1 °F

Climate (2020–Present)

Maple Lake, Maple Lake Municipal Airport (11.2 miles)

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  • Average Low 2020–2025

    37.4 °F

  • Average 2020–2025

    46.8 °F

  • Average High 2020–2025

    55.9 °F
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