South Haven Weather Forecast

    • 53
    • 59

    Rain

    • 51
    • 63

    Slight Chance Rain

    • 47
    • 68

    Mostly Cloudy

    • 43
    • 62

    Mostly Cloudy

    • 43
    • 63

    Partly Sunny

    • 47
    • 64

    Mostly Cloudy

Today 18 Sep Wright

Cooler. Rain in the Morning, then rain Showers and slight chance of Thunderstorms in the afternoon. Patchy fog through the day. Near steady temperature in the upper 50s. East Winds 5 to 15 Mph. Chance of precipitation near 100 percent.

Tonight 18 Sep Wright

Patchy fog in the evening. Rain in the Evening, then chance of rain after midnight. Near steady temperature in the upper 50s. East Winds 10 to 15 Mph. Chance of rain 90 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 14 September, 2026

    46.8 °F

  • Average September

    70.2 °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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