Simmon Lake Weather Forecast

    • 65
    • 80

    Increasing Clouds

    • 51
    • 82

    Chance Rain Showers

    • 47
    • 66

    Partly Sunny

    • 49
    • 57

    Rain Showers

    • 43
    • 59

    Slight Chance Rain Showers

    • 46
    • 60

    Partly Sunny

Today 10 Sep Marshall

Sunny. Highs in the lower 80s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 10 Sep Marshall

Mostly clear in the Evening, then becoming partly cloudy. Warmer with Lows in the mid 60s. South Winds 15 to 20 Mph with Gusts up to 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Simmon Lake Temperature Statistics

September Temperature

Sisseton, Sisseton Municipal Airport (16.8 miles)

  • Lowest 1 September, 2026

    53.1 °F

  • Average September

    72.3 °F

  • Highest 3 September, 2026

    91.9 °F

Climate (2021–2026)

Sisseton, Sisseton Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    57 °F
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