Simonson Lake Weather Forecast

    • 63
    • 78

    Mostly Cloudy

    • 66
    • 83

    Slight Chance Thunderstorms

    • 61
    • 79

    Chance Thunderstorms

    • 59
    • 82

    Chance Thunderstorms

    • 54
    • 73

    Chance Rain Showers

    • 50
    • 66

    Chance Rain Showers

Today 13 Sep Mahnomen

Mostly sunny. Highs 75 to 80. East Winds around 5 Mph and gusty.

Tonight 13 Sep Mahnomen

Mostly cloudy. Lows in the mid 60s. Southeast Winds 10 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Simonson Lake Temperature Statistics

September Temperature

Fosston, Fosston Municipal Airport (9.9 miles)

  • Lowest 7 September, 2025

    32 °F

  • Average September

    54.5 °F

  • Highest 1 September, 2025

    75.2 °F

Climate (2020–Present)

Fosston, Fosston Municipal Airport (9.9 miles)

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  • Average Low 2020–2025

    30.2 °F

  • Average 2020–2025

    40 °F

  • Average High 2020–2025

    49.3 °F
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