Opperman Lake Weather Forecast

    • 65
    • 87

    Mostly Sunny

    • 68
    • 88

    Chance Thunderstorms

    • 66
    • 84

    Rain Showers Likely

    • 66
    • 80

    Rain Showers

    • 60
    • 83

    Partly Sunny

    • 55
    • 77

    Partly Sunny

Today 4 Sep West Otter Tail

Patchy fog early this morning. Sunny. Highs in the mid 80s. Northeast Winds up to 10 Mph.

Tonight 4 Sep West Otter Tail

Mostly clear. Lows in the mid 60s. East Winds 5 to 15 Mph.

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Opperman Lake Temperature Statistics

September Temperature

Fergus Falls Municipal Airport-Einar Mickel (4.3 miles)

  • Lowest 1 September, 2026

    53.6 °F

  • Average September

    70.8 °F

  • Highest 2 September, 2026

    84.2 °F

Climate (2021–2026)

Fergus Falls Municipal Airport-Einar Mickel (4.3 miles)

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  • Average Low 2021–2026

    34.5 °F

  • Average 2021–2026

    44.1 °F

  • Average High 2021–2026

    53.6 °F
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