Opperman Lake Weather Forecast

    • 54
    • 67

    Mostly Cloudy

    • 49
    • 66

    Mostly Cloudy

    • 44
    • 64

    Partly Sunny

    • 46
    • 65

    Mostly Sunny

    • 51
    • 67

    Chance Rain Showers

    • 54
    • 68

    Chance Rain Showers

    • 57
    • 73

    Partly Sunny

Today 19 Sep West Otter Tail

Partly sunny. A chance of Showers. Highs 70 to 75.

Tonight 19 Sep West Otter Tail

Mostly cloudy. Lows in the mid 50s. Northeast 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 13 September, 2026

    44.6 °F

  • Average September

    66.9 °F

  • Highest 3 September, 2026

    89.6 °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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