Opperman Lake Weather Forecast

    • 55
    • 69

    Rain Showers

    • 48
    • 73

    Partly Sunny

    • 43
    • 61

    Mostly Sunny

    • 47
    • 62

    Partly Sunny

    • 43
    • 62

    Slight Chance Rain Showers

    • 40
    • 56

    Mostly Sunny

Today 29 Sep West Otter Tail

Mostly cloudy. Showers and a slight chance of Thunderstorms in the Morning, then a chance of Showers in the afternoon. Highs 65 to 70. Southwest Winds 10 to 20 Mph. Chance of rain 90 percent.

Tonight 29 Sep West Otter Tail

Mostly cloudy. Lows in the mid 50s. Southwest Winds up to 10 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

    64.3 °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

    53.5 °F
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