Big Stone National Wildlife Refuge Weather Forecast

    • 66
    • 85

    Chance Thunderstorms

    • 66
    • 85

    Rain Showers Likely

    • 69
    • 85

    Rain Showers Likely

    • 58
    • 84

    Partly Sunny

    • 53
    • 80

    Partly Sunny

    • 57
    • 82

    Partly Sunny

Today 5 Sep Lac Qui Parle

Mostly cloudy with chance of Showers and slight chance of Thunderstorms in the Morning, then mostly sunny with slight chance of Thunderstorms in the afternoon. Highs in the mid 80s. Southeast Winds 5 to 10 Mph. Chance of precipitation 50 percent.

Tonight 5 Sep Lac Qui Parle

Increasing Clouds. Near steady temperature in the mid 60s. East Winds 5 to 10 Mph.

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Big Stone National Wildlife Refuge Temperature Statistics

September Temperature

Ortonville, Ortonville Muncipal-Martinson Field Airport (5 miles)

  • Lowest 1 September, 2026

    55.4 °F

  • Average September

    70.8 °F

  • Highest 2 September, 2026

    84.2 °F

Climate (2021–2026)

Ortonville, Ortonville Muncipal-Martinson Field Airport (5 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    55.1 °F
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