Big Stone National Wildlife Refuge Weather Forecast

    • 63
    • 86

    Partly Sunny

    • 59
    • 81

    Partly Sunny

    • 57
    • 80

    Chance Thunderstorms

    • 59
    • 84

    Chance Thunderstorms

    • 60
    • 85

    Slight Chance Thunderstorms

    • 60
    • 86

    Partly Sunny

Today 29 May Lac Qui Parle

Mostly cloudy. A 20 percent chance of Showers late in the afternoon. Near steady temperature in the mid 80s. Southeast Winds 5 to 15 Mph.

Tonight 29 May Lac Qui Parle

Cloudy. Slight chance of Showers early in the evening. Slight chance of Showers after Midnight, then chance of Showers late in the night. Lows in the lower 60s. Southeast Winds 5 to 10 Mph. Chance of Showers 40 percent.

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Big Stone National Wildlife Refuge Temperature Statistics

May Temperature

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

  • Lowest 7 May, 2026

    30.2 °F

  • Average May

    57.3 °F

  • Highest 25 May, 2026

    93.2 °F

Climate (2021–Present)

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

    55.2 °F
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