Upper Sioux Agency State Park Weather Forecast

    • 29
    • 39

    Mostly Cloudy

    • 29
    • 46

    Mostly Cloudy

    • 23
    • 40

    Partly Sunny

    • 24
    • 39

    Mostly Cloudy

    • 24
    • 39

    Slight Chance Snow

    • 26
    • 43

    Mostly Cloudy

Today 8 Feb Yellow Medicine

Partly cloudy. Highs in the lower 40s. Southeast Winds up to 10 Mph.

Tonight 8 Feb Yellow Medicine

Increasing Clouds. Near steady temperature in the mid 30s. South Winds 5 to 10 Mph.

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Upper Sioux Agency State Park Temperature Statistics

February Temperature

Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (5.6 miles)

  • Lowest 3 February, 2026

    -3.6 °F

  • Average February

    22.2 °F

  • Highest 5 February, 2026

    45.3 °F

Climate (2021–Present)

Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (5.6 miles)

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  • Average Low 2021–2026

    37.4 °F

  • Average 2021–2026

    47.9 °F

  • Average High 2021–2026

    58.4 °F
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