Upper Sioux Agency State Park Weather Forecast

    • -6
    • 23

    Snow Likely

    • 0
    • 7

    Chance Snow

    • 20
    • 32

    Mostly Cloudy

    • 11
    • 39

    Rain/Snow Likely

    • 6
    • 19

    Chance Snow

    • -5
    • 16

    Slight Chance Snow

    • -11
    • 6

    Cold

Today 6 Dec Yellow Medicine

Colder. Snow likely. New snow accumulation up to 1 inch. Total snow accumulation up to 3 Inches. Near steady temperature around 19. Northeast Winds 10 to 15 Mph. Chance of snow 70 percent.

Tonight 6 Dec Yellow Medicine

Much Colder. Cloudy with a 50 percent chance of snow early in the Evening, then mostly cloudy in the late evening and overnight. Lows around 6 below. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Sioux Agency State Park Temperature Statistics

December Temperature

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

  • Lowest 4 December, 2025

    -12.1 °F

  • Average December

    10.9 °F

  • Highest 2 December, 2025

    34.7 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    37.1 °F

  • Average 2020–2025

    47.7 °F

  • Average High 2020–2025

    58.1 °F
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