Glen Ullin Weather Forecast

    • 13
    • 43

    Increasing Clouds

    • 15
    • 26

    Mostly Cloudy

    • 12
    • 41

    Chance Snow

    • -8
    • 24

    Chance Snow

    • -7
    • 4

    Chance Snow

    • -5
    • 7

    Chance Snow

    • -4
    • 13

    Chance Snow

Today 30 Jan Morton

Sunny. Highs in the lower 40s. North Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 30 Jan Morton

Partly cloudy. Patchy fog after midnight. Lows 15 to 20. North Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Glen Ullin Temperature Statistics

January Temperature

Glen Ullin Regional Airport (1.2 miles)

  • Lowest 20 January, 2025

    -22 °F

  • Average January

    12.8 °F

  • Highest 28 January, 2025

    44.6 °F

Climate (2020–Present)

Glen Ullin Regional Airport (1.2 miles)

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  • Average Low 2020–2025

    29.2 °F

  • Average 2020–2025

    42.6 °F

  • Average High 2020–2025

    54.9 °F
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