Glen Ullin Weather Forecast

    • 58
    • 82

    Chance Thunderstorms

    • 56
    • 80

    Chance Rain Showers

    • 60
    • 83

    Chance Rain Showers

    • 61
    • 88

    Chance Thunderstorms

    • 60
    • 92

    Chance Thunderstorms

    • 61
    • 87

    Chance Thunderstorms

Today 22 Jul Morton

Mostly cloudy with a chance of Showers and Thunderstorms in the Morning, then partly sunny with a slight chance of Showers and Thunderstorms in the afternoon. Highs in the mid 80s. East Winds around 10 Mph. Chance of rain 40 percent.

Tonight 22 Jul Morton

Increasing Clouds. A slight chance of Thunderstorms. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Lows in the lower 60s. North Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Glen Ullin Temperature Statistics

July Temperature

Glen Ullin Regional Airport (1.2 miles)

  • Lowest 17 July, 2025

    37.4 °F

  • Average July

    69.2 °F

  • Highest 9 July, 2025

    96.8 °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

    54.8 °F
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