Sims Weather Forecast

    • 52
    • 78

    Mostly Sunny

    • 54
    • 83

    Mostly Sunny

    • 56
    • 80

    Partly Sunny

    • 56
    • 78

    Mostly Cloudy

    • 54
    • 76

    Slight Chance Thunderstorms

    • 55
    • 77

    Partly Sunny

Today 26 Aug Morton

Sunny. Highs in the upper 70s. South Winds around 5 Mph.

Tonight 26 Aug Morton

Mostly clear. Lows in the lower 50s. South Winds around 5 Mph.

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Sims Temperature Statistics

August Temperature

Glen Ullin Regional Airport (17.4 miles)

  • Lowest 23 August, 2025

    42.8 °F

  • Average August

    69.1 °F

  • Highest 20 August, 2025

    95 °F

Climate (2020–Present)

Glen Ullin Regional Airport (17.4 miles)

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  • Average Low 2020–2025

    29.7 °F

  • Average 2020–2025

    43 °F

  • Average High 2020–2025

    55.3 °F
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