Wheatland County Airport at Harlowton Weather Forecast

    • 45
    • 72

    Rain Showers Likely

    • 43
    • 69

    Rain Showers Likely

    • 43
    • 75

    Mostly Sunny

    • 42
    • 75

    Mostly Sunny

    • 45
    • 77

    Partly Sunny

    • 47
    • 81

    Partly Sunny

Today 15 Sep Southern Wheatland

Mostly sunny. Chance of Showers late in the Morning, then chance of Showers and isolated Thunderstorms late in the afternoon. Cooler. Highs in the lower 70s. Northwest Winds 10 to 20 Mph. Chance of precipitation 50 percent.

Tonight 15 Sep Southern Wheatland

Rain Showers likely and scattered Thunderstorms in the Evening, then chance of rain Showers and isolated Thunderstorms overnight. Patchy fog after 3 am. Lows in the mid 40s. West Winds 5 to 15 Mph. Chance of precipitation 60 percent.

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Wheatland County Airport at Harlowton Temperature Statistics

September Temperature

Lewistown, Lewistown Municipal Airport (44.7 miles)

  • Lowest 5 September, 2025

    34 °F

  • Average September

    61.6 °F

  • Highest 2 September, 2025

    86 °F

Climate (2020–Present)

Lewistown, Lewistown Municipal Airport (44.7 miles)

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  • Average Low 2020–2025

    32.3 °F

  • Average 2020–2025

    44.4 °F

  • Average High 2020–2025

    56.3 °F
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