Harlowton Weather Forecast

    • 45
    • 81

    Decreasing Clouds

    • 49
    • 85

    Slight Chance Thunderstorms

    • 50
    • 86

    Rain Showers Likely

    • 48
    • 75

    Rain Showers

    • 49
    • 76

    Chance Thunderstorms

    • 48
    • 79

    Rain Showers Likely

Today 24 May Southern Wheatland

Decreasing Clouds. Highs in the lower 80s. West Winds 10 to 20 Mph.

Tonight 24 May Southern Wheatland

Mostly clear. Lows in the mid 40s. Northwest Winds 5 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Harlowton Temperature Statistics

May Temperature

Lewistown, Lewistown Municipal Airport (45.4 miles)

  • Lowest 6 May, 2026

    18.6 °F

  • Average May

    49.7 °F

  • Highest 13 May, 2026

    87.7 °F

Climate (2021–Present)

Lewistown, Lewistown Municipal Airport (45.4 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    32.7 °F

  • Average 2021–2026

    45 °F

  • Average High 2021–2026

    57.2 °F
Get WillyWeather+ to remove ads