Square Butte Weather Forecast

    • 50
    • 78

    Mostly Sunny

    • 52
    • 79

    Mostly Sunny

    • 56
    • 85

    Mostly Sunny

    • 50
    • 79

    Slight Chance Rain

    • 49
    • 72

    Mostly Sunny

    • 51
    • 82

    Mostly Sunny

    • 53
    • 84

    Mostly Sunny

Today 18 Sep Western and Central Chouteau County

Sunny. Highs 75 to 80. East Winds up to 10 Mph.

Tonight 18 Sep Western and Central Chouteau County

Mostly clear. Lows 45 to 50. East Winds up to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Square Butte Temperature Statistics

September Temperature

Malmstrom Air Force Base (46 miles)

  • Lowest 5 September, 2025

    39.4 °F

  • Average September

    65.3 °F

  • Highest 3 September, 2025

    86.2 °F

Climate (2020–Present)

Malmstrom Air Force Base (46 miles)

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

  • Average Low 2020–2025

    35.4 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    58 °F
Get WillyWeather+ to remove ads