Round Lake Weather Forecast

    • 44
    • 68

    Decreasing Clouds

    • 44
    • 74

    Mostly Sunny

    • 48
    • 78

    Mostly Sunny

    • 50
    • 79

    Partly Sunny

    • 49
    • 78

    Partly Sunny

    • 48
    • 76

    Partly Sunny

    • 46
    • 72

    Mostly Cloudy

Today 19 Sep Eastern Pondera and Eastern Teton

Cooler. Mostly cloudy. A 20 percent chance of rain. Lows in the mid 40s. Highs in the lower 60s.

Tonight 19 Sep Eastern Pondera and Eastern Teton

Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 40s. South Winds up to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Round Lake Temperature Statistics

September Temperature

Cut Bank, Cut Bank Municipal Airport (46 miles)

  • Lowest 17 September, 2026

    37 °F

  • Average September

    55.6 °F

  • Highest 1 September, 2026

    82.7 °F

Climate (2021–2026)

Cut Bank, Cut Bank Municipal Airport (46 miles)

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

  • Average Low 2021–2026

    31.5 °F

  • Average 2021–2026

    43.8 °F

  • Average High 2021–2026

    55.5 °F
Get WillyWeather+ to remove ads