Thunder Basin National Grassland Weather Forecast

    • 56
    • 77

    Thunderstorms Likely

    • 41
    • 74

    Mostly Sunny

    • 49
    • 72

    Mostly Sunny

    • 47
    • 77

    Chance Rain Showers

    • 47
    • 72

    Chance Rain Showers

    • 45
    • 75

    Mostly Sunny

Today 13 Sep Southern Campbell

Partly cloudy this Morning, then clearing. Breezy with Highs in the upper 70s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph, increasing to 15 to 25 Mph with Gusts up to 35 Mph this afternoon.

Tonight 13 Sep Southern Campbell

Partly cloudy. Showers and Thunderstorms likely in the Evening, then a chance of Showers and Thunderstorms after midnight. Breezy with Lows in the lower 50s. South Winds 20 to 30 Mph with Gusts up to 40 Mph. Chance of rain 60 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Thunder Basin National Grassland Temperature Statistics

September Temperature

Douglas, Converse County Airport (51 miles)

  • Lowest 10 September, 2026

    42.1 °F

  • Average September

    70.6 °F

  • Highest 4 September, 2026

    94.6 °F

Climate (2021–2026)

Douglas, Converse County Airport (51 miles)

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

  • Average Low 2021–2026

    33.2 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    63.2 °F
Get WillyWeather+ to remove ads