Upper Seymour Lake Weather Forecast

    • 29
    • 49

    Increasing Clouds

    • 28
    • 40

    Mostly Cloudy

    • 33
    • 51

    Mostly Cloudy

    • 34
    • 48

    Mostly Sunny

    • 38
    • 54

    Mostly Sunny

    • 40
    • 55

    Mostly Sunny

Today 13 Sep Butte/Blackfoot Region

Partly cloudy. Chance of rain Showers and a slight chance of Thunderstorms in the afternoon. Chance of precipitation 50 percent. Highs in the 60s. West Winds 15 to 20 Mph with Gusts to around 30 Mph in the afternoon.

Tonight 13 Sep Butte/Blackfoot Region

Partly cloudy in the evening then becoming mostly cloudy. A 50 percent chance of rain. Lows in the 30s. West Winds to 15 Mph with Gusts to around 30 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Seymour Lake Temperature Statistics

September Temperature

Butte, Bert Mooney Airport (37.3 miles)

  • Lowest 9 September, 2026

    32 °F

  • Average September

    56.7 °F

  • Highest 1 September, 2026

    79.6 °F

Climate (2021–2026)

Butte, Bert Mooney Airport (37.3 miles)

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

  • Average Low 2021–2026

    28.5 °F

  • Average 2021–2026

    42.3 °F

  • Average High 2021–2026

    55.7 °F
Get WillyWeather+ to remove ads