Willow Creek Reservoir Weather Forecast

    • 45
    • 66

    Rain Likely

    • 45
    • 68

    Slight Chance Rain

    • 45
    • 74

    Mostly Sunny

    • 46
    • 79

    Mostly Sunny

    • 46
    • 77

    Partly Sunny

    • 46
    • 77

    Partly Sunny

Today 15 Sep Missouri Headwaters

Cooler. Mostly cloudy. Chance of rain Showers in the Morning, then rain Showers likely and slight chance of Thunderstorms in the afternoon. Highs in the mid 60s. West Winds up to 10 Mph. Chance of precipitation 70 percent.

Tonight 15 Sep Missouri Headwaters

Mostly cloudy. Chance of Thunderstorms in the Evening, then chance of rain Showers after midnight. Lows in the mid 40s. West Winds up to 10 Mph. Chance of precipitation 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Willow Creek Reservoir Temperature Statistics

September Temperature

Bozeman, Gallatin Field (26.7 miles)

  • Lowest 6 September, 2025

    39.9 °F

  • Average September

    63.1 °F

  • Highest 2 September, 2025

    89.1 °F

Climate (2020–Present)

Bozeman, Gallatin Field (26.7 miles)

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

  • Average Low 2020–2025

    30.6 °F

  • Average 2020–2025

    44.3 °F

  • Average High 2020–2025

    57.8 °F
Get WillyWeather+ to remove ads