Ketchum Weather Forecast

    • 45
    • 79

    Decreasing Clouds

    • 43
    • 75

    Mostly Sunny

    • 41
    • 78

    Chance Rain Showers

    • 30
    • 60

    Mostly Sunny

    • 35
    • 63

    Mostly Sunny

    • 40
    • 69

    Mostly Sunny

Today 10 Sep Sun Valley Region

Increasing Clouds. Highs 70 to 79.

Tonight 10 Sep Sun Valley Region

Partly cloudy. Lows 41 to 50.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Ketchum Temperature Statistics

September Temperature

Hailey, Friedman Memorial Airport (12.4 miles)

  • Lowest 8 September, 2026

    37.4 °F

  • Average September

    55.1 °F

  • Highest 1 September, 2026

    77 °F

Climate (2021–2026)

Hailey, Friedman Memorial Airport (12.4 miles)

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

  • Average Low 2021–2026

    34.8 °F

  • Average 2021–2026

    43.3 °F

  • Average High 2021–2026

    56.6 °F
Get WillyWeather+ to remove ads