Ketchum Weather Forecast

    • 69
    • 92

    Mostly Cloudy

    • 67
    • 92

    Mostly Sunny

    • 66
    • 92

    Partly Sunny

    • 65
    • 88

    Chance Thunderstorms

    • 63
    • 84

    Slight Chance Thunderstorms

    • 62
    • 85

    Partly Sunny

Today 14 Sep Craig

Partly sunny. Highs in the lower 90s. South Winds 5 to 10 Mph.

Tonight 14 Sep Craig

Mostly cloudy late this Evening, then becoming partly cloudy. Lows in the upper 60s. Southeast Winds around 5 Mph.

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Ketchum Temperature Statistics

September Temperature

Grove, Grove Municipal Airport (16.8 miles)

  • Lowest 7 September, 2025

    51.8 °F

  • Average September

    69.6 °F

  • Highest 11 September, 2025

    89.6 °F

Climate (2020–Present)

Grove, Grove Municipal Airport (16.8 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    58.7 °F

  • Average High 2020–2025

    70.1 °F
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