Lewis & Clark Caverns State Park Weather Forecast

    • 25
    • 39

    Mostly Cloudy

    • 33
    • 47

    Rain Likely

    • 31
    • 46

    Rain Likely

    • 31
    • 52

    Chance Rain

    • 29
    • 56

    Chance Rain

    • 34
    • 57

    Partly Sunny

Today 13 Oct Missouri Headwaters

Mostly cloudy. A 20 percent chance of snow late in the morning. Highs 35 to 40. Northeast Winds 10 to 15 Mph.

Tonight 13 Oct Missouri Headwaters

Mostly cloudy. Lows in the mid 20s. North Winds 5 to 15 Mph.

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Lewis & Clark Caverns State Park Temperature Statistics

October Temperature

Butte, Bert Mooney Airport (31.7 miles)

  • Lowest 6 October, 2025

    19.9 °F

  • Average October

    47.4 °F

  • Highest 9 October, 2025

    71.1 °F

Climate (2020–Present)

Butte, Bert Mooney Airport (31.7 miles)

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  • Average Low 2020–2025

    27.7 °F

  • Average 2020–2025

    41.6 °F

  • Average High 2020–2025

    55 °F
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