Lewis & Clark National Forest Weather Forecast

    • 53
    • 75

    Decreasing Clouds

    • 58
    • 81

    Partly Sunny

    • 58
    • 87

    Mostly Sunny

    • 54
    • 84

    Mostly Sunny

    • 50
    • 76

    Mostly Sunny

    • 49
    • 72

    Mostly Sunny

Today 17 Aug Little Belt and Highwood Mountains

Partly cloudy in the Morning, then mostly cloudy with a 50 percent chance of Thunderstorms in the afternoon. Highs 70 to 80. Southwest Winds up to 10 Mph.

Tonight 17 Aug Little Belt and Highwood Mountains

Mostly cloudy with a 50 percent chance of Thunderstorms in the Evening, then partly cloudy after midnight. Haze after midnight. Lows 50 to 55. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewis & Clark National Forest Temperature Statistics

August Temperature

Malmstrom Air Force Base (35.4 miles)

  • Lowest 8 August, 2025

    50.6 °F

  • Average August

    69.9 °F

  • Highest 13 August, 2025

    93.4 °F

Climate (2020–Present)

Malmstrom Air Force Base (35.4 miles)

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  • Average Low 2020–2025

    35.3 °F

  • Average 2020–2025

    46.9 °F

  • Average High 2020–2025

    58 °F
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