Storm Lake Weather Forecast

    • 46
    • 69

    Mostly Sunny

    • 46
    • 69

    Mostly Sunny

    • 46
    • 70

    Mostly Sunny

    • 48
    • 74

    Partly Sunny

    • 50
    • 72

    Partly Sunny

    • 50
    • 71

    Partly Sunny

Today 20 Aug Southern Clearwater Mountains

Mostly sunny. Patchy fog early in the morning. Highs 72 to 87.

Tonight 20 Aug Southern Clearwater Mountains

Mostly clear. Lows 40 to 55.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Storm Lake Temperature Statistics

August Temperature

Missoula, Missoula International Airport (28 miles)

  • Lowest 8 August, 2025

    47.6 °F

  • Average August

    68.3 °F

  • Highest 12 August, 2025

    94.6 °F

Climate (2020–Present)

Missoula, Missoula International Airport (28 miles)

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  • Average Low 2020–2025

    35.5 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    59.2 °F
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