Siah Lake Weather Forecast

    • 40
    • 61

    Mostly Sunny

    • 42
    • 62

    Mostly Sunny

    • 42
    • 64

    Mostly Sunny

    • 38
    • 56

    Mostly Cloudy

    • 37
    • 52

    Mostly Cloudy

    • 38
    • 55

    Chance Rain

Today 10 May Southern Clearwater Mountains

Sunny. Widespread frost early in the morning. Highs 64 to 79.

Tonight 10 May Southern Clearwater Mountains

Mostly clear. Patchy frost late in the night. Lows 39 to 52.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Siah Lake Temperature Statistics

May Temperature

Missoula, Missoula International Airport (31.7 miles)

  • Lowest 1 May, 2024

    27.8 °F

  • Average May

    45.7 °F

  • Highest 4 May, 2024

    68.6 °F

Climate (2019–Present)

Missoula, Missoula International Airport (31.7 miles)

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  • Average Low 2019–2024

    35.4 °F

  • Average 2019–2024

    46.4 °F

  • Average High 2019–2024

    58.2 °F
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