Ranger Lake Weather Forecast

    • 40
    • 45

    Chance Rain Showers

    • 44
    • 59

    Mostly Sunny

    • 47
    • 64

    Sunny

    • 48
    • 66

    Mostly Sunny

    • 49
    • 65

    Partly Sunny

    • 48
    • 65

    Partly Sunny

Today 15 Sep Southern Clearwater Mountains

Patchy fog in the morning. Patchy smoke late in the afternoon. Rain Showers likely early in the morning. Chance of rain Showers in the late morning and afternoon. Slight chance of Thunderstorms early in the afternoon. Chance of precipitation 70 percent. Highs 53 to 66.

Tonight 15 Sep Southern Clearwater Mountains

Mostly clear. Patchy fog through the night. Patchy frost after midnight. Lows 32 to 47.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ranger Lake Temperature Statistics

September Temperature

Missoula, Missoula International Airport (31.7 miles)

  • Lowest 13 September, 2025

    46.9 °F
  • Average September

    67.3 °F
  • Highest 2 September, 2025

    96.1 °F

Climate (2020–Present)

Missoula, Missoula International Airport (31.7 miles)

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  • Average Low 2020–2025

    35.6 °F
  • Average 2020–2025

    47.1 °F
  • Average High 2020–2025

    59.3 °F
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