Jack Lake Weather Forecast

    • 45
    • 48

    Slight Chance Rain Showers

    • 51
    • 65

    Sunny

    • 51
    • 68

    Sunny

    • 53
    • 69

    Mostly Sunny

    • 54
    • 70

    Partly Sunny

    • 53
    • 68

    Partly Sunny

Today 15 Sep Northern Clearwater Mountains

Mostly cloudy. A 50 percent chance of rain Showers in the morning. Patchy fog early in the morning. Highs in the upper 50s to mid 60s.

Tonight 15 Sep Northern Clearwater Mountains

Mostly clear. Lows in the mid 30s to lower 40s.

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Jack Lake Temperature Statistics

September Temperature

Lowell (41.6 miles)

  • Lowest 6 September, 2025

    54 °F

  • Average September

    64.1 °F

  • Highest 2 September, 2025

    91 °F

Climate (2020–Present)

Lowell (41.6 miles)

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  • Average Low 2020–2025

    41 °F

  • Average 2020–2025

    50.5 °F

  • Average High 2020–2025

    62.2 °F
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