Sylvan Lake Weather Forecast

    • 56
    • 71

    Slight Chance Rain Showers

    • 57
    • 79

    Mostly Sunny

    • 55
    • 77

    Mostly Sunny

    • 55
    • 75

    Mostly Sunny

    • 56
    • 77

    Partly Sunny

    • 59
    • 82

    Mostly Sunny

Today 23 Jul Kootenai/Cabinet Region

Partly cloudy. Areas of fog early in the morning. A 20 percent chance of rain Showers in the afternoon. Highs in the upper 70s to mid 80s.

Tonight 23 Jul Kootenai/Cabinet Region

Mostly clear. Lows in the upper 40s to mid 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sylvan Lake Temperature Statistics

July Temperature

Mullan Pass, Mullan Pass Vor (36 miles)

  • Lowest 5 July, 2025

    42.7 °F

  • Average July

    61.4 °F

  • Highest 1 July, 2025

    80.7 °F

Climate (2020–Present)

Mullan Pass, Mullan Pass Vor (36 miles)

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  • Average Low 2020–2025

    33.6 °F

  • Average 2020–2025

    39.6 °F

  • Average High 2020–2025

    46 °F
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