Lake Janus Weather Forecast

    • 47
    • 70

    Mostly Sunny

    • 51
    • 77

    Mostly Sunny

    • 53
    • 80

    Partly Sunny

    • 49
    • 77

    Mostly Sunny

    • 46
    • 67

    Chance Rain Showers

    • 44
    • 54

    Rain Showers Likely

Today 21 Jun Cascades of Snohomish and Northern King Counties

Sunny. Freezing level near 10500 feet. Afternoon pass Temperatures around 70. Light wind.

Tonight 21 Jun Cascades of Snohomish and Northern King Counties

Mostly clear. Freezing level near 11000 feet. Lows in the upper 40s. Light wind.

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Lake Janus Temperature Statistics

June Temperature

Stampede Pass (39.8 miles)

  • Lowest 6 June, 2026

    34 °F

  • Average June

    51.3 °F

  • Highest 15 June, 2026

    78.1 °F

Climate (2021–2026)

Stampede Pass (39.8 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    41.7 °F

  • Average High 2021–2026

    48.4 °F
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