Lake Janus Weather Forecast

    • 28
    • 39

    Snow Showers

    • 28
    • 31

    Snow

    • 24
    • 34

    Snow

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    • 29

    Snow

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    • 29

    Snow

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    Snow

Today 16 Dec Cascades of Snohomish and Northern King Counties

Rain and snow through the day. Widespread dense freezing fog late in the morning. Patchy fog in the afternoon. Snow level near 5000 feet. Snow accumulation up to 3 Inches. Afternoon pass Temperatures in the upper 30s. Southwest wind in the Passes around 10 Mph.

Tonight 16 Dec Cascades of Snohomish and Northern King Counties

Windy. Patchy fog in the evening. Areas of fog late in the Evening, then patchy fog after midnight. Rain and snow. Snow level near 5500 feet. Precipitation may be heavy at Times after midnight. Rainfall Amounts one to three Inches possible. Snow accumulation of 1 to 3 Inches. Lows in the mid 20s. Southwest wind in the Passes 10 to 15 Mph increasing to 20 to 30 Mph after Midnight, Gusts to 40 Mph after midnight.

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Lake Janus Temperature Statistics

December Temperature

Stampede Pass (39.8 miles)

  • Lowest 1 December, 2025

    23 °F

  • Average December

    36.6 °F

  • Highest 13 December, 2025

    51.1 °F

Climate (2020–Present)

Stampede Pass (39.8 miles)

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  • Average Low 2020–2025

    36.3 °F

  • Average 2020–2025

    41.6 °F

  • Average High 2020–2025

    48.3 °F
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