South Fork Tolt Reservoir Weather Forecast

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    Rain

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    Rain

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    Rain

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    Rain

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    Rain/Snow Likely

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    Rain Likely

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    Rain Likely

Today 7 Dec Cascades of Snohomish and Northern King Counties

Snow in the morning. Rain through the day. A slight chance of snow in the afternoon. Snow level near 5500 feet. Rainfall Amounts a half inch to one inch possible. Snow accumulation up to 2 Inches. Afternoon pass Temperatures in the mid 30s. Light wind becoming southwest around 10 Mph in the Afternoon, Gusts to 30 Mph in the afternoon.

Tonight 7 Dec Cascades of Snohomish and Northern King Counties

Rain and snow in the Evening, then rain and snow likely after midnight. Snow level near 4500 feet. Rainfall Amounts a quarter to a half inch possible. Snow accumulation up to 1 inch. Lows in the lower 30s. West wind in the Passes 10 to 15 Mph. Gusts to 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Fork Tolt Reservoir Temperature Statistics

December Temperature

Renton Municipal Airport (29.2 miles)

  • Lowest 1 December, 2025

    33.1 °F

  • Average December

    45.4 °F

  • Highest 5 December, 2025

    57 °F

Climate (2020–Present)

Renton Municipal Airport (29.2 miles)

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  • Average Low 2020–2025

    47.4 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    62.2 °F
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