South Fork Tolt Reservoir Weather Forecast

    • 63
    • 92

    Patchy Smoke

    • 60
    • 94

    Increasing Clouds

    • 57
    • 80

    Slight Chance Rain

    • 53
    • 78

    Mostly Sunny

    • 53
    • 67

    Chance Rain

    • 52
    • 69

    Slight Chance Rain

    • 52
    • 69

    Mostly Cloudy

Today 21 Jul Cascades of Snohomish and Northern King Counties

Mostly sunny. Areas of smoke in the morning. Patchy smoke in the afternoon. Freezing level near 14500 feet. Afternoon pass Temperatures in the upper 80s. Light wind.

Tonight 21 Jul Cascades of Snohomish and Northern King Counties

Mostly clear. Patchy smoke. Freezing level near 15000 feet. Lows in the lower 60s. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

South Fork Tolt Reservoir Temperature Statistics

July Temperature

Renton Municipal Airport (29.2 miles)

  • Lowest 13 July, 2026

    53.1 °F

  • Average July

    66.3 °F

  • Highest 6 July, 2026

    84 °F

Climate (2021–2026)

Renton Municipal Airport (29.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.3 °F
Get WillyWeather+ to remove ads