Rattlesnake Mountain Weather Forecast

    • 43
    • 56

    Decreasing Clouds

    • 51
    • 71

    Sunny

    • 42
    • 64

    Rain Showers

    • 39
    • 48

    Rain Showers Likely

    • 40
    • 53

    Partly Sunny

    • 45
    • 63

    Partly Sunny

    • 47
    • 66

    Partly Sunny

Today 30 Apr Foothills and Valleys of Central King County

Mostly sunny. Highs in the lower to mid 60s. Light wind.

Tonight 30 Apr Foothills and Valleys of Central King County

Mostly clear. Patchy fog late in the night. Lows in the lower to mid 40s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rattlesnake Mountain Temperature Statistics

April Temperature

Stampede Pass (24.2 miles)

  • Lowest 13 April, 2025

    27 °F

  • Average April

    38.6 °F

  • Highest 18 April, 2025

    62.1 °F

Climate (2020–Present)

Stampede Pass (24.2 miles)

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  • Average Low 2020–2025

    36.3 °F

  • Average 2020–2025

    41.5 °F

  • Average High 2020–2025

    48.3 °F
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