Tiger Mountain State Forest Weather Forecast

    • 47
    • 57

    Mostly Cloudy

    • 45
    • 57

    Partly Sunny

    • 47
    • 66

    Mostly Sunny

    • 48
    • 68

    Mostly Sunny

    • 49
    • 68

    Mostly Sunny

    • 47
    • 64

    Partly Sunny

Today 14 Sep Foothills and Valleys of Central King County

Mostly cloudy. Areas of drizzle in the morning. Highs in the 60s. South wind to 10 Mph in the morning becoming light.

Tonight 14 Sep Foothills and Valleys of Central King County

Partly cloudy in the evening then becoming mostly cloudy. Lows near 50. Light wind becoming north to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tiger Mountain State Forest Temperature Statistics

September Temperature

Renton Municipal Airport (11.8 miles)

  • Lowest 6 September, 2026

    51.1 °F

  • Average September

    62.3 °F

  • Highest 9 September, 2026

    79 °F

Climate (2021–2026)

Renton Municipal Airport (11.8 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.2 °F
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