Riverton-Boulevard Park Weather Forecast

    • 55
    • 64

    Rain

    • 54
    • 69

    Mostly Cloudy

    • 53
    • 69

    Mostly Sunny

    • 55
    • 75

    Mostly Sunny

    • 56
    • 77

    Mostly Sunny

    • 57
    • 79

    Mostly Sunny

Today 13 Sep Lowlands of Pierce and Southern King Counties

Rain in the Morning, then a chance of rain early in the afternoon. A slight chance of rain late in the afternoon. Rainfall Amounts a half inch to one inch possible. Highs in the upper 50s to mid 60s. Southwest wind 10 to 15 Mph.

Tonight 13 Sep Lowlands of Pierce and Southern King Counties

Mostly cloudy. Lows in the lower to mid 50s. Southwest wind 10 to 15 Mph becoming south 10 to 20 Mph after midnight. Gusts to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Riverton-Boulevard Park Temperature Statistics

September Temperature

Boeing Field - King County International Airport (2.5 miles)

  • Lowest 5 September, 2026

    53.1 °F

  • Average September

    63.1 °F

  • Highest 9 September, 2026

    78.1 °F

Climate (2021–2026)

Boeing Field - King County International Airport (2.5 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    54.2 °F

  • Average High 2021–2026

    61.6 °F
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