Howard A Hanson Reservoir Weather Forecast

    • 46
    • 72

    Chance Rain

    • 43
    • 56

    Rain

    • 42
    • 49

    Rain

    • 41
    • 58

    Mostly Sunny

    • 43
    • 63

    Mostly Sunny

    • 43
    • 63

    Partly Sunny

Today 20 Apr Foothills and Valleys of Pierce and Southern King Counties

Partly sunny. Highs in the lower to mid 70s. Light wind.

Tonight 20 Apr Foothills and Valleys of Pierce and Southern King Counties

Mostly cloudy in the evening then becoming partly cloudy. A slight chance of rain in the Evening, then a chance of rain late in the evening. A slight chance of rain after midnight. Lows near 50. West wind to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Howard A Hanson Reservoir Temperature Statistics

April Temperature

Seattle, Seattle-Tacoma International Airport (28 miles)

  • Lowest 15 April, 2026

    36.6 °F

  • Average April

    51.2 °F

  • Highest 6 April, 2026

    73.7 °F

Climate (2021–Present)

Seattle, Seattle-Tacoma International Airport (28 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    61.2 °F
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