Sumner Weather Forecast

    • 51
    • 73

    Decreasing Clouds

    • 51
    • 70

    Cloudy

    • 50
    • 69

    Rain Likely

    • 50
    • 70

    Chance Rain

    • 50
    • 73

    Partly Sunny

    • 52
    • 77

    Mostly Sunny

Today 10 Sep Lowlands of Pierce and Southern King Counties

Mostly cloudy. Highs in the mid 60s to lower 70s. Light wind.

Tonight 10 Sep Lowlands of Pierce and Southern King Counties

Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 40s to mid 50s. Southwest wind to 10 Mph becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sumner Temperature Statistics

September Temperature

Tacoma / McChord Air Force Base (11.8 miles)

  • Lowest 5 September, 2026

    47.5 °F

  • Average September

    61.1 °F

  • Highest 8 September, 2026

    75.6 °F

Climate (2021–2026)

Tacoma / McChord Air Force Base (11.8 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    52.2 °F

  • Average High 2021–2026

    61.5 °F
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