Palmer Weather Forecast

    • 47
    • 65

    Chance Rain Showers

    • 47
    • 68

    Chance Rain

    • 51
    • 70

    Mostly Cloudy

    • 51
    • 67

    Mostly Cloudy

    • 50
    • 69

    Partly Sunny

    • 53
    • 75

    Partly Sunny

Today 4 Sep Foothills and Valleys of Pierce and Southern King Counties

Partly sunny. A slight chance of Thunderstorms early in the afternoon. A chance of Showers and a slight chance of Thunderstorms late in the afternoon. Highs near 70. Light wind.

Tonight 4 Sep Foothills and Valleys of Pierce and Southern King Counties

Mostly cloudy. A slight chance of rain in the evening. Lows in the mid 40s to lower 50s. Light wind.

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Palmer Temperature Statistics

September Temperature

Renton Municipal Airport (19.3 miles)

  • Lowest 1 September, 2026

    57.9 °F

  • Average September

    62.7 °F

  • Highest 1 September, 2026

    66.9 °F

Climate (2021–2026)

Renton Municipal Airport (19.3 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.2 °F
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