Porter Weather Forecast

    • 37
    • 61

    Decreasing Clouds

    • 42
    • 72

    Mostly Sunny

    • 43
    • 76

    Partly Sunny

    • 43
    • 68

    Mostly Cloudy

    • 46
    • 75

    Mostly Sunny

    • 50
    • 83

    Mostly Sunny

Today 28 Apr Middle Chehalis River Valley

Mostly cloudy. A chance of rain in the Morning, then a slight chance of rain in the late morning and early afternoon. Highs in the mid 50s to lower 60s. Light wind becoming west around 10 Mph in the afternoon.

Tonight 28 Apr Middle Chehalis River Valley

Mostly clear. Lows in the mid 30s to lower 40s. West wind to 10 Mph in the evening becoming light.

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Porter Temperature Statistics

April Temperature

Olympia, Olympia Airport (19.3 miles)

  • Lowest 16 April, 2026

    27.6 °F

  • Average April

    49.1 °F

  • Highest 19 April, 2026

    77 °F

Climate (2021–Present)

Olympia, Olympia Airport (19.3 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    62.2 °F
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