Porter Weather Forecast

    • 50
    • 65

    Rain

    • 43
    • 59

    Rain

    • 40
    • 55

    Rain

    • 38
    • 53

    Rain

    • 36
    • 55

    Rain

    • 41
    • 55

    Chance Rain

Today 23 Oct Middle Chehalis River Valley

Mostly cloudy. A chance of rain in the Morning, then a slight chance of rain late in the morning. A chance of rain in the afternoon. Highs in the 60s. Light wind becoming south around 10 Mph in the afternoon.

Tonight 23 Oct Middle Chehalis River Valley

A slight chance of rain in the Evening, then a chance of rain in the late evening and early morning. Rain at Times in the morning. Rainfall Amounts a tenth to a quarter of an inch possible. Lows near 50. South wind 10 to 20 Mph. Gusts to 25 Mph increasing to 35 Mph after midnight.

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Porter Temperature Statistics

October Temperature

Olympia, Olympia Airport (19.3 miles)

  • Lowest 15 October, 2025

    28 °F

  • Average October

    51.4 °F

  • Highest 7 October, 2025

    75.9 °F

Climate (2020–Present)

Olympia, Olympia Airport (19.3 miles)

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  • Average Low 2020–2025

    41.6 °F

  • Average 2020–2025

    51.5 °F

  • Average High 2020–2025

    62.1 °F
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