Lystair Lake Weather Forecast

    • 54
    • 75

    Rain

    • 47
    • 70

    Rain Likely

    • 49
    • 73

    Mostly Sunny

    • 51
    • 84

    Mostly Sunny

    • 46
    • 73

    Chance Rain

    • 45
    • 72

    Mostly Cloudy

    • 47
    • 75

    Partly Sunny

Today 13 Sep Middle Chehalis River Valley

Mostly cloudy until late afternoon then becoming mostly sunny. Areas of fog in the morning. Highs in the 70s. Light wind becoming southwest to 10 Mph in the afternoon.

Tonight 13 Sep Middle Chehalis River Valley

Cloudy in the Evening, then a chance of rain late in the evening. Cloudy with rain likely after midnight. Patchy fog after midnight. Rainfall Amounts a quarter to a half inch possible. Lows in the lower to mid 50s. West wind to 10 Mph in the evening becoming light.

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Lystair Lake Temperature Statistics

September Temperature

Shelton, Shelton Sanderson Field (10.6 miles)

  • Lowest 8 September, 2025

    52 °F

  • Average September

    62.8 °F

  • Highest 3 September, 2025

    84 °F

Climate (2020–Present)

Shelton, Shelton Sanderson Field (10.6 miles)

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  • Average Low 2020–2025

    41.7 °F

  • Average 2020–2025

    51.1 °F

  • Average High 2020–2025

    61.2 °F
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