Lystair Lake Weather Forecast

    • 42
    • 58

    Rain Likely

    • 43
    • 67

    Chance Rain

    • 47
    • 79

    Partly Sunny

    • 48
    • 79

    Partly Sunny

    • 41
    • 66

    Partly Sunny

    • 39
    • 66

    Partly Sunny

    • 41
    • 66

    Partly Sunny

Today 25 May Middle Chehalis River Valley

Rain at Times in the Morning, then Showers and a slight chance of Thunderstorms in the afternoon. Rainfall Amounts a quarter to a half inch Possible, except higher Amounts possible in Thunderstorms. Highs in the mid 50s to lower 60s. South wind to 10 Mph becoming southwest around 10 Mph in the afternoon. Gusts to 20 Mph.

Tonight 25 May Middle Chehalis River Valley

Mostly cloudy. Rain likely in the Evening, then a chance of rain late in the evening. A slight chance of rain after midnight. Rainfall Amounts less than a tenth of an inch likely. Lows in the lower to mid 40s. Southwest wind to 10 Mph with Gusts to 20 Mph in the evening becoming light.

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Lystair Lake Temperature Statistics

May Temperature

Shelton, Shelton Sanderson Field (10.6 miles)

  • Lowest 17 May, 2026

    35.1 °F

  • Average May

    56.2 °F

  • Highest 3 May, 2026

    84 °F

Climate (2021–Present)

Shelton, Shelton Sanderson Field (10.6 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    61.3 °F
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