Lystair Lake Weather Forecast

    • 46
    • 63

    Rain

    • 45
    • 67

    Mostly Cloudy

    • 49
    • 69

    Slight Chance Rain

    • 47
    • 71

    Partly Sunny

    • 49
    • 74

    Partly Sunny

    • 50
    • 76

    Partly Sunny

Today 29 Sep Middle Chehalis River Valley

Rain at Times in the late morning and early Afternoon, then cloudy with a chance of rain late in the afternoon. Rainfall Amounts a quarter to a half inch possible. Highs in the upper 50s to mid 60s. Southwest wind 10 to 15 Mph with Gusts to 25 Mph.

Tonight 29 Sep Middle Chehalis River Valley

Mostly cloudy. Patchy fog in the morning. Lows in the mid to upper 40s. 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 27 September, 2026

    35.1 °F

  • Average September

    57.8 °F

  • Highest 9 September, 2026

    82.9 °F

Climate (2021–2026)

Shelton, Shelton Sanderson Field (10.6 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    61.2 °F
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