Mossyrock Weather Forecast

    • 45
    • 68

    Decreasing Clouds

    • 48
    • 76

    Mostly Sunny

    • 49
    • 76

    Mostly Sunny

    • 46
    • 73

    Partly Sunny

    • 46
    • 69

    Chance Rain

    • 43
    • 58

    Rain Likely

Today 20 May Foothills and Valleys of Thurston and Lewis Counties

Mostly cloudy in the morning then becoming mostly sunny. Patchy fog in the morning. Highs in the mid to upper 60s. Light wind.

Tonight 20 May Foothills and Valleys of Thurston and Lewis Counties

Partly cloudy. Lows in the mid to upper 40s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mossyrock Temperature Statistics

May Temperature

Chehalis-Centralia Airport (25.5 miles)

  • Lowest 17 May, 2026

    35.6 °F

  • Average May

    57.3 °F

  • Highest 3 May, 2026

    84.2 °F

Climate (2021–Present)

Chehalis-Centralia Airport (25.5 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    61.4 °F
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