Rainbow Falls State Park Weather Forecast

    • 52
    • 75

    Decreasing Clouds

    • 52
    • 70

    Mostly Cloudy

    • 52
    • 71

    Mostly Cloudy

    • 55
    • 74

    Mostly Cloudy

    • 57
    • 74

    Chance Rain

    • 56
    • 73

    Chance Rain

Today 2 Aug Willapa and Black Hills

Mostly cloudy in the morning then becoming mostly sunny. Patchy fog in the morning. Highs in the upper 60s to mid 70s. Light wind becoming west to 10 Mph in the Afternoon, Gusts to 20 Mph in the afternoon.

Tonight 2 Aug Willapa and Black Hills

Mostly clear in the evening then becoming mostly cloudy. Lows in the upper 40s to mid 50s. West wind 10 to 15 Mph decreasing to 10 Mph or less after midnight.

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Rainbow Falls State Park Temperature Statistics

August Temperature

Chehalis-Centralia Airport (11.8 miles)

  • Lowest

  • Average August

  • Highest

Climate (2020–Present)

Chehalis-Centralia Airport (11.8 miles)

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  • Average Low 2020–2025

    43.6 °F
  • Average 2020–2025

    52 °F
  • Average High 2020–2025

    61.4 °F
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