Chelatchie Weather Forecast

    • 49
    • 78

    Becoming Sunny

    • 50
    • 80

    Sunny

    • 54
    • 76

    Rain Likely

    • 47
    • 67

    Chance Rain

    • 52
    • 77

    Mostly Sunny

    • 55
    • 81

    Chance Rain

Today 18 Sep South Washington Cascade Foothills

Sunny. Highs in the mid 70s. Northwest wind 5 to 10 Mph.

Tonight 18 Sep South Washington Cascade Foothills

Mostly clear. Lows in the upper 40s. North wind 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chelatchie Temperature Statistics

September Temperature

Pearson Airfield (24.9 miles)

  • Lowest 15 September, 2025

    48 °F

  • Average September

    67.9 °F

  • Highest 2 September, 2025

    90 °F

Climate (2020–Present)

Pearson Airfield (24.9 miles)

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  • Average Low 2020–2025

    46.4 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    64.5 °F
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