Rock Island State Park Weather Forecast

    • 51
    • 76

    Increasing Clouds

    • 55
    • 76

    Rain Showers

    • 46
    • 68

    Rain Showers

    • 45
    • 67

    Partly Sunny

    • 45
    • 67

    Partly Sunny

    • 47
    • 68

    Partly Sunny

Today 23 Sep Wenatchee Area

Partly cloudy. Highs in the upper 60s to mid 70s.

Tonight 23 Sep Wenatchee Area

Partly cloudy. Lows in the mid 40s to lower 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rock Island State Park Temperature Statistics

September Temperature

Wenatchee - Pangborn Memorial Airport (5.6 miles)

  • Lowest 14 September, 2026

    47.6 °F

  • Average September

    64.6 °F

  • Highest 1 September, 2026

    84.7 °F

Climate (2021–2026)

Wenatchee - Pangborn Memorial Airport (5.6 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.8 °F
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