Cougar Park Weather Forecast

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    Rain Showers

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    Rain Showers

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    Rain Showers

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    Rain Showers

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    Chance Rain

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    Slight Chance Rain Showers

Today 29 Sep South Washington Cascade Foothills

Rain likely this Morning, then Showers this afternoon. Highs in the mid 60s. South wind 5 to 10 Mph. Chance of rain near 100 percent. Rainfall Amounts around a quarter of an inch.

Tonight 29 Sep South Washington Cascade Foothills

Mostly cloudy. Showers likely in the Evening, then a chance of rain after midnight. Lows in the upper 40s. South wind 5 to 10 Mph. Chance of rain 70 percent. Rainfall Amounts around a tenth of an inch.

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Cougar Park Temperature Statistics

September Temperature

Southwest Washington Regional Airport (28.6 miles)

  • Lowest 26 September, 2025

    44.1 °F

  • Average September

    64.4 °F

  • Highest 16 September, 2025

    91.9 °F

Climate (2020–Present)

Southwest Washington Regional Airport (28.6 miles)

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  • Average Low 2020–2025

    45 °F

  • Average 2020–2025

    52.8 °F

  • Average High 2020–2025

    62.3 °F
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