Lake O' the Dalles Weather Forecast

    • 64
    • 81

    Mostly Cloudy

    • 61
    • 80

    Rain Showers

    • 49
    • 75

    Mostly Sunny

    • 58
    • 79

    Mostly Sunny

    • 55
    • 83

    Slight Chance Thunderstorms

    • 51
    • 75

    Chance Rain Showers

Today 7 Sep Polk

Mostly cloudy. Highs in the upper 70s. Southeast Winds 5 to 15 Mph.

Tonight 7 Sep Polk

Mostly cloudy. Chance of Thunderstorms in the Evening, then Showers and chance of Thunderstorms after midnight. Lows in the lower 60s. South Winds 10 to 20 Mph. Chance of precipitation 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake O' the Dalles Temperature Statistics

September Temperature

L O Simenstad Municipal Airport (5.6 miles)

  • Lowest 2 September, 2026

    64.9 °F

  • Average September

    75.9 °F

  • Highest 1 September, 2026

    88 °F

Climate (2021–2026)

L O Simenstad Municipal Airport (5.6 miles)

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  • Average Low 2021–2026

    37.2 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    57 °F
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