Goldendale Observatory State Park Weather Forecast

    • 59
    • 86

    Decreasing Clouds

    • 59
    • 87

    Mostly Sunny

    • 59
    • 90

    Mostly Sunny

    • 56
    • 87

    Mostly Sunny

    • 54
    • 83

    Mostly Sunny

    • 58
    • 87

    Mostly Sunny

    • 62
    • 90

    Mostly Sunny

Today 27 Aug Simcoe Highlands

Mostly cloudy. A chance of rain Showers in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Highs in the 80s. Northwest wind 5 to 15 Mph in the afternoon. Chance of precipitation 40 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 27 Aug Simcoe Highlands

Mostly cloudy with a 20 percent chance of Showers and Thunderstorms in the Evening, then mostly clear overnight. Haze through the night. Lows in the mid 50s to lower 60s. Gusts up to 20 Mph in the evening.

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Goldendale Observatory State Park Temperature Statistics

August Temperature

The Dalles Municipal Airport (22.4 miles)

  • Lowest 8 August, 2025

    53.7 °F
  • Average August

    75.9 °F
  • Highest 11 August, 2025

    105.7 °F

Climate (2020–Present)

The Dalles Municipal Airport (22.4 miles)

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  • Average Low 2020–2025

    46 °F
  • Average 2020–2025

    56.2 °F
  • Average High 2020–2025

    66.8 °F
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