Lake Simtustus Weather Forecast

    • 53
    • 85

    Decreasing Clouds

    • 54
    • 88

    Mostly Sunny

    • 54
    • 87

    Sunny

    • 58
    • 91

    Sunny

    • 61
    • 95

    Sunny

    • 61
    • 97

    Hot

Today 18 Aug Central Oregon

Partly cloudy in the morning then clearing. Highs in the lower to mid 80s. Light Wind, becoming northwest 5 to 10 Mph with Gusts to around 20 Mph in the afternoon.

Tonight 18 Aug Central Oregon

Mostly clear. Lows in the upper 40s to lower 50s. Northwest wind 5 to 15 Mph.

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Lake Simtustus Temperature Statistics

August Temperature

Redmond Roberts Field (28 miles)

  • Lowest 8 August, 2025

    36.6 °F

  • Average August

    69.9 °F

  • Highest 11 August, 2025

    100.7 °F

Climate (2020–Present)

Redmond Roberts Field (28 miles)

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  • Average Low 2020–2025

    35.7 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    65.6 °F
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