Sproul Reservoir Weather Forecast

    • 51
    • 88

    Mostly Sunny

    • 49
    • 85

    Mostly Sunny

    • 48
    • 80

    Mostly Sunny

    • 48
    • 78

    Partly Sunny

    • 47
    • 77

    Partly Sunny

    • 48
    • 78

    Mostly Sunny

Today 17 Jul Ochoco-John Day Highlands

Sunny, haze. Highs in the mid 80s to lower 90s. Gusts up to 20 Mph in the afternoon.

Tonight 17 Jul Ochoco-John Day Highlands

Mostly clear. Haze. Lows in the upper 40s to mid 50s. Northwest wind 5 to 15 Mph with Gusts to around 25 Mph in the Evening, becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sproul Reservoir Temperature Statistics

July Temperature

Grant County Regional Airport (15.5 miles)

  • Lowest 5 July, 2025

    45.7 °F

  • Average July

    73.1 °F

  • Highest 8 July, 2025

    97.9 °F

Climate (2020–Present)

Grant County Regional Airport (15.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    39.1 °F

  • Average 2020–2025

    50.5 °F

  • Average High 2020–2025

    62.3 °F
Get WillyWeather+ to remove ads