Summerville Weather Forecast

    • 57
    • 89

    Chance Rain Showers

    • 57
    • 93

    Mostly Sunny

    • 54
    • 95

    Mostly Sunny

    • 53
    • 92

    Mostly Sunny

    • 54
    • 93

    Mostly Sunny

    • 56
    • 94

    Mostly Sunny

Today 14 Jul Grande Ronde Valley

Mostly cloudy. Showers likely in the Morning, then a chance of Showers in the afternoon. Highs around 90. Light wind. Chance of precipitation 70 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 14 Jul Grande Ronde Valley

Partly cloudy. Lows in the upper 50s. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Summerville Temperature Statistics

July Temperature

La Grande/Union County Airport (13 miles)

  • Lowest 2 July, 2026

    48 °F

  • Average July

    70.2 °F

  • Highest 7 July, 2026

    95 °F

Climate (2021–2026)

La Grande/Union County Airport (13 miles)

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

  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    62.7 °F
Get WillyWeather+ to remove ads