Summerville Weather Forecast

    • 29
    • 47

    Chance Rain

    • 29
    • 49

    Partly Sunny

    • 33
    • 52

    Partly Sunny

    • 35
    • 52

    Chance Rain

    • 27
    • 49

    Chance Rain/Snow

    • 22
    • 45

    Slight Chance Snow

Today 20 Nov Grande Ronde Valley

Partly sunny. Patchy fog in the morning. Rain likely in the Morning, then a chance of rain in the afternoon. Highs in the upper 40s. Light wind. Chance of precipitation 60 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 20 Nov Grande Ronde Valley

Partly cloudy. Lows in the upper 20s to lower 30s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summerville Temperature Statistics

November Temperature

La Grande/Union County Airport (13 miles)

  • Lowest 8 November, 2025

    24.1 °F

  • Average November

    49.9 °F

  • Highest 1 November, 2025

    66.9 °F

Climate (2020–Present)

La Grande/Union County Airport (13 miles)

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  • Average Low 2020–2025

    38 °F

  • Average 2020–2025

    50.3 °F

  • Average High 2020–2025

    62.4 °F
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