Summerville Weather Forecast

    • 20
    • 39

    Increasing Clouds

    • 29
    • 41

    Rain/Snow

    • 24
    • 40

    Rain Likely

    • 24
    • 40

    Mostly Cloudy

    • 32
    • 42

    Chance Rain

    • 36
    • 46

    Rain Likely

Today 30 Nov Grande Ronde Valley

Mostly sunny. Highs in the upper 30s. Northwest wind 5 to 10 Mph in the Morning, becoming light.

Tonight 30 Nov Grande Ronde Valley

Partly cloudy with a 20 percent chance of snow. Highs in the upper 30s. Lows 19 to 26. Northwest wind 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summerville Temperature Statistics

November Temperature

La Grande/Union County Airport (13 miles)

  • Lowest 25 November, 2025

    21.9 °F

  • Average November

    45.9 °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

    50.4 °F

  • Average High 2020–2025

    62.4 °F
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