Summerville Weather Forecast

    • 24
    • 40

    Snow

    • 19
    • 35

    Snow

    • 20
    • 36

    Snow Likely

    • 21
    • 35

    Chance Snow

    • 29
    • 38

    Chance Snow

    • 32
    • 45

    Rain/Snow

Today 17 Feb Grande Ronde Valley

Mostly sunny. Snow Showers likely in the afternoon. Little or no snow accumulation. Highs in the lower 40s. Breezy. South wind 10 to 20 Mph with Gusts to around 30 Mph. Chance of precipitation 60 percent.

Tonight 17 Feb Grande Ronde Valley

A chance of snow Showers in the Evening, then snow Showers likely overnight. Snow accumulation of 1 to 2 Inches. Lows in the mid 20s. South wind 5 to 10 Mph. Gusts up to 25 Mph in the evening. Chance of precipitation 70 percent.

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Summerville Temperature Statistics

February Temperature

La Grande/Union County Airport (13 miles)

  • Lowest 2 February, 2026

    21 °F

  • Average February

    40.9 °F

  • Highest 5 February, 2026

    61 °F

Climate (2021–Present)

La Grande/Union County Airport (13 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    62.7 °F
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