Summerville Weather Forecast

    • 29
    • 39

    Snow Likely

    • 41
    • 46

    Rain/Snow

    • 41
    • 48

    Rain

    • 37
    • 52

    Rain/Snow

    • 29
    • 46

    Chance Snow

    • 38
    • 50

    Chance Rain/Snow

    • 42
    • 63

    Chance Rain

Today 10 Mar Grande Ronde Valley

Partly sunny with a 50 percent chance of snow. Highs in the lower 40s. West wind 5 to 15 Mph. Gusts up to 20 Mph increasing to 30 Mph in the afternoon.

Tonight 10 Mar Grande Ronde Valley

Mostly cloudy. A chance of snow. Lows in the upper 20s. South wind 5 to 10 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summerville Temperature Statistics

March Temperature

La Grande/Union County Airport (13 miles)

  • Lowest 3 March, 2026

    21.9 °F

  • Average March

    45 °F

  • Highest 7 March, 2026

    64 °F

Climate (2021–Present)

La Grande/Union County Airport (13 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    62.8 °F
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