Summerville Weather Forecast

    • 34
    • 56

    Mostly Cloudy

    • 42
    • 56

    Rain Likely

    • 35
    • 48

    Rain

    • 27
    • 44

    Chance Rain

    • 26
    • 44

    Mostly Sunny

    • 28
    • 46

    Partly Sunny

Today 6 Feb Grande Ronde Valley

Mostly cloudy. Highs in the upper 50s. South wind 5 to 10 Mph.

Tonight 6 Feb Grande Ronde Valley

Mostly cloudy. Lows in the lower to mid 30s. Light wind.

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Summerville Temperature Statistics

February Temperature

La Grande/Union County Airport (13 miles)

  • Lowest 2 February, 2026

    21 °F

  • Average February

    42.5 °F

  • Highest 4 February, 2026

    60.1 °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

    50.5 °F

  • Average High 2021–2026

    62.6 °F
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