Summerville Weather Forecast

    • 64
    • 96

    Areas Smoke

    • 64
    • 97

    Patchy Smoke

    • 61
    • 99

    Chance Rain Showers

    • 57
    • 96

    Sunny

    • 55
    • 94

    Sunny

    • 53
    • 91

    Mostly Sunny

Today 21 Jul Grande Ronde Valley

Hot. Partly cloudy. Areas of smoke in the Morning, then patchy smoke in the afternoon. Highs in the mid to upper 90s. Light Wind, becoming northwest 5 to 10 Mph in the afternoon.

Tonight 21 Jul Grande Ronde Valley

Mostly cloudy in the evening then clearing. Patchy smoke. Lows in the lower to mid 60s. Northwest wind 5 to 10 Mph in the Evening, becoming light.

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  • Temperature Forecast NOAA

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Summerville Temperature Statistics

July Temperature

La Grande/Union County Airport (13 miles)

  • Lowest 2 July, 2026

    48 °F

  • Average July

    72.4 °F

  • Highest 15 July, 2026

    97 °F

Climate (2021–2026)

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

    62.7 °F
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