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.
Summerville Temperature Statistics
November Temperature
La Grande/Union County Airport (13 miles)
Lowest 25 November, 2025
21.9 °FAverage November
45.9 °FHighest 1 November, 2025
66.9 °F
Climate (2020–Present)
La Grande/Union County Airport (13 miles)
Average Low 2020–2025
38 °FAverage 2020–2025
50.4 °FAverage High 2020–2025
62.4 °F