La Grande Reservoir Weather Forecast
- 41
- 58
Mostly Cloudy
- 38
- 63
Slight Chance Thunderstorms
- 29
- 53
Mostly Sunny
- 31
- 53
Mostly Sunny
- 35
- 56
Mostly Sunny
- 37
- 59
Partly Sunny
- 34
- 55
Chance Rain/Snow
Today 5 Apr Southern Blue Mountains of Oregon
Mostly cloudy. Highs in the mid to upper 60s.
Tonight 5 Apr Southern Blue Mountains of Oregon
Mostly cloudy. Lows in the lower to mid 40s.
La Grande Reservoir Temperature Statistics
April Temperature
La Grande/Union County Airport (13.7 miles)
Lowest 3 April, 2026
28 °FAverage April
43.6 °FHighest 3 April, 2026
57.9 °F
Climate (2021–Present)
La Grande/Union County Airport (13.7 miles)
Average Low 2021–2026
38.3 °FAverage 2021–2026
50.6 °FAverage High 2021–2026
62.8 °F