La Grande, OR Weather & Growing Conditions
Today
74°F
Sunny
Sunny. High near 74, with temperatures falling to around 72 in the afternoon. Northwest wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Sunny | 6 mph NW | 0% |
| Tonight | 44°F | Mostly Clear | 0 to 3 mph S | 0% |
| Sunday | 78°F | Sunny | 0 to 3 mph E | 0% |
| Sunday Night | 46°F | Clear | 1 mph S | 0% |
| Monday | 80°F | Sunny | 3 mph SE | 0% |
| Monday Night | 48°F | Mostly Clear | 3 mph W | 0% |
| Tuesday | 78°F | Sunny | 1 to 6 mph NW | 1% |
| Tuesday Night | 45°F | Mostly Clear | 1 to 6 mph W | 1% |
| Wednesday | 75°F | Sunny | 2 to 6 mph NW | 2% |
| Wednesday Night | 44°F | Partly Cloudy | 2 to 6 mph W | 2% |
| Thursday | 74°F | Mostly Sunny | 2 to 7 mph E | 3% |
| Thursday Night | 44°F | Partly Cloudy | 2 to 7 mph W | 4% |
| Friday | 69°F | Mostly Sunny | 3 to 8 mph NW | 10% |
| Friday Night | 40°F | Mostly Cloudy | 3 to 8 mph W | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for La Grande, OR
Last spring frost
May 6
First fall frost
Oct 1
Growing season
146 days
Hardiness zone
6b
Explore more for La Grande, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, La Grande, Or (4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.