La Grande, OR Weather & Growing Conditions
This Afternoon
50°F
Slight Chance Rain Showers
A slight chance of rain showers before 4pm. Cloudy. High near 50, with temperatures falling to around 45 in the afternoon. Southeast wind 5 to 9 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 50°F | Slight Chance Rain Showers | 5 to 9 mph SE | 15% |
| Tonight | 30°F | Mostly Cloudy | 1 to 5 mph S | 1% |
| Wednesday | 53°F | Sunny | 2 mph W | 0% |
| Wednesday Night | 34°F | Mostly Cloudy then Slight Chance Rain Showers | 2 mph SW | 43% |
| Thursday | 49°F | Chance Rain Showers then Partly Sunny | 1 to 7 mph W | 43% |
| Thursday Night | 32°F | Partly Cloudy | 1 to 7 mph S | 6% |
| Friday | 51°F | Partly Sunny | 6 to 12 mph S | 11% |
| Friday Night | 36°F | Mostly Cloudy | 6 to 12 mph SE | 5% |
| Saturday | 56°F | Mostly Sunny | 10 to 20 mph SE | 1% |
| Saturday Night | 39°F | Mostly Cloudy | 15 to 18 mph S | 10% |
| Sunday | 55°F | Partly Sunny | 3 to 16 mph SW | 12% |
| Sunday Night | 36°F | Mostly Cloudy | 3 mph SW | 11% |
| Monday | 55°F | Partly Sunny | 3 to 7 mph SE | 14% |
| Monday Night | 37°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph S | 16% |
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 Nov 4, 2026.