Monument, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Monument, a city in Grant County, Oregon.
Overnight
49°F
Smoke
Smoke. Mostly clear. Low around 49, with temperatures rising to around 51 overnight. Northeast wind around 2 mph.
7-day forecast for Monument
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Smoke | 2 mph NE | 0% |
| Tuesday | 93°F | Areas Of Smoke | 1 to 6 mph NE | 0% |
| Tuesday Night | 54°F | Areas Of Smoke | 0 to 6 mph NE | 0% |
| Wednesday | 100°F | Areas Of Smoke | 0 to 3 mph N | 0% |
| Wednesday Night | 58°F | Areas Of Smoke then Mostly Clear | 0 to 3 mph NW | 0% |
| Thursday | 105°F | Sunny | 0 to 7 mph SW | 0% |
| Thursday Night | 61°F | Mostly Clear | 0 to 7 mph NW | 0% |
| Friday | 101°F | Sunny | 0 to 8 mph W | 0% |
| Friday Night | 59°F | Mostly Clear | 1 to 8 mph NE | 0% |
| Saturday | 98°F | Sunny | 1 to 8 mph W | 0% |
| Saturday Night | 57°F | Mostly Clear | 1 to 8 mph NW | 0% |
| Sunday | 93°F | Sunny | 1 to 7 mph W | 0% |
| Sunday Night | 54°F | Mostly Clear | 1 to 7 mph N | 0% |
| Monday | 92°F | Sunny | 1 to 7 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Monument (44.821, -119.421). Updated through the day.
Growing snapshot for Monument
Last spring frost
May 9
First fall frost
Sep 27
Growing season
139 days
Hardiness zone
7a
More local growing data for Monument: nearby ZIP 97864 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Monument 2, Or (2.7 mi from Monument). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.