Monument, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Monument, a city in Grant County, Oregon.
This Afternoon
60°F
Mostly Cloudy
Mostly cloudy. High near 60, with temperatures falling to around 55 in the afternoon. North wind around 5 mph.
7-day forecast for Monument
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 60°F | Mostly Cloudy | 5 mph N | 3% |
| Tonight | 32°F | Partly Cloudy | 2 mph SE | 1% |
| Wednesday | 59°F | Sunny | 1 mph N | 1% |
| Wednesday Night | 38°F | Chance Rain Showers | 1 mph S | 37% |
| Thursday | 58°F | Slight Chance Rain Showers then Mostly Sunny | 1 mph SW | 24% |
| Thursday Night | 34°F | Partly Cloudy | 0 to 5 mph SE | 6% |
| Friday | 61°F | Mostly Cloudy | 2 mph SE | 6% |
| Friday Night | 37°F | Partly Cloudy | 0 to 6 mph SE | 1% |
| Saturday | 70°F | Mostly Sunny | 3 mph SE | 1% |
| Saturday Night | 39°F | Mostly Cloudy | 2 to 16 mph SE | 9% |
| Sunday | 63°F | Partly Sunny | 0 to 7 mph SW | 12% |
| Sunday Night | 38°F | Mostly Cloudy | 2 mph NE | 10% |
| Monday | 63°F | Mostly Cloudy | 2 mph SE | 10% |
| Monday Night | 38°F | Mostly Cloudy | 0 to 3 mph N | 12% |
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 Nov 4, 2026.