Monument, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Monument, a city in Grant County, Oregon.
Today
59°F
Sunny
Sunny. High near 59, with temperatures falling to around 54 in the afternoon. East wind around 1 mph.
7-day forecast for Monument
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 59°F | Sunny | 1 mph E | 1% |
| Tonight | 37°F | Chance Rain Showers | 0 mph | 43% |
| Thursday | 57°F | Chance Rain Showers then Mostly Sunny | 1 mph SW | 25% |
| Thursday Night | 32°F | Mostly Clear | 2 mph E | 0% |
| Friday | 61°F | Partly Sunny | 1 mph E | 0% |
| Friday Night | 36°F | Partly Cloudy | 0 to 3 mph SE | 0% |
| Saturday | 70°F | Mostly Sunny | 2 mph SE | 0% |
| Saturday Night | 38°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 16 mph SE | 15% |
| Sunday | 59°F | Slight Chance Rain Showers then Partly Sunny | 0 to 3 mph SW | 15% |
| Sunday Night | 35°F | Mostly Cloudy | 2 mph NE | 3% |
| Monday | 61°F | Partly Sunny | 2 mph E | 5% |
| Monday Night | 37°F | Mostly Cloudy | 0 to 3 mph SE | 14% |
| Tuesday | 62°F | Slight Chance Rain Showers | 2 mph S | 15% |
| Tuesday Night | 39°F | Slight Chance Rain Showers | 0 to 14 mph SE | 18% |
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.