Altamont, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Altamont, a community in Klamath County, Oregon.
Tonight
41°F
Clear
Clear. Low around 41, with temperatures rising to around 44 overnight. Northeast wind around 1 mph.
7-day forecast for Altamont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 41°F | Clear | 1 mph NE | 0% |
| Saturday | 77°F | Sunny | 0 to 5 mph SSE | 0% |
| Saturday Night | 41°F | Mostly Clear | 0 to 5 mph N | 0% |
| Sunday | 80°F | Sunny | 1 to 5 mph N | 0% |
| Sunday Night | 44°F | Partly Cloudy | 0 to 5 mph NW | 0% |
| Monday | 82°F | Sunny | 0 to 5 mph NW | 0% |
| Monday Night | 44°F | Mostly Clear | 0 to 5 mph NNW | 0% |
| Tuesday | 81°F | Sunny | 0 to 8 mph WSW | 0% |
| Tuesday Night | 42°F | Mostly Clear | 0 to 8 mph NW | 0% |
| Wednesday | 80°F | Sunny | 0 to 7 mph W | 0% |
| Wednesday Night | 41°F | Mostly Clear | 0 to 7 mph NW | 0% |
| Thursday | 79°F | Sunny | 0 to 8 mph WSW | 0% |
| Thursday Night | 41°F | Partly Cloudy | 0 to 8 mph NW | 1% |
| Friday | 74°F | Mostly Sunny | 0 to 10 mph WNW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Altamont (42.198, -121.725). Updated through the day.
Growing snapshot for Altamont
Last spring frost
Jun 9
First fall frost
Sep 18
Growing season
99 days
Hardiness zone
6b
More local growing data for Altamont: nearby ZIP 97603 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Beatty
Beaver Marsh
Bly
Bonanza
Chemult
Chiloquin
Crescent
Crescent Lake
Falcon Heights
Fort Klamath
Gilchrist
Keno
Klamath Falls
Malin
Merrill
Oregon Shores
Rocky Point
Running Y Ranch
Sprague River
Climate data from the nearest NOAA station, Klamath Falls Intl Ap, Or (3.2 mi from Altamont). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.