Altamont, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Altamont, a community in Klamath County, Oregon.
Tonight
28°F
Partly Cloudy
Partly cloudy. Low around 28, with temperatures rising to around 31 overnight. Southeast wind around 2 mph.
7-day forecast for Altamont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 28°F | Partly Cloudy | 2 mph SE | 4% |
| Wednesday | 49°F | Partly Sunny | 3 mph S | 6% |
| Wednesday Night | 30°F | Chance Light Rain then Mostly Cloudy | 2 mph NW | 35% |
| Thursday | 52°F | Mostly Sunny | 2 mph NW | 0% |
| Thursday Night | 28°F | Partly Cloudy | 1 mph NW | 0% |
| Friday | 58°F | Mostly Sunny | 2 mph SE | 0% |
| Friday Night | 31°F | Mostly Clear | 1 mph W | 0% |
| Saturday | 64°F | Mostly Sunny | 0 to 5 mph ESE | 0% |
| Saturday Night | 33°F | Partly Cloudy | 2 mph S | 0% |
| Sunday | 57°F | Partly Sunny | 0 to 3 mph SW | 1% |
| Sunday Night | 32°F | Mostly Cloudy | 2 mph NW | 2% |
| Monday | 56°F | Partly Sunny | 2 mph SSW | 5% |
| Monday Night | 30°F | Partly Cloudy | 2 mph WNW | 8% |
| Tuesday | 57°F | Mostly Sunny | 0 to 3 mph S | 14% |
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 Nov 4, 2026.