Altamont, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Altamont, a town in Duchesne County, Utah.
This Afternoon
45°F
Sunny
Sunny. High near 45, with temperatures falling to around 41 in the afternoon. Southeast wind around 3 mph.
7-day forecast for Altamont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 45°F | Sunny | 3 mph SE | 0% |
| Tonight | 30°F | Mostly Cloudy | 3 mph NNE | 3% |
| Wednesday | 44°F | Slight Chance Rain And Snow | 3 mph NW | 23% |
| Wednesday Night | 28°F | Slight Chance Light Rain then Partly Cloudy | 3 to 7 mph NNW | 23% |
| Thursday | 46°F | Mostly Sunny | 1 to 5 mph SE | 0% |
| Thursday Night | 29°F | Partly Cloudy | 1 to 6 mph NNW | 0% |
| Friday | 48°F | Sunny | 1 to 7 mph ESE | 1% |
| Friday Night | 29°F | Mostly Clear | 1 to 6 mph N | 0% |
| Saturday | 49°F | Sunny | 0 to 5 mph SE | 0% |
| Saturday Night | 31°F | Mostly Clear | 0 to 3 mph N | 0% |
| Sunday | 51°F | Sunny | 0 to 3 mph ENE | 0% |
| Sunday Night | 32°F | Partly Cloudy | 2 mph N | 0% |
| Monday | 52°F | Mostly Sunny | 2 mph ENE | 1% |
| Monday Night | 33°F | Mostly Cloudy | 0 to 3 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov) for Altamont (40.359, -110.288). Updated through the day.
Growing snapshot for Altamont
Last spring frost
May 31
First fall frost
Sep 23
Growing season
112 days
Hardiness zone
5b
More local growing data for Altamont: nearby ZIP 84001 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Altamont, Ut (2 mi from Altamont). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.