Altamont, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Altamont, a town in Duchesne County, Utah.
Overnight
55°F
Patchy Smoke
Patchy smoke. Mostly clear. Low around 55, with temperatures rising to around 58 overnight. Northwest wind around 8 mph.
7-day forecast for Altamont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Patchy Smoke | 8 mph NW | 0% |
| Tuesday | 89°F | Patchy Smoke | 6 to 16 mph WSW | 0% |
| Tuesday Night | 54°F | Patchy Smoke | 9 to 16 mph WNW | 0% |
| Wednesday | 89°F | Patchy Smoke | 6 to 14 mph WSW | 0% |
| Wednesday Night | 55°F | Partly Cloudy | 9 to 14 mph NW | 0% |
| Thursday | 91°F | Sunny | 3 to 8 mph WSW | 0% |
| Thursday Night | 59°F | Mostly Clear | 9 to 13 mph NW | 0% |
| Friday | 91°F | Sunny | 3 to 8 mph NNE | 1% |
| Friday Night | 61°F | Partly Cloudy | 7 to 12 mph NE | 0% |
| Saturday | 91°F | Sunny | 3 to 8 mph ESE | 2% |
| Saturday Night | 62°F | Partly Cloudy | 10 mph NW | 1% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 to 9 mph WSW | 17% |
| Sunday Night | 61°F | Partly Cloudy | 9 mph NW | 3% |
| Monday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 9 mph WSW | 24% |
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 Aug 4, 2026.