Altamont, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Altamont, a town in Duchesne County, Utah.
This Afternoon
65°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. High near 65, with temperatures falling to around 61 in the afternoon. West southwest wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Altamont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Showers And Thunderstorms | 5 mph WSW | 82% |
| Tonight | 42°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 2 to 6 mph NE | 85% |
| Saturday | 64°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 7 mph W | 38% |
| Saturday Night | 38°F | Partly Cloudy | 5 to 8 mph NW | 3% |
| Sunday | 64°F | Sunny | 6 mph WSW | 0% |
| Sunday Night | 40°F | Partly Cloudy | 5 mph N | 0% |
| Monday | 69°F | Mostly Sunny | 5 mph ENE | 0% |
| Monday Night | 44°F | Partly Cloudy | 5 mph NNW | 11% |
| Tuesday | 67°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 6 mph ENE | 45% |
| Tuesday Night | 43°F | Chance Showers And Thunderstorms | 5 mph NW | 41% |
| Wednesday | 68°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 mph E | 20% |
| Wednesday Night | 43°F | Mostly Clear | 3 mph N | 8% |
| Thursday | 70°F | Mostly Sunny | 5 mph N | 8% |
| Thursday Night | 45°F | Slight Chance Showers And Thunderstorms | 3 mph NNE | 17% |
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 Sep 19, 2026.