Boulder, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Boulder, a town in Garfield County, Utah.
This Afternoon
47°F
Sunny
Sunny. High near 47, with temperatures falling to around 45 in the afternoon. South southwest wind around 3 mph.
7-day forecast for Boulder
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 47°F | Sunny | 3 mph SSW | 0% |
| Tonight | 35°F | Mostly Clear | 2 mph WSW | 5% |
| Wednesday | 46°F | Slight Chance Light Snow then Sunny | 3 mph W | 15% |
| Wednesday Night | 32°F | Mostly Clear | 5 mph NNW | 0% |
| Thursday | 48°F | Sunny | 0 to 3 mph N | 0% |
| Thursday Night | 34°F | Partly Cloudy | 2 mph NNW | 0% |
| Friday | 50°F | Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 35°F | Mostly Clear | 0 to 3 mph N | 0% |
| Saturday | 53°F | Sunny | 0 to 5 mph NNE | 0% |
| Saturday Night | 38°F | Clear | 1 mph NNW | 0% |
| Sunday | 53°F | Sunny | 0 to 3 mph NNW | 0% |
| Sunday Night | 39°F | Mostly Clear | 0 mph | 0% |
| Monday | 53°F | Mostly Sunny | 0 to 3 mph N | 3% |
| Monday Night | 40°F | Partly Cloudy | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov) for Boulder (37.923, -111.432). Updated through the day.
Growing snapshot for Boulder
Last spring frost
May 4
First fall frost
Oct 14
Growing season
160 days
Hardiness zone
7a
More local growing data for Boulder: nearby ZIP 84716 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Boulder, Ut (3 mi from Boulder). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.