Vernal, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Vernal, a city in Uintah County, Utah.
Overnight
58°F
Mostly Clear
Mostly clear, with a low around 58. North northwest wind around 10 mph.
7-day forecast for Vernal
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Mostly Clear | 10 mph NNW | 0% |
| Tuesday | 96°F | Patchy Smoke | 5 to 10 mph SSW | 0% |
| Tuesday Night | 57°F | Mostly Clear | 5 to 15 mph WNW | 0% |
| Wednesday | 94°F | Sunny then Patchy Smoke | 0 to 5 mph SSE | 0% |
| Wednesday Night | 58°F | Mostly Clear | 5 to 15 mph N | 0% |
| Thursday | 96°F | Sunny | 0 to 5 mph S | 0% |
| Thursday Night | 62°F | Mostly Clear | 5 to 15 mph NE | 0% |
| Friday | 98°F | Sunny | 0 to 5 mph SSW | 0% |
| Friday Night | 64°F | Mostly Clear | 5 to 10 mph WNW | 0% |
| Saturday | 99°F | Sunny | 0 to 5 mph S | 0% |
| Saturday Night | 66°F | Partly Cloudy | 5 to 10 mph NW | 0% |
| Sunday | 97°F | Mostly Sunny | 0 to 10 mph SW | 9% |
| Sunday Night | 64°F | Partly Cloudy | 0 to 10 mph NW | 3% |
| Monday | 97°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph SSW | 13% |
Forecast source: National Weather Service (api.weather.gov) for Vernal (40.452, -109.538). Updated through the day.
Growing snapshot for Vernal
Last spring frost
May 6
First fall frost
Oct 7
Growing season
153 days
Hardiness zone
5b
More local growing data for Vernal: nearby ZIP 84078 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Vernal Municipal Ap, Ut (1.6 mi from Vernal). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.