Grantsville, UT Weather & Growing Conditions
Today
83°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 83. North wind 7 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Patchy Smoke | 7 to 10 mph N | 0% |
| Tonight | 59°F | Areas Of Smoke | 5 to 10 mph NNE | 0% |
| Wednesday | 86°F | Patchy Smoke | 2 to 8 mph N | 0% |
| Wednesday Night | 62°F | Patchy Smoke then Mostly Clear | 5 to 9 mph E | 0% |
| Thursday | 90°F | Sunny | 3 to 7 mph SW | 0% |
| Thursday Night | 67°F | Mostly Clear | 5 to 9 mph ESE | 0% |
| Friday | 94°F | Sunny | 5 to 8 mph SSW | 0% |
| Friday Night | 70°F | Mostly Clear | 8 mph ESE | 0% |
| Saturday | 94°F | Sunny | 5 to 9 mph SW | 0% |
| Saturday Night | 71°F | Partly Cloudy | 6 to 10 mph SE | 0% |
| Sunday | 92°F | Mostly Sunny | 12 mph SSW | 2% |
| Sunday Night | 71°F | Partly Cloudy | 9 to 15 mph S | 2% |
| Monday | 90°F | Mostly Sunny | 14 mph SSW | 3% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 10 to 15 mph SSE | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Grantsville, UT
Last spring frost
May 2
First fall frost
Oct 14
Growing season
164 days
Hardiness zone
7a
Explore more for Grantsville, UT: full frost dates · planting calendar · Utah frost dates
Climate data from the nearest NOAA station, Grantsville 2W, Ut (23.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.