Cornish, UT Weather & Growing Conditions
Overnight
48°F
Patchy Smoke
Patchy smoke. Mostly clear. Low around 48, with temperatures rising to around 50 overnight. North northwest wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Patchy Smoke | 6 mph NNW | 0% |
| Tuesday | 89°F | Patchy Smoke | 3 to 7 mph N | 0% |
| Tuesday Night | 50°F | Areas Of Smoke | 2 to 8 mph NNW | 0% |
| Wednesday | 92°F | Areas Of Smoke | 1 to 7 mph W | 0% |
| Wednesday Night | 54°F | Patchy Smoke then Mostly Clear | 2 to 7 mph N | 0% |
| Thursday | 97°F | Sunny | 2 to 6 mph NNW | 0% |
| Thursday Night | 60°F | Clear | 1 to 7 mph ESE | 0% |
| Friday | 100°F | Sunny | 1 to 8 mph SSE | 0% |
| Friday Night | 63°F | Mostly Clear | 2 to 8 mph NNE | 0% |
| Saturday | 99°F | Sunny | 2 to 8 mph NW | 0% |
| Saturday Night | 64°F | Mostly Clear | 2 to 9 mph NNE | 0% |
| Sunday | 98°F | Mostly Sunny | 2 to 10 mph SW | 3% |
| Sunday Night | 63°F | Mostly Clear | 3 to 10 mph NW | 2% |
| Monday | 96°F | Mostly Sunny | 2 to 12 mph SSW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cornish, UT
Last spring frost
May 17
First fall frost
Sep 18
Growing season
121 days
Hardiness zone
6a
Explore more for Cornish, UT: full frost dates · planting calendar · Utah frost dates
Climate data from the nearest NOAA station, Trenton, Ut (4.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.