Cornish, UT Weather & Growing Conditions
Tonight
45°F
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
A chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms. Mostly cloudy. Low around 45, with temperatures rising to around 47 overnight. North northeast wind 1 to 6 mph. Chance of precipitation is 70%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 1 to 6 mph NNE | 66% |
| Saturday | 66°F | Mostly Sunny then Showers And Thunderstorms Likely | 2 to 6 mph W | 55% |
| Saturday Night | 41°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 to 5 mph NNW | 18% |
| Sunday | 72°F | Sunny | 3 mph WNW | 0% |
| Sunday Night | 43°F | Mostly Clear | 3 mph ENE | 0% |
| Monday | 77°F | Sunny | 3 mph N | 0% |
| Monday Night | 47°F | Partly Cloudy | 3 mph E | 0% |
| Tuesday | 78°F | Mostly Sunny | 5 mph NNW | 4% |
| Tuesday Night | 47°F | Slight Chance Showers And Thunderstorms | 3 mph SE | 14% |
| Wednesday | 78°F | Sunny | 5 mph SSE | 6% |
| Wednesday Night | 47°F | Mostly Clear | 3 mph E | 4% |
| Thursday | 81°F | Sunny | 5 mph SSW | 3% |
| Thursday Night | 49°F | Partly Cloudy | 5 mph ESE | 4% |
| Friday | 81°F | Mostly Sunny | 6 mph SSE | 7% |
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 Sep 19, 2026.