Trenton, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trenton, a town in Cache County, Utah.
Overnight
48°F
Patchy Smoke
Patchy smoke. Mostly clear. Low around 48, with temperatures rising to around 50 overnight. North northwest wind around 5 mph.
7-day forecast for Trenton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Patchy Smoke | 5 mph NNW | 0% |
| Tuesday | 90°F | Patchy Smoke | 3 to 7 mph N | 0% |
| Tuesday Night | 50°F | Areas Of Smoke | 2 to 7 mph NNW | 0% |
| Wednesday | 92°F | Areas Of Smoke | 1 to 7 mph WNW | 0% |
| Wednesday Night | 54°F | Patchy Smoke then Mostly Clear | 2 to 6 mph SSE | 0% |
| Thursday | 97°F | Sunny | 1 to 6 mph NE | 0% |
| Thursday Night | 59°F | Clear | 1 to 6 mph ESE | 0% |
| Friday | 100°F | Sunny | 1 to 7 mph SSE | 0% |
| Friday Night | 62°F | Mostly Clear | 2 to 8 mph N | 0% |
| Saturday | 100°F | Sunny | 1 to 7 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 9 mph SE | 2% |
| Monday | 97°F | Mostly Sunny | 2 to 10 mph SSW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Trenton (41.914, -111.936). Updated through the day.
Growing snapshot for Trenton
Last spring frost
May 17
First fall frost
Sep 18
Growing season
121 days
Hardiness zone
5b
More local growing data for Trenton: nearby ZIP 84338 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Amalga
Avon
Benson
Cache
Clarkston
Cornish
Hyde Park
Hyrum
Lewiston
Logan
Mendon
Millville
Newton
Nibley
North Logan
Paradise
Peter
Providence
Richmond
River Heights
Smithfield
Wellsville
Climate data from the nearest NOAA station, Trenton, Ut (1.2 mi from Trenton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.