Trenton, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trenton, a town in Cache County, Utah.
This Afternoon
73°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. High near 73, with temperatures falling to around 69 in the afternoon. Northeast wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Trenton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Showers And Thunderstorms | 8 mph NE | 86% |
| Tonight | 44°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 1 to 6 mph NNE | 68% |
| Saturday | 67°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 6 mph W | 53% |
| Saturday Night | 41°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 to 5 mph NNW | 19% |
| Sunday | 72°F | Sunny | 3 mph NNW | 0% |
| Sunday Night | 43°F | Mostly Clear | 3 mph E | 0% |
| Monday | 78°F | Sunny | 3 mph N | 0% |
| Monday Night | 47°F | Partly Cloudy | 3 mph ENE | 0% |
| Tuesday | 78°F | Mostly Sunny | 3 mph NNW | 4% |
| Tuesday Night | 47°F | Slight Chance Showers And Thunderstorms | 3 mph SE | 15% |
| Wednesday | 78°F | Sunny | 3 mph SSE | 6% |
| Wednesday Night | 46°F | Mostly Clear | 3 mph E | 4% |
| Thursday | 81°F | Sunny | 3 mph SE | 3% |
| Thursday Night | 49°F | Partly Cloudy | 5 mph ESE | 4% |
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 Sep 19, 2026.