Trenton, UT Weather & Growing Conditions
Overnight
44°F
Isolated Showers And Thunderstorms
Isolated showers and thunderstorms. Mostly cloudy. Low around 44, with temperatures rising to around 47 overnight. North northeast wind around 2 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 44°F | Isolated Showers And Thunderstorms | 2 mph NNE | 21% |
| Saturday | 67°F | Mostly Sunny then Scattered Showers And Thunderstorms | 1 to 6 mph WNW | 42% |
| Saturday Night | 38°F | Isolated Showers And Thunderstorms then Partly Cloudy | 1 to 5 mph NNW | 16% |
| Sunday | 72°F | Sunny | 3 mph NW | 0% |
| Sunday Night | 40°F | Mostly Clear | 3 mph E | 0% |
| Monday | 78°F | Sunny | 3 mph NNW | 0% |
| Monday Night | 45°F | Partly Cloudy | 3 mph ENE | 0% |
| Tuesday | 77°F | Mostly Sunny | 3 mph NW | 9% |
| Tuesday Night | 45°F | Chance Showers And Thunderstorms | 3 mph ESE | 29% |
| Wednesday | 78°F | Mostly Sunny | 1 to 5 mph S | 11% |
| Wednesday Night | 44°F | Mostly Clear | 3 mph ESE | 4% |
| Thursday | 81°F | Sunny | 3 mph E | 2% |
| Thursday Night | 47°F | Partly Cloudy | 3 mph ESE | 0% |
| Friday | 81°F | Mostly Sunny | 1 to 5 mph SSE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Trenton, UT
Last spring frost
May 17
First fall frost
Sep 18
Growing season
121 days
Hardiness zone
5b
Explore more for Trenton, UT: full frost dates · planting calendar · Utah frost dates
Climate data from the nearest NOAA station, Trenton, Ut (1.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.