Sterling, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sterling, a town in Sanpete County, Utah.
This Afternoon
77°F
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms before 3pm, then a chance of showers and thunderstorms. Partly sunny. High near 77, with temperatures falling to around 70 in the afternoon. Southwest wind around 7 mph. Chance of precipitation is 60%.
7-day forecast for Sterling
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Scattered Showers And Thunderstorms | 7 mph SW | 58% |
| Tonight | 49°F | Chance Showers And Thunderstorms then Mostly Cloudy | 3 to 7 mph S | 62% |
| Saturday | 72°F | Sunny | 2 to 10 mph WSW | 6% |
| Saturday Night | 45°F | Mostly Clear | 2 to 9 mph NE | 0% |
| Sunday | 74°F | Sunny | 1 to 5 mph WSW | 0% |
| Sunday Night | 48°F | Partly Cloudy | 5 mph NE | 0% |
| Monday | 78°F | Mostly Sunny | 5 mph SW | 2% |
| Monday Night | 51°F | Chance Showers And Thunderstorms | 7 mph ESE | 27% |
| Tuesday | 75°F | Showers And Thunderstorms Likely | 6 mph SSE | 62% |
| Tuesday Night | 47°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph ESE | 30% |
| Wednesday | 77°F | Sunny then Slight Chance Showers And Thunderstorms | 5 mph S | 14% |
| Wednesday Night | 49°F | Mostly Clear | 6 mph E | 3% |
| Thursday | 79°F | Mostly Sunny | 5 mph SSE | 9% |
| Thursday Night | 51°F | Partly Cloudy | 7 mph SE | 12% |
Forecast source: National Weather Service (api.weather.gov) for Sterling (39.193, -111.690). Updated through the day.
Growing snapshot for Sterling
Last spring frost
May 11
First fall frost
Oct 6
Growing season
146 days
Hardiness zone
6a
More local growing data for Sterling: nearby ZIP 84643 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Centerfield
Ephraim
Fairview
Fayette
Fountain Green
Gunnison
Manti
Mayfield
Moroni
Mount Pleasant
Spring City
Wales
Climate data from the nearest NOAA station, Manti, Ut (9.4 mi from Sterling). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.