St. George, UT Weather & Growing Conditions
This Afternoon
61°F
Sunny
Sunny, with a high near 61. East southeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 61°F | Sunny | 2 mph ESE | 0% |
| Tonight | 45°F | Mostly Clear | 0 to 3 mph ENE | 2% |
| Wednesday | 63°F | Sunny | 0 to 5 mph NW | 2% |
| Wednesday Night | 43°F | Mostly Clear | 1 to 5 mph N | 0% |
| Thursday | 63°F | Mostly Sunny | 1 mph NE | 0% |
| Thursday Night | 45°F | Mostly Clear | 0 to 3 mph NNE | 0% |
| Friday | 65°F | Sunny | 1 to 5 mph NNE | 0% |
| Friday Night | 44°F | Mostly Clear | 1 to 9 mph NNE | 0% |
| Saturday | 67°F | Sunny | 0 to 6 mph NE | 0% |
| Saturday Night | 46°F | Clear | 0 to 3 mph NE | 0% |
| Sunday | 69°F | Sunny | 0 to 3 mph E | 0% |
| Sunday Night | 49°F | Partly Cloudy | 2 mph NE | 0% |
| Monday | 69°F | Mostly Sunny | 1 mph E | 2% |
| Monday Night | 50°F | Partly Cloudy | 0 mph | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. George, UT
Last spring frost
Mar 14
First fall frost
Nov 10
Growing season
239 days
Hardiness zone
8b
Explore more for St. George, UT: full frost dates · planting calendar · Utah frost dates
Climate data from the nearest NOAA station, St George, Ut (1.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.