Charleston, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Charleston, a town in Wasatch County, Utah.
Tonight
37°F
Mostly Clear
Mostly clear. Low around 37, with temperatures rising to around 41 overnight. East wind 1 to 5 mph.
7-day forecast for Charleston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 37°F | Mostly Clear | 1 to 5 mph E | 2% |
| Sunday | 72°F | Sunny | 1 to 6 mph WSW | 0% |
| Sunday Night | 37°F | Mostly Clear | 5 mph ENE | 0% |
| Monday | 77°F | Sunny | 0 to 7 mph N | 0% |
| Monday Night | 43°F | Partly Cloudy | 6 mph ENE | 5% |
| Tuesday | 75°F | Showers And Thunderstorms Likely | 1 to 7 mph SSE | 68% |
| Tuesday Night | 41°F | Chance Showers And Thunderstorms | 5 mph SE | 52% |
| Wednesday | 76°F | Sunny | 0 to 7 mph S | 12% |
| Wednesday Night | 42°F | Mostly Clear | 5 mph ESE | 4% |
| Thursday | 79°F | Sunny | 0 to 6 mph E | 3% |
| Thursday Night | 45°F | Mostly Clear | 6 mph SE | 4% |
| Friday | 78°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 7 mph SE | 12% |
| Friday Night | 44°F | Slight Chance Showers And Thunderstorms | 6 mph SSE | 17% |
| Saturday | 77°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 9 mph S | 26% |
Forecast source: National Weather Service (api.weather.gov) for Charleston (40.467, -111.459). Updated through the day.
Growing snapshot for Charleston
Last spring frost
May 31
First fall frost
Sep 11
Growing season
101 days
Hardiness zone
6a
More local growing data for Charleston: nearby ZIP 84049 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Snake Creek Powerhouse, Ut (2.9 mi from Charleston). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.