Charleston, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Charleston, a town in Wasatch County, Utah.
Overnight
30°F
Patchy Fog
Patchy fog between 2am and 5am, then patchy fog and a slight chance of rain. Mostly cloudy, with a low around 30. Southeast wind 1 to 5 mph. Chance of precipitation is 20%.
7-day forecast for Charleston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 30°F | Patchy Fog | 1 to 5 mph SE | 21% |
| Wednesday | 45°F | Patchy Fog then Light Rain Likely | 1 to 5 mph SW | 71% |
| Wednesday Night | 29°F | Slight Chance Light Rain then Areas Of Fog | 0 to 3 mph NW | 22% |
| Thursday | 51°F | Areas Of Fog then Partly Sunny | 0 to 5 mph NNW | 3% |
| Thursday Night | 28°F | Areas Of Fog | 0 to 3 mph NW | 12% |
| Friday | 51°F | Areas Of Fog then Mostly Sunny | 0 to 3 mph N | 6% |
| Friday Night | 27°F | Mostly Clear | 0 to 3 mph N | 0% |
| Saturday | 56°F | Sunny | 2 mph N | 0% |
| Saturday Night | 31°F | Mostly Clear | 2 mph ENE | 0% |
| Sunday | 63°F | Sunny | 0 to 5 mph ESE | 0% |
| Sunday Night | 34°F | Mostly Clear | 2 to 7 mph SE | 0% |
| Monday | 63°F | Mostly Sunny | 2 mph SSE | 0% |
| Monday Night | 35°F | Mostly Cloudy | 3 mph SE | 1% |
| Tuesday | 60°F | Mostly Sunny | 0 to 3 mph WSW | 1% |
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 Nov 4, 2026.