Charleston, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Charleston, a town in Wasatch County, Utah.
This Afternoon
45°F
Light Rain
Rain before 5pm. Mostly cloudy. High near 45, with temperatures falling to around 43 in the afternoon. West southwest wind 1 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Charleston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 45°F | Light Rain | 1 to 5 mph WSW | 89% |
| Tonight | 30°F | Partly Cloudy then Patchy Fog | 0 to 3 mph N | 12% |
| Thursday | 51°F | Patchy Fog then Partly Sunny | 0 to 5 mph W | 1% |
| Thursday Night | 29°F | Areas Of Fog | 0 to 5 mph NW | 3% |
| Friday | 49°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph NNW | 2% |
| Friday Night | 27°F | Mostly Clear | 0 to 3 mph N | 0% |
| Saturday | 55°F | Sunny | 2 mph N | 0% |
| Saturday Night | 30°F | Mostly Clear | 2 mph ENE | 0% |
| Sunday | 62°F | Sunny | 0 to 5 mph ESE | 0% |
| Sunday Night | 34°F | Mostly Clear | 1 to 6 mph SE | 0% |
| Monday | 62°F | Mostly Sunny | 0 to 3 mph ESE | 0% |
| Monday Night | 35°F | Mostly Cloudy | 2 mph SSE | 0% |
| Tuesday | 59°F | Mostly Sunny | 0 to 3 mph NW | 1% |
| Tuesday Night | 34°F | Partly Cloudy | 2 mph SE | 3% |
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.