St. Charles, AR Weather & Growing Conditions
Tonight
75°F
Mostly Clear
Mostly clear, with a low around 75. South southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 75°F | Mostly Clear | 5 mph SSW | 0% |
| Sunday | 103°F | Mostly Sunny | 5 mph WSW | 1% |
| Sunday Night | 76°F | Partly Cloudy | 0 to 5 mph SW | 0% |
| Monday | 102°F | Mostly Sunny | 0 to 5 mph W | 6% |
| Monday Night | 73°F | Partly Cloudy | 5 mph NNW | 11% |
| Tuesday | 96°F | Sunny | 5 to 10 mph N | 10% |
| Tuesday Night | 67°F | Mostly Clear | 5 to 10 mph NNE | 7% |
| Wednesday | 91°F | Sunny | 5 to 10 mph NNE | 1% |
| Wednesday Night | 64°F | Mostly Clear | 5 to 10 mph NNE | 0% |
| Thursday | 91°F | Sunny | 5 to 10 mph NNE | 1% |
| Thursday Night | 65°F | Mostly Clear | 5 mph NE | 1% |
| Friday | 92°F | Sunny | 5 to 10 mph NE | 0% |
| Friday Night | 66°F | Mostly Clear | 5 mph NNE | 0% |
| Saturday | 92°F | Mostly Sunny | 5 mph NE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Charles, AR
Last spring frost
Mar 17
First fall frost
Nov 10
Growing season
238 days
Hardiness zone
8b
Explore more for St. Charles, AR: full frost dates · planting calendar · Arkansas frost dates
Climate data from the nearest NOAA station, Saint Charles, Ar (8.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.