St. Charles, AR Weather & Growing Conditions
Tonight
74°F
Clear
Clear, with a low around 74. West southwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 74°F | Clear | 0 to 5 mph WSW | 0% |
| Saturday | 103°F | Sunny | 0 to 5 mph WSW | 1% |
| Saturday Night | 75°F | Clear | 0 to 5 mph SW | 0% |
| Sunday | 102°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 76°F | Partly Cloudy | 0 to 5 mph SW | 0% |
| Monday | 101°F | Mostly Sunny | 0 to 5 mph WNW | 8% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 20% |
| Tuesday | 95°F | Mostly Sunny | 5 to 10 mph N | 8% |
| Tuesday Night | 67°F | Partly Cloudy | 5 to 10 mph NNE | 8% |
| Wednesday | 91°F | Sunny | 5 to 10 mph NNE | 3% |
| Wednesday Night | 65°F | Mostly Clear | 5 to 10 mph NNE | 3% |
| Thursday | 90°F | Sunny | 5 to 10 mph NNE | 3% |
| Thursday Night | 64°F | Mostly Clear | 5 to 10 mph NE | 3% |
| Friday | 90°F | Mostly Sunny | 5 to 10 mph NNE | 3% |
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 (3.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.