St. Charles, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Charles, a town in Arkansas County, Arkansas.
Today
92°F
Sunny
Sunny, with a high near 92. Northeast wind 0 to 5 mph.
7-day forecast for St. Charles
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 92°F | Sunny | 0 to 5 mph NE | 0% |
| Tonight | 70°F | Mostly Clear | 0 to 5 mph E | 0% |
| Wednesday | 95°F | Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 74°F | Mostly Clear | 0 to 5 mph SE | 2% |
| Thursday | 96°F | Mostly Sunny | 0 to 5 mph SSW | 7% |
| Thursday Night | 77°F | Partly Cloudy | 0 to 5 mph SSE | 7% |
| Friday | 95°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 27% |
| Friday Night | 75°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 27% |
| Saturday | 95°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 27% |
| Saturday Night | 76°F | Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 27% |
| Sunday | 95°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 15% |
| Sunday Night | 76°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 15% |
| Monday | 95°F | Mostly Sunny | 0 to 5 mph SSW | 13% |
| Monday Night | 76°F | Partly Cloudy | 5 mph S | 13% |
Forecast source: National Weather Service (api.weather.gov) for St. Charles (34.373, -91.137). Updated through the day.
Growing snapshot for St. Charles
Last spring frost
Mar 17
First fall frost
Nov 10
Growing season
238 days
Hardiness zone
8b
More local growing data for St. Charles: nearby ZIP 72140 weather · frost dates · planting calendar · Arkansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Saint Charles, Ar (3.6 mi from St. Charles). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.