Hardin, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hardin, a village in Calhoun County, Illinois.
Overnight
66°F
Clear
Clear, with a low around 66. East wind around 2 mph.
7-day forecast for Hardin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Clear | 2 mph E | 0% |
| Tuesday | 88°F | Patchy Fog then Sunny | 3 mph S | 0% |
| Tuesday Night | 68°F | Mostly Clear | 5 mph S | 2% |
| Wednesday | 89°F | Mostly Sunny then Isolated Showers And Thunderstorms | 5 mph S | 24% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms | 5 mph S | 80% |
| Thursday | 85°F | Showers And Thunderstorms | 3 mph S | 80% |
| Thursday Night | 67°F | Partly Cloudy | 2 mph SE | 12% |
| Friday | 86°F | Partly Sunny | 2 mph SW | 10% |
| Friday Night | 69°F | Partly Cloudy then Chance Showers And Thunderstorms | 2 mph S | 27% |
| Saturday | 89°F | Chance Showers And Thunderstorms then Mostly Sunny | 3 mph S | 27% |
| Saturday Night | 72°F | Mostly Clear | 5 mph S | 6% |
| Sunday | 91°F | Sunny | 7 mph S | 3% |
| Sunday Night | 74°F | Mostly Clear | 6 mph S | 5% |
| Monday | 92°F | Mostly Sunny | 7 mph SW | 5% |
Forecast source: National Weather Service (api.weather.gov) for Hardin (39.159, -90.623). Updated through the day.
Growing snapshot for Hardin
Last spring frost
Apr 20
First fall frost
Oct 20
Growing season
181 days
Hardiness zone
6b
More local growing data for Hardin: nearby ZIP 62047 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Elsberry 1 S, Mo (8.7 mi from Hardin). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.