Hardin, IL Weather & Growing Conditions
Overnight
65°F
Clear
Clear, with a low around 65. Southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 65°F | Clear | 3 mph SE | 0% |
| Tuesday | 88°F | Sunny | 3 mph S | 0% |
| Tuesday Night | 68°F | Mostly Clear | 5 mph SE | 1% |
| Wednesday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph S | 21% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms | 6 mph S | 74% |
| Thursday | 85°F | Showers And Thunderstorms Likely | 5 mph SW | 74% |
| Thursday Night | 66°F | Slight Chance Showers And Thunderstorms | 3 mph E | 17% |
| Friday | 85°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 3 mph SW | 15% |
| Friday Night | 67°F | Slight Chance Showers And Thunderstorms | 2 mph S | 28% |
| Saturday | 87°F | Chance Showers And Thunderstorms then Mostly Sunny | 3 mph S | 28% |
| Saturday Night | 71°F | Mostly Clear | 5 mph S | 6% |
| Sunday | 91°F | Sunny | 7 mph S | 3% |
| Sunday Night | 73°F | Mostly Clear | 6 mph S | 5% |
| Monday | 91°F | Mostly Sunny | 7 mph SW | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hardin, IL
Last spring frost
Apr 20
First fall frost
Oct 20
Growing season
181 days
Hardiness zone
6b
Explore more for Hardin, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Elsberry 1 S, Mo (8.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.