Hardin, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hardin, a village in Calhoun County, Illinois.
This Afternoon
73°F
Light Rain
Rain and a slight chance of thunderstorms. Cloudy. High near 73, with temperatures falling to around 66 in the afternoon. South wind around 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%.
7-day forecast for Hardin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Light Rain | 18 mph S | 96% |
| Tonight | 53°F | Light Rain Likely | 9 to 16 mph SW | 72% |
| Wednesday | 61°F | Chance Rain Showers then Mostly Cloudy | 9 to 14 mph SW | 12% |
| Wednesday Night | 45°F | Partly Cloudy | 7 mph SW | 0% |
| Thursday | 66°F | Sunny | 7 to 12 mph W | 5% |
| Thursday Night | 46°F | Chance Light Rain then Mostly Cloudy | 6 mph NW | 26% |
| Friday | 59°F | Partly Sunny | 6 to 9 mph NW | 8% |
| Friday Night | 42°F | Partly Cloudy | 2 to 6 mph N | 1% |
| Saturday | 58°F | Partly Sunny | 5 mph NW | 1% |
| Saturday Night | 39°F | Partly Cloudy | 2 mph W | 2% |
| Sunday | 60°F | Mostly Sunny | 2 to 9 mph W | 8% |
| Sunday Night | 38°F | Mostly Clear | 5 mph W | 4% |
| Monday | 62°F | Sunny | 2 to 7 mph SW | 3% |
| Monday Night | 40°F | Mostly Clear | 3 mph SW | 3% |
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 Nov 3, 2026.