Calhoun, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Calhoun, a village in Richland County, Illinois.
Today
85°F
Sunny
Sunny, with a high near 85. East northeast wind around 3 mph.
7-day forecast for Calhoun
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 3 mph ENE | 0% |
| Tonight | 65°F | Mostly Clear | 2 mph ESE | 0% |
| Wednesday | 88°F | Sunny | 3 mph S | 0% |
| Wednesday Night | 68°F | Partly Cloudy | 3 mph S | 7% |
| Thursday | 86°F | Chance Rain Showers | 2 to 8 mph SSW | 36% |
| Thursday Night | 69°F | Showers And Thunderstorms Likely | 5 mph S | 58% |
| Friday | 85°F | Chance Showers And Thunderstorms | 2 to 7 mph SW | 42% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 3 mph SSW | 32% |
| Saturday | 86°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 2 to 6 mph SSW | 32% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph S | 22% |
| Sunday | 88°F | Sunny | 5 to 9 mph SSW | 11% |
| Sunday Night | 72°F | Mostly Clear | 8 mph SSW | 11% |
| Monday | 90°F | Sunny | 6 to 10 mph SSW | 10% |
| Monday Night | 73°F | Slight Chance Showers And Thunderstorms | 8 mph SSW | 18% |
Forecast source: National Weather Service (api.weather.gov) for Calhoun (38.651, -88.044). Updated through the day.
Growing snapshot for Calhoun
Last spring frost
Apr 15
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
6b
More local growing data for Calhoun: nearby ZIP 62452 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Olney 2S, Il (8.4 mi from Calhoun). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.