Pierron, IL Weather & Growing Conditions
Tonight
57°F
Rain
Rain and a slight chance of thunderstorms. Cloudy, with a low around 57. South wind 8 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Rain | 8 to 15 mph S | 96% |
| Wednesday | 64°F | Slight Chance Drizzle then Mostly Cloudy | 7 to 15 mph SW | 13% |
| Wednesday Night | 42°F | Partly Cloudy | 6 mph SW | 0% |
| Thursday | 66°F | Sunny | 5 to 12 mph W | 0% |
| Thursday Night | 42°F | Mostly Cloudy | 5 mph NW | 4% |
| Friday | 59°F | Mostly Cloudy | 5 to 12 mph NW | 7% |
| Friday Night | 37°F | Partly Cloudy | 2 to 7 mph N | 1% |
| Saturday | 56°F | Mostly Sunny | 5 mph NW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 1 mph NW | 0% |
| Sunday | 62°F | Sunny | 1 to 7 mph W | 6% |
| Sunday Night | 34°F | Mostly Clear | 3 mph NW | 5% |
| Monday | 66°F | Sunny | 1 to 9 mph W | 2% |
| Monday Night | 38°F | Mostly Clear | 3 mph SW | 1% |
| Tuesday | 68°F | Sunny | 2 to 6 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Pierron, IL
Last spring frost
Apr 6
First fall frost
Oct 29
Growing season
204 days
Hardiness zone
6b
Explore more for Pierron, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Carlyle Rsvr, Il (16.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.