Pierron, IL Weather & Growing Conditions
Tonight
71°F
Partly Cloudy
Partly cloudy, with a low around 71. Southeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Partly Cloudy | 6 mph SE | 9% |
| Saturday | 96°F | Mostly Sunny | 2 to 7 mph SW | 6% |
| Saturday Night | 72°F | Mostly Cloudy | 3 mph S | 2% |
| Sunday | 93°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 7 mph W | 19% |
| Sunday Night | 65°F | Chance Showers And Thunderstorms | 7 mph N | 51% |
| Monday | 80°F | Showers And Thunderstorms Likely | 6 to 12 mph NE | 63% |
| Monday Night | 59°F | Showers And Thunderstorms Likely | 6 to 13 mph NE | 63% |
| Tuesday | 72°F | Slight Chance Rain Showers then Partly Sunny | 12 mph N | 24% |
| Tuesday Night | 54°F | Mostly Cloudy | 5 to 12 mph N | 5% |
| Wednesday | 74°F | Mostly Sunny | 6 to 9 mph N | 3% |
| Wednesday Night | 54°F | Partly Cloudy | 2 to 8 mph N | 3% |
| Thursday | 76°F | Mostly Sunny | 2 to 8 mph N | 2% |
| Thursday Night | 57°F | Partly Cloudy | 2 to 7 mph N | 2% |
| Friday | 76°F | Mostly Sunny | 2 to 8 mph N | 4% |
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 Sep 19, 2026.