Harman US

Pierron, IL Weather & Growing Conditions

Today
60°F
Slight Chance Drizzle
A slight chance of drizzle before 1pm. Mostly cloudy, with a high near 60. West wind 8 to 14 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 60°F Slight Chance Drizzle 8 to 14 mph W 12%
Tonight 42°F Partly Cloudy 6 mph W 0%
Thursday 64°F Sunny 5 to 12 mph W 0%
Thursday Night 44°F Mostly Cloudy 5 mph NW 1%
Friday 57°F Partly Sunny 6 to 12 mph NW 3%
Friday Night 34°F Partly Cloudy 1 to 7 mph N 0%
Saturday 55°F Mostly Sunny 1 to 5 mph N 0%
Saturday Night 32°F Partly Cloudy 1 mph NW 0%
Sunday 60°F Sunny 1 to 7 mph NW 1%
Sunday Night 34°F Clear 2 mph NW 0%
Monday 65°F Sunny 0 to 6 mph SW 0%
Monday Night 38°F Clear 2 mph SW 0%
Tuesday 68°F Sunny 1 to 5 mph W 1%
Tuesday Night 40°F Mostly Clear 1 mph N 2%

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.