Bonnie, IL Weather & Growing Conditions
Overnight
57°F
Chance Rain Showers
A chance of rain showers before 5am. Mostly cloudy. Low around 57, with temperatures rising to around 59 overnight. South southwest wind around 12 mph. Chance of precipitation is 50%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Chance Rain Showers | 12 mph SSW | 47% |
| Wednesday | 66°F | Mostly Cloudy | 7 to 13 mph WSW | 11% |
| Wednesday Night | 44°F | Partly Cloudy | 5 mph WSW | 0% |
| Thursday | 68°F | Sunny | 3 to 10 mph WSW | 0% |
| Thursday Night | 45°F | Partly Cloudy | 3 mph WNW | 0% |
| Friday | 60°F | Partly Sunny | 3 to 13 mph NNW | 1% |
| Friday Night | 37°F | Partly Cloudy | 3 to 9 mph N | 0% |
| Saturday | 57°F | Mostly Sunny | 6 mph NNW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 2 mph NNW | 0% |
| Sunday | 60°F | Sunny | 1 to 8 mph NW | 0% |
| Sunday Night | 35°F | Clear | 2 mph NW | 1% |
| Monday | 65°F | Sunny | 0 to 6 mph WSW | 0% |
| Monday Night | 39°F | Clear | 2 mph SW | 1% |
| Tuesday | 69°F | Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bonnie, IL
Last spring frost
Apr 4
First fall frost
Oct 28
Growing season
206 days
Hardiness zone
6b
Explore more for Bonnie, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Benton 2 N, Il (10.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.