Bonnie, IL Weather & Growing Conditions
Overnight
72°F
Clear
Clear. Low around 72, with temperatures rising to around 74 overnight. South wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 72°F | Clear | 2 mph S | 2% |
| Saturday | 98°F | Sunny | 2 to 8 mph SW | 4% |
| Saturday Night | 74°F | Partly Cloudy | 2 to 6 mph SSW | 2% |
| Sunday | 96°F | Mostly Sunny | 3 to 7 mph WSW | 0% |
| Sunday Night | 69°F | Mostly Cloudy then Chance Showers And Thunderstorms | 8 mph NNE | 43% |
| Monday | 84°F | Showers And Thunderstorms Likely | 6 to 12 mph NE | 62% |
| Monday Night | 61°F | Showers And Thunderstorms Likely | 7 to 13 mph NNE | 62% |
| Tuesday | 75°F | Chance Showers And Thunderstorms | 9 to 14 mph NNE | 35% |
| Tuesday Night | 56°F | Slight Chance Rain Showers then Partly Cloudy | 6 to 14 mph N | 17% |
| Wednesday | 76°F | Mostly Sunny | 7 to 12 mph N | 2% |
| Wednesday Night | 56°F | Partly Cloudy | 3 to 12 mph N | 0% |
| Thursday | 77°F | Mostly Sunny | 3 to 9 mph N | 2% |
| Thursday Night | 58°F | Partly Cloudy | 3 to 9 mph NNE | 3% |
| Friday | 79°F | Mostly Sunny | 3 to 10 mph NNE | 3% |
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 Sep 19, 2026.