Bonnie, IL Weather & Growing Conditions
Today
88°F
Sunny
Sunny, with a high near 88. Southeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Sunny | 2 mph SE | 0% |
| Tonight | 66°F | Mostly Clear | 2 mph SSE | 0% |
| Wednesday | 90°F | Sunny | 1 to 5 mph SSW | 1% |
| Wednesday Night | 71°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 2 to 6 mph S | 20% |
| Thursday | 86°F | Chance Showers And Thunderstorms | 3 mph SSW | 49% |
| Thursday Night | 72°F | Chance Showers And Thunderstorms | 2 mph S | 50% |
| Friday | 87°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 6 mph SW | 55% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 3 mph SSW | 47% |
| Saturday | 89°F | Chance Showers And Thunderstorms then Mostly Sunny | 3 mph SW | 27% |
| Saturday Night | 72°F | Mostly Clear | 3 mph SSW | 12% |
| Sunday | 91°F | Sunny | 3 to 8 mph SSW | 10% |
| Sunday Night | 75°F | Mostly Clear | 7 mph SSW | 8% |
| Monday | 94°F | Sunny | 7 to 13 mph SSW | 8% |
| Monday Night | 76°F | Mostly Clear | 9 to 13 mph SSW | 8% |
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 Aug 4, 2026.