Bonnie Brae, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bonnie Brae, a community in Will County, Illinois.
This Afternoon
74°F
Chance Rain Showers
A chance of rain showers. Partly sunny. High near 74, with temperatures falling to around 72 in the afternoon. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
7-day forecast for Bonnie Brae
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Chance Rain Showers | 10 mph E | 48% |
| Tonight | 63°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 10 mph E | 41% |
| Saturday | 78°F | Showers And Thunderstorms Likely | 5 to 10 mph SE | 79% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph NNE | 82% |
| Sunday | 70°F | Showers And Thunderstorms | 10 to 15 mph NNE | 82% |
| Sunday Night | 56°F | Rain Showers Likely | 15 mph NE | 67% |
| Monday | 65°F | Rain Showers Likely | 15 mph ENE | 57% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 15 mph ENE | 33% |
| Tuesday | 64°F | Chance Rain Showers | 10 to 15 mph NE | 25% |
| Tuesday Night | 52°F | Mostly Cloudy | 5 to 15 mph NE | 14% |
| Wednesday | 66°F | Partly Sunny | 10 mph NNE | 7% |
| Wednesday Night | 53°F | Mostly Cloudy | 5 to 10 mph NNE | 4% |
| Thursday | 69°F | Partly Sunny | 5 to 10 mph NNE | 6% |
| Thursday Night | 54°F | Mostly Cloudy | 5 mph NNE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Bonnie Brae (41.600, -88.034). Updated through the day.
Growing snapshot for Bonnie Brae
Last spring frost
Apr 20
First fall frost
Oct 22
Growing season
184 days
Hardiness zone
6a
More local growing data for Bonnie Brae: nearby ZIP 60441 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Romeoville Wfo, Il (1.9 mi from Bonnie Brae). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.