Brookfield, IL Weather & Growing Conditions
This Afternoon
65°F
Slight Chance Rain Showers
A slight chance of rain showers and a slight chance of drizzle. Cloudy. High near 65, with temperatures falling to around 57 in the afternoon. Southwest wind around 15 mph, with gusts as high as 25 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Slight Chance Rain Showers | 15 mph SW | 10% |
| Tonight | 49°F | Slight Chance Rain Showers then Slight Chance Rain | 15 mph SW | 15% |
| Thursday | 55°F | Chance Rain | 10 to 15 mph WSW | 52% |
| Thursday Night | 41°F | Rain Likely then Cloudy | 10 mph NNW | 56% |
| Friday | 50°F | Partly Sunny | 10 to 15 mph NNW | 6% |
| Friday Night | 36°F | Partly Cloudy | 5 to 10 mph NNW | 2% |
| Saturday | 51°F | Sunny | 5 mph NW | 0% |
| Saturday Night | 36°F | Mostly Clear | 5 mph W | 0% |
| Sunday | 57°F | Sunny | 5 to 10 mph W | 1% |
| Sunday Night | 38°F | Mostly Clear | 5 mph W | 0% |
| Monday | 61°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 43°F | Mostly Clear | 5 to 10 mph WSW | 0% |
| Tuesday | 62°F | Sunny | 5 mph WNW | 0% |
| Tuesday Night | 42°F | Partly Cloudy | 0 to 5 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brookfield, IL
Last spring frost
Apr 11
First fall frost
Oct 31
Growing season
201 days
Hardiness zone
6a
Explore more for Brookfield, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Chicago Midway Ap, Il (5.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.