Willowbrook, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Willowbrook, a village in Dupage County, Illinois.
Overnight
61°F
Rain Showers Likely
Rain showers likely. Cloudy. Low around 61, with temperatures rising to around 63 overnight. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Willowbrook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Rain Showers Likely | 15 mph S | 56% |
| Wednesday | 64°F | Scattered Rain Showers then Patchy Drizzle | 15 mph SSW | 34% |
| Wednesday Night | 49°F | Patchy Drizzle then Mostly Cloudy | 15 mph SW | 12% |
| Thursday | 57°F | Mostly Cloudy then Chance Rain Showers | 10 to 15 mph WSW | 35% |
| Thursday Night | 43°F | Chance Rain Showers | 10 to 15 mph NW | 53% |
| Friday | 51°F | Partly Sunny | 15 mph NNW | 14% |
| Friday Night | 37°F | Partly Cloudy | 5 to 10 mph NNW | 2% |
| Saturday | 51°F | Mostly Sunny | 5 mph NW | 1% |
| Saturday Night | 36°F | Mostly Clear | 5 mph W | 0% |
| Sunday | 56°F | Sunny | 5 to 10 mph W | 5% |
| Sunday Night | 38°F | Mostly Clear | 5 to 10 mph W | 1% |
| Monday | 60°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 5 to 10 mph WSW | 1% |
| Tuesday | 62°F | Sunny | 5 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Willowbrook (41.767, -87.942). Updated through the day.
Growing snapshot for Willowbrook
Last spring frost
Apr 19
First fall frost
Oct 22
Growing season
183 days
Hardiness zone
6a
More local growing data for Willowbrook: nearby ZIP 60527 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
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Bloomingdale
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Itasca
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Oak Brook
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West Chicago
Westmont
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Climate data from the nearest NOAA station, Little Red School Hse, Il (3.6 mi from Willowbrook). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.