Carol Stream, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Carol Stream, a village in Dupage County, Illinois.
This Afternoon
70°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. High near 70, with temperatures falling to around 68 in the afternoon. South wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Carol Stream
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Chance Rain Showers | 15 to 20 mph S | 51% |
| Tonight | 59°F | Rain Showers | 15 mph S | 88% |
| Wednesday | 62°F | Rain Showers Likely | 15 mph SSW | 58% |
| Wednesday Night | 48°F | Slight Chance Rain Showers | 15 mph SW | 17% |
| Thursday | 56°F | Chance Rain Showers | 10 to 15 mph WSW | 31% |
| Thursday Night | 43°F | Chance Rain Showers | 5 to 10 mph WNW | 37% |
| Friday | 51°F | Chance Rain Showers | 10 to 15 mph N | 26% |
| Friday Night | 36°F | Mostly Cloudy | 5 to 10 mph NNW | 7% |
| Saturday | 51°F | Mostly Sunny | 5 mph WNW | 7% |
| Saturday Night | 35°F | Partly Cloudy | 0 to 5 mph WSW | 5% |
| Sunday | 56°F | Mostly Sunny then Slight Chance Rain | 5 to 10 mph W | 15% |
| Sunday Night | 37°F | Mostly Clear | 5 mph WNW | 8% |
| Monday | 59°F | Sunny | 5 to 10 mph WSW | 3% |
| Monday Night | 41°F | Mostly Clear | 5 to 10 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for Carol Stream (41.920, -88.133). Updated through the day.
Growing snapshot for Carol Stream
Last spring frost
Apr 25
First fall frost
Oct 19
Growing season
174 days
Hardiness zone
5b
More local growing data for Carol Stream: nearby ZIP 60188 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, West Chicago Dupage Ap, Il (6 mi from Carol Stream). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.