West Chicago, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Chicago, a city in Dupage County, Illinois.
This Afternoon
69°F
Rain Likely
Rain likely and a slight chance of thunderstorms. Mostly cloudy. High near 69, with temperatures falling to around 67 in the afternoon. South wind around 15 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for West Chicago
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Rain Likely | 15 mph S | 56% |
| Tonight | 59°F | Rain | 15 mph SSE | 88% |
| Wednesday | 62°F | Rain Likely | 15 mph SSW | 55% |
| Wednesday Night | 47°F | Slight Chance Rain | 15 mph SW | 16% |
| Thursday | 56°F | Chance Rain | 10 to 15 mph WSW | 32% |
| Thursday Night | 42°F | Chance Rain | 5 to 10 mph WNW | 35% |
| Friday | 52°F | Chance Rain | 10 to 15 mph N | 25% |
| Friday Night | 35°F | Mostly Cloudy | 5 to 10 mph NNW | 5% |
| Saturday | 51°F | Mostly Sunny | 5 mph WNW | 6% |
| Saturday Night | 34°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 | 35°F | Mostly Clear | 5 mph WNW | 7% |
| Monday | 60°F | Sunny | 5 to 10 mph WSW | 3% |
| Monday Night | 39°F | Mostly Clear | 5 to 10 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for West Chicago (41.894, -88.221). Updated through the day.
Growing snapshot for West Chicago
Last spring frost
Apr 25
First fall frost
Oct 19
Growing season
174 days
Hardiness zone
5b
More local growing data for West Chicago: nearby ZIP 60185 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, West Chicago Dupage Ap, Il (2.2 mi from West Chicago). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.