Harvey, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harvey, a city in Cook County, Illinois.
Tonight
61°F
Rain Likely
Rain likely. Cloudy. Low around 61, with temperatures rising to around 63 overnight. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Harvey
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Rain Likely | 15 mph S | 74% |
| Wednesday | 65°F | Chance Rain then Mostly Cloudy | 15 mph SSW | 67% |
| Wednesday Night | 49°F | Mostly Cloudy | 15 mph SW | 12% |
| Thursday | 58°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph WSW | 20% |
| Thursday Night | 44°F | Chance Rain Showers | 5 to 10 mph WNW | 46% |
| Friday | 54°F | Chance Rain Showers | 10 mph N | 38% |
| Friday Night | 39°F | Slight Chance Rain then Mostly Cloudy | 5 to 10 mph NNW | 18% |
| Saturday | 52°F | Mostly Sunny | 5 mph WNW | 12% |
| Saturday Night | 36°F | Partly Cloudy | 0 to 5 mph WSW | 6% |
| Sunday | 57°F | Mostly Sunny | 5 to 10 mph W | 14% |
| Sunday Night | 38°F | Mostly Clear | 5 mph W | 11% |
| Monday | 60°F | Sunny | 5 to 10 mph WSW | 7% |
| Monday Night | 42°F | Mostly Clear | 5 to 10 mph WSW | 2% |
| Tuesday | 62°F | Mostly Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Harvey (41.608, -87.652). Updated through the day.
Growing snapshot for Harvey
Last spring frost
Apr 23
First fall frost
Oct 20
Growing season
179 days
Hardiness zone
6a
More local growing data for Harvey: nearby ZIP 60426 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Alsip
Arbury Hills
Arlington Heights
Barrington
Barrington Hills
Bedford Park
Bellwood
Berkeley
Berwyn
Blue Island
Bridgeview
Broadview
Brookfield
Burbank
Burnham
Calumet City
Calumet Park
Chicago
Chicago Heights
Chicago Ridge
Cicero
Country Club Hills
Countryside
Crestwood
Crete
Des Plaines
Dixmoor
Dolton
East Hazel Crest
Elk Grove Village
Climate data from the nearest NOAA station, Park Forest, Il (8.1 mi from Harvey). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.