Des Plaines, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Des Plaines, a city in Cook County, Illinois.
Tonight
62°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. East wind 10 to 15 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Des Plaines
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Mostly Cloudy then Chance Showers And Thunderstorms | 10 to 15 mph E | 54% |
| Saturday | 76°F | Showers And Thunderstorms Likely | 10 to 15 mph SE | 88% |
| Saturday Night | 64°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph NE | 81% |
| Sunday | 68°F | Showers And Thunderstorms | 10 to 15 mph NNE | 80% |
| Sunday Night | 56°F | Chance Rain Showers | 15 mph NE | 54% |
| Monday | 64°F | Chance Rain Showers | 15 to 20 mph ENE | 46% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 15 mph ENE | 32% |
| Tuesday | 63°F | Slight Chance Rain Showers | 10 to 15 mph NE | 22% |
| Tuesday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 15 mph NE | 20% |
| Wednesday | 65°F | Partly Sunny | 5 to 10 mph NE | 11% |
| Wednesday Night | 54°F | Mostly Cloudy | 5 to 10 mph NNE | 3% |
| Thursday | 68°F | Partly Sunny | 5 to 10 mph NNE | 7% |
| Thursday Night | 55°F | Mostly Cloudy | 5 mph NNE | 4% |
| Friday | 70°F | Mostly Sunny | 5 to 10 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Des Plaines (42.034, -87.901). Updated through the day.
Growing snapshot for Des Plaines
Last spring frost
Apr 16
First fall frost
Oct 28
Growing season
193 days
Hardiness zone
6a
More local growing data for Des Plaines: nearby ZIP 60016 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Chicago Ohare Intl Ap, Il (4.5 mi from Des Plaines). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.