Des Plaines, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Des Plaines, a city in Cook County, Illinois.
Today
86°F
Mostly Sunny
Mostly sunny, with a high near 86. Southwest wind around 10 mph.
7-day forecast for Des Plaines
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Mostly Sunny | 10 mph SW | 1% |
| Tonight | 69°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph SSW | 32% |
| Wednesday | 80°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph WSW | 72% |
| Wednesday Night | 65°F | Showers And Thunderstorms | 0 to 5 mph WNW | 89% |
| Thursday | 78°F | Rain Showers Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph NNE | 64% |
| Thursday Night | 63°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSE | 21% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph SSE | 4% |
| Friday Night | 66°F | Mostly Clear | 0 to 5 mph SSE | 7% |
| Saturday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 15% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 21% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms | 5 to 15 mph SW | 21% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 45% |
| Monday | 86°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 45% |
| Monday Night | 70°F | Chance Showers And Thunderstorms | 5 to 10 mph WSW | 48% |
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 Aug 4, 2026.