Warrenville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Warrenville, a city in Dupage County, Illinois.
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. South southwest wind 5 to 10 mph.
7-day forecast for Warrenville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 5 to 10 mph SSW | 2% |
| Tonight | 67°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph SSW | 31% |
| Wednesday | 80°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph WSW | 72% |
| Wednesday Night | 64°F | Showers And Thunderstorms | 5 mph W | 88% |
| Thursday | 79°F | Rain Showers Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph ESE | 66% |
| Thursday Night | 62°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 24% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph S | 5% |
| Friday Night | 64°F | Partly Cloudy | 0 to 5 mph SSW | 9% |
| Saturday | 83°F | Mostly Sunny | 5 to 10 mph SW | 11% |
| Saturday Night | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 19% |
| Sunday | 85°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph SW | 19% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 40% |
| Monday | 85°F | Chance Rain Showers | 5 to 10 mph SSW | 40% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 5 to 10 mph WSW | 45% |
Forecast source: National Weather Service (api.weather.gov) for Warrenville (41.821, -88.187). Updated through the day.
Growing snapshot for Warrenville
Last spring frost
Apr 28
First fall frost
Oct 16
Growing season
169 days
Hardiness zone
5b
More local growing data for Warrenville: nearby ZIP 60555 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Lisle-Morton Arboretum, Il (6 mi from Warrenville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.