Roselle, IL Weather & Growing Conditions
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 5 to 10 mph SSW | 1% |
| Tonight | 68°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph SW | 38% |
| Wednesday | 80°F | Showers And Thunderstorms Likely | 5 mph WSW | 73% |
| Wednesday Night | 64°F | Showers And Thunderstorms | 0 to 5 mph WNW | 87% |
| Thursday | 78°F | Rain Showers Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 63% |
| Thursday Night | 62°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 21% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph S | 4% |
| Friday Night | 65°F | Mostly Clear | 0 to 5 mph SSW | 7% |
| Saturday | 84°F | Mostly Sunny | 5 to 10 mph SW | 10% |
| Saturday Night | 69°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 20% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms | 5 to 15 mph SW | 20% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 43% |
| Monday | 85°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 43% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 5 to 10 mph WSW | 47% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Roselle, IL
Last spring frost
Apr 30
First fall frost
Oct 13
Growing season
163 days
Hardiness zone
5b
Explore more for Roselle, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Streamwood, Il (5.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.