Warren, IL Weather & Growing Conditions
Tonight
62°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy. Low around 62, with temperatures rising to around 64 overnight. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Chance Showers And Thunderstorms | 10 to 15 mph SE | 91% |
| Saturday | 76°F | Showers And Thunderstorms | 5 to 10 mph SE | 85% |
| Saturday Night | 60°F | Showers And Thunderstorms | 5 to 10 mph N | 84% |
| Sunday | 66°F | Rain Showers Likely | 15 mph NE | 55% |
| Sunday Night | 54°F | Chance Rain Showers | 15 mph NE | 44% |
| Monday | 62°F | Chance Rain Showers | 15 mph NE | 43% |
| Monday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 43% |
| Tuesday | 61°F | Chance Rain Showers | 10 to 15 mph NE | 31% |
| Tuesday Night | 47°F | Partly Cloudy | 5 to 10 mph NE | 9% |
| Wednesday | 64°F | Mostly Sunny | 5 to 10 mph NE | 4% |
| Wednesday Night | 49°F | Partly Cloudy | 5 mph NE | 2% |
| Thursday | 67°F | Mostly Sunny | 5 mph NE | 6% |
| Thursday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 6% |
| Friday | 68°F | Mostly Sunny | 5 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Warren, IL
Last spring frost
Apr 27
First fall frost
Oct 9
Growing season
165 days
Hardiness zone
5a
Explore more for Warren, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Stockton 3 Nne, Il (5.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.