Benton, IL Weather & Growing Conditions
Tonight
72°F
Slight Chance Showers And Thunderstorms then Partly Cloudy
A slight chance of showers and thunderstorms before 10pm. Partly cloudy. Low around 72, with temperatures rising to around 74 overnight. Southeast wind around 2 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 72°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 mph SE | 24% |
| Saturday | 99°F | Sunny | 2 to 8 mph SW | 5% |
| Saturday Night | 73°F | Partly Cloudy | 5 mph SSW | 2% |
| Sunday | 98°F | Mostly Sunny | 3 to 9 mph W | 12% |
| Sunday Night | 70°F | Mostly Cloudy then Chance Showers And Thunderstorms | 6 mph NNE | 25% |
| Monday | 88°F | Chance Showers And Thunderstorms | 3 to 12 mph NNE | 47% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 6 to 13 mph NNE | 47% |
| Tuesday | 76°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 8 to 14 mph NNE | 23% |
| Tuesday Night | 57°F | Partly Cloudy | 5 to 14 mph NNE | 6% |
| Wednesday | 77°F | Mostly Sunny | 7 to 12 mph N | 2% |
| Wednesday Night | 56°F | Partly Cloudy | 3 to 10 mph NNE | 2% |
| Thursday | 77°F | Mostly Sunny | 3 to 10 mph NNE | 2% |
| Thursday Night | 58°F | Partly Cloudy | 3 to 9 mph NNE | 2% |
| Friday | 78°F | Mostly Sunny | 3 to 10 mph NNE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Benton, IL
Last spring frost
Apr 4
First fall frost
Oct 28
Growing season
206 days
Hardiness zone
7a
Explore more for Benton, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Benton 2 N, Il (1.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.