Benson, IL Weather & Growing Conditions
Tonight
54°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. Low around 54, with temperatures rising to around 59 overnight. South wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Showers And Thunderstorms | 14 to 17 mph S | 96% |
| Wednesday | 60°F | Slight Chance Light Rain then Mostly Cloudy | 16 mph SW | 28% |
| Wednesday Night | 46°F | Mostly Cloudy | 13 mph SW | 6% |
| Thursday | 59°F | Mostly Cloudy | 9 to 15 mph WSW | 10% |
| Thursday Night | 42°F | Chance Light Rain | 5 to 8 mph NW | 32% |
| Friday | 54°F | Slight Chance Light Rain | 7 to 12 mph N | 20% |
| Friday Night | 35°F | Mostly Cloudy | 2 to 9 mph NNW | 4% |
| Saturday | 53°F | Mostly Sunny | 5 mph WNW | 3% |
| Saturday Night | 34°F | Partly Cloudy | 3 mph WSW | 3% |
| Sunday | 59°F | Sunny | 3 to 9 mph W | 14% |
| Sunday Night | 35°F | Mostly Clear | 6 mph W | 6% |
| Monday | 64°F | Sunny | 3 to 12 mph SW | 3% |
| Monday Night | 40°F | Mostly Clear | 5 to 8 mph WSW | 2% |
| Tuesday | 65°F | Sunny | 7 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Benson, IL
Last spring frost
Apr 26
First fall frost
Oct 17
Growing season
173 days
Hardiness zone
5b
Explore more for Benson, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Minonk, Il (6.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.