Cedarville, IL Weather & Growing Conditions
Tonight
61°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 10pm and 2am, then showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy. Low around 61, with temperatures rising to around 63 overnight. East wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 83% |
| Saturday | 77°F | Showers And Thunderstorms | 5 to 10 mph S | 88% |
| Saturday Night | 60°F | Showers And Thunderstorms | 5 to 10 mph NE | 76% |
| Sunday | 68°F | Rain Showers Likely | 15 mph NE | 58% |
| Sunday Night | 53°F | Chance Rain Showers | 15 mph NE | 44% |
| Monday | 64°F | Chance Rain Showers | 15 mph NE | 43% |
| Monday Night | 48°F | Chance Rain Showers | 10 to 15 mph NE | 43% |
| Tuesday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 29% |
| Tuesday Night | 46°F | Partly Cloudy | 5 to 15 mph NE | 9% |
| Wednesday | 66°F | Mostly Sunny | 5 to 10 mph NE | 5% |
| Wednesday Night | 48°F | Partly Cloudy | 5 to 10 mph NE | 2% |
| Thursday | 68°F | Mostly Sunny | 5 mph NE | 5% |
| Thursday Night | 50°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Friday | 70°F | Mostly Sunny | 5 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cedarville, IL
Last spring frost
Apr 26
First fall frost
Oct 13
Growing season
169 days
Hardiness zone
5a
Explore more for Cedarville, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Freeport Waste Wtp, Il (5.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.