Toulon, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Toulon, a city in Stark County, Illinois.
Overnight
68°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South southeast wind around 7 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Toulon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Slight Chance Showers And Thunderstorms | 7 mph SSE | 20% |
| Saturday | 83°F | Chance Showers And Thunderstorms | 8 mph SE | 51% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely | 5 mph WSW | 88% |
| Sunday | 72°F | Showers And Thunderstorms Likely | 5 to 16 mph NNE | 72% |
| Sunday Night | 57°F | Chance Showers And Thunderstorms | 13 to 16 mph NE | 53% |
| Monday | 65°F | Showers And Thunderstorms Likely | 17 mph ENE | 65% |
| Monday Night | 52°F | Chance Rain Showers | 12 to 16 mph NE | 47% |
| Tuesday | 63°F | Slight Chance Rain Showers | 15 mph NE | 24% |
| Tuesday Night | 49°F | Partly Cloudy | 7 to 14 mph NNE | 11% |
| Wednesday | 67°F | Mostly Sunny | 7 to 12 mph NNE | 3% |
| Wednesday Night | 52°F | Partly Cloudy | 3 to 8 mph NNE | 1% |
| Thursday | 68°F | Mostly Sunny | 7 mph NNE | 5% |
| Thursday Night | 54°F | Mostly Cloudy | 2 to 6 mph NE | 5% |
| Friday | 72°F | Mostly Sunny | 3 to 7 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Toulon (41.093, -89.863). Updated through the day.
Growing snapshot for Toulon
Last spring frost
Apr 26
First fall frost
Oct 12
Growing season
166 days
Hardiness zone
5b
More local growing data for Toulon: nearby ZIP 61483 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Galva, Il (10.6 mi from Toulon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.