Le Roy, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Le Roy, a city in Mclean County, Illinois.
Tonight
67°F
Mostly Cloudy
Mostly cloudy, with a low around 67. Southeast wind around 9 mph, with gusts as high as 17 mph.
7-day forecast for Le Roy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Mostly Cloudy | 9 mph SE | 7% |
| Saturday | 86°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 10 mph S | 24% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms | 6 to 9 mph S | 36% |
| Sunday | 80°F | Showers And Thunderstorms Likely | 6 to 16 mph NNE | 64% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 13 to 18 mph NE | 64% |
| Monday | 68°F | Showers And Thunderstorms Likely | 16 to 20 mph ENE | 66% |
| Monday Night | 52°F | Chance Showers And Thunderstorms | 15 to 20 mph NE | 54% |
| Tuesday | 66°F | Chance Rain Showers | 17 mph NE | 28% |
| Tuesday Night | 51°F | Mostly Cloudy | 9 to 17 mph NNE | 8% |
| Wednesday | 69°F | Partly Sunny | 10 to 14 mph NNE | 4% |
| Wednesday Night | 52°F | Partly Cloudy | 6 to 13 mph NNE | 4% |
| Thursday | 71°F | Mostly Sunny | 7 to 12 mph NNE | 3% |
| Thursday Night | 53°F | Partly Cloudy | 6 to 10 mph NNE | 4% |
| Friday | 72°F | Mostly Sunny | 7 to 10 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Le Roy (40.339, -88.761). Updated through the day.
Growing snapshot for Le Roy
Last spring frost
Apr 25
First fall frost
Oct 16
Growing season
172 days
Hardiness zone
6a
More local growing data for Le Roy: nearby ZIP 61752 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Anchor
Arrowsmith
Bellflower
Bloomington
Chenoa
Colfax
Cooksville
Danvers
Downs
Ellsworth
Gridley
Heyworth
Hudson
Kappa
Lexington
McLean
Normal
Saybrook
Shirley
Stanford
Towanda
Twin Grove
Climate data from the nearest NOAA station, Normal 4Ne, Il (17.7 mi from Le Roy). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.