Le Roy, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Le Roy, a city in Mclean County, Illinois.
Today
84°F
Sunny
Sunny, with a high near 84. South wind around 7 mph.
7-day forecast for Le Roy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 7 mph S | 0% |
| Tonight | 65°F | Partly Cloudy | 6 mph SSE | 1% |
| Wednesday | 84°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 9 mph SSW | 21% |
| Wednesday Night | 66°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms | 8 mph SSE | 80% |
| Thursday | 80°F | Showers And Thunderstorms | 8 mph SSW | 80% |
| Thursday Night | 64°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph SSE | 20% |
| Friday | 82°F | Partly Sunny | 5 mph SSW | 10% |
| Friday Night | 65°F | Slight Chance Showers And Thunderstorms | 5 mph S | 24% |
| Saturday | 84°F | Mostly Sunny | 5 to 8 mph SSW | 13% |
| Saturday Night | 69°F | Mostly Clear | 7 to 10 mph SSW | 13% |
| Sunday | 87°F | Sunny | 10 to 15 mph SSW | 9% |
| Sunday Night | 71°F | Partly Cloudy | 10 to 14 mph SSW | 14% |
| Monday | 87°F | Slight Chance Showers And Thunderstorms | 10 to 14 mph SSW | 17% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 13 mph SW | 29% |
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
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Heyworth
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McLean
Normal
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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 Aug 4, 2026.