Allerton, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Allerton, a village in Vermilion County, Illinois.
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. South wind 1 to 5 mph.
7-day forecast for Allerton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 1 to 5 mph S | 0% |
| Tonight | 64°F | Mostly Clear | 3 mph SSE | 0% |
| Wednesday | 85°F | Sunny | 6 mph S | 1% |
| Wednesday Night | 67°F | Slight Chance Showers And Thunderstorms | 5 mph S | 44% |
| Thursday | 82°F | Showers And Thunderstorms Likely | 6 mph SSW | 73% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms | 3 mph S | 40% |
| Friday | 83°F | Partly Sunny then Chance Showers And Thunderstorms | 3 mph SSW | 25% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 2 mph SSW | 25% |
| Saturday | 85°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 mph SSW | 17% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 2 to 7 mph SSW | 15% |
| Sunday | 87°F | Sunny | 7 to 12 mph SSW | 10% |
| Sunday Night | 71°F | Partly Cloudy | 10 mph SSW | 11% |
| Monday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 10 mph SSW | 18% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 10 mph SW | 28% |
Forecast source: National Weather Service (api.weather.gov) for Allerton (39.916, -87.935). Updated through the day.
Growing snapshot for Allerton
Last spring frost
Apr 19
First fall frost
Oct 19
Growing season
181 days
Hardiness zone
6a
More local growing data for Allerton: nearby ZIP 61810 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Alvan (Alvin)
Belgium
Bismarck
Catlin
Danville
East Lynn
Fairmount
Fithian
Georgetown
Henning
Hoopeston
Indianola
Muncie
Oakwood
Olivet
Potomac
Rankin
Ridge Farm
Rossville
Sidell
Tilton
Westville
Climate data from the nearest NOAA station, Sidell 4N, Il (6.4 mi from Allerton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.