Allerton, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Allerton, a village in Vermilion County, Illinois.
Tonight
57°F
Rain
Rain before 2am, then rain showers. Mostly cloudy, with a low around 57. South wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Allerton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Rain | 14 to 17 mph S | 87% |
| Wednesday | 64°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph SSW | 36% |
| Wednesday Night | 45°F | Mostly Cloudy | 8 mph SW | 0% |
| Thursday | 63°F | Mostly Sunny | 7 to 13 mph WSW | 2% |
| Thursday Night | 43°F | Mostly Cloudy | 5 mph WNW | 6% |
| Friday | 57°F | Mostly Cloudy | 5 to 9 mph NNW | 12% |
| Friday Night | 36°F | Mostly Cloudy | 3 to 7 mph NNW | 7% |
| Saturday | 55°F | Mostly Sunny | 3 mph NW | 2% |
| Saturday Night | 33°F | Partly Cloudy | 2 mph W | 2% |
| Sunday | 60°F | Mostly Sunny | 2 to 8 mph W | 10% |
| Sunday Night | 33°F | Mostly Clear | 5 mph WNW | 8% |
| Monday | 63°F | Sunny | 3 to 9 mph WSW | 4% |
| Monday Night | 38°F | Mostly Clear | 6 mph WSW | 1% |
| Tuesday | 67°F | Sunny | 7 mph W | 1% |
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 Nov 4, 2026.