Grayville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grayville, a city in White County, Illinois.
Today
86°F
Sunny
Sunny. High near 86, with temperatures falling to around 84 in the afternoon. Northeast wind around 1 mph.
7-day forecast for Grayville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 1 mph NE | 0% |
| Tonight | 63°F | Clear | 0 mph | 0% |
| Wednesday | 88°F | Sunny | 0 mph | 0% |
| Wednesday Night | 68°F | Mostly Clear | 1 mph S | 4% |
| Thursday | 88°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 1 to 5 mph SSW | 20% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 3 mph S | 44% |
| Friday | 87°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 44% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 2 mph SSW | 40% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 3 mph SSW | 40% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 mph S | 26% |
| Sunday | 90°F | Mostly Sunny | 2 to 6 mph SSW | 10% |
| Sunday Night | 72°F | Mostly Clear | 6 mph SSW | 10% |
| Monday | 92°F | Sunny | 3 to 7 mph SSW | 9% |
| Monday Night | 73°F | Mostly Clear | 6 mph SSW | 14% |
Forecast source: National Weather Service (api.weather.gov) for Grayville (38.255, -87.997). Updated through the day.
Growing snapshot for Grayville
Last spring frost
Apr 7
First fall frost
Oct 25
Growing season
201 days
Hardiness zone
7a
More local growing data for Grayville: nearby ZIP 62844 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grayville, Il (3.2 mi from Grayville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.