Grayville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grayville, a city in White County, Illinois.
This Afternoon
78°F
Mostly Sunny
Mostly sunny. High near 78, with temperatures falling to around 76 in the afternoon. South wind 16 to 20 mph, with gusts as high as 28 mph.
7-day forecast for Grayville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Mostly Sunny | 16 to 20 mph S | 2% |
| Tonight | 59°F | Rain Showers | 9 to 16 mph S | 96% |
| Wednesday | 68°F | Slight Chance Rain Showers then Partly Sunny | 6 to 12 mph SW | 20% |
| Wednesday Night | 47°F | Partly Cloudy | 3 mph WSW | 0% |
| Thursday | 69°F | Sunny | 2 to 9 mph SSW | 2% |
| Thursday Night | 48°F | Partly Cloudy | 2 mph WSW | 8% |
| Friday | 63°F | Partly Sunny | 1 to 8 mph NW | 9% |
| Friday Night | 43°F | Partly Cloudy | 5 mph NNW | 2% |
| Saturday | 59°F | Partly Sunny | 5 mph NNW | 0% |
| Saturday Night | 39°F | Partly Cloudy | 1 mph NNW | 3% |
| Sunday | 60°F | Mostly Sunny | 1 to 7 mph WNW | 7% |
| Sunday Night | 38°F | Partly Cloudy | 3 mph WNW | 5% |
| Monday | 60°F | Sunny | 2 to 7 mph W | 4% |
| Monday Night | 38°F | Mostly Clear | 2 mph SW | 3% |
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 Nov 3, 2026.