Du Bois, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Du Bois, a village in Washington County, Illinois.
Today
86°F
Sunny
Sunny, with a high near 86. Southeast wind around 3 mph.
7-day forecast for Du Bois
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 3 mph SE | 0% |
| Tonight | 64°F | Mostly Clear | 0 to 3 mph ESE | 0% |
| Wednesday | 89°F | Sunny | 1 mph S | 2% |
| Wednesday Night | 69°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 3 mph S | 21% |
| Thursday | 88°F | Chance Showers And Thunderstorms | 3 mph SSW | 42% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms | 2 mph S | 59% |
| Friday | 87°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 3 mph SW | 59% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 1 mph SSW | 44% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 3 mph SSW | 44% |
| Saturday Night | 70°F | Partly Cloudy | 2 mph SSW | 12% |
| Sunday | 91°F | Sunny | 6 mph SSW | 8% |
| Sunday Night | 72°F | Mostly Clear | 6 mph SSW | 4% |
| Monday | 93°F | Sunny | 5 to 8 mph SSW | 5% |
| Monday Night | 73°F | Partly Cloudy | 7 mph SSW | 9% |
Forecast source: National Weather Service (api.weather.gov) for Du Bois (38.221, -89.213). Updated through the day.
Growing snapshot for Du Bois
Last spring frost
Apr 7
First fall frost
Oct 26
Growing season
201 days
Hardiness zone
6b
More local growing data for Du Bois: nearby ZIP 62831 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Nashville 1 E, Il (10.5 mi from Du Bois). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.