Illinois · 29 cities · Nov 11, 2026
Illinois soil temperatures (4 inch)
Soil temperature today, largest Illinois cities
°F, today's average of the 0–4 in layer. Green band: 50–55°F. Bars start at 30°F, not zero.
Measured at 4 inches in Illinois
Daily average of hourly probe readings (NOAA USCRN), latest full day. Measured, not modelled.
| NOAA station | 4 in | 2 in | 8 in | Day |
|---|---|---|---|---|
| Champaign 9 SW | 51.5°F | 50.5°F | 53.7°F | Nov 10 |
| Shabbona 5 NNE | 49.8°F | 49.8°F | 50.5°F | Nov 10 |
All 29 cities in Illinois
| City | Soil today | vs a week ago | Next 7 days | Grass seed |
|---|---|---|---|---|
| Chicago, IL | 54°F | −10°F | 43°F–48°F | Too late in the season |
| Aurora, IL | 48°F | −12°F | 38°F–45°F | Too late in the season |
| Rockford, IL | 48°F | −12°F | 37°F–44°F | Too late in the season |
| Joliet, IL | 50°F | −12°F | 39°F–47°F | Too late in the season |
| Peoria, IL | 52°F | −8°F | 39°F–47°F | Too late in the season |
| Springfield, IL | 56°F | −6°F | 40°F–50°F | Too late in the season |
| Elgin, IL | 48°F | −12°F | 38°F–45°F | Too late in the season |
| Champaign, IL | 55°F | −8°F | 41°F–51°F | Too late in the season |
| Bloomington, IL | 53°F | −8°F | 39°F–48°F | Too late in the season |
| Arlington Heights, IL | 52°F | −10°F | 40°F–46°F | Too late in the season |
| Decatur, IL | 56°F | −6°F | 41°F–51°F | Too late in the season |
| Downers Grove, IL | 52°F | −10°F | 41°F–47°F | Too late in the season |
| DeKalb, IL | 48°F | −12°F | 37°F–44°F | Too late in the season |
| Quincy, IL | 55°F | −4°F | 40°F–51°F | Too late in the season |
| Danville, IL | 55°F | −10°F | 41°F–51°F | Too late in the season |
| Galesburg, IL | 51°F | −8°F | 38°F–46°F | Too late in the season |
| North Chicago, IL | 53°F | −10°F | 40°F–47°F | Too late in the season |
| Upper Alton, IL | 58°F | −4°F | 41°F–53°F | Too late in the season |
| O'Fallon, IL | 58°F | −5°F | 42°F–55°F | Too late in the season |
| Kankakee, IL | 53°F | −11°F | 40°F–49°F | Too late in the season |
| McHenry, IL | 48°F | −12°F | 37°F–44°F | Too late in the season |
| Carbondale, IL | 58°F | −6°F | 43°F–56°F | Too late in the season |
| Freeport, IL | 48°F | −11°F | 37°F–44°F | Too late in the season |
| Charleston, IL | 57°F | −8°F | 41°F–53°F | Too late in the season |
| Jacksonville, IL | 56°F | −5°F | 40°F–50°F | Too late in the season |
| Macomb, IL | 54°F | −6°F | 39°F–48°F | Too late in the season |
| Ottawa, IL | 50°F | −11°F | 39°F–46°F | Too late in the season |
| Dixon, IL | 49°F | −11°F | 37°F–44°F | Too late in the season |
| Mount Vernon, IL | 58°F | −6°F | 42°F–55°F | Too late in the season |
City numbers are the modelled average of the top 4 inches (0–10 cm), not a probe at exactly 4 inches. Measured 2, 4 and 8 inch readings · Illinois by ZIP code
Crabgrass preventer timing in Illinois →
Data: Global Forecast System (GFS) 0.25°, soil temperature 0–10 cm (TSOIL) (NOAA National Centers for Environmental Prediction (NCEP)); U.S. Climate Reference Network (USCRN) hourly data, version 2 (soil temperature at 5 cm and 10 cm, air temperature) (NOAA National Centers for Environmental Information (NCEI)); GeoNames gazetteer (cities15000) (GeoNames).