Illinois — Click on a column heading below to sort this information.
| Place | Temp | Humidity | Pressure | Conditions | Wind | Updated |
| Alton | 32 °F / 0 °C | 77% | 30.08 in / 1018 hPa | Overcast | WNW at 5 mph / 7 km/h | 1:45 AM CST |
| Aurora | 23 °F / -5 °C | 74% | 29.98 in / 1015 hPa | Overcast | WSW at 6 mph / 9 km/h | 1:52 AM CST |
| Belleville | 28 °F / -2 °C | 82% | 30.12 in / 1020 hPa | Overcast | SSW at 4 mph / 6 km/h | 1:55 AM CST |
| Bloomington | 23 °F / -5 °C | 78% | 30.07 in / 1018 hPa | Overcast | SW at 6 mph / 9 km/h | 1:56 AM CST |
| Cahokia | 29 °F / -2 °C | 69% | 30.10 in / 1019 hPa | Partly Cloudy | SW at 5 mph / 7 km/h | 1:53 AM CST |
| Carbondale | 26 °F / -3 °C | 81% | 30.14 in / 1020 hPa | Clear | SW at 5 mph / 7 km/h | 1:52 AM CST |
| Centralia | 30 °F / -1 °C | 55% | 30.09 in / 1019 hPa | Overcast | WSW at 7 mph / 11 km/h | 1:45 AM CST |
| Champaign | 24 °F / -4 °C | 75% | 30.06 in / 1018 hPa | Overcast | West at 9 mph / 15 km/h | 1:53 AM CST |
| Chicago | 22 °F / -6 °C | 78% | 30.01 in / 1016 hPa | Light Snow | West at 7 mph / 11 km/h | 1:51 AM CST |
| Danville | 28 °F / -2 °C | 76% | 30.00 in / 1016 hPa | Overcast | West at 9 mph / 15 km/h | 1:45 AM CST |
| Decatur | 26 °F / -3 °C | 71% | 30.07 in / 1018 hPa | Overcast | WSW at 8 mph / 13 km/h | 1:54 AM CST |
| Dekalb | 20 °F / -7 °C | 83% | 29.93 in / 1013 hPa | Light Snow | West at 7 mph / 11 km/h | 1:45 AM CST |
| Fairfield | 28 °F / -2 °C | 69% | 30.11 in / 1020 hPa | Overcast | West at 5 mph / 7 km/h | 1:45 AM CST |
| Flora | 30 °F / -1 °C | 69% | 30.10 in / 1019 hPa | Overcast | WNW at 6 mph / 9 km/h | 1:45 AM CST |
| Freeport | 20 °F / -7 °C | 74% | 29.93 in / 1013 hPa | Overcast | Calm | 1:45 AM CST |
| Galesburg | 23 °F / -5 °C | 86% | 29.98 in / 1015 hPa | Clear | WSW at 6 mph / 9 km/h | 1:45 AM CST |
| Harrisburg | 32 °F / 0 °C | 75% | 30.11 in / 1020 hPa | Overcast | Calm | 1:45 AM CST |
| Jacksonville | 28 °F / -2 °C | 76% | 30.05 in / 1018 hPa | Overcast | SW at 5 mph / 7 km/h | 1:45 AM CST |
| Joliet | 24 °F / -5 °C | 80% | 29.97 in / 1015 hPa | Overcast | SW at 7 mph / 11 km/h | 1:45 AM CST |
| Kankakee | 23 °F / -5 °C | 80% | 29.99 in / 1016 hPa | Light Snow | West at 12 mph / 18 km/h | 1:45 AM CST |
| Lacon | 25 °F / -4 °C | 69% | 29.99 in / 1016 hPa | Overcast | West at 4 mph / 6 km/h | 1:45 AM CST |
| Lawrenceville | 28 °F / -2 °C | N/A% | 30.10 in / 1019 hPa | Overcast | WSW at 6 mph / 9 km/h | 1:53 AM CST |
| Marion | 28 °F / -2 °C | 80% | 30.13 in / 1020 hPa | Mostly Cloudy | Calm | 1:45 AM CST |
| Moline | 22 °F / -6 °C | 75% | 30.02 in / 1016 hPa | Overcast | West at 8 mph / 13 km/h | 1:52 AM CST |
| Morris | 25 °F / -4 °C | 80% | 29.97 in / 1015 hPa | Overcast | West at 10 mph / 17 km/h | 1:45 AM CST |
| Mount Vernon | 28 °F / -2 °C | 69% | 30.11 in / 1020 hPa | Overcast | SW at 5 mph / 7 km/h | 1:55 AM CST |
| Paris | 26 °F / -4 °C | 74% | 30.05 in / 1018 hPa | Overcast | West at 14 mph / 22 km/h | 1:45 AM CST |
| Peoria | 25 °F / -4 °C | 75% | 30.04 in / 1017 hPa | Overcast | West at 9 mph / 15 km/h | 1:54 AM CST |
| Pittsfield | 27 °F / -3 °C | 86% | 30.05 in / 1018 hPa | Overcast | SSW at 4 mph / 6 km/h | 1:45 AM CST |
| Pontiac | 27 °F / -3 °C | 80% | 29.99 in / 1016 hPa | Overcast | West at 7 mph / 11 km/h | 1:45 AM CST |
| Quincy | 22 °F / -6 °C | 82% | 30.06 in / 1018 hPa | Mostly Cloudy | SSW at 5 mph / 7 km/h | 1:54 AM CST |
| Rantoul | 21 °F / -6 °C | 86% | 30.03 in / 1017 hPa | Light Snow | Calm | 1:49 AM CST |
| Rochelle | 19 °F / -7 °C | 85% | 29.96 in / 1014 hPa | Overcast | West at 7 mph / 11 km/h | 1:45 AM CST |
| Rockford | 21 °F / -6 °C | 71% | 30.00 in / 1016 hPa | Light Snow | West at 9 mph / 15 km/h | 1:54 AM CST |
| Salem | 30 °F / -1 °C | 68% | 30.09 in / 1019 hPa | Overcast | WSW at 4 mph / 6 km/h | 1:46 AM CST |
| Sparta | 27 °F / -3 °C | 80% | 30.11 in / 1020 hPa | Clear | SSW at 4 mph / 6 km/h | 1:45 AM CST |
| Springfield | 27 °F / -3 °C | 75% | 30.07 in / 1018 hPa | Overcast | WSW at 9 mph / 15 km/h | 1:52 AM CST |
| Sterling | 23 °F / -5 °C | 68% | 29.98 in / 1015 hPa | Overcast | WSW at 7 mph / 11 km/h | 1:55 AM CST |
| Taylorville | 28 °F / -2 °C | 74% | 30.05 in / 1018 hPa | Overcast | WSW at 7 mph / 11 km/h | 1:45 AM CST |
| Waukegan | 20 °F / -7 °C | 78% | 29.98 in / 1015 hPa | Overcast | WSW at 5 mph / 7 km/h | 1:52 AM CST |
