| 11:58 CST |  Overcast Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1023 mb (30.21 in) | E 30 kph (E 18.4 mph) | 0.00 mm (0.00 in) | 4SM |
| | KMDW 231758Z 09016G22KT 4SM -FZRAPL BR OVC016 M01/M03 A3022 RMK AO2 PLB52 P0000 |
| 11:57 CST |  Overcast Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1023 mb (30.21 in) | E 30 kph (E 18.4 mph) | 0.00 mm (0.00 in) | 4SM |
| | KMDW 231757Z 10016G22KT 4SM -FZRAPL BR OVC016 M01/M03 A3022 RMK AO2 PLB52 P0000 |
| 11:51 CST |  Overcast Light Freezing Rain | -1°C / 30°F | -3°C / 27°F | 86% | 1023 mb (30.21 in) | E 22 kph (E 13.8 mph) | 0.00 mm (0.00 in) | 4SM |
| | KMDW 231751Z 09012KT 4SM -FZRA BR OVC016 M01/M03 A3022 RMK AO2 SLP247 4/003 P0000 60000 T10061033 11006 21011 58010 |
| 10:51 CST |  Overcast Light Freezing Rain | -1°C / 30°F | -4°C / 25°F | 80% | 1025 mb (30.27 in) | E 28 kph (E 17.3 mph) | 0.00 mm (0.00 in) | 5SM |
| | KMDW 231651Z 10015G20KT 5SM -FZRA BR OVC016 M01/M04 A3026 RMK AO2 FZRAB37SNB04E41 SLP259 P0000 T10111039 |
| 10:41 CST |  Overcast Light Freezing Rain | -1°C / 30°F | -4°C / 25°F | 80% | 1025 mb (30.27 in) | E 26 kph (E 16.1 mph) | 0.00 mm (0.00 in) | 5SM |
| | KMDW 231641Z 10014KT 5SM -FZRA BR OVC016 M01/M04 A3026 RMK AO2 FZRAB37SNB04E41 P0000 |
| 09:51 CST |  Overcast | -1°C / 30°F | -4°C / 25°F | 80% | 1025 mb (30.27 in) | E 32 kph (E 19.6 mph) | - | 9SM |
| | KMDW 231551Z 10017G23KT 9SM OVC016 M01/M04 A3026 RMK AO2 SLP260 T10061039 |
| 08:51 CST |  Overcast | -1°C / 30°F | -4°C / 25°F | 80% | 1025 mb (30.27 in) | E 28 kph (E 17.3 mph) | - | 8SM |
| | KMDW 231451Z 09015KT 8SM OVC016 M01/M04 A3026 RMK AO2 SLP257 T10061039 52007 |
| 08:07 CST |  Overcast | -1°C / 30°F | -4°C / 25°F | 80% | 1024 mb (30.24 in) | E 30 kph (E 18.4 mph) | - | 8SM |
| | KMDW 231407Z 09016KT 8SM OVC016 M01/M04 A3025 RMK AO2 |
| 07:51 CST |  Overcast | -1°C / 30°F | -4°C / 25°F | 80% | 1024 mb (30.24 in) | E 26 kph (E 16.1 mph) | - | 8SM |
| | KMDW 231351Z 09014G20KT 8SM OVC014 M01/M04 A3025 RMK AO2 SLP256 T10061039 |
| 06:51 CST |  Overcast | -1°C / 30°F | -4°C / 25°F | 80% | 1024 mb (30.24 in) | E 24 kph (E 15 mph) | - | 8SM |
| | KMDW 231251Z 10013KT 8SM OVC014 M01/M04 A3024 RMK AO2 SLP251 T10061039 |
| 05:51 CST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | E 28 kph (E 17.3 mph) | - | 10SM |
| | KMDW 231151Z 10015KT 10SM OVC014 M01/M03 A3023 RMK AO2 SLP250 4/003 60000 70005 T10061033 11006 21006 55002 |
| 04:51 CST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | E 26 kph (E 16.1 mph) | 0.00 mm (0.00 in) | 10SM |
| | KMDW 231051Z 08014KT 10SM OVC012 M01/M03 A3023 RMK AO2 SNB0953E0956 SLP249 P0000 T10061033 |
| 04:29 CST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | E 20 kph (E 12.7 mph) | 0.00 mm (0.00 in) | 8SM |
| | KMDW 231029Z 09011G21KT 8SM OVC012 M01/M03 A3023 RMK AO2 SNB0953E0956 P0000 |
| 03:51 CST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | E 30 kph (E 18.4 mph) | 0.00 mm (0.00 in) | 9SM |
| | KMDW 230951Z 10016KT 9SM OVC016 M01/M03 A3024 RMK AO2 SNE00 SLP252 P0000 T10061033 |
| 02:51 CST |  Overcast Light Snow | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | E 28 kph (E 17.3 mph) | 0.00 mm (0.00 in) | 9SM |
| | KMDW 230851Z 09015KT 9SM -SN OVC021 M01/M03 A3024 RMK AO2 SNB18 SLP251 P0000 60000 T10061033 58002 |
| 02:01 CST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | E 28 kph (E 17.3 mph) | - | 10SM |
| | KMDW 230801Z 10015KT 10SM BKN017 BKN023 OVC050 M01/M03 A3025 RMK AO2 |
| 01:51 CST |  Overcast | -1°C / 30°F | -4°C / 25°F | 80% | 1024 mb (30.24 in) | E 24 kph (E 15 mph) | - | 10SM |
| | KMDW 230751Z 10013G21KT 10SM SCT017 OVC050 M01/M04 A3025 RMK AO2 SLP256 T10061039 |
| 01:43 CST |  Overcast | -1°C / 30°F | -4°C / 25°F | 80% | 1024 mb (30.24 in) | E 26 kph (E 16.1 mph) | - | 9SM |
| | KMDW 230743Z 10014G21KT 9SM SCT017 OVC050 M01/M04 A3025 RMK AO2 |
| 00:51 CST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | E 28 kph (E 17.3 mph) | - | 9SM |
| | KMDW 230651Z 09015G19KT 9SM BKN017 OVC050 M01/M03 A3024 RMK AO2 SLP254 T10061033 |
| 00:17 CST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | E 22 kph (E 13.8 mph) | - | 10SM |
| | KMDW 230617Z 10012G19KT 10SM BKN017 OVC050 M01/M03 A3025 RMK AO2 |