| 04:52 CST |  Clear | 3°C / 37°F | -4°C / 25°F | 60% | 1018 mb (30.06 in) | S 15 kph (S 9.2 mph) | - | 10SM |
| | KCNU 271052Z AUTO 19008KT 10SM CLR 03/M04 A3006 RMK AO2 SLP182 T00281044 |
| 03:52 CST |  Clear | 3°C / 37°F | -4°C / 25°F | 60% | 1019 mb (30.09 in) | S 17 kph (S 10.4 mph) | - | 10SM |
| | KCNU 270952Z AUTO 19009KT 10SM CLR 03/M04 A3008 RMK AO2 SLP187 T00281039 |
| 02:52 CST |  Clear | 1°C / 34°F | -4°C / 25°F | 70% | 1019 mb (30.09 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KCNU 270852Z AUTO 19006KT 10SM CLR 01/M04 A3009 RMK AO2 SLP193 T00111039 56010 |
| 01:52 CST |  Clear | 1°C / 34°F | -4°C / 25°F | 70% | 1019 mb (30.09 in) | S 13 kph (S 8.1 mph) | - | 10SM |
| | KCNU 270752Z AUTO 19007KT 10SM CLR 01/M04 A3010 RMK AO2 SLP194 T00111044 |
| 00:52 CST |  Clear | 1°C / 34°F | -4°C / 25°F | 70% | 1020 mb (30.12 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KCNU 270652Z AUTO 20006KT 10SM CLR 01/M04 A3011 RMK AO2 SLP200 T00111044 |