| 02:35 CST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1018 mb (30.06 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KTNU 050835Z AUTO 18004KT 10SM CLR M08/M11 A3005 RMK AO2 |
| 02:15 CST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1018 mb (30.06 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KTNU 050815Z AUTO 17005KT 10SM CLR M09/M11 A3006 RMK AO2 |
| 01:55 CST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1018 mb (30.06 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KTNU 050755Z AUTO 16005KT 10SM CLR M09/M11 A3005 RMK AO2 |
| 01:35 CST |  Clear | -10°C / 14°F | -11°C / 12°F | 92% | 1018 mb (30.06 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KTNU 050735Z AUTO 16004KT 10SM CLR M10/M11 A3005 RMK AO2 |
| 01:15 CST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1017 mb (30.03 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KTNU 050715Z AUTO 16004KT 10SM CLR M09/M11 A3004 RMK AO2 |
| 00:35 CST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1018 mb (30.06 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KTNU 050635Z AUTO 17004KT 10SM CLR M09/M11 A3006 RMK AO2 |
| 00:15 CST |  Clear | -8°C / 18°F | -10°C / 14°F | 86% | 1018 mb (30.06 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KTNU 050615Z AUTO 18003KT 10SM CLR M08/M10 A3006 RMK AO2 |