| 02:35 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1020 mb (30.12 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KHYS 110835Z AUTO 22004KT 10SM CLR M13/M17 A3013 RMK AO1 |
| 02:15 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KHYS 110815Z AUTO 00000KT 10SM CLR M13/M17 A3014 RMK AO1 |
| 01:55 CST |  Clear | -13°C / 9°F | -16°C / 3°F | 78% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KHYS 110755Z AUTO 00000KT 10SM CLR M13/M16 A3013 RMK AO1 |
| 01:35 CST |  Clear | -13°C / 9°F | -16°C / 3°F | 78% | 1020 mb (30.12 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KHYS 110735Z AUTO 25003KT 10SM CLR M13/M16 A3013 RMK AO1 |
| 01:15 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1021 mb (30.15 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KHYS 110715Z AUTO 25004KT 10SM CLR M13/M17 A3014 RMK AO1 |
| 00:55 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1021 mb (30.15 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KHYS 110655Z AUTO 25005KT 10SM CLR M13/M17 A3014 RMK AO1 |
| 00:35 CST |  Clear | -12°C / 10°F | -16°C / 3°F | 72% | 1021 mb (30.15 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KHYS 110635Z AUTO 24008KT 10SM CLR M12/M16 A3014 RMK AO1 |
| 00:15 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1021 mb (30.15 in) | SW 17 kph (SW 10.4 mph) | - | 10SM |
| | KHYS 110615Z AUTO 23009KT 10SM CLR M13/M17 A3014 RMK AO1 |