| 09:25 CST |  Clear | -6°C / 21°F | -15°C / 5°F | 49% | 1025 mb (30.27 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KPYX 041525Z AUTO 25007KT 10SM CLR M06/M15 A3026 RMK AO2 T10581148 |
| 09:05 CST |  Clear | -7°C / 19°F | -15°C / 5°F | 53% | 1024 mb (30.24 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KPYX 041505Z AUTO 25004KT 10SM CLR M07/M15 A3025 RMK AO2 T10701148 |
| 08:45 CST |  Clear | -9°C / 16°F | -15°C / 5°F | 62% | 1024 mb (30.24 in) | W 6 kph (W 3.5 mph) | - | |
| | KPYX 041445Z AUTO 28003KT CLR M09/M15 A3025 RMK AO2 T10861147 |
| 08:25 CST |  Clear | -10°C / 14°F | -15°C / 5°F | 67% | 1024 mb (30.24 in) | WNW 9 kph (WNW 5.8 mph) | - | |
| | KPYX 041425Z AUTO 29005KT CLR M10/M15 A3025 RMK AO2 T11051154 |
| 08:05 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1025 mb (30.27 in) | W 9 kph (W 5.8 mph) | - | |
| | KPYX 041405Z AUTO 28005KT CLR M13/M17 A3026 RMK AO2 T11341171 |
| 07:45 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1025 mb (30.27 in) | SSW 11 kph (SSW 6.9 mph) | - | |
| | KPYX 041345Z AUTO 26006KT CLR M13/M17 A3027 RMK AO2 T11351172 |
| 07:25 CST |  Clear | -14°C / 7°F | -17°C / 1°F | 78% | 1025 mb (30.27 in) | SSW 9 kph (SSW 5.8 mph) | - | |
| | KPYX 041325Z AUTO 26005KT CLR M14/M17 A3026 RMK AO2 T11401175 |
| 07:05 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1025 mb (30.27 in) | NW 11 kph (NW 6.9 mph) | - | |
| | KPYX 041305Z AUTO 30006KT CLR M13/M17 A3026 RMK AO2 T11291168 |
| 06:45 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1025 mb (30.27 in) | NW 13 kph (NW 8.1 mph) | - | |
| | KPYX 041245Z AUTO 31007KT CLR M13/M17 A3026 RMK AO2 T11311171 |
| 06:25 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1025 mb (30.27 in) | NNW 13 kph (NNW 8.1 mph) | - | |
| | KPYX 041225Z AUTO 33007KT CLR M13/M17 A3026 RMK AO2 T11301172 |
| 06:05 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1025 mb (30.27 in) | WNW 6 kph (WNW 3.5 mph) | - | |
| | KPYX 041205Z AUTO 29003KT CLR M13/M17 A3027 RMK AO2 T11321171 |
| 05:45 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1025 mb (30.27 in) | NW 9 kph (NW 5.8 mph) | - | |
| | KPYX 041145Z AUTO 32005KT CLR M13/M17 A3027 RMK AO2 T11281168 11120 21144 |
| 05:25 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1025 mb (30.27 in) | NW 9 kph (NW 5.8 mph) | - | |
| | KPYX 041125Z AUTO 32005KT CLR M13/M17 A3028 RMK AO2 T11351173 |
| 05:05 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1025 mb (30.27 in) | NW 13 kph (NW 8.1 mph) | - | |
| | KPYX 041105Z AUTO 32007KT CLR M13/M17 A3028 RMK AO2 T11341172 |
| 04:45 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1026 mb (30.3 in) | NW 13 kph (NW 8.1 mph) | - | |
| | KPYX 041045Z AUTO 30007KT CLR M13/M17 A3029 RMK AO2 T11341175 |
| 04:25 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1026 mb (30.3 in) | WNW 13 kph (WNW 8.1 mph) | - | |
| | KPYX 041025Z AUTO 29007KT CLR M13/M17 A3029 RMK AO2 T11341174 |
| 04:05 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1026 mb (30.3 in) | W 13 kph (W 8.1 mph) | - | |
| | KPYX 041005Z AUTO 28007KT CLR M13/M17 A3030 RMK AO2 T11271169 |
| 03:45 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1026 mb (30.3 in) | W 15 kph (W 9.2 mph) | - | |
| | KPYX 040945Z AUTO 28008KT CLR M13/M17 A3030 RMK AO2 T11311173 |
| 03:25 CST |  Clear | -14°C / 7°F | -18°C / 0°F | 72% | 1026 mb (30.3 in) | WNW 15 kph (WNW 9.2 mph) | - | |
| | KPYX 040925Z AUTO 29008KT CLR M14/M18 A3031 RMK AO2 T11361176 |
| 03:05 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1026 mb (30.3 in) | WNW 13 kph (WNW 8.1 mph) | - | |
| | KPYX 040905Z AUTO 29007KT CLR M13/M17 A3031 RMK AO2 T11331172 |
| 02:45 CST |  Clear | -14°C / 7°F | -18°C / 0°F | 72% | 1026 mb (30.3 in) | WNW 13 kph (WNW 8.1 mph) | - | |
| | KPYX 040845Z AUTO 29007KT CLR M14/M18 A3031 RMK AO2 T11381179 |
| 02:25 CST |  Clear | -13°C / 9°F | -18°C / 0°F | 66% | 1026 mb (30.3 in) | NW 15 kph (NW 9.2 mph) | - | |
| | KPYX 040825Z AUTO 30008KT CLR M13/M18 A3031 RMK AO2 T11331176 |
| 02:05 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1026 mb (30.3 in) | WNW 15 kph (WNW 9.2 mph) | - | |
| | KPYX 040805Z AUTO 29008KT CLR M13/M17 A3031 RMK AO2 T11321173 |
| 01:45 CST |  Clear | -14°C / 7°F | -18°C / 0°F | 72% | 1026 mb (30.3 in) | NW 15 kph (NW 9.2 mph) | - | |
| | KPYX 040745Z AUTO 30008KT CLR M14/M18 A3030 RMK AO2 T11381179 |
| 01:25 CST |  Clear | -14°C / 7°F | -18°C / 0°F | 72% | 1026 mb (30.3 in) | WNW 13 kph (WNW 8.1 mph) | - | |
| | KPYX 040725Z AUTO 29007KT CLR M14/M18 A3031 RMK AO2 T11441182 |
| 01:05 CST |  Clear | -14°C / 7°F | -18°C / 0°F | 72% | 1026 mb (30.3 in) | NW 11 kph (NW 6.9 mph) | - | |
| | KPYX 040705Z AUTO 30006KT CLR M14/M18 A3031 RMK AO2 T11361180 |
| 00:45 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1026 mb (30.3 in) | NW 11 kph (NW 6.9 mph) | - | |
| | KPYX 040645Z AUTO 30006KT CLR M13/M17 A3030 RMK AO2 T11291172 |
| 00:25 CST |  Clear | -13°C / 9°F | -18°C / 0°F | 66% | 1026 mb (30.3 in) | NW 9 kph (NW 5.8 mph) | - | |
| | KPYX 040625Z AUTO 31005KT CLR M13/M18 A3030 RMK AO2 T11321177 |
| 00:05 CST |  Clear | -13°C / 9°F | -17°C / 1°F | 72% | 1026 mb (30.3 in) | NW 9 kph (NW 5.8 mph) | - | |
| | KPYX 040605Z AUTO 32005KT CLR M13/M17 A3030 RMK AO2 T11261175 |