| 05:15 MST |  Clear | -12°C / 10°F | -12°C / 10°F | 100% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KEGE 301215Z 00000KT 10SM CLR M12/M12 A3035 RMK AO1 |
| 04:55 MST |  Clear | -12°C / 10°F | -13°C / 9°F | 92% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KEGE 301155Z 00000KT 10SM CLR M12/M13 A3034 RMK AO1 11070 21120 52007 |
| 04:35 MST |  Clear | -12°C / 10°F | -12°C / 10°F | 100% | 1027 mb (30.33 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KEGE 301135Z 09005KT 10SM CLR M12/M12 A3033 RMK AO1 |
| 04:15 MST |  Clear | -12°C / 10°F | -12°C / 10°F | 100% | 1027 mb (30.33 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KEGE 301115Z 08003KT 10SM CLR M12/M12 A3033 RMK AO1 |
| 03:55 MST |  Clear | -10°C / 14°F | -11°C / 12°F | 92% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KEGE 301055Z 00000KT 10SM CLR M10/M11 A3033 RMK AO1 |
| 03:35 MST |  Clear | -10°C / 14°F | -12°C / 10°F | 85% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KEGE 301035Z 00000KT 10SM CLR M10/M12 A3033 RMK AO1 |
| 03:15 MST |  Clear | -10°C / 14°F | -11°C / 12°F | 92% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KEGE 301015Z 00000KT 10SM CLR M10/M11 A3033 RMK AO1 |
| 02:55 MST |  Clear | -10°C / 14°F | -11°C / 12°F | 92% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KEGE 300955Z 00000KT 10SM CLR M10/M11 A3033 RMK AO1 |
| 02:35 MST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KEGE 300935Z 00000KT 10SM CLR M09/M11 A3033 RMK AO1 |
| 02:15 MST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1027 mb (30.33 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KEGE 300915Z 10003KT 10SM CLR M09/M11 A3033 RMK AO1 |
| 01:55 MST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1027 mb (30.33 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KEGE 300855Z 10004KT 10SM CLR M09/M11 A3032 RMK AO1 |
| 01:35 MST |  Clear | -9°C / 16°F | -10°C / 14°F | 93% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KEGE 300835Z 00000KT 10SM CLR M09/M10 A3031 RMK AO1 |
| 01:15 MST |  Clear | -9°C / 16°F | -10°C / 14°F | 93% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KEGE 300815Z 00000KT 10SM CLR M09/M10 A3031 RMK AO1 |
| 00:55 MST |  Clear | -9°C / 16°F | -10°C / 14°F | 93% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KEGE 300755Z 00000KT 10SM CLR M09/M10 A3030 RMK AO1 |
| 00:35 MST |  Clear | -8°C / 18°F | -10°C / 14°F | 86% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KEGE 300735Z 00000KT 10SM CLR M08/M10 A3029 RMK AO1 |
| 00:15 MST |  Clear | -8°C / 18°F | -9°C / 16°F | 93% | 1025 mb (30.27 in) | SE 7 kph (SE 4.6 mph) | - | 10SM |
| | KEGE 300715Z 12004KT 10SM CLR M08/M09 A3028 RMK AO1 |