| 17:49 MST |  Partly Cloudy | -2°C / 28°F | -19°C / -2°F | 26% | 1016 mb (30 in) | E 6 kph (E 3.5 mph) | - | 15SM |
| | KPVU 050049Z 10003KT 15SM FEW150 M02/M19 A3001 |
| 16:53 MST |  Partly Cloudy | 1°C / 34°F | -21°C / -6°F | 18% | 1017 mb (30.03 in) | Calm | - | 15SM |
| | KPVU 042353Z 00000KT 15SM FEW150 01/M21 A3004 |
| 15:53 MST |  Partly Cloudy | 3°C / 37°F | -19°C / -2°F | 18% | 1018 mb (30.06 in) | SE 9 kph (SE 5.8 mph) | - | 15SM |
| | KPVU 042253Z 12005KT 15SM FEW150 03/M19 A3007 |
| 14:53 MST |  Partly Cloudy | 2°C / 36°F | -18°C / 0°F | 21% | 1020 mb (30.12 in) | Calm | - | 15SM |
| | KPVU 042153Z 00000KT 15SM FEW150 02/M18 A3012 |
| 13:55 MST |  Partly Cloudy | 1°C / 34°F | -17°C / 1°F | 25% | 1021 mb (30.15 in) | ESE 6 kph (ESE 3.5 mph) | - | 15SM |
| | KPVU 042055Z 11003KT 15SM FEW150 01/M17 A3015 |
| 12:48 MST |  Partly Cloudy | -1°C / 30°F | -17°C / 1°F | 29% | 1023 mb (30.21 in) | Calm | - | 15SM |
| | KPVU 041948Z 00000KT 15SM SCT150 M01/M17 A3020 |
| 11:48 MST |  Partly Cloudy | -3°C / 27°F | -15°C / 5°F | 39% | 1024 mb (30.24 in) | Calm | - | 15SM |
| | KPVU 041848Z 00000KT 15SM FEW120 SCT200 M03/M15 A3024 |
| 10:49 MST |  Partly Cloudy | -5°C / 23°F | -17°C / 1°F | 39% | 1025 mb (30.27 in) | Calm | - | 15SM |
| | KPVU 041749Z 00000KT 15SM FEW120 SCT200 M05/M17 A3028 |
| 09:53 MST |  Partly Cloudy | -6°C / 21°F | -16°C / 3°F | 45% | 1026 mb (30.3 in) | SE 19 kph (SE 11.5 mph) | - | 15SM |
| | KPVU 041653Z 14010KT 15SM FEW120 SCT200 M06/M16 A3029 |
| 08:47 MST |  Partly Cloudy | -9°C / 16°F | -16°C / 3°F | 57% | 1026 mb (30.3 in) | SE 11 kph (SE 6.9 mph) | - | 15SM |
| | KPVU 041547Z 12006KT 15SM FEW120 SCT200 M09/M16 A3029 |
| 07:47 MST |  Partly Cloudy | -11°C / 12°F | -16°C / 3°F | 67% | 1026 mb (30.3 in) | SE 9 kph (SE 5.8 mph) | - | 15SM |
| | KPVU 041447Z 13005KT 15SM FEW120 FEW200 M11/M16 A3029 |
| 06:55 MST |  Clear | -12°C / 10°F | -16°C / 3°F | 72% | 1026 mb (30.3 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KPVU 041355Z 10004KT 10SM CLR M12/M16 A3030 RMK AO1 |
| 06:54 MST |  Partly Cloudy | -12°C / 10°F | -16°C / 3°F | 72% | 1026 mb (30.3 in) | Calm | - | 15SM |
| | KPVU 041354Z 00000KT 15SM FEW140 M12/M16 A3030 |
| 06:35 MST |  Clear | -11°C / 12°F | -14°C / 7°F | 79% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KPVU 041335Z 00000KT 10SM CLR M11/M14 A3030 RMK AO1 |
| 06:15 MST |  Clear | -11°C / 12°F | -16°C / 3°F | 67% | 1026 mb (30.3 in) | SE 13 kph (SE 8.1 mph) | - | 10SM |
| | KPVU 041315Z 14007KT 10SM CLR M11/M16 A3030 RMK AO1 |
| 05:55 MST |  Clear | -10°C / 14°F | -15°C / 5°F | 67% | 1026 mb (30.3 in) | SE 13 kph (SE 8.1 mph) | - | 10SM |
| | KPVU 041255Z 13007KT 10SM CLR M10/M15 A3029 RMK AO1 |
| 05:35 MST |  Clear | -11°C / 12°F | -16°C / 3°F | 67% | 1026 mb (30.3 in) | SE 15 kph (SE 9.2 mph) | - | 10SM |
| | KPVU 041235Z 13008KT 10SM CLR M11/M16 A3030 RMK AO1 |
| 05:15 MST |  Clear | -11°C / 12°F | -14°C / 7°F | 79% | 1026 mb (30.3 in) | SE 19 kph (SE 11.5 mph) | - | 10SM |
| | KPVU 041215Z 14010KT 10SM CLR M11/M14 A3031 RMK AO1 |
| 04:55 MST |  Clear | -12°C / 10°F | -16°C / 3°F | 72% | 1026 mb (30.3 in) | SSE 13 kph (SSE 8.1 mph) | - | 10SM |
| | KPVU 041155Z 16007KT 10SM CLR M12/M16 A3031 RMK AO1 11080 21130 54000 |
| 04:35 MST |  Clear | -13°C / 9°F | -15°C / 5°F | 85% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KPVU 041135Z 00000KT 10SM CLR M13/M15 A3031 RMK AO1 |
| 04:15 MST |  Clear | -11°C / 12°F | -15°C / 5°F | 73% | 1026 mb (30.3 in) | SE 11 kph (SE 6.9 mph) | - | 10SM |
| | KPVU 041115Z 14006KT 10SM CLR M11/M15 A3031 RMK AO1 |
| 03:55 MST |  Clear | -12°C / 10°F | -15°C / 5°F | 79% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KPVU 041055Z 00000KT 10SM CLR M12/M15 A3031 RMK AO1 |
| 03:35 MST |  Clear | -12°C / 10°F | -14°C / 7°F | 85% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KPVU 041035Z 00000KT 10SM CLR M12/M14 A3031 RMK AO1 |
| 03:15 MST |  Clear | -12°C / 10°F | -17°C / 1°F | 67% | 1027 mb (30.33 in) | SE 7 kph (SE 4.6 mph) | - | 10SM |
| | KPVU 041015Z 12004KT 10SM CLR M12/M17 A3032 RMK AO1 |
| 02:55 MST |  Clear | -10°C / 14°F | -14°C / 7°F | 73% | 1026 mb (30.3 in) | SE 11 kph (SE 6.9 mph) | - | 10SM |
| | KPVU 040955Z 14006KT 10SM CLR M10/M14 A3031 RMK AO1 |
| 02:35 MST |  Clear | -9°C / 16°F | -14°C / 7°F | 67% | 1027 mb (30.33 in) | SE 11 kph (SE 6.9 mph) | - | 10SM |
| | KPVU 040935Z 14006KT 10SM CLR M09/M14 A3032 RMK AO1 |
| 02:15 MST |  Clear | -10°C / 14°F | -16°C / 3°F | 62% | 1027 mb (30.33 in) | SE 13 kph (SE 8.1 mph) | - | 10SM |
| | KPVU 040915Z 12007KT 10SM CLR M10/M16 A3032 RMK AO1 |
| 01:55 MST |  Clear | -11°C / 12°F | -14°C / 7°F | 79% | 1026 mb (30.3 in) | ESE 6 kph (ESE 3.5 mph) | - | 10SM |
| | KPVU 040855Z 11003KT 10SM CLR M11/M14 A3031 RMK AO1 52003 |
| 01:35 MST |  Clear | -11°C / 12°F | -15°C / 5°F | 73% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KPVU 040835Z 00000KT 10SM CLR M11/M15 A3031 RMK AO1 |
| 01:15 MST |  Clear | -12°C / 10°F | -16°C / 3°F | 72% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KPVU 040815Z 00000KT 10SM CLR M12/M16 A3031 RMK AO1 |
| 00:55 MST |  Clear | -11°C / 12°F | -15°C / 5°F | 73% | 1027 mb (30.33 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KPVU 040755Z 10005KT 10SM CLR M11/M15 A3032 RMK AO1 |
| 00:35 MST |  Clear | -9°C / 16°F | -13°C / 9°F | 73% | 1027 mb (30.33 in) | SE 7 kph (SE 4.6 mph) | - | 10SM |
| | KPVU 040735Z 12004KT 10SM CLR M09/M13 A3032 RMK AO1 |
| 00:15 MST |  Clear | -10°C / 14°F | -15°C / 5°F | 67% | 1027 mb (30.33 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KPVU 040715Z 10003KT 10SM CLR M10/M15 A3032 RMK AO1 |