| 12:55 MST |  Overcast | -5°C / 23°F | -11°C / 12°F | 63% | 1008 mb (29.77 in) | NNW 52 kph (NNW 32.2 mph) | - | 4SM |
| | KGXY 251955Z AUTO 33028G32KT 4SM OVC075 M05/M11 A2977 RMK AO1 |
| 12:35 MST |  Overcast | -5°C / 23°F | -11°C / 12°F | 63% | 1008 mb (29.77 in) | NNW 46 kph (NNW 28.8 mph) | - | 9SM |
| | KGXY 251935Z AUTO 34025G28KT 9SM BKN075 OVC085 M05/M11 A2978 RMK AO1 |
| 12:15 MST |  Overcast | -5°C / 23°F | -11°C / 12°F | 63% | 1009 mb (29.8 in) | NNW 44 kph (NNW 27.6 mph) | - | 5SM |
| | KGXY 251915Z AUTO 34024G32KT 5SM FEW070 OVC085 M05/M11 A2979 RMK AO1 |
| 11:55 MST |  Overcast | -6°C / 21°F | -11°C / 12°F | 68% | 1009 mb (29.8 in) | NNW 46 kph (NNW 28.8 mph) | - | 3SM |
| | KGXY 251855Z AUTO 33025G33KT 3SM FEW070 OVC085 M06/M11 A2979 RMK AO1 |
| 11:35 MST |  Overcast | -6°C / 21°F | -11°C / 12°F | 68% | 1009 mb (29.8 in) | NNW 46 kph (NNW 28.8 mph) | - | 5SM |
| | KGXY 251835Z AUTO 33025G32KT 5SM OVC085 M06/M11 A2980 RMK AO1 |
| 11:15 MST |  Overcast | -6°C / 21°F | -12°C / 10°F | 63% | 1009 mb (29.8 in) | NNW 46 kph (NNW 28.8 mph) | - | 5SM |
| | KGXY 251815Z AUTO 33025G33KT 5SM OVC085 M06/M12 A2980 RMK AO1 |
| 10:55 MST |  Overcast | -6°C / 21°F | -12°C / 10°F | 63% | 1009 mb (29.8 in) | NNW 35 kph (NNW 21.9 mph) | - | 10SM |
| | KGXY 251755Z AUTO 34019G24KT 10SM OVC085 M06/M12 A2981 RMK AO1 11060 21120 57014 |
| 10:35 MST |  Overcast | -6°C / 21°F | -12°C / 10°F | 63% | 1010 mb (29.83 in) | NNW 41 kph (NNW 25.3 mph) | - | 10SM |
| | KGXY 251735Z AUTO 33022G26KT 10SM FEW060 SCT075 OVC095 M06/M12 A2982 RMK AO1 |
| 10:15 MST |  Mostly Cloudy | -6°C / 21°F | -12°C / 10°F | 63% | 1010 mb (29.83 in) | NNW 37 kph (NNW 23 mph) | - | 10SM |
| | KGXY 251715Z AUTO 34020G26KT 10SM SCT060 BKN075 M06/M12 A2983 RMK AO1 |
| 09:55 MST |  Partly Cloudy | -7°C / 19°F | -13°C / 9°F | 63% | 1010 mb (29.83 in) | NNW 32 kph (NNW 19.6 mph) | - | 10SM |
| | KGXY 251655Z AUTO 34017KT 10SM SCT060 SCT065 M07/M13 A2984 RMK AO1 |
| 09:35 MST |  Mostly Cloudy | -8°C / 18°F | -14°C / 7°F | 62% | 1010 mb (29.83 in) | N 26 kph (N 16.1 mph) | - | 10SM |
| | KGXY 251635Z AUTO 35014G17KT 10SM SCT050 BKN120 M08/M14 A2984 RMK AO1 |
| 09:15 MST |  Partly Cloudy | -10°C / 14°F | -14°C / 7°F | 73% | 1011 mb (29.85 in) | N 20 kph (N 12.7 mph) | - | 10SM |
| | KGXY 251615Z AUTO 35011KT 10SM FEW060 SCT120 M10/M14 A2985 RMK AO1 |
| 08:55 MST |  Partly Cloudy | -11°C / 12°F | -14°C / 7°F | 79% | 1011 mb (29.85 in) | N 19 kph (N 11.5 mph) | - | 10SM |
| | KGXY 251555Z AUTO 35010KT 10SM SCT060 M11/M14 A2985 RMK AO1 |
| 08:35 MST |  Mostly Cloudy | -12°C / 10°F | -16°C / 3°F | 72% | 1011 mb (29.85 in) | N 20 kph (N 12.7 mph) | - | 10SM |
| | KGXY 251535Z AUTO 36011KT 10SM SCT060 SCT075 BKN080 M12/M16 A2986 RMK AO1 |
| 08:15 MST |  Mostly Cloudy | -12°C / 10°F | -15°C / 5°F | 79% | 1011 mb (29.85 in) | N 15 kph (N 9.2 mph) | - | 10SM |
| | KGXY 251515Z AUTO 36008KT 10SM FEW070 BKN080 M12/M15 A2985 RMK AO1 |
| 07:55 MST |  Partly Cloudy | -12°C / 10°F | -16°C / 3°F | 72% | 1011 mb (29.85 in) | N 20 kph (N 12.7 mph) | - | 10SM |
| | KGXY 251455Z AUTO 36011KT 10SM FEW120 M12/M16 A2985 RMK AO1 52010 |
| 07:35 MST |  Partly Cloudy | -11°C / 12°F | -14°C / 7°F | 79% | 1010 mb (29.83 in) | N 24 kph (N 15 mph) | - | 10SM |
| | KGXY 251435Z AUTO 36013KT 10SM FEW100 FEW120 M11/M14 A2984 RMK AO1 |
| 07:15 MST |  Mostly Cloudy | -9°C / 16°F | -14°C / 7°F | 67% | 1010 mb (29.83 in) | N 28 kph (N 17.3 mph) | - | 10SM |
| | KGXY 251415Z AUTO 36015KT 10SM BKN100 BKN120 M09/M14 A2984 RMK AO1 |
| 06:55 MST |  Partly Cloudy | -10°C / 14°F | -14°C / 7°F | 73% | 1010 mb (29.83 in) | N 22 kph (N 13.8 mph) | - | 10SM |
| | KGXY 251355Z AUTO 36012KT 10SM FEW100 SCT120 M10/M14 A2984 RMK AO1 |
| 06:35 MST |  Partly Cloudy | -9°C / 16°F | -13°C / 9°F | 73% | 1010 mb (29.83 in) | N 20 kph (N 12.7 mph) | - | 10SM |
| | KGXY 251335Z AUTO 36011KT 10SM SCT120 M09/M13 A2983 RMK AO1 |
| 06:15 MST |  Partly Cloudy | -10°C / 14°F | -13°C / 9°F | 79% | 1010 mb (29.83 in) | N 22 kph (N 13.8 mph) | - | 10SM |
| | KGXY 251315Z AUTO 36012KT 10SM SCT120 M10/M13 A2983 RMK AO1 |
| 05:55 MST |  Mostly Cloudy | -9°C / 16°F | -12°C / 10°F | 79% | 1010 mb (29.83 in) | N 24 kph (N 15 mph) | - | 10SM |
| | KGXY 251255Z AUTO 35013KT 10SM FEW060 SCT070 BKN090 M09/M12 A2983 RMK AO1 |
| 05:35 MST |  Overcast | -9°C / 16°F | -12°C / 10°F | 79% | 1010 mb (29.83 in) | N 28 kph (N 17.3 mph) | - | 10SM |
| | KGXY 251235Z AUTO 35015KT 10SM BKN060 BKN075 OVC090 M09/M12 A2983 RMK AO1 |
| 05:15 MST |  Overcast | -10°C / 14°F | -12°C / 10°F | 85% | 1010 mb (29.83 in) | N 22 kph (N 13.8 mph) | - | 10SM |
| | KGXY 251215Z AUTO 35012KT 10SM FEW050 OVC090 M10/M12 A2982 RMK AO1 |
| 04:55 MST |  Overcast | -10°C / 14°F | -11°C / 12°F | 92% | 1010 mb (29.83 in) | N 28 kph (N 17.3 mph) | - | 10SM |
| | KGXY 251155Z AUTO 35015KT 10SM FEW055 SCT075 OVC090 M10/M11 A2982 RMK AO1 11100 21230 54000 |
| 04:35 MST |  Overcast | -18°C / 0°F | -19°C / -2°F | 92% | 1010 mb (29.83 in) | NNE 7 kph (NNE 4.6 mph) | - | 10SM |
| | KGXY 251135Z AUTO 02004KT 10SM FEW048 SCT090 OVC110 M18/M19 A2983 RMK AO1 |
| 04:15 MST |  Overcast | -18°C / 0°F | -19°C / -2°F | 92% | 1010 mb (29.83 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KGXY 251115Z AUTO 22005KT 10SM FEW049 BKN060 OVC110 M18/M19 A2983 RMK AO1 |
| 03:55 MST |  Overcast | -19°C / -2°F | -21°C / -6°F | 84% | 1010 mb (29.83 in) | Calm | - | 10SM |
| | KGXY 251055Z AUTO 00000KT 10SM BKN050 OVC120 M19/M21 A2983 RMK AO1 |
| 03:35 MST |  Overcast | -20°C / -4°F | -21°C / -6°F | 92% | 1010 mb (29.83 in) | Calm | - | 10SM |
| | KGXY 251035Z AUTO 00000KT 10SM BKN060 OVC120 M20/M21 A2984 RMK AO1 |
| 03:15 MST |  Overcast | -22°C / -8°F | -23°C / -9°F | 92% | 1010 mb (29.83 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KGXY 251015Z AUTO 15008KT 10SM FEW060 OVC110 M22/M23 A2984 RMK AO1 |
| 02:55 MST |  Overcast | -22°C / -8°F | -24°C / -11°F | 84% | 1010 mb (29.83 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KGXY 250955Z AUTO 19005KT 10SM OVC110 M22/M24 A2984 RMK AO1 |
| 02:35 MST |  Partly Cloudy | -23°C / -9°F | -23°C / -9°F | 100% | 1010 mb (29.83 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KGXY 250935Z AUTO 18006KT 10SM SCT120 M23/M23 A2983 RMK AO1 |
| 02:15 MST |  Clear | -23°C / -9°F | -26°C / -15°F | 77% | 1010 mb (29.83 in) | Calm | - | 8SM |
| | KGXY 250915Z AUTO 00000KT 8SM CLR M23/M26 A2982 RMK AO1 |
| 01:55 MST |  Clear | -22°C / -8°F | -26°C / -15°F | 70% | 1010 mb (29.83 in) | Calm | - | 8SM |
| | KGXY 250855Z AUTO 00000KT 8SM CLR M22/M26 A2982 RMK AO1 57010 |
| 01:35 MST |  Partly Cloudy | -23°C / -9°F | -24°C / -11°F | 92% | 1010 mb (29.83 in) | Calm | - | 8SM |
| | KGXY 250835Z AUTO 00000KT 8SM FEW070 SCT120 M23/M24 A2983 RMK AO1 |
| 01:15 MST |  Partly Cloudy | -22°C / -8°F | -24°C / -11°F | 84% | 1010 mb (29.83 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KGXY 250815Z AUTO 23004KT 10SM FEW070 SCT120 M22/M24 A2983 RMK AO1 |
| 00:55 MST |  Mostly Cloudy | -22°C / -8°F | -25°C / -13°F | 77% | 1010 mb (29.83 in) | Calm | - | 9SM |
| | KGXY 250755Z AUTO 00000KT 9SM BKN120 M22/M25 A2984 RMK AO1 |
| 00:35 MST |  Mostly Cloudy | -21°C / -6°F | -23°C / -9°F | 84% | 1010 mb (29.83 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KGXY 250735Z AUTO 20005KT 10SM BKN120 M21/M23 A2984 RMK AO1 |
| 00:15 MST |  Overcast | -22°C / -8°F | -23°C / -9°F | 92% | 1011 mb (29.85 in) | Calm | - | 10SM |
| | KGXY 250715Z AUTO 00000KT 10SM OVC120 M22/M23 A2986 RMK AO1 |