| 15:52 MST |  Clear | 7°C / 45°F | -9°C / 16°F | 31% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KALS 302252Z AUTO 00000KT 10SM CLR 07/M09 A3012 RMK AO2 SLP224 T00671089 |
| 14:52 MST |  Clear | 6°C / 43°F | -8°C / 18°F | 36% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KALS 302152Z AUTO 00000KT 10SM CLR 06/M08 A3013 RMK AO2 SLP228 T00561078 |
| 13:52 MST |  Clear | 5°C / 41°F | -7°C / 19°F | 42% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KALS 302052Z AUTO 00000KT 10SM CLR 05/M07 A3016 RMK AO2 SLP238 T00501072 57028 |
| 12:52 MST |  Clear | 4°C / 39°F | -6°C / 21°F | 48% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KALS 301952Z AUTO 00000KT 10SM CLR 04/M06 A3018 RMK AO2 SLP245 T00391061 |
| 11:52 MST |  Clear | 2°C / 36°F | -6°C / 21°F | 56% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KALS 301852Z AUTO 00000KT 10SM CLR 02/M06 A3023 RMK AO2 SLP264 T00221061 |
| 10:52 MST |  Clear | -1°C / 30°F | -7°C / 19°F | 64% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KALS 301752Z AUTO 00000KT 10SM CLR M01/M07 A3026 RMK AO2 SLP282 T10061067 11006 21156 58003 |
| 09:52 MST |  Clear | -3°C / 27°F | -7°C / 19°F | 74% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KALS 301652Z AUTO 00000KT 10SM CLR M03/M07 A3028 RMK AO2 SLP297 T10331072 |
| 08:52 MST |  Clear | -8°C / 18°F | -9°C / 16°F | 93% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KALS 301552Z AUTO 00000KT 10SM CLR M08/M09 A3028 RMK AO2 SLP303 T10781094 |
| 07:52 MST |  Clear | -13°C / 9°F | -14°C / 7°F | 92% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KALS 301452Z AUTO 00000KT 10SM CLR M13/M14 A3027 RMK AO2 SLP313 T11281144 53009 |
| 06:52 MST |  Clear | -16°C / 3°F | -17°C / 1°F | 92% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KALS 301352Z AUTO 00000KT 10SM CLR M16/M17 A3026 RMK AO2 SLP319 T11561172 |
| 05:52 MST |  Clear | -13°C / 9°F | -16°C / 3°F | 78% | 1024 mb (30.24 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KALS 301252Z AUTO 31003KT 10SM CLR M13/M16 A3024 RMK AO2 SLP298 T11331156 |
| 04:52 MST |  Clear | -14°C / 7°F | -17°C / 1°F | 78% | 1024 mb (30.24 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KALS 301152Z AUTO 21003KT 10SM CLR M14/M17 A3024 RMK AO2 SLP289 T11441167 11089 21150 51001 |
| 03:52 MST |  Clear | -14°C / 7°F | -16°C / 3°F | 85% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KALS 301052Z AUTO 00000KT 10SM CLR M14/M16 A3024 RMK AO2 SLP278 T11441161 |
| 02:52 MST |  Clear | -14°C / 7°F | -14°C / 7°F | 100% | 1024 mb (30.24 in) | Calm | - | 9SM |
| | KALS 300952Z AUTO 00000KT 9SM CLR M14/M14 A3024 RMK AO2 SLP271 T11391144 |
| 01:52 MST |  Clear | -13°C / 9°F | -14°C / 7°F | 92% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KALS 300852Z AUTO 00000KT 10SM CLR M13/M14 A3023 RMK AO2 SLP266 T11281144 51005 |
| 00:52 MST |  Clear | -11°C / 12°F | -13°C / 9°F | 85% | 1024 mb (30.24 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KALS 300752Z AUTO 30003KT 10SM CLR M11/M13 A3023 RMK AO2 SLP264 T11111133 |