| 07:55 MST |  Overcast | -9°C / 16°F | -13°C / 9°F | 73% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KGPI 241455Z 00000KT 10SM OVC037 M09/M13 A3039 RMK AO2 SLP341 T10941128 53007 |
| 06:55 MST |  Overcast | -9°C / 16°F | -13°C / 9°F | 73% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KGPI 241355Z 00000KT 10SM OVC037 M09/M13 A3038 RMK AO2 SLP337 T10941128 |
| 05:55 MST |  Overcast | -9°C / 16°F | -13°C / 9°F | 73% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KGPI 241255Z 00000KT 10SM OVC039 M09/M13 A3036 RMK AO2 SLP329 T10941128 |
| 04:55 MST |  Overcast | -9°C / 16°F | -12°C / 10°F | 79% | 1028 mb (30.36 in) | NE 6 kph (NE 3.5 mph) | - | 10SM |
| | KGPI 241155Z 04003KT 10SM OVC037 M09/M12 A3036 RMK AO2 SLP328 T10941122 11089 21122 51002 |
| 03:55 MST |  Overcast | -11°C / 12°F | -13°C / 9°F | 85% | 1028 mb (30.36 in) | WNW 6 kph (WNW 3.5 mph) | - | 10SM |
| | KGPI 241055Z 29003KT 10SM OVC037 M11/M13 A3036 RMK AO2 SLP328 T11061133 |
| 02:55 MST |  Overcast | -12°C / 10°F | -14°C / 7°F | 85% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KGPI 240955Z 00000KT 10SM OVC037 M12/M14 A3036 RMK AO2 SLP328 T11171139 |
| 01:55 MST |  Clear | -12°C / 10°F | -14°C / 7°F | 85% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KGPI 240855Z 00000KT 10SM CLR M12/M14 A3036 RMK AO2 SLP327 T11221144 53004 |
| 00:55 MST |  Partly Cloudy | -11°C / 12°F | -13°C / 9°F | 85% | 1028 mb (30.36 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KGPI 240755Z 36003KT 10SM FEW043 M11/M13 A3035 RMK AO2 SLP323 T11061133 |