| 05:55 MST |  Overcast | -11°C / 12°F | -18°C / 0°F | 57% | 1028 mb (30.36 in) | NE 30 kph (NE 18.4 mph) | - | 10SM |
| | KGPI 061255Z AUTO 04016G19KT 10SM FEW037 BKN044 OVC100 M11/M18 A3036 RMK AO2 SLP329 T11111183 |
| 04:55 MST |  Overcast | -11°C / 12°F | -18°C / 0°F | 57% | 1028 mb (30.36 in) | NE 26 kph (NE 16.1 mph) | - | 10SM |
| | KGPI 061155Z AUTO 05014KT 10SM BKN030 OVC040 M11/M18 A3035 RMK AO2 SLP327 T11061178 11078 21106 51009 |
| 04:43 MST |  Overcast | -11°C / 12°F | -18°C / 0°F | 57% | 1028 mb (30.36 in) | NE 28 kph (NE 17.3 mph) | - | 10SM |
| | KGPI 061143Z AUTO 05015KT 10SM BKN030 OVC039 M11/M18 A3036 RMK AO2 |
| 04:19 MST |  Overcast | -11°C / 12°F | -18°C / 0°F | 57% | 1028 mb (30.36 in) | NE 24 kph (NE 15 mph) | - | 10SM |
| | KGPI 061119Z AUTO 05013KT 10SM BKN028 OVC036 M11/M18 A3036 RMK AO2 |
| 03:55 MST |  Overcast | -10°C / 14°F | -18°C / 0°F | 52% | 1028 mb (30.36 in) | NE 26 kph (NE 16.1 mph) | - | 10SM |
| | KGPI 061055Z AUTO 05014G19KT 10SM BKN030 OVC040 M10/M18 A3035 RMK AO2 SLP322 T11001178 |
| 02:55 MST |  Overcast | -9°C / 16°F | -17°C / 1°F | 53% | 1027 mb (30.33 in) | ENE 24 kph (ENE 15 mph) | - | 10SM |
| | KGPI 060955Z AUTO 06013G19KT 10SM BKN032 OVC044 M09/M17 A3034 RMK AO2 SLP320 T10941172 |
| 01:55 MST |  Overcast | -9°C / 16°F | -17°C / 1°F | 53% | 1027 mb (30.33 in) | NE 22 kph (NE 13.8 mph) | - | 10SM |
| | KGPI 060855Z AUTO 05012KT 10SM BKN030 OVC040 M09/M17 A3033 RMK AO2 SLP312 T10891172 51006 |
| 00:55 MST |  Overcast | -9°C / 16°F | -16°C / 3°F | 57% | 1027 mb (30.33 in) | ENE 24 kph (ENE 15 mph) | - | 10SM |
| | KGPI 060755Z AUTO 06013KT 10SM BKN030 OVC041 M09/M16 A3032 RMK AO2 SLP310 T10891156 |