| 03:55 MST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 996 mb (29.41 in) | N 11 kph (N 6.9 mph) | - | 1 3/4SM |
| | KPVU 081055Z 01006KT 1 3/4SM OVC014 M06/M07 A2940 RMK AO1 |
| 03:35 MST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 995 mb (29.38 in) | NW 20 kph (NW 12.7 mph) | - | 4SM |
| | KPVU 081035Z 32011KT 4SM SCT008 OVC012 M06/M07 A2938 RMK AO1 |
| 03:15 MST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 995 mb (29.38 in) | NW 11 kph (NW 6.9 mph) | - | 1 1/4SM |
| | KPVU 081015Z 32006KT 1 1/4SM OVC008 M06/M08 A2938 RMK AO1 |
| 02:55 MST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 995 mb (29.38 in) | NNW 19 kph (NNW 11.5 mph) | - | 1 3/4SM |
| | KPVU 080955Z 33010KT 1 3/4SM OVC008 M06/M07 A2937 RMK AO1 |
| 02:35 MST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 994 mb (29.35 in) | NW 26 kph (NW 16.1 mph) | - | 2 1/2SM |
| | KPVU 080935Z 32014KT 2 1/2SM BKN010 OVC017 M06/M07 A2935 RMK AO1 TSNO |
| 02:15 MST |  Overcast | -5°C / 23°F | -7°C / 19°F | 86% | 994 mb (29.35 in) | NW 22 kph (NW 13.8 mph) | - | 5SM |
| | KPVU 080915Z 32012G16KT 5SM SCT017 BKN026 OVC035 M05/M07 A2934 RMK AO1 TSNO |
| 01:55 MST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 993 mb (29.32 in) | NW 28 kph (NW 17.3 mph) | - | 10SM |
| | KPVU 080855Z 30015KT 10SM OVC035 M05/M08 A2932 RMK AO1 57014 |
| 01:35 MST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 993 mb (29.32 in) | NW 28 kph (NW 17.3 mph) | - | 10SM |
| | KPVU 080835Z 31015KT 10SM SCT033 BKN042 OVC050 M05/M08 A2931 RMK AO1 |
| 01:15 MST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 992 mb (29.29 in) | NW 24 kph (NW 15 mph) | - | 10SM |
| | KPVU 080815Z 32013KT 10SM FEW036 OVC060 M05/M08 A2930 RMK AO1 |
| 00:55 MST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 992 mb (29.29 in) | NW 20 kph (NW 12.7 mph) | - | 10SM |
| | KPVU 080755Z 32011KT 10SM BKN038 BKN048 OVC060 M04/M08 A2930 RMK AO1 |
| 00:35 MST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 992 mb (29.29 in) | N 19 kph (N 11.5 mph) | - | 10SM |
| | KPVU 080735Z 36010KT 10SM BKN042 OVC050 M04/M08 A2930 RMK AO1 |
| 00:15 MST |  Overcast | -4°C / 25°F | -6°C / 21°F | 86% | 993 mb (29.32 in) | NNW 19 kph (NNW 11.5 mph) | - | 10SM |
| | KPVU 080715Z 34010KT 10SM BKN038 OVC047 M04/M06 A2932 RMK AO1 |