| 02:18 MST |  Clear | 8°C / 46°F | 3°C / 37°F | 71% | 1008 mb (29.77 in) | SW 15 kph (SW 9.2 mph) | - | 10SM |
| | KIWA 230918Z AUTO 23008KT 10SM CLR 08/03 A2976 RMK AO2 |
| 01:58 MST |  Clear | 8°C / 46°F | 3°C / 37°F | 71% | 1008 mb (29.77 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KIWA 230858Z AUTO 24009KT 10SM CLR 08/03 A2976 RMK AO2 |
| 01:38 MST |  Clear | 7°C / 45°F | 4°C / 39°F | 81% | 1008 mb (29.77 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KIWA 230838Z AUTO 20009KT 10SM CLR 07/04 A2976 RMK AO2 |
| 01:18 MST |  Clear | 8°C / 46°F | 4°C / 39°F | 76% | 1008 mb (29.77 in) | SW 13 kph (SW 8.1 mph) | - | 10SM |
| | KIWA 230818Z AUTO 21007KT 10SM CLR 08/04 A2976 RMK AO2 |
| 00:58 MST |  Clear | 6°C / 43°F | 4°C / 39°F | 87% | 1007 mb (29.74 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KIWA 230758Z AUTO 19006KT 10SM CLR 06/04 A2975 RMK AO2 |
| 00:38 MST |  Clear | 8°C / 46°F | 6°C / 43°F | 87% | 1007 mb (29.74 in) | SSE 13 kph (SSE 8.1 mph) | - | 10SM |
| | KIWA 230738Z AUTO 16007KT 10SM CLR 08/06 A2975 RMK AO2 |
| 00:18 MST |  Clear | 7°C / 45°F | 5°C / 41°F | 87% | 1007 mb (29.74 in) | SE 7 kph (SE 4.6 mph) | - | 10SM |
| | KIWA 230718Z AUTO 14004KT 10SM CLR 07/05 A2975 RMK AO2 |