| 21:35 MST |  Clear | 7°C / 45°F | -9°C / 16°F | 31% | 1014 mb (29.94 in) | W 13 kph (W 8.1 mph) | - | 10SM |
| | KSGU 030435Z AUTO 27007KT 10SM CLR 07/M09 A2994 RMK AO1 |
| 21:15 MST |  Clear | 7°C / 45°F | -9°C / 16°F | 31% | 1014 mb (29.94 in) | WNW 15 kph (WNW 9.2 mph) | - | 10SM |
| | KSGU 030415Z AUTO 29008KT 10SM CLR 07/M09 A2994 RMK AO1 |
| 20:55 MST |  Clear | 8°C / 46°F | -8°C / 18°F | 32% | 1014 mb (29.94 in) | W 9 kph (W 5.8 mph) | - | 10SM |
| | KSGU 030355Z AUTO 27005KT 10SM CLR 08/M08 A2994 RMK AO1 |
| 20:35 MST |  Clear | 8°C / 46°F | -8°C / 18°F | 32% | 1014 mb (29.94 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KSGU 030335Z AUTO 28010KT 10SM CLR 08/M08 A2993 RMK AO1 |
| 20:15 MST |  Clear | 8°C / 46°F | -8°C / 18°F | 32% | 1014 mb (29.94 in) | W 9 kph (W 5.8 mph) | - | 10SM |
| | KSGU 030315Z AUTO 28005KT 10SM CLR 08/M08 A2993 RMK AO1 |
| 19:55 MST |  Clear | 8°C / 46°F | -8°C / 18°F | 32% | 1014 mb (29.94 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KSGU 030255Z AUTO 25006KT 10SM CLR 08/M08 A2993 RMK AO1 52014 |
| 19:35 MST |  Clear | 9°C / 48°F | -8°C / 18°F | 29% | 1014 mb (29.94 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSGU 030235Z AUTO 22004KT 10SM CLR 09/M08 A2993 RMK AO1 |
| 19:15 MST |  Clear | 9°C / 48°F | -8°C / 18°F | 29% | 1013 mb (29.91 in) | NE 11 kph (NE 6.9 mph) | - | 10SM |
| | KSGU 030215Z AUTO 03006KT 10SM CLR 09/M08 A2992 RMK AO1 |
| 18:55 MST |  Clear | 10°C / 50°F | -8°C / 18°F | 28% | 1013 mb (29.91 in) | NW 15 kph (NW 9.2 mph) | - | 10SM |
| | KSGU 030155Z AUTO 32008KT 10SM CLR 10/M08 A2992 RMK AO1 |
| 18:35 MST |  Clear | 11°C / 52°F | -7°C / 19°F | 28% | 1013 mb (29.91 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KSGU 030135Z AUTO 31009KT 10SM CLR 11/M07 A2991 RMK AO1 |
| 18:15 MST |  Clear | 11°C / 52°F | -7°C / 19°F | 28% | 1013 mb (29.91 in) | NW 24 kph (NW 15 mph) | - | 10SM |
| | KSGU 030115Z AUTO 32013KT 10SM CLR 11/M07 A2990 RMK AO1 |
| 17:55 MST |  Clear | 11°C / 52°F | -7°C / 19°F | 28% | 1012 mb (29.88 in) | W 15 kph (W 9.2 mph) | - | 10SM |
| | KSGU 030055Z AUTO 28008KT 10SM CLR 11/M07 A2988 RMK AO1 |
| 17:35 MST |  Clear | 12°C / 54°F | -7°C / 19°F | 26% | 1012 mb (29.88 in) | NW 11 kph (NW 6.9 mph) | - | 10SM |
| | KSGU 030035Z AUTO 30006KT 10SM CLR 12/M07 A2989 RMK AO1 |
| 17:15 MST |  Clear | 12°C / 54°F | -7°C / 19°F | 26% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KSGU 030015Z AUTO 00000KT 10SM CLR 12/M07 A2989 RMK AO1 |
| 16:55 MST |  Clear | 12°C / 54°F | -7°C / 19°F | 26% | 1012 mb (29.88 in) | SE 6 kph (SE 3.5 mph) | - | 10SM |
| | KSGU 022355Z AUTO 12003KT 10SM CLR 12/M07 A2989 RMK AO1 10130 20070 57003 |
| 16:35 MST |  Clear | 12°C / 54°F | -6°C / 21°F | 28% | 1012 mb (29.88 in) | ENE 6 kph (ENE 3.5 mph) | - | 10SM |
| | KSGU 022335Z AUTO 07003KT 10SM CLR 12/M06 A2988 RMK AO1 |
| 16:15 MST |  Clear | 13°C / 55°F | -6°C / 21°F | 26% | 1012 mb (29.88 in) | ENE 9 kph (ENE 5.8 mph) | - | 10SM |
| | KSGU 022315Z AUTO 06005KT 10SM CLR 13/M06 A2989 RMK AO1 |
| 15:55 MST |  Clear | 13°C / 55°F | -6°C / 21°F | 26% | 1012 mb (29.88 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KSGU 022255Z AUTO 08003KT 10SM CLR 13/M06 A2989 RMK AO1 |
| 15:35 MST |  Clear | 13°C / 55°F | -6°C / 21°F | 26% | 1012 mb (29.88 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KSGU 022235Z AUTO 09005KT 10SM CLR 13/M06 A2988 RMK AO1 |
| 15:15 MST |  Clear | 12°C / 54°F | -6°C / 21°F | 28% | 1012 mb (29.88 in) | ESE 7 kph (ESE 4.6 mph) | - | 10SM |
| | KSGU 022215Z AUTO 11004KT 10SM CLR 12/M06 A2988 RMK AO1 |
| 14:55 MST |  Clear | 12°C / 54°F | -7°C / 19°F | 26% | 1012 mb (29.88 in) | ESE 7 kph (ESE 4.6 mph) | - | 10SM |
| | KSGU 022155Z AUTO 11004KT 10SM CLR 12/M07 A2988 RMK AO1 |
| 14:35 MST |  Clear | 12°C / 54°F | -7°C / 19°F | 26% | 1012 mb (29.88 in) | ENE 9 kph (ENE 5.8 mph) | - | 10SM |
| | KSGU 022135Z AUTO 07005KT 10SM CLR 12/M07 A2989 RMK AO1 |
| 14:15 MST |  Clear | 12°C / 54°F | -7°C / 19°F | 26% | 1013 mb (29.91 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KSGU 022115Z AUTO 08005KT 10SM CLR 12/M07 A2990 RMK AO1 |
| 13:55 MST |  Clear | 12°C / 54°F | -7°C / 19°F | 26% | 1013 mb (29.91 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KSGU 022055Z AUTO 10004KT 10SM CLR 12/M07 A2990 RMK AO1 |
| 13:35 MST |  Clear | 12°C / 54°F | -7°C / 19°F | 26% | 1013 mb (29.91 in) | ENE 9 kph (ENE 5.8 mph) | - | 10SM |
| | KSGU 022035Z AUTO 07005KT 10SM CLR 12/M07 A2991 RMK AO1 |
| 13:15 MST |  Clear | 11°C / 52°F | -7°C / 19°F | 28% | 1013 mb (29.91 in) | NE 7 kph (NE 4.6 mph) | - | 10SM |
| | KSGU 022015Z AUTO 05004KT 10SM CLR 11/M07 A2992 RMK AO1 |
| 12:55 MST |  Clear | 11°C / 52°F | -7°C / 19°F | 28% | 1014 mb (29.94 in) | Calm | - | 10SM |
| | KSGU 021955Z AUTO 00000KT 10SM CLR 11/M07 A2993 RMK AO1 |
| 12:15 MST |  Clear | 9°C / 48°F | -7°C / 19°F | 32% | 1015 mb (29.97 in) | Calm | - | 10SM |
| | KSGU 021915Z AUTO 00000KT 10SM CLR 09/M07 A2996 RMK AO1 |
| 11:55 MST |  Clear | 8°C / 46°F | -8°C / 18°F | 32% | 1015 mb (29.97 in) | ENE 6 kph (ENE 3.5 mph) | - | 10SM |
| | KSGU 021855Z AUTO 07003KT 10SM CLR 08/M08 A2996 RMK AO1 |
| 11:35 MST |  Clear | 8°C / 46°F | -8°C / 18°F | 32% | 1015 mb (29.97 in) | ENE 6 kph (ENE 3.5 mph) | - | 10SM |
| | KSGU 021835Z AUTO 06003KT 10SM CLR 08/M08 A2998 RMK AO1 |
| 11:15 MST |  Clear | 7°C / 45°F | -9°C / 16°F | 31% | 1016 mb (30 in) | Calm | - | 10SM |
| | KSGU 021815Z AUTO 00000KT 10SM CLR 07/M09 A2999 RMK AO1 TSNO |
| 10:55 MST |  Clear | 7°C / 45°F | -9°C / 16°F | 31% | 1016 mb (30 in) | Calm | - | 10SM |
| | KSGU 021755Z AUTO 00000KT 10SM CLR 07/M09 A3000 RMK AO1 |
| 10:35 MST |  Clear | 6°C / 43°F | -9°C / 16°F | 34% | 1016 mb (30 in) | Calm | - | 10SM |
| | KSGU 021735Z AUTO 00000KT 10SM CLR 06/M09 A3000 RMK AO1 |
| 10:15 MST |  Clear | 4°C / 39°F | -9°C / 16°F | 39% | 1016 mb (30 in) | Calm | - | 10SM |
| | KSGU 021715Z AUTO 00000KT 10SM CLR 04/M09 A3000 RMK AO1 TSNO |