| 12:55 MST |  Clear | 4°C / 39°F | -4°C / 25°F | 56% | 1020 mb (30.12 in) | NE 9 kph (NE 5.8 mph) | - | 10SM |
| | KCOD 291955Z 04005KT 10SM CLR 04/M04 A3012 RMK AO1 |
| 12:35 MST |  Clear | 4°C / 39°F | -4°C / 25°F | 56% | 1020 mb (30.12 in) | NE 7 kph (NE 4.6 mph) | - | 10SM |
| | KCOD 291935Z 05004KT 10SM CLR 04/M04 A3012 RMK AO1 |
| 12:15 MST |  Clear | 3°C / 37°F | -4°C / 25°F | 60% | 1020 mb (30.12 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KCOD 291915Z 36003KT 10SM CLR 03/M04 A3013 RMK AO1 |
| 11:55 MST |  Clear | 4°C / 39°F | -6°C / 21°F | 48% | 1020 mb (30.12 in) | ENE 7 kph (ENE 4.6 mph) | - | 10SM |
| | KCOD 291855Z 07004KT 10SM CLR 04/M06 A3013 RMK AO1 |
| 11:35 MST |  Clear | 3°C / 37°F | -4°C / 25°F | 60% | 1021 mb (30.15 in) | ESE 7 kph (ESE 4.6 mph) | - | 10SM |
| | KCOD 291835Z 11004KT 10SM CLR 03/M04 A3014 RMK AO1 |
| 11:15 MST |  Clear | 1°C / 34°F | -5°C / 23°F | 65% | 1020 mb (30.12 in) | SE 9 kph (SE 5.8 mph) | - | 10SM |
| | KCOD 291815Z 13005KT 10SM CLR 01/M05 A3013 RMK AO1 |
| 10:55 MST |  Clear | -1°C / 30°F | -5°C / 23°F | 75% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KCOD 291755Z 00000KT 10SM CLR M01/M05 A3014 RMK AO1 11010 21090 52010 |
| 10:35 MST |  Clear | -2°C / 28°F | -6°C / 21°F | 74% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KCOD 291735Z 00000KT 10SM CLR M02/M06 A3015 RMK AO1 |
| 10:15 MST |  Clear | -3°C / 27°F | -6°C / 21°F | 80% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KCOD 291715Z 00000KT 10SM CLR M03/M06 A3016 RMK AO1 |
| 09:55 MST |  Clear | -4°C / 25°F | -7°C / 19°F | 80% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KCOD 291655Z 00000KT 10SM CLR M04/M07 A3017 RMK AO1 |
| 09:35 MST |  Clear | -3°C / 27°F | -7°C / 19°F | 74% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KCOD 291635Z 00000KT 10SM CLR M03/M07 A3015 RMK AO1 |
| 09:15 MST |  Clear | -4°C / 25°F | -7°C / 19°F | 80% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KCOD 291615Z 00000KT 10SM CLR M04/M07 A3013 RMK AO1 |
| 08:55 MST |  Clear | -6°C / 21°F | -7°C / 19°F | 93% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KCOD 291555Z 00000KT 10SM CLR M06/M07 A3013 RMK AO1 |
| 08:35 MST |  Clear | -7°C / 19°F | -8°C / 18°F | 93% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KCOD 291535Z 00000KT 10SM CLR M07/M08 A3013 RMK AO1 |
| 08:15 MST |  Clear | -8°C / 18°F | -9°C / 16°F | 93% | 1020 mb (30.12 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KCOD 291515Z 19003KT 10SM CLR M08/M09 A3012 RMK AO1 |
| 07:55 MST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1020 mb (30.12 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KCOD 291455Z 16003KT 10SM CLR M09/M11 A3011 RMK AO1 52010 |
| 07:35 MST |  Clear | -8°C / 18°F | -9°C / 16°F | 93% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KCOD 291435Z 00000KT 10SM CLR M08/M09 A3011 RMK AO1 |
| 07:15 MST |  Clear | -8°C / 18°F | -9°C / 16°F | 93% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 291415Z 00000KT 10SM CLR M08/M09 A3010 RMK AO1 |
| 06:55 MST |  Clear | -9°C / 16°F | -9°C / 16°F | 100% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 291355Z 00000KT 10SM CLR M09/M09 A3009 RMK AO1 |
| 06:35 MST |  Clear | -8°C / 18°F | -9°C / 16°F | 93% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 291335Z 00000KT 10SM CLR M08/M09 A3009 RMK AO1 |
| 06:15 MST |  Clear | -9°C / 16°F | -10°C / 14°F | 93% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 291315Z 00000KT 10SM CLR M09/M10 A3008 RMK AO1 |
| 05:55 MST |  Clear | -9°C / 16°F | -12°C / 10°F | 79% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 291255Z 00000KT 10SM CLR M09/M12 A3008 RMK AO1 |
| 05:35 MST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KCOD 291235Z 00000KT 10SM CLR M09/M11 A3007 RMK AO1 |
| 05:15 MST |  Clear | -9°C / 16°F | -12°C / 10°F | 79% | 1019 mb (30.09 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KCOD 291215Z 17003KT 10SM CLR M09/M12 A3009 RMK AO1 |
| 04:55 MST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 291155Z 00000KT 10SM CLR M08/M11 A3008 RMK AO1 11060 21090 57003 |
| 04:35 MST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 291135Z 00000KT 10SM CLR M08/M11 A3010 RMK AO1 |
| 04:15 MST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 291115Z 00000KT 10SM CLR M08/M11 A3009 RMK AO1 |
| 03:55 MST |  Clear | -9°C / 16°F | -12°C / 10°F | 79% | 1019 mb (30.09 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KCOD 291055Z 30003KT 10SM CLR M09/M12 A3009 RMK AO1 |
| 03:35 MST |  Clear | -8°C / 18°F | -10°C / 14°F | 86% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 291035Z 00000KT 10SM CLR M08/M10 A3009 RMK AO1 |
| 03:15 MST |  Clear | -7°C / 19°F | -12°C / 10°F | 68% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 291015Z 00000KT 10SM CLR M07/M12 A3009 RMK AO1 |
| 02:55 MST |  Clear | -7°C / 19°F | -10°C / 14°F | 79% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 290955Z 00000KT 10SM CLR M07/M10 A3009 RMK AO1 |
| 02:35 MST |  Clear | -8°C / 18°F | -12°C / 10°F | 73% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 290935Z 00000KT 10SM CLR M08/M12 A3009 RMK AO1 |
| 02:15 MST |  Clear | -9°C / 16°F | -12°C / 10°F | 79% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 290915Z 00000KT 10SM CLR M09/M12 A3009 RMK AO1 |
| 01:55 MST |  Clear | -8°C / 18°F | -12°C / 10°F | 73% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 290855Z 00000KT 10SM CLR M08/M12 A3009 RMK AO1 57003 |
| 01:35 MST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1019 mb (30.09 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KCOD 290835Z 18003KT 10SM CLR M08/M11 A3009 RMK AO1 |
| 01:15 MST |  Clear | -8°C / 18°F | -12°C / 10°F | 73% | 1019 mb (30.09 in) | Calm | - | 9SM |
| | KCOD 290815Z 00000KT 9SM CLR M08/M12 A3009 RMK AO1 |
| 00:55 MST |  Clear | -7°C / 19°F | -10°C / 14°F | 79% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 290755Z 00000KT 10SM CLR M07/M10 A3009 RMK AO1 |
| 00:35 MST |  Clear | -8°C / 18°F | -9°C / 16°F | 93% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KCOD 290735Z 00000KT 10SM CLR M08/M09 A3009 RMK AO1 |
| 00:15 MST |  Clear | -6°C / 21°F | -8°C / 18°F | 86% | 1019 mb (30.09 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KCOD 290715Z 19004KT 10SM CLR M06/M08 A3010 RMK AO1 |