| 17:55 MST |  Clear | -11°C / 12°F | -16°C / 3°F | 67% | 1016 mb (30 in) | Calm | - | 10SM |
| | KEUL 120055Z AUTO 00000KT 10SM CLR M11/M16 A3000 RMK AO1 |
| 17:35 MST |  Clear | -10°C / 14°F | -17°C / 1°F | 57% | 1016 mb (30 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KEUL 120035Z AUTO 26003KT 10SM CLR M10/M17 A3001 RMK AO1 |
| 17:15 MST |  Clear | -10°C / 14°F | -17°C / 1°F | 57% | 1016 mb (30 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KEUL 120015Z AUTO 26003KT 10SM CLR M10/M17 A3001 RMK AO1 |
| 16:55 MST |  Clear | -9°C / 16°F | -17°C / 1°F | 53% | 1016 mb (30 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KEUL 112355Z AUTO 27004KT 10SM CLR M09/M17 A3001 RMK AO1 11090 21130 410901190 57014 |
| 16:35 MST |  Clear | -9°C / 16°F | -16°C / 3°F | 57% | 1017 mb (30.03 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KEUL 112335Z AUTO 24004KT 10SM CLR M09/M16 A3002 RMK AO1 |
| 16:15 MST |  Clear | -9°C / 16°F | -16°C / 3°F | 57% | 1017 mb (30.03 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KEUL 112315Z AUTO 25004KT 10SM CLR M09/M16 A3002 RMK AO1 |
| 15:55 MST |  Clear | -10°C / 14°F | -16°C / 3°F | 62% | 1017 mb (30.03 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KEUL 112255Z AUTO 26004KT 10SM CLR M10/M16 A3003 RMK AO1 |
| 15:35 MST |  Clear | -10°C / 14°F | -17°C / 1°F | 57% | 1017 mb (30.03 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KEUL 112235Z AUTO 25004KT 10SM CLR M10/M17 A3003 RMK AO1 |
| 15:15 MST |  Clear | -9°C / 16°F | -16°C / 3°F | 57% | 1017 mb (30.03 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KEUL 112215Z AUTO 25004KT 10SM CLR M09/M16 A3003 RMK AO1 |
| 14:55 MST |  Clear | -9°C / 16°F | -16°C / 3°F | 57% | 1017 mb (30.03 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KEUL 112155Z AUTO 26004KT 10SM CLR M09/M16 A3003 RMK AO1 |
| 14:35 MST |  Clear | -9°C / 16°F | -16°C / 3°F | 57% | 1017 mb (30.03 in) | WNW 7 kph (WNW 4.6 mph) | - | 10SM |
| | KEUL 112135Z AUTO 29004KT 10SM CLR M09/M16 A3004 RMK AO1 |
| 14:15 MST |  Clear | -9°C / 16°F | -16°C / 3°F | 57% | 1017 mb (30.03 in) | WNW 6 kph (WNW 3.5 mph) | - | 10SM |
| | KEUL 112115Z AUTO 29003KT 10SM CLR M09/M16 A3004 RMK AO1 |
| 13:55 MST |  Clear | -10°C / 14°F | -17°C / 1°F | 57% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KEUL 112055Z AUTO 00000KT 10SM CLR M10/M17 A3005 RMK AO1 57034 |
| 13:35 MST |  Clear | -10°C / 14°F | -17°C / 1°F | 57% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KEUL 112035Z AUTO 00000KT 10SM CLR M10/M17 A3006 RMK AO1 |
| 13:15 MST |  Clear | -11°C / 12°F | -17°C / 1°F | 62% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KEUL 112015Z AUTO 00000KT 10SM CLR M11/M17 A3007 RMK AO1 |
| 12:55 MST |  Clear | -11°C / 12°F | -17°C / 1°F | 62% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KEUL 111955Z AUTO 00000KT 10SM CLR M11/M17 A3008 RMK AO1 |
| 12:35 MST |  Clear | -10°C / 14°F | -16°C / 3°F | 62% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KEUL 111935Z AUTO 00000KT 10SM CLR M10/M16 A3010 RMK AO1 |
| 12:15 MST |  Clear | -12°C / 10°F | -17°C / 1°F | 67% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KEUL 111915Z AUTO 00000KT 10SM CLR M12/M17 A3011 RMK AO1 |
| 11:55 MST |  Clear | -12°C / 10°F | -17°C / 1°F | 67% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KEUL 111855Z AUTO 00000KT 10SM CLR M12/M17 A3012 RMK AO1 |
| 11:35 MST |  Clear | -13°C / 9°F | -18°C / 0°F | 66% | 1020 mb (30.12 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KEUL 111835Z AUTO 24003KT 10SM CLR M13/M18 A3013 RMK AO1 |
| 11:15 MST |  Clear | -13°C / 9°F | -18°C / 0°F | 66% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEUL 111815Z AUTO 00000KT 10SM CLR M13/M18 A3014 RMK AO1 |
| 10:55 MST |  Clear | -13°C / 9°F | -18°C / 0°F | 66% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEUL 111755Z AUTO 00000KT 10SM CLR M13/M18 A3015 RMK AO1 11130 21190 52003 |
| 10:35 MST |  Clear | -13°C / 9°F | -18°C / 0°F | 66% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEUL 111735Z AUTO 00000KT 10SM CLR M13/M18 A3014 RMK AO1 |
| 10:15 MST |  Clear | -14°C / 7°F | -19°C / -2°F | 66% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEUL 111715Z AUTO 00000KT 10SM CLR M14/M19 A3015 RMK AO1 |
| 09:55 MST |  Clear | -16°C / 3°F | -19°C / -2°F | 78% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEUL 111655Z AUTO 00000KT 10SM CLR M16/M19 A3015 RMK AO1 |
| 09:35 MST |  Clear | -16°C / 3°F | -19°C / -2°F | 78% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEUL 111635Z AUTO 00000KT 10SM CLR M16/M19 A3015 RMK AO1 |
| 09:15 MST |  Clear | -17°C / 1°F | -21°C / -6°F | 71% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEUL 111615Z AUTO 00000KT 10SM CLR M17/M21 A3015 RMK AO1 |
| 08:55 MST |  Clear | -19°C / -2°F | -23°C / -9°F | 71% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEUL 111555Z AUTO 00000KT 10SM CLR M19/M23 A3014 RMK AO1 |
| 08:35 MST |  Clear | -18°C / 0°F | -22°C / -8°F | 71% | 1021 mb (30.15 in) | SE 6 kph (SE 3.5 mph) | - | 10SM |
| | KEUL 111535Z AUTO 13003KT 10SM CLR M18/M22 A3014 RMK AO1 |
| 08:15 MST |  Clear | -19°C / -2°F | -24°C / -11°F | 65% | 1021 mb (30.15 in) | E 6 kph (E 3.5 mph) | - | 9SM |
| | KEUL 111515Z AUTO 10003KT 9SM CLR M19/M24 A3014 RMK AO1 |
| 07:55 MST |  Clear | -18°C / 0°F | -22°C / -8°F | 71% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEUL 111455Z AUTO 00000KT 10SM CLR M18/M22 A3014 RMK AO1 57007 |
| 07:35 MST |  Clear | -18°C / 0°F | -23°C / -9°F | 65% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEUL 111435Z AUTO 00000KT 10SM CLR M18/M23 A3014 RMK AO1 |
| 07:15 MST |  Clear | -19°C / -2°F | -23°C / -9°F | 71% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEUL 111415Z AUTO 00000KT 10SM CLR M19/M23 A3014 RMK AO1 |
| 06:55 MST |  Clear | -18°C / 0°F | -23°C / -9°F | 65% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEUL 111355Z AUTO 00000KT 10SM CLR M18/M23 A3014 RMK AO1 |
| 06:35 MST |  Clear | -18°C / 0°F | -23°C / -9°F | 65% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KEUL 111335Z AUTO 00000KT 10SM CLR M18/M23 A3013 RMK AO1 |
| 06:15 MST |  Clear | -18°C / 0°F | -22°C / -8°F | 71% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEUL 111315Z AUTO 00000KT 10SM CLR M18/M22 A3014 RMK AO1 |
| 05:55 MST |  Clear | -18°C / 0°F | -23°C / -9°F | 65% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEUL 111255Z AUTO 00000KT 10SM CLR M18/M23 A3014 RMK AO1 |
| 05:35 MST |  Clear | -19°C / -2°F | -23°C / -9°F | 71% | 1021 mb (30.15 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KEUL 111235Z AUTO 17003KT 10SM CLR M19/M23 A3014 RMK AO1 |
| 05:15 MST |  Clear | -19°C / -2°F | -23°C / -9°F | 71% | 1021 mb (30.15 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KEUL 111215Z AUTO 15005KT 10SM CLR M19/M23 A3015 RMK AO1 |
| 04:55 MST |  Clear | -19°C / -2°F | -24°C / -11°F | 65% | 1021 mb (30.15 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KEUL 111155Z AUTO 09003KT 10SM CLR M19/M24 A3016 RMK AO1 11140 21190 57003 |
| 04:35 MST |  Clear | -18°C / 0°F | -22°C / -8°F | 71% | 1021 mb (30.15 in) | SE 7 kph (SE 4.6 mph) | - | 10SM |
| | KEUL 111135Z AUTO 12004KT 10SM CLR M18/M22 A3016 RMK AO1 |
| 04:15 MST |  Clear | -18°C / 0°F | -24°C / -11°F | 60% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KEUL 111115Z AUTO 00000KT 10SM CLR M18/M24 A3017 RMK AO1 |
| 03:55 MST |  Clear | -18°C / 0°F | -22°C / -8°F | 71% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KEUL 111055Z AUTO 00000KT 10SM CLR M18/M22 A3017 RMK AO1 |
| 03:35 MST |  Clear | -18°C / 0°F | -23°C / -9°F | 65% | 1022 mb (30.18 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KEUL 111035Z AUTO 18004KT 10SM CLR M18/M23 A3017 RMK AO1 |
| 03:15 MST |  Clear | -18°C / 0°F | -22°C / -8°F | 71% | 1022 mb (30.18 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KEUL 111015Z AUTO 16004KT 10SM CLR M18/M22 A3017 RMK AO1 |
| 02:55 MST |  Clear | -18°C / 0°F | -22°C / -8°F | 71% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KEUL 110955Z AUTO 00000KT 10SM CLR M18/M22 A3017 RMK AO1 |
| 02:35 MST |  Clear | -18°C / 0°F | -23°C / -9°F | 65% | 1022 mb (30.18 in) | SE 6 kph (SE 3.5 mph) | - | 10SM |
| | KEUL 110935Z AUTO 12003KT 10SM CLR M18/M23 A3017 RMK AO1 |
| 02:15 MST |  Clear | -18°C / 0°F | -22°C / -8°F | 71% | 1022 mb (30.18 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KEUL 110915Z AUTO 09005KT 10SM CLR M18/M22 A3017 RMK AO1 |
| 01:55 MST |  Clear | -18°C / 0°F | -22°C / -8°F | 71% | 1022 mb (30.18 in) | E 9 kph (E 5.8 mph) | - | 6SM |
| | KEUL 110855Z AUTO 08005KT 6SM CLR M18/M22 A3017 RMK AO1 57003 |
| 01:35 MST |  Clear | -19°C / -2°F | -24°C / -11°F | 65% | 1022 mb (30.18 in) | ENE 6 kph (ENE 3.5 mph) | - | 10SM |
| | KEUL 110835Z AUTO 07003KT 10SM CLR M19/M24 A3017 RMK AO1 |
| 01:15 MST |  Clear | -18°C / 0°F | -24°C / -11°F | 60% | 1022 mb (30.18 in) | ENE 7 kph (ENE 4.6 mph) | - | 10SM |
| | KEUL 110815Z AUTO 07004KT 10SM CLR M18/M24 A3017 RMK AO1 |
| 00:55 MST |  Clear | -17°C / 1°F | -21°C / -6°F | 71% | 1022 mb (30.18 in) | SE 6 kph (SE 3.5 mph) | - | 9SM |
| | KEUL 110755Z AUTO 12003KT 9SM CLR M17/M21 A3017 RMK AO1 |
| 00:35 MST |  Clear | -17°C / 1°F | -21°C / -6°F | 71% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KEUL 110735Z AUTO 00000KT 10SM CLR M17/M21 A3017 RMK AO1 |
| 00:15 MST |  Clear | -17°C / 1°F | -21°C / -6°F | 71% | 1022 mb (30.18 in) | Calm | - | 8SM |
| | KEUL 110715Z AUTO 00000KT 8SM CLR M17/M21 A3017 RMK AO1 |