| 18:55 MST |  Clear | -16°C / 3°F | -23°C / -9°F | 55% | 1011 mb (29.85 in) | Calm | - | 10SM |
| | KSMN 120155Z AUTO 00000KT 10SM CLR M16/M23 A2986 RMK AO1 |
| 18:35 MST |  Clear | -14°C / 7°F | -22°C / -8°F | 51% | 1011 mb (29.85 in) | Calm | - | 10SM |
| | KSMN 120135Z AUTO 00000KT 10SM CLR M14/M22 A2986 RMK AO1 |
| 18:15 MST |  Clear | -14°C / 7°F | -21°C / -6°F | 56% | 1011 mb (29.85 in) | SE 7 kph (SE 4.6 mph) | - | 10SM |
| | KSMN 120115Z AUTO 13004KT 10SM CLR M14/M21 A2986 RMK AO1 |
| 17:55 MST |  Clear | -14°C / 7°F | -21°C / -6°F | 56% | 1011 mb (29.85 in) | SE 7 kph (SE 4.6 mph) | - | 10SM |
| | KSMN 120055Z AUTO 13004KT 10SM CLR M14/M21 A2986 RMK AO1 |
| 17:35 MST |  Clear | -14°C / 7°F | -21°C / -6°F | 56% | 1011 mb (29.85 in) | SE 7 kph (SE 4.6 mph) | - | 10SM |
| | KSMN 120035Z AUTO 14004KT 10SM CLR M14/M21 A2986 RMK AO1 |
| 17:15 MST |  Clear | -13°C / 9°F | -23°C / -9°F | 43% | 1011 mb (29.85 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KSMN 120015Z AUTO 15003KT 10SM CLR M13/M23 A2986 RMK AO1 |
| 16:55 MST |  Clear | -12°C / 10°F | -21°C / -6°F | 47% | 1011 mb (29.85 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KSMN 112355Z AUTO 17003KT 10SM CLR M12/M21 A2986 RMK AO1 11080 21160 410801230 57014 |
| 16:35 MST |  Clear | -10°C / 14°F | -21°C / -6°F | 41% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KSMN 112335Z AUTO 00000KT 10SM CLR M10/M21 A2987 RMK AO1 |
| 16:15 MST |  Clear | -8°C / 18°F | -18°C / 0°F | 45% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KSMN 112315Z AUTO 00000KT 10SM CLR M08/M18 A2987 RMK AO1 |
| 15:55 MST |  Clear | -9°C / 16°F | -18°C / 0°F | 48% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KSMN 112255Z AUTO 00000KT 10SM CLR M09/M18 A2987 RMK AO1 |
| 15:35 MST |  Clear | -9°C / 16°F | -18°C / 0°F | 48% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KSMN 112235Z AUTO 00000KT 10SM CLR M09/M18 A2988 RMK AO1 |
| 15:15 MST |  Clear | -9°C / 16°F | -19°C / -2°F | 45% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KSMN 112215Z AUTO 00000KT 10SM CLR M09/M19 A2988 RMK AO1 |
| 14:55 MST |  Clear | -9°C / 16°F | -19°C / -2°F | 45% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KSMN 112155Z AUTO 00000KT 10SM CLR M09/M19 A2988 RMK AO1 |
| 14:35 MST |  Clear | -9°C / 16°F | -18°C / 0°F | 48% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KSMN 112135Z AUTO 00000KT 10SM CLR M09/M18 A2989 RMK AO1 |
| 14:15 MST |  Clear | -10°C / 14°F | -18°C / 0°F | 52% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KSMN 112115Z AUTO 00000KT 10SM CLR M10/M18 A2990 RMK AO1 |
| 13:55 MST |  Clear | -10°C / 14°F | -18°C / 0°F | 52% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KSMN 112055Z AUTO 00000KT 10SM CLR M10/M18 A2990 RMK AO1 57044 |
| 13:35 MST |  Clear | -11°C / 12°F | -18°C / 0°F | 57% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KSMN 112035Z AUTO 00000KT 10SM CLR M11/M18 A2991 RMK AO1 |
| 13:15 MST |  Clear | -12°C / 10°F | -18°C / 0°F | 61% | 1014 mb (29.94 in) | Calm | - | 10SM |
| | KSMN 112015Z AUTO 00000KT 10SM CLR M12/M18 A2993 RMK AO1 |
| 12:55 MST |  Clear | -12°C / 10°F | -17°C / 1°F | 67% | 1014 mb (29.94 in) | Calm | - | 10SM |
| | KSMN 111955Z AUTO 00000KT 10SM CLR M12/M17 A2994 RMK AO1 |
| 12:35 MST |  Clear | -13°C / 9°F | -18°C / 0°F | 66% | 1015 mb (29.97 in) | Calm | - | 10SM |
| | KSMN 111935Z AUTO 00000KT 10SM CLR M13/M18 A2996 RMK AO1 |
| 12:15 MST |  Clear | -13°C / 9°F | -18°C / 0°F | 66% | 1015 mb (29.97 in) | Calm | - | 10SM |
| | KSMN 111915Z AUTO 00000KT 10SM CLR M13/M18 A2997 RMK AO1 |
| 11:55 MST |  Clear | -13°C / 9°F | -18°C / 0°F | 66% | 1016 mb (30 in) | Calm | - | 10SM |
| | KSMN 111855Z AUTO 00000KT 10SM CLR M13/M18 A2999 RMK AO1 |
| 11:35 MST |  Clear | -14°C / 7°F | -18°C / 0°F | 72% | 1016 mb (30 in) | Calm | - | 10SM |
| | KSMN 111835Z AUTO 00000KT 10SM CLR M14/M18 A3001 RMK AO1 |
| 11:15 MST |  Clear | -16°C / 3°F | -22°C / -8°F | 60% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KSMN 111815Z AUTO 00000KT 10SM CLR M16/M22 A3002 RMK AO1 |
| 10:55 MST |  Clear | -16°C / 3°F | -17°C / 1°F | 92% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KSMN 111755Z AUTO 00000KT 10SM CLR M16/M17 A3003 RMK AO1 11160 21230 57007 |
| 10:35 MST |  Clear | -17°C / 1°F | -20°C / -4°F | 78% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KSMN 111735Z AUTO 00000KT 10SM CLR M17/M20 A3004 RMK AO1 |
| 10:15 MST |  Clear | -18°C / 0°F | -22°C / -8°F | 71% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111715Z AUTO 00000KT 10SM CLR M18/M22 A3005 RMK AO1 |
| 09:55 MST |  Clear | -18°C / 0°F | -18°C / 0°F | 100% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111655Z AUTO 00000KT 10SM CLR M18/M18 A3005 RMK AO1 |
| 09:35 MST |  Clear | -18°C / 0°F | -33°C / -27°F | 26% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111635Z AUTO 00000KT 10SM CLR M18/M33 A3005 RMK AO1 |
| 09:15 MST |  Clear | -19°C / -2°F | N/A | N/A | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111615Z AUTO 00000KT 10SM CLR M19/ A3005 RMK AO1 |
| 08:55 MST |  Clear | -21°C / -6°F | -33°C / -27°F | 33% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111555Z AUTO 00000KT 10SM CLR M21/M33 A3005 RMK AO1 |
| 08:35 MST |  Clear | -22°C / -8°F | -22°C / -8°F | 100% | 1018 mb (30.06 in) | Calm | - | 8SM |
| | KSMN 111535Z AUTO 00000KT 8SM CLR M22/M22 A3005 RMK AO1 |
| 08:15 MST |  Clear | -23°C / -9°F | -25°C / -13°F | 84% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111515Z AUTO 00000KT 10SM CLR M23/M25 A3005 RMK AO1 |
| 07:55 MST |  Clear | -22°C / -8°F | -34°C / -29°F | 33% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111455Z AUTO 00000KT 10SM CLR M22/M34 A3005 RMK AO1 54000 |
| 07:35 MST |  Clear | -22°C / -8°F | -29°C / -20°F | 53% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KSMN 111435Z AUTO 00000KT 10SM CLR M22/M29 A3004 RMK AO1 |
| 07:15 MST |  Clear | -22°C / -8°F | -22°C / -8°F | 100% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111415Z AUTO 00000KT 10SM CLR M22/M22 A3005 RMK AO1 |
| 06:55 MST |  Clear | -22°C / -8°F | -30°C / -22°F | 48% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111355Z AUTO 00000KT 10SM CLR M22/M30 A3005 RMK AO1 |
| 06:35 MST |  Clear | -22°C / -8°F | -29°C / -20°F | 53% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111335Z AUTO 00000KT 10SM CLR M22/M29 A3005 RMK AO1 |
| 06:15 MST |  Clear | -22°C / -8°F | -24°C / -11°F | 84% | 1018 mb (30.06 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KSMN 111315Z AUTO 15003KT 10SM CLR M22/M24 A3005 RMK AO1 |
| 05:55 MST |  Clear | -22°C / -8°F | -28°C / -18°F | 58% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111255Z AUTO 00000KT 10SM CLR M22/M28 A3005 RMK AO1 |
| 05:35 MST |  Clear | -22°C / -8°F | -27°C / -17°F | 64% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111235Z AUTO 00000KT 10SM CLR M22/M27 A3005 RMK AO1 |
| 05:15 MST |  Clear | -22°C / -8°F | -27°C / -17°F | 64% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111215Z AUTO 00000KT 10SM CLR M22/M27 A3005 RMK AO1 |
| 04:55 MST |  Clear | -21°C / -6°F | -26°C / -15°F | 64% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111155Z AUTO 00000KT 10SM CLR M21/M26 A3005 RMK AO1 11190 21220 54000 |
| 04:35 MST |  Clear | -21°C / -6°F | -28°C / -18°F | 54% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111135Z AUTO 00000KT 10SM CLR M21/M28 A3006 RMK AO1 |
| 04:15 MST |  Clear | -22°C / -8°F | -28°C / -18°F | 58% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111115Z AUTO 00000KT 10SM CLR M22/M28 A3006 RMK AO1 |
| 03:55 MST |  Clear | -22°C / -8°F | -26°C / -15°F | 70% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111055Z AUTO 00000KT 10SM CLR M22/M26 A3006 RMK AO1 |
| 03:35 MST |  Clear | -21°C / -6°F | -29°C / -20°F | 49% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111035Z AUTO 00000KT 10SM CLR M21/M29 A3006 RMK AO1 |
| 03:15 MST |  Clear | -21°C / -6°F | -29°C / -20°F | 49% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 111015Z AUTO 00000KT 10SM CLR M21/M29 A3006 RMK AO1 |
| 02:55 MST |  Clear | -21°C / -6°F | -24°C / -11°F | 77% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 110955Z AUTO 00000KT 10SM CLR M21/M24 A3006 RMK AO1 |
| 02:35 MST |  Clear | -20°C / -4°F | -28°C / -18°F | 49% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 110935Z AUTO 00000KT 10SM CLR M20/M28 A3006 RMK AO1 |
| 02:15 MST |  Clear | -21°C / -6°F | -27°C / -17°F | 59% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 110915Z AUTO 00000KT 10SM CLR M21/M27 A3006 RMK AO1 |
| 01:55 MST |  Clear | -20°C / -4°F | -24°C / -11°F | 71% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 110855Z AUTO 00000KT 10SM CLR M20/M24 A3005 RMK AO1 57003 |
| 01:35 MST |  Clear | -21°C / -6°F | -27°C / -17°F | 59% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 110835Z AUTO 00000KT 10SM CLR M21/M27 A3005 RMK AO1 |
| 01:15 MST |  Clear | -21°C / -6°F | -26°C / -15°F | 64% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 110815Z AUTO 00000KT 10SM CLR M21/M26 A3005 RMK AO1 |
| 00:55 MST |  Clear | -21°C / -6°F | -29°C / -20°F | 49% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSMN 110755Z AUTO 00000KT 10SM CLR M21/M29 A3005 RMK AO1 |
| 00:35 MST |  Clear | -21°C / -6°F | -26°C / -15°F | 64% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KSMN 110735Z AUTO 00000KT 10SM CLR M21/M26 A3004 RMK AO1 |
| 00:15 MST |  Clear | -20°C / -4°F | -26°C / -15°F | 59% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KSMN 110715Z AUTO 00000KT 10SM CLR M20/M26 A3004 RMK AO1 |