| 16:56 MST |  Mostly Cloudy | -11°C / 12°F | -13°C / 9°F | 85% | 1014 mb (29.94 in) | NE 9 kph (NE 5.8 mph) | - | 10SM |
| | KCTB 222356Z AUTO 03005KT 10SM BKN012 M11/M13 A2993 RMK AO2 SLP194 T11061133 11094 21106 53013 |
| 15:56 MST |  Overcast | -11°C / 12°F | -13°C / 9°F | 85% | 1013 mb (29.91 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KCTB 222256Z AUTO 36006KT 10SM OVC012 M11/M13 A2992 RMK AO2 SLP189 T11061128 |
| 14:56 MST |  Overcast | -10°C / 14°F | -13°C / 9°F | 79% | 1013 mb (29.91 in) | N 17 kph (N 10.4 mph) | - | 10SM |
| | KCTB 222156Z AUTO 36009KT 10SM OVC014 M10/M13 A2990 RMK AO2 SLP179 T11001128 |
| 13:56 MST |  Overcast | -10°C / 14°F | -12°C / 10°F | 85% | 1012 mb (29.88 in) | N 17 kph (N 10.4 mph) | - | 10SM |
| | KCTB 222056Z AUTO 36009KT 10SM OVC012 M10/M12 A2989 RMK AO2 SLP175 T11001122 53002 |
| 12:56 MST |  Overcast | -10°C / 14°F | -12°C / 10°F | 85% | 1012 mb (29.88 in) | N 19 kph (N 11.5 mph) | - | 8SM |
| | KCTB 221956Z AUTO 36010KT 8SM FEW007 OVC014 M10/M12 A2988 RMK AO2 SLP173 T11001122 |
| 12:34 MST |  Overcast | -10°C / 14°F | -12°C / 10°F | 85% | 1012 mb (29.88 in) | N 20 kph (N 12.7 mph) | - | 8SM |
| | KCTB 221934Z AUTO 35011KT 8SM FEW007 OVC014 M10/M12 A2988 RMK AO2 |
| 11:56 MST |  Overcast | -10°C / 14°F | -12°C / 10°F | 85% | 1012 mb (29.88 in) | N 19 kph (N 11.5 mph) | - | 7SM |
| | KCTB 221856Z AUTO 35010KT 7SM OVC014 M10/M12 A2988 RMK AO2 SLP172 T11001122 |
| 10:56 MST |  Overcast | -10°C / 14°F | -12°C / 10°F | 85% | 1012 mb (29.88 in) | N 19 kph (N 11.5 mph) | - | 7SM |
| | KCTB 221756Z AUTO 35010KT 7SM OVC011 M10/M12 A2988 RMK AO2 SLP173 60000 T11001122 11083 21106 51017 |
| 10:05 MST |  Overcast Fog And Mist | -10°C / 14°F | -12°C / 10°F | 85% | 1012 mb (29.88 in) | N 15 kph (N 9.2 mph) | - | 5SM |
| | KCTB 221705Z AUTO 36008KT 5SM BR BKN011 OVC020 M10/M12 A2988 RMK AO2 |
| 09:56 MST |  Overcast Fog And Mist | -10°C / 14°F | -12°C / 10°F | 85% | 1012 mb (29.88 in) | N 17 kph (N 10.4 mph) | - | 6SM |
| | KCTB 221656Z AUTO 36009KT 6SM BR SCT011 OVC020 M10/M12 A2988 RMK AO2 SLP170 T11001122 |
| 08:56 MST |  Mostly Cloudy | -11°C / 12°F | -13°C / 9°F | 85% | 1011 mb (29.85 in) | N 13 kph (N 8.1 mph) | 0.00 mm (0.00 in) | 7SM |
| | KCTB 221556Z AUTO 35007KT 7SM BKN024 BKN100 M11/M13 A2985 RMK AO2 SNE06 SLP161 P0000 T11061128 |
| 08:44 MST |  Overcast | -11°C / 12°F | -13°C / 9°F | 85% | 1011 mb (29.85 in) | N 13 kph (N 8.1 mph) | 0.00 mm (0.00 in) | 8SM |
| | KCTB 221544Z AUTO 35007KT 8SM BKN024 OVC100 M11/M13 A2985 RMK AO2 SNE06 P0000 |
| 07:56 MST |  Mostly Cloudy Light Snow | -10°C / 14°F | -13°C / 9°F | 79% | 1010 mb (29.83 in) | N 17 kph (N 10.4 mph) | 0.00 mm (0.00 in) | 4SM |
| | KCTB 221456Z AUTO 36009KT 4SM -SN FEW031 SCT070 BKN100 M10/M13 A2983 RMK AO2 SLP152 P0000 60000 T11001128 53009 |
| 07:47 MST |  Mostly Cloudy Light Snow | -10°C / 14°F | -13°C / 9°F | 79% | 1010 mb (29.83 in) | N 19 kph (N 11.5 mph) | 0.00 mm (0.00 in) | 3SM |
| | KCTB 221447Z AUTO 36010KT 3SM -SN SCT021 SCT037 BKN070 M10/M13 A2982 RMK AO2 P0000 |
| 07:40 MST |  Mostly Cloudy Light Snow | -10°C / 14°F | -13°C / 9°F | 79% | 1010 mb (29.83 in) | N 19 kph (N 11.5 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KCTB 221440Z AUTO 36010KT 2 1/2SM -SN SCT021 BKN037 BKN065 M10/M13 A2982 RMK AO2 P0000 |
| 07:19 MST |  Overcast Light Snow | -9°C / 16°F | -12°C / 10°F | 79% | 1010 mb (29.83 in) | N 24 kph (N 15 mph) | 0.00 mm (0.00 in) | 2SM |
| | KCTB 221419Z AUTO 36013KT 2SM -SN BKN015 OVC033 M09/M12 A2982 RMK AO2 P0000 |
| 07:09 MST |  Overcast Light Snow | -9°C / 16°F | -12°C / 10°F | 79% | 1010 mb (29.83 in) | N 22 kph (N 13.8 mph) | 0.00 mm (0.00 in) | 2SM |
| | KCTB 221409Z AUTO 36012KT 2SM -SN SCT011 OVC033 M09/M12 A2982 RMK AO2 P0000 |
| 06:56 MST |  Overcast Light Snow | -9°C / 16°F | -12°C / 10°F | 79% | 1009 mb (29.8 in) | N 26 kph (N 16.1 mph) | 0.00 mm (0.00 in) | 1 1/4SM |
| | KCTB 221356Z AUTO 36014KT 1 1/4SM -SN BKN011 OVC037 M09/M12 A2981 RMK AO2 SNB1259 SLP143 P0000 T10941122 |
| 06:20 MST |  Overcast Light Snow | -9°C / 16°F | -12°C / 10°F | 79% | 1009 mb (29.8 in) | N 24 kph (N 15 mph) | 0.00 mm (0.00 in) | 1 3/4SM |
| | KCTB 221320Z AUTO 35013KT 1 3/4SM -SN OVC009 M09/M12 A2980 RMK AO2 SNB1259 P0000 |
| 05:56 MST |  Overcast | -9°C / 16°F | -12°C / 10°F | 79% | 1009 mb (29.8 in) | N 24 kph (N 15 mph) | - | 10SM |
| | KCTB 221256Z AUTO 35013KT 10SM OVC007 M09/M12 A2981 RMK AO2 SLP141 T10891117 |
| 04:56 MST |  Overcast Hazy | -8°C / 18°F | -11°C / 12°F | 79% | 1009 mb (29.8 in) | N 20 kph (N 12.7 mph) | - | 6SM |
| | KCTB 221156Z AUTO 36011KT 6SM HZ OVC005 M08/M11 A2980 RMK AO2 SLP136 T10831111 11067 21083 53008 |
| 04:42 MST |  Overcast Hazy | -8°C / 18°F | -11°C / 12°F | 79% | 1009 mb (29.8 in) | N 15 kph (N 9.2 mph) | - | 6SM |
| | KCTB 221142Z AUTO 35008KT 6SM HZ OVC005 M08/M11 A2980 RMK AO2 CIG 003V006 |
| 04:13 MST |  Overcast Fog And Mist | -8°C / 18°F | -11°C / 12°F | 79% | 1008 mb (29.77 in) | N 22 kph (N 13.8 mph) | - | 3SM |
| | KCTB 221113Z AUTO 35012KT 3SM BR OVC003 M08/M11 A2978 RMK AO2 |
| 03:56 MST |  Overcast Fog And Mist | -8°C / 18°F | -11°C / 12°F | 79% | 1008 mb (29.77 in) | N 22 kph (N 13.8 mph) | - | 2 1/2SM |
| | KCTB 221056Z AUTO 35012KT 2 1/2SM BR OVC003 M08/M11 A2978 RMK AO2 SLP129 T10831106 |
| 03:41 MST |  Overcast Hazy | -8°C / 18°F | -11°C / 12°F | 79% | 1008 mb (29.77 in) | N 26 kph (N 16.1 mph) | - | 2SM |
| | KCTB 221041Z AUTO 35014KT 2SM HZ OVC003 M08/M11 A2977 RMK AO2 |
| 02:56 MST |  Overcast Hazy | -7°C / 19°F | -10°C / 14°F | 79% | 1008 mb (29.77 in) | N 22 kph (N 13.8 mph) | - | 2SM |
| | KCTB 220956Z AUTO 36012KT 2SM HZ OVC001 M07/M10 A2977 RMK AO2 SLP127 T10721100 |
| 02:53 MST |  Overcast Fog And Mist | -7°C / 19°F | -9°C / 16°F | 86% | 1008 mb (29.77 in) | N 24 kph (N 15 mph) | - | 1 3/4SM |
| | KCTB 220953Z AUTO 36013KT 1 3/4SM BR OVC001 M07/M09 A2977 RMK AO2 |
| 01:56 MST |  Overcast Fog And Mist | -7°C / 19°F | -9°C / 16°F | 86% | 1007 mb (29.74 in) | N 20 kph (N 12.7 mph) | - | 2SM |
| | KCTB 220856Z AUTO 35011KT 2SM BR OVC001 M07/M09 A2975 RMK AO2 SLP118 T10721094 51007 |
| 00:56 MST |  Overcast Fog And Mist | -7°C / 19°F | -9°C / 16°F | 86% | 1007 mb (29.74 in) | N 19 kph (N 11.5 mph) | - | 1 1/2SM |
| | KCTB 220756Z AUTO 35010KT 1 1/2SM BR OVC001 M07/M09 A2974 RMK AO2 SLP119 T10721094 |