| 15:51 MST |  Mostly Cloudy | -13°C / 9°F | -17°C / 1°F | 72% | 1015 mb (29.97 in) | Calm | - | 8SM |
| | KLGU 112251Z AUTO 00000KT 8SM BKN100 M13/M17 A2997 RMK AO2 SLP244 T11331167 |
| 14:51 MST |  Partly Cloudy | -14°C / 7°F | -17°C / 1°F | 78% | 1015 mb (29.97 in) | Calm | - | 8SM |
| | KLGU 112151Z AUTO 00000KT 8SM FEW120 M14/M17 A2998 RMK AO2 SLP241 T11391172 |
| 13:51 MST |  Clear | -14°C / 7°F | -18°C / 0°F | 72% | 1016 mb (30 in) | SSW 9 kph (SSW 5.8 mph) | - | 7SM |
| | KLGU 112051Z AUTO 25005KT 7SM CLR M14/M18 A2999 RMK AO2 SLP246 T11441178 56028 $ |
| 12:51 MST |  Clear | -15°C / 5°F | -18°C / 0°F | 78% | 1017 mb (30.03 in) | Calm | - | 7SM |
| | KLGU 111951Z AUTO 00000KT 7SM CLR M15/M18 A3002 RMK AO2 SLP258 T11501178 $ |
| 11:51 MST |  Clear Fog And Mist | -16°C / 3°F | -17°C / 1°F | 92% | 1018 mb (30.06 in) | Calm | - | 6SM |
| | KLGU 111851Z AUTO 00000KT 6SM BR CLR M16/M17 A3005 RMK AO2 SLP269 T11561167 $ |
| 10:51 MST |  Clear | -17°C / 1°F | -21°C / -6°F | 71% | 1019 mb (30.09 in) | N 6 kph (N 3.5 mph) | - | 7SM |
| | KLGU 111751Z AUTO 36003KT 7SM CLR M17/M21 A3009 RMK AO2 SLP285 T11721206 11172 21256 58001 $ |
| 10:07 MST |  Partly Cloudy Fog And Mist | -20°C / -4°F | -22°C / -8°F | 84% | 1019 mb (30.09 in) | Calm | - | 6SM |
| | KLGU 111707Z AUTO 00000KT 6SM BR FEW002 M20/M22 A3010 RMK AO2 $ |
| 09:51 MST |  Clear | -20°C / -4°F | -22°C / -8°F | 84% | 1019 mb (30.09 in) | Calm | - | 7SM |
| | KLGU 111651Z AUTO 00000KT 7SM CLR M20/M22 A3010 RMK AO2 SLP293 T12001222 $ |
| 08:55 MST |  Partly Cloudy Hazy | -22°C / -8°F | -25°C / -13°F | 77% | 1019 mb (30.09 in) | SW 6 kph (SW 3.5 mph) | - | 3SM |
| | KLGU 111555Z AUTO 22003KT 3SM HZ FEW002 SCT006 M22/M25 A3010 RMK AO2 |
| 08:51 MST |  Partly Cloudy Fog And Mist | -23°C / -9°F | -24°C / -11°F | 92% | 1019 mb (30.09 in) | SW 6 kph (SW 3.5 mph) | - | 1 1/4SM |
| | KLGU 111551Z AUTO 23003KT 1 1/4SM BR SCT002 SCT006 M23/M24 A3010 RMK AO2 SLP299 T12281244 |
| 08:35 MST |  Partly Cloudy Hazy | -24°C / -11°F | -27°C / -17°F | 76% | 1019 mb (30.09 in) | Calm | - | 1 3/4SM |
| | KLGU 111535Z AUTO 00000KT 1 3/4SM HZ SCT002 SCT006 M24/M27 A3009 RMK AO2 |
| 08:17 MST |  Partly Cloudy Hazy | -24°C / -11°F | -28°C / -18°F | 70% | 1019 mb (30.09 in) | Calm | - | 3SM |
| | KLGU 111517Z AUTO 00000KT 3SM HZ SCT002 M24/M28 A3009 RMK AO2 |
| 08:15 MST |  Mostly Cloudy Hazy | -24°C / -11°F | -28°C / -18°F | 70% | 1019 mb (30.09 in) | Calm | - | 2 1/2SM |
| | KLGU 111515Z AUTO 00000KT 2 1/2SM HZ SCT002 BKN006 M24/M28 A3009 RMK AO2 |
| 08:11 MST |  Mostly Cloudy Hazy | -24°C / -11°F | -27°C / -17°F | 76% | 1019 mb (30.09 in) | Calm | - | 3SM |
| | KLGU 111511Z AUTO 00000KT 3SM HZ BKN002 BKN006 M24/M27 A3010 RMK AO2 |
| 08:06 MST |  Overcast Fog And Mist | -25°C / -13°F | -27°C / -17°F | 83% | 1019 mb (30.09 in) | Calm | - | 1 3/4SM |
| | KLGU 111506Z AUTO 00000KT 1 3/4SM BR BKN002 OVC006 M25/M27 A3010 RMK AO2 |
| 07:51 MST |  Overcast Hazy | -25°C / -13°F | -28°C / -18°F | 76% | 1019 mb (30.09 in) | NW 6 kph (NW 3.5 mph) | - | 1/2SM |
| | KLGU 111451Z AUTO 31003KT 1/2SM HZ BKN002 OVC006 M25/M28 A3009 RMK AO2 SLP299 T12501278 51002 |
| 07:01 MST |  Overcast Fog | -23°C / -9°F | -26°C / -15°F | 77% | 1019 mb (30.09 in) | Calm | - | 1/4SM |
| | KLGU 111401Z AUTO 00000KT 1/4SM FZFG BKN001 OVC007 M23/M26 A3009 RMK AO2 $ |
| 06:56 MST |  Overcast Fog | -23°C / -9°F | -26°C / -15°F | 77% | 1019 mb (30.09 in) | Calm | - | 1/4SM |
| | KLGU 111356Z AUTO 00000KT 1/4SM FZFG SCT001 OVC007 M23/M26 A3009 RMK AO2 $ |
| 06:51 MST |  Mostly Cloudy Hazy | -24°C / -11°F | -27°C / -17°F | 76% | 1019 mb (30.09 in) | Calm | - | 1/4SM |
| | KLGU 111351Z AUTO 00000KT 1/4SM HZ BKN001 BKN007 M24/M27 A3009 RMK AO2 SLP294 T12391267 $ |
| 06:49 MST |  Mostly Cloudy Hazy | -24°C / -11°F | -27°C / -17°F | 76% | 1019 mb (30.09 in) | Calm | - | 1/4SM |
| | KLGU 111349Z AUTO 00000KT 1/4SM HZ BKN001 BKN007 M24/M27 A3009 RMK AO2 $ |
| 06:42 MST |  Mostly Cloudy Hazy | -24°C / -11°F | -27°C / -17°F | 76% | 1019 mb (30.09 in) | Calm | - | 1 1/2SM |
| | KLGU 111342Z AUTO 00000KT 1 1/2SM HZ BKN001 BKN008 M24/M27 A3009 RMK AO2 $ |
| 06:40 MST |  Mostly Cloudy Hazy | -24°C / -11°F | -27°C / -17°F | 76% | 1019 mb (30.09 in) | Calm | - | 3SM |
| | KLGU 111340Z AUTO 00000KT 3SM HZ BKN001 M24/M27 A3009 RMK AO2 $ |
| 06:35 MST |  Mostly Cloudy Hazy | -23°C / -9°F | -26°C / -15°F | 77% | 1019 mb (30.09 in) | Calm | - | 2 1/2SM |
| | KLGU 111335Z AUTO 00000KT 2 1/2SM HZ BKN001 M23/M26 A3009 RMK AO2 $ |
| 06:32 MST |  Partly Cloudy Fog And Mist | -23°C / -9°F | -26°C / -15°F | 77% | 1019 mb (30.09 in) | Calm | - | 1 1/4SM |
| | KLGU 111332Z AUTO 00000KT 1 1/4SM BR SCT001 M23/M26 A3009 RMK AO2 $ |
| 06:29 MST |  Obscured Fog And Mist | -24°C / -11°F | -26°C / -15°F | 84% | 1019 mb (30.09 in) | Calm | - | 3/4SM |
| | KLGU 111329Z AUTO 00000KT 3/4SM BR VV001 M24/M26 A3009 RMK AO2 $ |
| 06:20 MST |  Partly Cloudy Fog And Mist | -24°C / -11°F | -27°C / -17°F | 76% | 1019 mb (30.09 in) | Calm | - | 3/4SM |
| | KLGU 111320Z AUTO 00000KT 3/4SM BR SCT001 SCT009 M24/M27 A3009 RMK AO2 $ |
| 06:16 MST |  Partly Cloudy Hazy | -24°C / -11°F | -27°C / -17°F | 76% | 1019 mb (30.09 in) | Calm | - | 2 1/2SM |
| | KLGU 111316Z AUTO 00000KT 2 1/2SM HZ FEW001 M24/M27 A3009 RMK AO2 $ |
| 06:13 MST |  Clear Hazy | -24°C / -11°F | -27°C / -17°F | 76% | 1019 mb (30.09 in) | Calm | - | 3SM |
| | KLGU 111313Z AUTO 00000KT 3SM HZ CLR M24/M27 A3008 RMK AO2 $ |
| 06:07 MST |  Clear Hazy | -23°C / -9°F | -27°C / -17°F | 70% | 1019 mb (30.09 in) | Calm | - | 1 3/4SM |
| | KLGU 111307Z AUTO 00000KT 1 3/4SM HZ CLR M23/M27 A3008 RMK AO2 VIS 3/4V4 $ |
| 05:58 MST |  Clear Fog And Mist | -23°C / -9°F | -25°C / -13°F | 84% | 1019 mb (30.09 in) | Calm | - | 2SM |
| | KLGU 111258Z AUTO 00000KT 2SM BR CLR M23/M25 A3008 RMK AO2 $ |
| 05:51 MST |  Clear Fog And Mist | -23°C / -9°F | -25°C / -13°F | 84% | 1019 mb (30.09 in) | Calm | - | 3/4SM |
| | KLGU 111251Z AUTO 00000KT 3/4SM BR CLR M23/M25 A3008 RMK AO2 SLP286 T12281250 $ |
| 05:44 MST |  Obscured Hazy | -23°C / -9°F | -26°C / -15°F | 77% | 1019 mb (30.09 in) | Calm | - | 3/4SM |
| | KLGU 111244Z AUTO 00000KT 3/4SM HZ VV001 M23/M26 A3009 RMK AO2 $ |
| 05:34 MST |  Partly Cloudy Hazy | -23°C / -9°F | -26°C / -15°F | 77% | 1019 mb (30.09 in) | Calm | - | 1 3/4SM |
| | KLGU 111234Z AUTO 00000KT 1 3/4SM HZ FEW001 SCT007 M23/M26 A3008 RMK AO2 $ |
| 05:32 MST |  Mostly Cloudy Hazy | -23°C / -9°F | -26°C / -15°F | 77% | 1019 mb (30.09 in) | Calm | - | 2SM |
| | KLGU 111232Z AUTO 00000KT 2SM HZ FEW001 BKN007 M23/M26 A3008 RMK AO2 VIS 1 1/2V4 $ |
| 05:22 MST |  Overcast Hazy | -23°C / -9°F | -26°C / -15°F | 77% | 1019 mb (30.09 in) | Calm | - | 1SM |
| | KLGU 111222Z AUTO 00000KT 1SM HZ SCT001 OVC007 M23/M26 A3008 RMK AO2 $ |
| 04:58 MST |  Overcast Fog | -24°C / -11°F | -26°C / -15°F | 84% | 1019 mb (30.09 in) | Calm | - | 1/2SM |
| | KLGU 111158Z AUTO 00000KT 1/2SM FZFG SCT001 OVC007 M24/M26 A3008 RMK AO2 $ |
| 04:51 MST |  Overcast Hazy | -24°C / -11°F | -27°C / -17°F | 76% | 1019 mb (30.09 in) | Calm | - | 1/4SM |
| | KLGU 111151Z AUTO 00000KT 1/4SM HZ BKN001 OVC007 M24/M27 A3009 RMK AO2 SLP282 T12391267 11206 21256 58003 $ |
| 04:11 MST |  Overcast Hazy | -24°C / -11°F | -27°C / -17°F | 76% | 1019 mb (30.09 in) | Calm | - | 1/2SM |
| | KLGU 111111Z AUTO 00000KT 1/2SM HZ BKN001 OVC007 M24/M27 A3009 RMK AO2 $ |
| 04:05 MST |  Overcast Hazy | -24°C / -11°F | -28°C / -18°F | 70% | 1019 mb (30.09 in) | Calm | - | 1 1/4SM |
| | KLGU 111105Z AUTO 00000KT 1 1/4SM HZ BKN001 OVC007 M24/M28 A3009 RMK AO2 VIS 1/2V2 1/2 $ |
| 03:51 MST |  Mostly Cloudy Fog | -25°C / -13°F | -27°C / -17°F | 83% | 1019 mb (30.09 in) | Calm | - | 1/2SM |
| | KLGU 111051Z AUTO 00000KT 1/2SM FZFG BKN001 BKN007 M25/M27 A3009 RMK AO2 SLP286 T12501267 $ |
| 03:49 MST |  Mostly Cloudy Fog | -25°C / -13°F | -27°C / -17°F | 83% | 1019 mb (30.09 in) | Calm | - | 1/2SM |
| | KLGU 111049Z AUTO 00000KT 1/2SM FZFG SCT001 BKN007 M25/M27 A3009 RMK AO2 $ |
| 03:42 MST |  Mostly Cloudy Hazy | -25°C / -13°F | -28°C / -18°F | 76% | 1019 mb (30.09 in) | SSW 6 kph (SSW 3.5 mph) | - | 1 1/2SM |
| | KLGU 111042Z AUTO 26003KT 1 1/2SM HZ SCT001 BKN007 M25/M28 A3009 RMK AO2 $ |
| 03:37 MST |  Mostly Cloudy Hazy | -24°C / -11°F | -28°C / -18°F | 70% | 1019 mb (30.09 in) | W 6 kph (W 3.5 mph) | - | 5SM |
| | KLGU 111037Z AUTO 27003KT 5SM HZ SCT001 BKN007 M24/M28 A3010 RMK AO2 $ |
| 02:51 MST |  Partly Cloudy | -22°C / -8°F | -25°C / -13°F | 77% | 1019 mb (30.09 in) | Calm | - | 7SM |
| | KLGU 110951Z AUTO 00000KT 7SM FEW001 M22/M25 A3010 RMK AO2 SLP283 T12221250 $ |
| 02:34 MST |  Partly Cloudy Hazy | -24°C / -11°F | -27°C / -17°F | 76% | 1019 mb (30.09 in) | Calm | - | 3SM |
| | KLGU 110934Z AUTO 00000KT 3SM HZ FEW001 SCT009 M24/M27 A3010 RMK AO2 $ |
| 02:23 MST |  Partly Cloudy Fog And Mist | -24°C / -11°F | -26°C / -15°F | 84% | 1019 mb (30.09 in) | Calm | - | 1SM |
| | KLGU 110923Z AUTO 00000KT 1SM BR SCT001 SCT009 M24/M26 A3010 RMK AO2 $ |
| 02:12 MST |  Partly Cloudy Fog | -23°C / -9°F | -25°C / -13°F | 84% | 1019 mb (30.09 in) | Calm | - | 1/2SM |
| | KLGU 110912Z AUTO 00000KT 1/2SM FZFG FEW001 SCT010 M23/M25 A3010 RMK AO2 $ |
| 02:07 MST |  Mostly Cloudy Fog | -23°C / -9°F | -25°C / -13°F | 84% | 1019 mb (30.09 in) | Calm | - | 1/2SM |
| | KLGU 110907Z AUTO 00000KT 1/2SM FZFG SCT001 BKN010 M23/M25 A3009 RMK AO2 $ |
| 02:02 MST |  Mostly Cloudy Fog | -22°C / -8°F | -24°C / -11°F | 84% | 1019 mb (30.09 in) | W 6 kph (W 3.5 mph) | - | 1/2SM |
| | KLGU 110902Z AUTO 28003KT 1/2SM FZFG SCT001 BKN008 M22/M24 A3010 RMK AO2 $ |
| 01:51 MST |  Obscured Hazy | -22°C / -8°F | -24°C / -11°F | 84% | 1019 mb (30.09 in) | Calm | - | 3/4SM |
| | KLGU 110851Z AUTO 00000KT 3/4SM HZ VV001 M22/M24 A3009 RMK AO2 SLP275 T12171244 58003 $ |
| 01:34 MST |  Overcast Fog And Mist | -22°C / -8°F | -24°C / -11°F | 84% | 1019 mb (30.09 in) | Calm | - | 3/4SM |
| | KLGU 110834Z AUTO 00000KT 3/4SM BR BKN001 OVC009 M22/M24 A3009 RMK AO2 VIS 1/4V2 1/2 $ |
| 01:29 MST |  Overcast Fog And Mist | -22°C / -8°F | -24°C / -11°F | 84% | 1019 mb (30.09 in) | Calm | - | 2SM |
| | KLGU 110829Z AUTO 00000KT 2SM BR OVC001 M22/M24 A3009 RMK AO2 VIS 1V3 $ |
| 01:01 MST |  Overcast Fog | -23°C / -9°F | -24°C / -11°F | 92% | 1019 mb (30.09 in) | Calm | - | 1/2SM |
| | KLGU 110801Z AUTO 00000KT 1/2SM FZFG BKN001 OVC008 M23/M24 A3010 RMK AO2 $ |
| 00:51 MST |  Overcast Hazy | -23°C / -9°F | -26°C / -15°F | 77% | 1019 mb (30.09 in) | Calm | - | 1SM |
| | KLGU 110751Z AUTO 00000KT 1SM HZ BKN001 OVC008 M23/M26 A3010 RMK AO2 VIS 1/2V3 SLP286 T12281256 $ |
| 00:45 MST |  Mostly Cloudy Fog | -23°C / -9°F | -25°C / -13°F | 84% | 1019 mb (30.09 in) | Calm | - | 1/2SM |
| | KLGU 110745Z AUTO 00000KT 1/2SM FZFG BKN001 BKN008 M23/M25 A3010 RMK AO2 $ |
| 00:38 MST |  Mostly Cloudy Fog | -22°C / -8°F | -23°C / -9°F | 92% | 1019 mb (30.09 in) | Calm | - | 1/2SM |
| | KLGU 110738Z AUTO 00000KT 1/2SM FZFG SCT001 BKN008 M22/M23 A3010 RMK AO2 $ |
| 00:32 MST |  Partly Cloudy Fog | -22°C / -8°F | -23°C / -9°F | 92% | 1019 mb (30.09 in) | Calm | - | 1/2SM |
| | KLGU 110732Z AUTO 00000KT 1/2SM FZFG SCT001 SCT008 M22/M23 A3010 RMK AO2 $ |
| 00:26 MST |  Partly Cloudy Fog And Mist | -22°C / -8°F | -24°C / -11°F | 84% | 1019 mb (30.09 in) | SW 6 kph (SW 3.5 mph) | - | 1 1/2SM |
| | KLGU 110726Z AUTO 22003KT 1 1/2SM BR FEW001 M22/M24 A3010 RMK AO2 VIS 1/2V5 $ |