| 23:39 MST |  Clear Fog And Mist | -18°C / 0°F | -20°C / -4°F | 84% | 1023 mb (30.21 in) | Calm | - | 6SM |
| | KLGU 260639Z AUTO 00000KT 6SM BR CLR M18/M20 A3022 RMK AO2 $ |
| 23:28 MST |  Clear Fog And Mist | -14°C / 7°F | -16°C / 3°F | 85% | 1024 mb (30.24 in) | Calm | - | 2SM |
| | KLGU 260628Z AUTO 00000KT 2SM BR CLR M14/M16 A3023 RMK AO2 VIS 1 1/2V4 $ |
| 23:03 MST |  Clear Fog And Mist | -15°C / 5°F | -17°C / 1°F | 85% | 1023 mb (30.21 in) | Calm | - | 5SM |
| | KLGU 260603Z AUTO 00000KT 5SM BR CLR M15/M17 A3022 RMK AO2 $ |
| 22:56 MST |  Clear Fog And Mist | -16°C / 3°F | -18°C / 0°F | 85% | 1023 mb (30.21 in) | Calm | - | 2 1/2SM |
| | KLGU 260556Z AUTO 00000KT 2 1/2SM BR CLR M16/M18 A3022 RMK AO2 $ |
| 22:51 MST |  Partly Cloudy Hazy | -16°C / 3°F | -18°C / 0°F | 85% | 1023 mb (30.21 in) | Calm | - | 3SM |
| | KLGU 260551Z AUTO 00000KT 3SM HZ FEW001 M16/M18 A3022 RMK AO2 SLP305 T11561183 11083 21161 53006 $ |
| 22:41 MST |  Partly Cloudy Fog And Mist | -16°C / 3°F | -17°C / 1°F | 92% | 1023 mb (30.21 in) | Calm | - | 5SM |
| | KLGU 260541Z AUTO 00000KT 5SM BR FEW001 M16/M17 A3022 RMK AO2 $ |
| 22:36 MST |  Partly Cloudy Fog And Mist | -16°C / 3°F | -17°C / 1°F | 92% | 1023 mb (30.21 in) | Calm | - | 2SM |
| | KLGU 260536Z AUTO 00000KT 2SM BR SCT001 M16/M17 A3022 RMK AO2 $ |
| 22:34 MST |  Obscured Fog And Mist | -16°C / 3°F | -18°C / 0°F | 85% | 1023 mb (30.21 in) | Calm | - | 1SM |
| | KLGU 260534Z AUTO 00000KT 1SM BR VV001 M16/M18 A3022 RMK AO2 $ |
| 22:26 MST |  Mostly Cloudy Fog | -16°C / 3°F | -18°C / 0°F | 85% | 1023 mb (30.21 in) | WNW 6 kph (WNW 3.5 mph) | - | 1/4SM |
| | KLGU 260526Z AUTO 29003KT 1/4SM FZFG SCT001 BKN035 M16/M18 A3021 RMK AO2 $ |
| 22:11 MST |  Obscured Fog And Mist | -16°C / 3°F | -17°C / 1°F | 92% | 1023 mb (30.21 in) | Calm | - | 3/4SM |
| | KLGU 260511Z AUTO 00000KT 3/4SM BR VV001 M16/M17 A3021 RMK AO2 $ |
| 22:05 MST |  Clear Fog And Mist | -14°C / 7°F | -15°C / 5°F | 92% | 1023 mb (30.21 in) | W 6 kph (W 3.5 mph) | - | 2SM |
| | KLGU 260505Z AUTO 28003KT 2SM BR CLR M14/M15 A3021 RMK AO2 $ |
| 21:51 MST |  Clear Fog And Mist | -14°C / 7°F | -16°C / 3°F | 85% | 1023 mb (30.21 in) | Calm | - | 6SM |
| | KLGU 260451Z AUTO 00000KT 6SM BR CLR M14/M16 A3021 RMK AO2 SLP296 T11391161 $ |
| 20:51 MST |  Overcast Fog And Mist | -13°C / 9°F | -15°C / 5°F | 85% | 1023 mb (30.21 in) | Calm | - | 6SM |
| | KLGU 260351Z AUTO 00000KT 6SM BR BKN039 OVC047 M13/M15 A3021 RMK AO2 SLP299 T11281150 $ |
| 19:51 MST |  Overcast | -12°C / 10°F | -13°C / 9°F | 92% | 1023 mb (30.21 in) | Calm | - | 8SM |
| | KLGU 260251Z AUTO 00000KT 8SM OVC044 M12/M13 A3020 RMK AO2 SLP296 T11171133 53004 $ |
| 18:51 MST |  Overcast | -11°C / 12°F | -14°C / 7°F | 79% | 1022 mb (30.18 in) | SW 7 kph (SW 4.6 mph) | - | 8SM |
| | KLGU 260151Z AUTO 22004KT 8SM OVC045 M11/M14 A3019 RMK AO2 SLP289 T11061139 $ |
| 17:51 MST |  Clear | -9°C / 16°F | -13°C / 9°F | 73% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KLGU 260051Z AUTO 00000KT 10SM CLR M09/M13 A3019 RMK AO2 SLP291 T10941128 $ |
| 16:51 MST |  Clear | -8°C / 18°F | -12°C / 10°F | 73% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KLGU 252351Z AUTO 00000KT 10SM CLR M08/M12 A3019 RMK AO2 SLP283 T10831122 11061 21117 53001 $ |
| 15:51 MST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1022 mb (30.18 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KLGU 252251Z AUTO 22004KT 10SM CLR M08/M11 A3019 RMK AO2 SLP276 T10781111 $ |
| 14:51 MST |  Overcast | -7°C / 19°F | -12°C / 10°F | 68% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KLGU 252151Z AUTO 00000KT 10SM OVC050 M07/M12 A3019 RMK AO2 SLP277 T10671117 $ |
| 13:51 MST |  Overcast | -8°C / 18°F | -11°C / 12°F | 79% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KLGU 252051Z AUTO 00000KT 10SM SCT040 OVC060 M08/M11 A3019 RMK AO2 SLP273 T10781111 58013 $ |
| 12:51 MST |  Mostly Cloudy | -8°C / 18°F | -12°C / 10°F | 73% | 1023 mb (30.21 in) | NNW 11 kph (NNW 6.9 mph) | - | 10SM |
| | KLGU 251951Z AUTO 33006KT 10SM BKN065 M08/M12 A3020 RMK AO2 SLP278 T10781117 $ |
| 11:51 MST |  Overcast | -9°C / 16°F | -12°C / 10°F | 79% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KLGU 251851Z AUTO 00000KT 10SM OVC075 M09/M12 A3022 RMK AO2 SLP288 T10941117 $ |
| 10:51 MST |  Mostly Cloudy | -12°C / 10°F | -13°C / 9°F | 92% | 1024 mb (30.24 in) | Calm | - | 9SM |
| | KLGU 251751Z AUTO 00000KT 9SM BKN075 M12/M13 A3023 RMK AO2 SLP296 T11171133 11111 21172 50001 $ |
| 09:51 MST |  Overcast | -12°C / 10°F | -13°C / 9°F | 92% | 1024 mb (30.24 in) | Calm | - | 8SM |
| | KLGU 251651Z AUTO 8SM FEW040 OVC060 M12/M13 A3024 RMK AO2 SLP296 T11171133 $ |
| 08:51 MST |  Overcast | -14°C / 7°F | -15°C / 5°F | 92% | 1024 mb (30.24 in) | Calm | - | 7SM |
| | KLGU 251551Z AUTO 00000KT 7SM SCT044 OVC075 M14/M15 A3023 RMK AO2 SLP303 T11441150 |
| 07:51 MST |  Overcast | -14°C / 7°F | -16°C / 3°F | 85% | 1024 mb (30.24 in) | Calm | - | 8SM |
| | KLGU 251451Z AUTO 00000KT 8SM FEW039 OVC080 M14/M16 A3023 RMK AO2 SLP304 T11391156 53004 |
| 07:12 MST |  Overcast Fog And Mist | -13°C / 9°F | -15°C / 5°F | 85% | 1023 mb (30.21 in) | Calm | - | 5SM |
| | KLGU 251412Z AUTO 00000KT 5SM BR OVC080 M13/M15 A3022 RMK AO2 |
| 07:07 MST |  Overcast Fog And Mist | -13°C / 9°F | -15°C / 5°F | 85% | 1023 mb (30.21 in) | SW 6 kph (SW 3.5 mph) | - | 2 1/2SM |
| | KLGU 251407Z AUTO 21003KT 2 1/2SM BR OVC080 M13/M15 A3022 RMK AO2 |
| 06:51 MST |  Overcast Fog | -14°C / 7°F | -16°C / 3°F | 85% | 1024 mb (30.24 in) | Calm | - | 1/2SM |
| | KLGU 251351Z AUTO 00000KT 1/2SM FZFG FEW001 OVC085 M14/M16 A3023 RMK AO2 SLP303 T11441156 |
| 06:44 MST |  Overcast Fog | -15°C / 5°F | -16°C / 3°F | 92% | 1024 mb (30.24 in) | Calm | - | 1/2SM |
| | KLGU 251344Z AUTO 00000KT 1/2SM FZFG SCT001 OVC085 M15/M16 A3023 RMK AO2 |
| 06:38 MST |  Overcast Fog And Mist | -16°C / 3°F | -17°C / 1°F | 92% | 1024 mb (30.24 in) | Calm | - | 1SM |
| | KLGU 251338Z AUTO 00000KT 1SM BR FEW001 SCT005 OVC085 M16/M17 A3023 RMK AO2 |
| 06:23 MST |  Overcast Fog And Mist | -16°C / 3°F | -18°C / 0°F | 85% | 1024 mb (30.24 in) | ESE 6 kph (ESE 3.5 mph) | - | 1 1/2SM |
| | KLGU 251323Z AUTO 11003KT 1 1/2SM BR BKN001 OVC005 M16/M18 A3023 RMK AO2 |
| 06:06 MST |  Overcast Fog And Mist | -16°C / 3°F | -17°C / 1°F | 92% | 1023 mb (30.21 in) | Calm | - | 4SM |
| | KLGU 251306Z AUTO 00000KT 4SM BR BKN001 BKN011 OVC090 M16/M17 A3022 RMK AO2 |
| 06:01 MST |  Overcast Fog And Mist | -16°C / 3°F | -18°C / 0°F | 85% | 1023 mb (30.21 in) | Calm | - | 2 1/2SM |
| | KLGU 251301Z AUTO 00000KT 2 1/2SM BR BKN001 BKN011 OVC090 M16/M18 A3022 RMK AO2 |
| 05:58 MST |  Overcast Fog And Mist | -16°C / 3°F | -18°C / 0°F | 85% | 1023 mb (30.21 in) | Calm | - | 1 1/4SM |
| | KLGU 251258Z AUTO 00000KT 1 1/4SM BR SCT001 BKN011 OVC090 M16/M18 A3022 RMK AO2 |
| 05:51 MST |  Mostly Cloudy Fog And Mist | -17°C / 1°F | -18°C / 0°F | 92% | 1023 mb (30.21 in) | Calm | - | 3/4SM |
| | KLGU 251251Z AUTO 00000KT 3/4SM BR FEW001 SCT011 BKN090 M17/M18 A3022 RMK AO2 SLP306 T11671183 |
| 05:44 MST |  Mostly Cloudy Fog And Mist | -17°C / 1°F | -18°C / 0°F | 92% | 1023 mb (30.21 in) | Calm | - | 3/4SM |
| | KLGU 251244Z AUTO 00000KT 3/4SM BR FEW001 SCT011 BKN090 M17/M18 A3022 RMK AO2 |
| 05:36 MST |  Partly Cloudy Fog And Mist | -16°C / 3°F | -18°C / 0°F | 85% | 1023 mb (30.21 in) | Calm | - | 3/4SM |
| | KLGU 251236Z AUTO 00000KT 3/4SM BR FEW090 M16/M18 A3021 RMK AO2 |
| 04:51 MST |  Clear | -14°C / 7°F | -16°C / 3°F | 85% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KLGU 251151Z AUTO 00000KT 10SM CLR M14/M16 A3021 RMK AO2 SLP290 T11391161 11089 21150 58003 |
| 03:51 MST |  Clear | -12°C / 10°F | -14°C / 7°F | 85% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KLGU 251051Z AUTO 00000KT 10SM CLR M12/M14 A3022 RMK AO2 SLP288 T11171139 |
| 02:51 MST |  Clear | -13°C / 9°F | -16°C / 3°F | 78% | 1024 mb (30.24 in) | Calm | - | 8SM |
| | KLGU 250951Z AUTO 00000KT 8SM CLR M13/M16 A3023 RMK AO2 SLP294 T11331156 |
| 01:51 MST |  Mostly Cloudy | -10°C / 14°F | -12°C / 10°F | 85% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KLGU 250851Z AUTO 00000KT 10SM BKN075 M10/M12 A3023 RMK AO2 SLP282 T11001122 58009 |
| 00:51 MST |  Overcast | -11°C / 12°F | -13°C / 9°F | 85% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KLGU 250751Z AUTO 00000KT 10SM OVC085 M11/M13 A3024 RMK AO2 SLP294 T11061128 |