| 03:10 MST |  Overcast Light Snow | 0°C / 32°F | 0°C / 32°F | 100% | 1015 mb (29.97 in) | SSW 7 kph (SSW 4.6 mph) | - | 2SM |
| | KLAM 291010Z AUTO 26004KT 2SM -SN SCT001 BKN016 OVC029 00/00 A2996 RMK AO2 |
| 02:50 MST |  Overcast Light Snow | 0°C / 32°F | 0°C / 32°F | 100% | 1015 mb (29.97 in) | Calm | - | 1/2SM |
| | KLAM 290950Z AUTO 00000KT 1/2SM -SN OVC001 00/00 A2998 RMK AO2 |
| 02:30 MST |  Overcast Light Snow | 0°C / 32°F | 0°C / 32°F | 100% | 1015 mb (29.97 in) | Calm | - | 4SM |
| | KLAM 290930Z AUTO 00000KT 4SM -SN OVC001 00/00 A2996 RMK AO2 |
| 02:10 MST |  Overcast Fog And Mist | 0°C / 32°F | 0°C / 32°F | 100% | 1015 mb (29.97 in) | Calm | - | 2 1/2SM |
| | KLAM 290910Z AUTO 00000KT 2 1/2SM BR OVC001 00/00 A2997 RMK AO2 VIS 3/4V5 |
| 01:50 MST |  Overcast Fog | 0°C / 32°F | 0°C / 32°F | 100% | 1015 mb (29.97 in) | Calm | - | 1/2SM |
| | KLAM 290850Z AUTO 00000KT 1/2SM FG OVC001 00/00 A2996 RMK AO2 |
| 01:30 MST |  Overcast Fog And Mist | 0°C / 32°F | 0°C / 32°F | 100% | 1014 mb (29.94 in) | NE 7 kph (NE 4.6 mph) | - | 3/4SM |
| | KLAM 290830Z AUTO 03004KT 3/4SM BR OVC001 00/00 A2995 RMK AO2 |
| 01:10 MST |  Overcast Unknown Precip | 0°C / 32°F | 0°C / 32°F | 100% | 1013 mb (29.91 in) | N 13 kph (N 8.1 mph) | - | 1/4SM |
| | KLAM 290810Z AUTO 36007KT 321V021 1/4SM UP OVC001 00/00 A2991 RMK AO2 |
| 00:50 MST |  Overcast Unknown Precip | 0°C / 32°F | 0°C / 32°F | 100% | 1014 mb (29.94 in) | Calm | 0.25 mm (0.01 in) | 7SM |
| | KLAM 290750Z AUTO 00000KT 7SM UP SCT006 BKN017 OVC031 00/00 A2995 RMK AO2 P0001 |
| 00:30 MST |  Overcast Unknown Precip | 0°C / 32°F | 0°C / 32°F | 100% | 1015 mb (29.97 in) | Calm | 0.25 mm (0.01 in) | 7SM |
| | KLAM 290730Z AUTO 00000KT 7SM UP SCT008 BKN017 OVC026 00/00 A2996 RMK AO2 P0001 |
| 00:10 MST |  Overcast Light Snow | 0°C / 32°F | 0°C / 32°F | 100% | 1015 mb (29.97 in) | SSE 6 kph (SSE 3.5 mph) | - | 3SM |
| | KLAM 290710Z AUTO 20003KT 3SM -SN BKN008 OVC015 00/00 A2998 RMK AO2 |