| 20:52 MST |  Overcast | -6°C / 21°F | -9°C / 16°F | 80% | 1008 mb (29.77 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KALS 240352Z AUTO 30003KT 10SM BKN034 OVC045 M06/M09 A2978 RMK AO2 SLP109 T10611089 |
| 19:52 MST |  Overcast | -7°C / 19°F | -9°C / 16°F | 86% | 1007 mb (29.74 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KALS 240252Z AUTO 25005KT 10SM SCT038 OVC047 M07/M09 A2974 RMK AO2 SLP101 T10671094 51018 |
| 18:52 MST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1007 mb (29.74 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KALS 240152Z AUTO 24005KT 10SM OVC055 M04/M08 A2973 RMK AO2 SLP087 T10441078 |
| 17:52 MST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 1006 mb (29.71 in) | Calm | - | 10SM |
| | KALS 240052Z AUTO 00000KT 10SM OVC060 M05/M08 A2971 RMK AO2 SLP084 T10501083 |
| 16:52 MST |  Overcast | -3°C / 27°F | -7°C / 19°F | 74% | 1005 mb (29.68 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KALS 232352Z AUTO 16006KT 10SM SCT050 OVC060 M03/M07 A2968 RMK AO2 SLP070 T10331072 10033 21033 53013 |
| 15:52 MST |  Overcast | 1°C / 34°F | -6°C / 21°F | 60% | 1004 mb (29.65 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KALS 232252Z AUTO 19006KT 10SM FEW044 OVC060 01/M06 A2965 RMK AO2 SLP048 T00061061 |
| 14:52 MST |  Overcast | 2°C / 36°F | -7°C / 19°F | 52% | 1004 mb (29.65 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KALS 232152Z AUTO 01003KT 10SM OVC060 02/M07 A2964 RMK AO2 SLP036 T00221072 |
| 13:52 MST |  Overcast | 2°C / 36°F | -7°C / 19°F | 52% | 1003 mb (29.62 in) | N 15 kph (N 9.2 mph) | - | 10SM |
| | KALS 232052Z AUTO 01008KT 10SM FEW035 OVC050 02/M07 A2963 RMK AO2 SLP033 T00221067 56006 |
| 12:52 MST |  Partly Cloudy | 2°C / 36°F | -6°C / 21°F | 56% | 1003 mb (29.62 in) | N 15 kph (N 9.2 mph) | - | 10SM |
| | KALS 231952Z AUTO 01008KT 10SM SCT028 SCT034 02/M06 A2963 RMK AO2 SLP033 T00221056 |
| 12:31 MST |  Partly Cloudy | 2°C / 36°F | -6°C / 21°F | 56% | 1003 mb (29.62 in) | N 13 kph (N 8.1 mph) | - | 10SM |
| | KALS 231931Z AUTO 01007G14KT 10SM FEW026 SCT034 02/M06 A2963 RMK AO2 |
| 12:05 MST |  Overcast | 1°C / 34°F | -4°C / 25°F | 70% | 1004 mb (29.65 in) | N 15 kph (N 9.2 mph) | - | 10SM |
| | KALS 231905Z AUTO 36008KT 10SM BKN026 OVC037 01/M04 A2964 RMK AO2 |
| 11:52 MST |  Overcast | 1°C / 34°F | -5°C / 23°F | 65% | 1004 mb (29.65 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KALS 231852Z AUTO 35006KT 10SM SCT024 BKN035 OVC042 01/M05 A2965 RMK AO2 SLP043 T00111050 |
| 11:47 MST |  Overcast | 1°C / 34°F | -5°C / 23°F | 65% | 1004 mb (29.65 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KALS 231847Z AUTO 35006KT 10SM SCT023 OVC038 01/M05 A2965 RMK AO2 |
| 11:17 MST |  Mostly Cloudy | 0°C / 32°F | -5°C / 23°F | 69% | 1004 mb (29.65 in) | N 9 kph (N 5.8 mph) | - | 10SM |
| | KALS 231817Z AUTO 36005KT 10SM SCT021 BKN029 BKN033 00/M05 A2966 RMK AO2 |
| 10:52 MST |  Clear | 0°C / 32°F | -4°C / 25°F | 75% | 1005 mb (29.68 in) | NW 11 kph (NW 6.9 mph) | - | 10SM |
| | KALS 231752Z AUTO 32006KT 10SM CLR 00/M04 A2967 RMK AO2 SLP050 60000 T00001044 10000 21056 50002 |
| 10:20 MST |  Partly Cloudy | -1°C / 30°F | -5°C / 23°F | 75% | 1005 mb (29.68 in) | NNW 15 kph (NNW 9.2 mph) | - | 10SM |
| | KALS 231720Z AUTO 34008KT 10SM SCT025 M01/M05 A2968 RMK AO2 |
| 09:52 MST |  Overcast | -2°C / 28°F | -6°C / 21°F | 74% | 1005 mb (29.68 in) | NNW 13 kph (NNW 8.1 mph) | - | 10SM |
| | KALS 231652Z AUTO 33007KT 10SM OVC023 M02/M06 A2968 RMK AO2 SLP060 T10171056 |
| 08:52 MST |  Overcast Fog And Mist | -4°C / 25°F | -6°C / 21°F | 86% | 1005 mb (29.68 in) | N 11 kph (N 6.9 mph) | 0.00 mm (0.00 in) | 5SM |
| | KALS 231552Z AUTO 35006KT 5SM BR OVC021 M04/M06 A2968 RMK AO2 SNB21E39 SLP066 P0000 T10391061 |
| 08:14 MST |  Overcast | -4°C / 25°F | -7°C / 19°F | 80% | 1005 mb (29.68 in) | N 11 kph (N 6.9 mph) | - | 9SM |
| | KALS 231514Z AUTO 35006KT 9SM BKN023 BKN035 OVC047 M04/M07 A2967 RMK AO2 |
| 07:52 MST |  Overcast | -4°C / 25°F | -7°C / 19°F | 80% | 1004 mb (29.65 in) | N 9 kph (N 5.8 mph) | 0.00 mm (0.00 in) | 10SM |
| | KALS 231452Z AUTO 35005KT 10SM FEW021 OVC045 M04/M07 A2966 RMK AO2 SNB05E15 SLP065 P0000 60000 T10441072 51011 |
| 06:52 MST |  Overcast | -5°C / 23°F | -7°C / 19°F | 86% | 1004 mb (29.65 in) | NW 9 kph (NW 5.8 mph) | - | 7SM |
| | KALS 231352Z AUTO 32005KT 7SM SCT019 OVC031 M05/M07 A2965 RMK AO2 SLP062 T10501072 |
| 05:52 MST |  Overcast | -5°C / 23°F | -7°C / 19°F | 86% | 1004 mb (29.65 in) | Calm | - | 7SM |
| | KALS 231252Z AUTO 00000KT 7SM FEW008 OVC023 M05/M07 A2964 RMK AO2 SLP052 T10501067 |
| 04:52 MST |  Overcast Fog And Mist | -6°C / 21°F | -7°C / 19°F | 93% | 1003 mb (29.62 in) | NW 9 kph (NW 5.8 mph) | 0.00 mm (0.00 in) | 5SM |
| | KALS 231152Z AUTO 32005KT 5SM BR BKN025 OVC095 M06/M07 A2962 RMK AO2 SNB12E45 SLP043 P0000 60001 70001 T10561072 11039 21056 58002 |
| 03:52 MST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 1003 mb (29.62 in) | NW 9 kph (NW 5.8 mph) | 0.00 mm (0.00 in) | 9SM |
| | KALS 231052Z AUTO 32005KT 9SM FEW019 BKN024 OVC070 M06/M07 A2962 RMK AO2 SNE29 SLP041 P0000 T10561072 |
| 03:26 MST |  Overcast Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1003 mb (29.62 in) | NW 7 kph (NW 4.6 mph) | 0.00 mm (0.00 in) | 4SM |
| | KALS 231026Z AUTO 31004KT 4SM -SN BR FEW010 SCT024 OVC085 M06/M07 A2963 RMK AO2 P0000 |
| 03:14 MST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1003 mb (29.62 in) | NW 7 kph (NW 4.6 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KALS 231014Z AUTO 32004KT 2 1/2SM -SN BR SCT010 BKN035 OVC090 M05/M07 A2963 RMK AO2 P0000 |
| 02:52 MST |  Overcast Light Snow | -5°C / 23°F | -8°C / 18°F | 80% | 1003 mb (29.62 in) | NNW 11 kph (NNW 6.9 mph) | 0.25 mm (0.01 in) | 2 1/2SM |
| | KALS 230952Z AUTO 33006KT 2 1/2SM -SN BKN014 OVC034 M05/M08 A2963 RMK AO2 SNB34 SLP039 P0001 T10501078 |
| 01:52 MST |  Overcast | -5°C / 23°F | -7°C / 19°F | 86% | 1003 mb (29.62 in) | N 9 kph (N 5.8 mph) | 0.00 mm (0.00 in) | 9SM |
| | KALS 230852Z AUTO 35005KT 9SM BKN014 BKN024 OVC055 M05/M07 A2963 RMK AO2 SNB07E25 SLP036 P0000 60000 T10501072 55002 |
| 01:01 MST |  Overcast Fog And Mist | -4°C / 25°F | -6°C / 21°F | 86% | 1003 mb (29.62 in) | NNW 7 kph (NNW 4.6 mph) | - | 5SM |
| | KALS 230801Z AUTO 34004KT 5SM BR SCT005 OVC012 M04/M06 A2963 RMK AO2 |
| 00:52 MST |  Overcast Fog And Mist | -4°C / 25°F | -6°C / 21°F | 86% | 1003 mb (29.62 in) | N 9 kph (N 5.8 mph) | - | 4SM |
| | KALS 230752Z AUTO 35005KT 4SM BR BKN005 OVC012 M04/M06 A2963 RMK AO2 SLP035 T10441061 |
| 00:43 MST |  Overcast Fog And Mist | -5°C / 23°F | -6°C / 21°F | 93% | 1003 mb (29.62 in) | NNW 6 kph (NNW 3.5 mph) | - | 6SM |
| | KALS 230743Z AUTO 33003KT 6SM BR FEW005 BKN012 OVC060 M05/M06 A2963 RMK AO2 |
| 00:00 MST |  Overcast Fog And Mist | -4°C / 25°F | -6°C / 21°F | 86% | 1003 mb (29.62 in) | Calm | - | 4SM |
| | KALS 230700Z AUTO 00000KT 4SM BR FEW004 BKN047 OVC065 M04/M06 A2962 RMK AO2 |