| 11:05 MST |  Clear | 0°C / 32°F | 0°C / 32°F | 100% | 1016 mb (30 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KALM 021805Z AUTO 19004KT 10SM CLR 00/00 A2999 RMK AO2 |
| 10:45 MST |  Partly Cloudy | 0°C / 32°F | 0°C / 32°F | 100% | 1016 mb (30 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KALM 021745Z AUTO 16005KT 10SM SCT001 00/00 A3000 RMK AO2 |
| 10:25 MST |  Overcast Fog And Mist | 0°C / 32°F | 0°C / 32°F | 100% | 1016 mb (30 in) | SE 9 kph (SE 5.8 mph) | - | 4SM |
| | KALM 021725Z AUTO 12005KT 4SM BR OVC001 00/00 A3000 RMK AO2 |
| 10:05 MST |  Overcast Fog And Mist | -1°C / 30°F | -1°C / 30°F | 100% | 1016 mb (30 in) | SSE 7 kph (SSE 4.6 mph) | - | 3/4SM |
| | KALM 021705Z AUTO 15004KT 3/4SM BR OVC001 M01/M01 A2999 RMK AO2 |
| 09:45 MST |  Overcast Fog | -1°C / 30°F | -1°C / 30°F | 100% | 1016 mb (30 in) | SSE 7 kph (SSE 4.6 mph) | - | 1/4SM |
| | KALM 021645Z AUTO 20004KT 1/4SM FZFG OVC001 M01/M01 A2999 RMK AO2 |
| 09:25 MST |  Overcast Fog | -1°C / 30°F | -1°C / 30°F | 100% | 1015 mb (29.97 in) | SSE 7 kph (SSE 4.6 mph) | - | 1/4SM |
| | KALM 021625Z AUTO 16004KT 1/4SM FZFG OVC001 M01/M01 A2998 RMK AO2 |
| 09:05 MST |  Overcast Fog | -1°C / 30°F | -1°C / 30°F | 100% | 1015 mb (29.97 in) | S 6 kph (S 3.5 mph) | - | 1/2SM |
| | KALM 021605Z AUTO 18003KT 1/2SM FZFG OVC001 M01/M01 A2998 RMK AO2 |
| 08:45 MST |  Overcast Fog | -1°C / 30°F | -1°C / 30°F | 100% | 1015 mb (29.97 in) | Calm | - | M1/4SM |
| | KALM 021545Z AUTO 00000KT M1/4SM FZFG OVC001 M01/M01 A2997 RMK AO2 |
| 08:25 MST |  Overcast Fog | -1°C / 30°F | -1°C / 30°F | 100% | 1015 mb (29.97 in) | SSE 7 kph (SSE 4.6 mph) | - | M1/4SM |
| | KALM 021525Z AUTO 16004KT M1/4SM FZFG OVC001 M01/M01 A2996 RMK AO2 |
| 08:05 MST |  Overcast Fog | -1°C / 30°F | -1°C / 30°F | 100% | 1015 mb (29.97 in) | S 6 kph (S 3.5 mph) | - | 1/2SM |
| | KALM 021505Z AUTO 19003KT 1/2SM FZFG OVC001 M01/M01 A2996 RMK AO2 |
| 07:45 MST |  Overcast Fog | 0°C / 32°F | -1°C / 30°F | 93% | 1014 mb (29.94 in) | S 7 kph (S 4.6 mph) | - | M1/4SM |
| | KALM 021445Z AUTO 18004KT M1/4SM FZFG OVC001 00/M01 A2995 RMK AO2 |
| 07:25 MST |  Overcast Fog | -1°C / 30°F | -1°C / 30°F | 100% | 1014 mb (29.94 in) | SSE 7 kph (SSE 4.6 mph) | - | M1/4SM |
| | KALM 021425Z AUTO 16004KT M1/4SM FZFG OVC001 M01/M01 A2994 RMK AO2 |
| 07:05 MST |  Overcast Fog | 0°C / 32°F | -1°C / 30°F | 93% | 1014 mb (29.94 in) | SSE 9 kph (SSE 5.8 mph) | - | M1/4SM |
| | KALM 021405Z AUTO 15005KT M1/4SM FZFG OVC001 00/M01 A2993 RMK AO2 |
| 06:45 MST |  Overcast Fog | 0°C / 32°F | -1°C / 30°F | 93% | 1013 mb (29.91 in) | SSE 13 kph (SSE 8.1 mph) | - | M1/4SM |
| | KALM 021345Z AUTO 15007KT M1/4SM FZFG OVC001 00/M01 A2992 RMK AO2 |
| 06:25 MST |  Overcast Fog | -1°C / 30°F | -1°C / 30°F | 100% | 1013 mb (29.91 in) | S 15 kph (S 9.2 mph) | - | 1/4SM |
| | KALM 021325Z AUTO 17008KT 1/4SM FZFG OVC001 M01/M01 A2991 RMK AO2 |
| 06:05 MST |  Overcast Fog | -1°C / 30°F | -1°C / 30°F | 100% | 1013 mb (29.91 in) | SSE 17 kph (SSE 10.4 mph) | - | 1/4SM |
| | KALM 021305Z AUTO 15009KT 1/4SM FZFG OVC001 M01/M01 A2990 RMK AO2 |
| 05:45 MST |  Overcast Fog | -1°C / 30°F | -1°C / 30°F | 100% | 1013 mb (29.91 in) | S 11 kph (S 6.9 mph) | - | 1/4SM |
| | KALM 021245Z AUTO 18006KT 1/4SM FZFG OVC001 M01/M01 A2990 RMK AO2 |
| 05:25 MST |  Overcast Fog | -1°C / 30°F | -2°C / 28°F | 93% | 1012 mb (29.88 in) | SSE 13 kph (SSE 8.1 mph) | - | 1/4SM |
| | KALM 021225Z AUTO 15007KT 1/4SM FZFG OVC001 M01/M02 A2989 RMK AO2 |
| 05:05 MST |  Overcast Fog | -2°C / 28°F | -2°C / 28°F | 100% | 1012 mb (29.88 in) | SSE 15 kph (SSE 9.2 mph) | - | 1/4SM |
| | KALM 021205Z AUTO 15008KT 1/4SM FZFG OVC001 M02/M02 A2988 RMK AO2 |
| 04:45 MST |  Overcast Fog | -2°C / 28°F | -2°C / 28°F | 100% | 1012 mb (29.88 in) | SSE 11 kph (SSE 6.9 mph) | - | 1/4SM |
| | KALM 021145Z AUTO 15006KT 1/4SM FZFG OVC001 M02/M02 A2988 RMK AO2 |
| 04:25 MST |  Overcast Fog | -2°C / 28°F | -2°C / 28°F | 100% | 1012 mb (29.88 in) | SSE 13 kph (SSE 8.1 mph) | - | 1/4SM |
| | KALM 021125Z AUTO 16007KT 1/4SM FZFG OVC001 M02/M02 A2987 RMK AO2 |
| 04:05 MST |  Overcast Fog | -3°C / 27°F | -3°C / 27°F | 100% | 1012 mb (29.88 in) | SSE 13 kph (SSE 8.1 mph) | - | M1/4SM |
| | KALM 021105Z AUTO 16007KT M1/4SM FZFG OVC001 M03/M03 A2987 RMK AO2 |
| 03:45 MST |  Overcast Fog | -3°C / 27°F | -4°C / 25°F | 93% | 1011 mb (29.85 in) | SSE 9 kph (SSE 5.8 mph) | - | M1/4SM |
| | KALM 021045Z AUTO 15005KT M1/4SM FZFG OVC001 M03/M04 A2986 RMK AO2 |
| 03:25 MST |  Overcast Fog | -4°C / 25°F | -5°C / 23°F | 93% | 1011 mb (29.85 in) | SE 7 kph (SE 4.6 mph) | - | M1/4SM |
| | KALM 021025Z AUTO 14004KT M1/4SM FZFG OVC001 M04/M05 A2986 RMK AO2 |
| 03:05 MST |  Overcast Fog | -5°C / 23°F | -5°C / 23°F | 100% | 1011 mb (29.85 in) | S 7 kph (S 4.6 mph) | - | 1/4SM |
| | KALM 021005Z AUTO 18004KT 1/4SM FZFG OVC001 M05/M05 A2986 RMK AO2 |
| 02:45 MST |  Clear Fog And Mist | -4°C / 25°F | -5°C / 23°F | 93% | 1011 mb (29.85 in) | SE 7 kph (SE 4.6 mph) | - | 1SM |
| | KALM 020945Z AUTO 14004KT 1SM BR CLR M04/M05 A2985 RMK AO2 |
| 02:25 MST |  Mostly Cloudy Fog | -5°C / 23°F | -6°C / 21°F | 93% | 1010 mb (29.83 in) | SE 11 kph (SE 6.9 mph) | - | 1/4SM |
| | KALM 020925Z AUTO 14006KT 1/4SM FZFG BKN001 M05/M06 A2984 RMK AO2 |
| 02:05 MST |  Mostly Cloudy Fog | -5°C / 23°F | -6°C / 21°F | 93% | 1010 mb (29.83 in) | SSE 9 kph (SSE 5.8 mph) | - | 1/4SM |
| | KALM 020905Z AUTO 16005KT 1/4SM FZFG BKN001 BKN015 M05/M06 A2984 RMK AO2 |
| 01:45 MST |  Mostly Cloudy Fog | -5°C / 23°F | -6°C / 21°F | 93% | 1010 mb (29.83 in) | Calm | - | 1/2SM |
| | KALM 020845Z AUTO 00000KT 1/2SM FZFG BKN015 M05/M06 A2983 RMK AO2 |
| 01:25 MST |  Clear | -5°C / 23°F | -6°C / 21°F | 93% | 1010 mb (29.83 in) | Calm | - | 8SM |
| | KALM 020825Z AUTO 00000KT 8SM CLR M05/M06 A2982 RMK AO2 |
| 01:05 MST |  Clear | -4°C / 25°F | -5°C / 23°F | 93% | 1010 mb (29.83 in) | SE 11 kph (SE 6.9 mph) | - | 10SM |
| | KALM 020805Z AUTO 12006KT 10SM CLR M04/M05 A2982 RMK AO2 |
| 00:45 MST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1009 mb (29.8 in) | Calm | - | 10SM |
| | KALM 020745Z AUTO 00000KT 10SM CLR M02/M04 A2981 RMK AO2 |
| 00:25 MST |  Clear | -2°C / 28°F | -3°C / 27°F | 93% | 1009 mb (29.8 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KALM 020725Z AUTO 36006KT 10SM CLR M02/M03 A2981 RMK AO2 |
| 00:05 MST |  Clear | -2°C / 28°F | -3°C / 27°F | 93% | 1009 mb (29.8 in) | N 15 kph (N 9.2 mph) | - | 10SM |
| | KALM 020705Z AUTO 36008KT 10SM CLR M02/M03 A2980 RMK AO2 |