| 04:55 MST |  Clear | -3°C / 27°F | -11°C / 12°F | 54% | 1009 mb (29.8 in) | N 9 kph (N 5.8 mph) | - | 10SM |
| | KAFF 011155Z AUTO 01005KT 10SM CLR M03/M11 A2981 RMK AO2 SLP097 T10331110 10010 21050 56021 |
| 03:55 MST |  Clear | -2°C / 28°F | -12°C / 10°F | 47% | 1010 mb (29.83 in) | N 13 kph (N 8.1 mph) | - | 10SM |
| | KAFF 011055Z AUTO 36007KT 10SM CLR M02/M12 A2983 RMK AO2 SLP078 T10151122 |
| 02:55 MST |  Clear | -3°C / 27°F | -11°C / 12°F | 54% | 1011 mb (29.85 in) | Calm | - | 10SM |
| | KAFF 010955Z AUTO 00000KT 10SM CLR M03/M11 A2985 RMK AO2 SLP076 T10251111 |
| 01:55 MST |  Clear | 1°C / 34°F | -14°C / 7°F | 32% | 1012 mb (29.88 in) | NW 11 kph (NW 6.9 mph) | - | 10SM |
| | KAFF 010855Z AUTO 30006G15KT 10SM CLR 01/M14 A2988 RMK AO2 SLP076 T00071136 56019 |
| 00:55 MST |  Clear | -3°C / 27°F | -10°C / 14°F | 59% | 1013 mb (29.91 in) | NE 9 kph (NE 5.8 mph) | - | 10SM |
| | KAFF 010755Z AUTO 05005KT 10SM CLR M03/M10 A2990 RMK AO2 SLP102 T10261104 |