| 08:35 MST |  Overcast | -22°C / -8°F | -26°C / -15°F | 70% | 1009 mb (29.8 in) | NNE 17 kph (NNE 10.4 mph) | - | 9SM |
| | KCOD 081535Z 02009KT 9SM FEW043 BKN050 OVC065 M22/M26 A2979 RMK AO1 |
| 08:15 MST |  Mostly Cloudy | -22°C / -8°F | -27°C / -17°F | 64% | 1008 mb (29.77 in) | NE 15 kph (NE 9.2 mph) | - | 5SM |
| | KCOD 081515Z 03008KT 5SM FEW035 SCT044 BKN055 M22/M27 A2977 RMK AO1 |
| 07:55 MST |  Mostly Cloudy | -22°C / -8°F | -27°C / -17°F | 64% | 1008 mb (29.77 in) | N 17 kph (N 10.4 mph) | - | 5SM |
| | KCOD 081455Z 01009KT 5SM FEW029 SCT034 BKN044 M22/M27 A2977 RMK AO1 52020 |
| 07:35 MST |  Overcast | -22°C / -8°F | -26°C / -15°F | 70% | 1008 mb (29.77 in) | N 11 kph (N 6.9 mph) | - | 5SM |
| | KCOD 081435Z 36006KT 5SM BKN029 OVC035 M22/M26 A2976 RMK AO1 |
| 07:15 MST |  Overcast | -22°C / -8°F | -27°C / -17°F | 64% | 1008 mb (29.77 in) | N 6 kph (N 3.5 mph) | - | 5SM |
| | KCOD 081415Z 01003KT 5SM BKN021 OVC031 M22/M27 A2976 RMK AO1 |
| 06:55 MST |  Overcast | -22°C / -8°F | -26°C / -15°F | 70% | 1007 mb (29.74 in) | N 6 kph (N 3.5 mph) | - | 2SM |
| | KCOD 081355Z 35003KT 2SM OVC019 M22/M26 A2975 RMK AO1 - N |
| 06:35 MST |  Overcast | -22°C / -8°F | -26°C / -15°F | 70% | 1007 mb (29.74 in) | NW 6 kph (NW 3.5 mph) | - | 3SM |
| | KCOD 081335Z 31003KT 3SM BKN017 BKN023 OVC028 M22/M26 A2974 RMK AO1 - N |
| 06:15 MST |  Overcast | -22°C / -8°F | -27°C / -17°F | 64% | 1007 mb (29.74 in) | NW 6 kph (NW 3.5 mph) | - | 5SM |
| | KCOD 081315Z 32003KT 5SM BKN029 BKN036 OVC046 M22/M27 A2974 RMK AO1 - N |
| 05:55 MST |  Overcast | -22°C / -8°F | -27°C / -17°F | 64% | 1007 mb (29.74 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KCOD 081255Z 32003KT 10SM OVC044 M22/M27 A2973 RMK AO1 - N |
| 05:35 MST |  Overcast | -22°C / -8°F | -26°C / -15°F | 70% | 1006 mb (29.71 in) | NE 17 kph (NE 10.4 mph) | - | 8SM |
| | KCOD 081235Z 03009KT 8SM OVC040 M22/M26 A2972 RMK AO1 - N |
| 05:15 MST |  Overcast | -23°C / -9°F | -28°C / -18°F | 64% | 1006 mb (29.71 in) | Calm | - | 3SM |
| | KCOD 081215Z 00000KT 3SM OVC042 M23/M28 A2971 RMK AO1 - N |
| 04:55 MST |  Overcast | -23°C / -9°F | -27°C / -17°F | 70% | 1006 mb (29.71 in) | W 7 kph (W 4.6 mph) | - | 8SM |
| | KCOD 081155Z 27004KT 8SM OVC046 M23/M27 A2971 RMK AO1 11230 21240 57003 |
| 04:35 MST |  Overcast | -23°C / -9°F | -27°C / -17°F | 70% | 1006 mb (29.71 in) | Calm | - | 10SM |
| | KCOD 081135Z 00000KT 10SM BKN048 OVC065 M23/M27 A2970 RMK AO1 |
| 04:15 MST |  Mostly Cloudy | -23°C / -9°F | -28°C / -18°F | 64% | 1006 mb (29.71 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KCOD 081115Z 35004KT 10SM FEW028 BKN065 BKN080 M23/M28 A2970 RMK AO1 |
| 03:55 MST |  Mostly Cloudy | -23°C / -9°F | -27°C / -17°F | 70% | 1006 mb (29.71 in) | NNE 11 kph (NNE 6.9 mph) | - | 10SM |
| | KCOD 081055Z 02006KT 10SM SCT030 BKN036 BKN090 M23/M27 A2970 RMK AO1 |
| 03:35 MST |  Overcast | -23°C / -9°F | -27°C / -17°F | 70% | 1006 mb (29.71 in) | NNE 15 kph (NNE 9.2 mph) | - | 9SM |
| | KCOD 081035Z 02008KT 9SM OVC034 M23/M27 A2971 RMK AO1 |
| 03:15 MST |  Mostly Cloudy | -24°C / -11°F | -28°C / -18°F | 70% | 1006 mb (29.71 in) | NE 15 kph (NE 9.2 mph) | - | 10SM |
| | KCOD 081015Z 03008KT 10SM SCT036 BKN044 BKN065 M24/M28 A2971 RMK AO1 |
| 02:55 MST |  Partly Cloudy | -24°C / -11°F | -27°C / -17°F | 76% | 1006 mb (29.71 in) | NE 15 kph (NE 9.2 mph) | - | 10SM |
| | KCOD 080955Z 03008KT 10SM SCT075 M24/M27 A2971 RMK AO1 |
| 02:35 MST |  Partly Cloudy | -24°C / -11°F | -27°C / -17°F | 76% | 1006 mb (29.71 in) | NE 15 kph (NE 9.2 mph) | - | 10SM |
| | KCOD 080935Z 04008KT 10SM FEW018 M24/M27 A2972 RMK AO1 |
| 02:15 MST |  Mostly Cloudy | -23°C / -9°F | -27°C / -17°F | 70% | 1006 mb (29.71 in) | NE 15 kph (NE 9.2 mph) | - | 9SM |
| | KCOD 080915Z 04008KT 9SM SCT018 SCT027 BKN041 M23/M27 A2972 RMK AO1 |
| 01:55 MST |  Overcast | -23°C / -9°F | -27°C / -17°F | 70% | 1006 mb (29.71 in) | NE 11 kph (NE 6.9 mph) | - | 10SM |
| | KCOD 080855Z 03006KT 10SM BKN049 BKN060 OVC090 M23/M27 A2972 RMK AO1 57014 |
| 01:35 MST |  Overcast | -23°C / -9°F | -27°C / -17°F | 70% | 1006 mb (29.71 in) | NE 11 kph (NE 6.9 mph) | - | 10SM |
| | KCOD 080835Z 03006KT 10SM BKN060 BKN070 OVC110 M23/M27 A2972 RMK AO1 |
| 01:15 MST |  Overcast | -23°C / -9°F | -27°C / -17°F | 70% | 1006 mb (29.71 in) | NE 13 kph (NE 8.1 mph) | - | 10SM |
| | KCOD 080815Z 04007KT 10SM BKN070 OVC090 M23/M27 A2972 RMK AO1 |
| 00:55 MST |  Partly Cloudy | -23°C / -9°F | -27°C / -17°F | 70% | 1007 mb (29.74 in) | NE 11 kph (NE 6.9 mph) | - | 10SM |
| | KCOD 080755Z 03006KT 10SM SCT090 M23/M27 A2973 RMK AO1 |
| 00:35 MST |  Partly Cloudy | -24°C / -11°F | -27°C / -17°F | 76% | 1007 mb (29.74 in) | NE 9 kph (NE 5.8 mph) | - | 10SM |
| | KCOD 080735Z 03005KT 10SM FEW019 M24/M27 A2973 RMK AO1 |
| 00:15 MST |  Mostly Cloudy | -23°C / -9°F | -27°C / -17°F | 70% | 1007 mb (29.74 in) | NE 9 kph (NE 5.8 mph) | - | 8SM |
| | KCOD 080715Z 05005KT 8SM BKN019 BKN028 BKN032 M23/M27 A2974 RMK AO1 |