| 21:44 MST |  Partly Cloudy | -27°C / -17°F | -30°C / -22°F | 76% | 1014 mb (29.94 in) | SSW 6 kph (SSW 3.5 mph) | - | 8SM |
| | KHLN 080444Z 25003KT 8SM FEW015 SCT021 M27/M30 A2993 RMK AO2 |
| 21:14 MST |  Mostly Cloudy | -24°C / -11°F | -28°C / -18°F | 70% | 1014 mb (29.94 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KHLN 080414Z 25005KT 10SM BKN025 M24/M28 A2993 RMK AO2 |
| 20:53 MST |  Partly Cloudy | -25°C / -13°F | -29°C / -20°F | 69% | 1014 mb (29.94 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KHLN 080353Z 25005KT 10SM FEW029 M25/M29 A2993 RMK AO2 SLP263 T12501289 |
| 19:53 MST |  Clear | -24°C / -11°F | -28°C / -18°F | 70% | 1014 mb (29.94 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KHLN 080253Z 25006KT 10SM CLR M24/M28 A2994 RMK AO2 SLP262 T12391283 58001 |
| 18:53 MST |  Partly Cloudy | -23°C / -9°F | -28°C / -18°F | 64% | 1014 mb (29.94 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KHLN 080153Z 25007KT 10SM FEW020 M23/M28 A2994 RMK AO2 SLP262 T12331278 |
| 17:53 MST |  Clear | -24°C / -11°F | -28°C / -18°F | 70% | 1014 mb (29.94 in) | W 11 kph (W 6.9 mph) | - | 10SM |
| | KHLN 080053Z 27006KT 10SM CLR M24/M28 A2994 RMK AO2 SLP264 T12391278 |
| 16:53 MST |  Clear | -23°C / -9°F | -27°C / -17°F | 70% | 1014 mb (29.94 in) | NNW 11 kph (NNW 6.9 mph) | - | 10SM |
| | KHLN 072353Z 33006KT 10SM CLR M23/M27 A2994 RMK AO2 SLP260 T12281272 11194 21228 56009 |
| 15:53 MST |  Clear | -20°C / -4°F | -27°C / -17°F | 54% | 1014 mb (29.94 in) | Calm | - | 10SM |
| | KHLN 072253Z AUTO 00000KT 10SM CLR M20/M27 A2994 RMK AO2 SLP255 T12001267 TSNO |
| 14:53 MST |  Clear | -19°C / -2°F | -26°C / -15°F | 54% | 1015 mb (29.97 in) | Calm | - | 10SM |
| | KHLN 072153Z 00000KT 10SM CLR M19/M26 A2996 RMK AO2 SLP258 T11941261 |
| 13:53 MST |  Clear | -20°C / -4°F | -27°C / -17°F | 54% | 1015 mb (29.97 in) | NNW 7 kph (NNW 4.6 mph) | - | 10SM |
| | KHLN 072053Z 33004KT 10SM CLR M20/M27 A2997 RMK AO2 SLP262 T12001267 56030 |
| 12:53 MST |  Clear | -20°C / -4°F | -27°C / -17°F | 54% | 1016 mb (30 in) | NNE 11 kph (NNE 6.9 mph) | - | 10SM |
| | KHLN 071953Z 02006KT 10SM CLR M20/M27 A3000 RMK AO2 SLP273 T12001267 |
| 11:53 MST |  Clear | -21°C / -6°F | -27°C / -17°F | 59% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KHLN 071853Z 00000KT 10SM CLR M21/M27 A3003 RMK AO2 SLP284 T12061272 |
| 10:53 MST |  Clear | -22°C / -8°F | -28°C / -18°F | 58% | 1018 mb (30.06 in) | NW 7 kph (NW 4.6 mph) | - | 10SM |
| | KHLN 071753Z 32004KT 10SM CLR M22/M28 A3007 RMK AO2 SLP300 T12171278 11217 21239 58014 |
| 09:53 MST |  Clear | -22°C / -8°F | -28°C / -18°F | 58% | 1019 mb (30.09 in) | NW 9 kph (NW 5.8 mph) | - | 10SM |
| | KHLN 071653Z 30005KT 10SM CLR M22/M28 A3009 RMK AO2 SLP308 T12221278 |
| 08:53 MST |  Clear | -23°C / -9°F | -28°C / -18°F | 64% | 1020 mb (30.12 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KHLN 071553Z 25006KT 10SM CLR M23/M28 A3011 RMK AO2 SLP319 T12331278 |
| 07:53 MST |  Clear | -24°C / -11°F | -28°C / -18°F | 70% | 1020 mb (30.12 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KHLN 071453Z 25008KT 10SM CLR M24/M28 A3011 RMK AO2 SLP320 T12391278 56006 |
| 06:53 MST |  Clear | -23°C / -9°F | -27°C / -17°F | 70% | 1020 mb (30.12 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KHLN 071353Z 25007KT 10SM CLR M23/M27 A3012 RMK AO2 SLP321 T12331272 |
| 05:53 MST |  Clear | -23°C / -9°F | -27°C / -17°F | 70% | 1020 mb (30.12 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KHLN 071253Z AUTO 26007KT 10SM CLR M23/M27 A3012 RMK AO2 SLP319 T12331267 |
| 05:36 MST |  Partly Cloudy | -23°C / -9°F | -27°C / -17°F | 70% | 1020 mb (30.12 in) | W 15 kph (W 9.2 mph) | - | 9SM |
| | KHLN 071236Z AUTO 27008KT 9SM SCT024 M23/M27 A3012 RMK AO2 |
| 05:18 MST |  Overcast | -23°C / -9°F | -26°C / -15°F | 77% | 1020 mb (30.12 in) | W 13 kph (W 8.1 mph) | - | 8SM |
| | KHLN 071218Z AUTO 27007KT 8SM OVC026 M23/M26 A3012 RMK AO2 |
| 04:53 MST |  Overcast | -22°C / -8°F | -26°C / -15°F | 70% | 1021 mb (30.15 in) | SSW 13 kph (SSW 8.1 mph) | - | 9SM |
| | KHLN 071153Z AUTO 26007KT 9SM OVC034 M22/M26 A3014 RMK AO2 SLP321 60001 70001 T12221261 11200 21222 58013 |
| 03:53 MST |  Overcast Hazy | -22°C / -8°F | -26°C / -15°F | 70% | 1021 mb (30.15 in) | SSW 13 kph (SSW 8.1 mph) | - | 6SM |
| | KHLN 071053Z AUTO 26007KT 6SM HZ SCT028 BKN035 OVC050 M22/M26 A3016 RMK AO2 SLP327 T12171256 |
| 03:07 MST |  Overcast Hazy | -22°C / -8°F | -25°C / -13°F | 77% | 1022 mb (30.18 in) | W 13 kph (W 8.1 mph) | - | 5SM |
| | KHLN 071007Z AUTO 27007KT 5SM HZ BKN026 BKN033 OVC055 M22/M25 A3017 RMK AO2 |
| 02:53 MST |  Overcast Hazy | -21°C / -6°F | -24°C / -11°F | 77% | 1022 mb (30.18 in) | W 13 kph (W 8.1 mph) | - | 6SM |
| | KHLN 070953Z AUTO 27007KT 6SM HZ SCT034 OVC055 M21/M24 A3017 RMK AO2 SLP328 T12111244 |
| 02:32 MST |  Overcast Hazy | -21°C / -6°F | -24°C / -11°F | 77% | 1022 mb (30.18 in) | W 15 kph (W 9.2 mph) | - | 5SM |
| | KHLN 070932Z AUTO 27008KT 5SM HZ BKN032 OVC055 M21/M24 A3018 RMK AO2 |
| 01:53 MST |  Overcast Hazy | -21°C / -6°F | -24°C / -11°F | 77% | 1022 mb (30.18 in) | W 11 kph (W 6.9 mph) | 0.25 mm (0.01 in) | 3SM |
| | KHLN 070853Z AUTO 27006KT 3SM HZ OVC022 M21/M24 A3018 RMK AO2 SNE38 SLP328 P0001 60001 T12061239 56008 |
| 01:50 MST |  Overcast Hazy | -21°C / -6°F | -24°C / -11°F | 77% | 1022 mb (30.18 in) | W 9 kph (W 5.8 mph) | 0.00 mm (0.00 in) | 3SM |
| | KHLN 070850Z AUTO 28005KT 3SM HZ OVC022 M21/M24 A3018 RMK AO2 SNE38 P0000 |
| 00:53 MST |  Overcast Light Snow | -21°C / -6°F | -24°C / -11°F | 77% | 1022 mb (30.18 in) | NW 13 kph (NW 8.1 mph) | 0.00 mm (0.00 in) | 2SM |
| | KHLN 070753Z AUTO 31007KT 2SM -SN OVC022 M21/M24 A3019 RMK AO2 SNB31 SLP336 P0000 T12061244 |
| 00:41 MST |  Overcast Light Snow | -21°C / -6°F | -24°C / -11°F | 77% | 1023 mb (30.21 in) | NW 13 kph (NW 8.1 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KHLN 070741Z AUTO 31007KT 2 1/2SM -SN OVC022 M21/M24 A3020 RMK AO2 SNB31 P0000 |
| 00:25 MST |  Overcast Hazy | -20°C / -4°F | -25°C / -13°F | 65% | 1023 mb (30.21 in) | NW 13 kph (NW 8.1 mph) | - | 4SM |
| | KHLN 070725Z AUTO 31007KT 4SM HZ OVC026 M20/M25 A3020 RMK AO2 |