| 14:53 MST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1024 mb (30.24 in) | SE 15 kph (SE 9.2 mph) | - | 10SM |
| | KIML 152153Z AUTO 13008KT 10SM CLR M04/M08 A3023 RMK AO2 SLP294 T10391083 |
| 13:53 MST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1024 mb (30.24 in) | SE 13 kph (SE 8.1 mph) | - | 10SM |
| | KIML 152053Z AUTO 14007KT 10SM CLR M04/M08 A3023 RMK AO2 SLP295 T10441083 56026 |
| 12:53 MST |  Clear | -6°C / 21°F | -9°C / 16°F | 80% | 1024 mb (30.24 in) | SE 11 kph (SE 6.9 mph) | - | 10SM |
| | KIML 151953Z AUTO 13006KT 10SM CLR M06/M09 A3025 RMK AO2 SLP303 T10561094 |
| 11:53 MST |  Clear Hazy | -7°C / 19°F | -9°C / 16°F | 86% | 1025 mb (30.27 in) | SSE 7 kph (SSE 4.6 mph) | - | 6SM |
| | KIML 151853Z AUTO 16004KT 6SM HZ CLR M07/M09 A3028 RMK AO2 SLP316 T10671094 |
| 11:38 MST |  Partly Cloudy Hazy | -7°C / 19°F | -11°C / 12°F | 73% | 1026 mb (30.3 in) | S 6 kph (S 3.5 mph) | - | 5SM |
| | KIML 151838Z AUTO 18003KT 5SM HZ FEW003 M07/M11 A3029 RMK AO2 |
| 10:53 MST |  Overcast Hazy | -8°C / 18°F | -11°C / 12°F | 79% | 1026 mb (30.3 in) | SSW 7 kph (SSW 4.6 mph) | 0.00 mm (0.00 in) | 3SM |
| | KIML 151753Z AUTO 24004KT 3SM HZ OVC003 M08/M11 A3031 RMK AO2 SNB00E09 SLP332 P0000 60000 T10831111 11083 21194 56010 |
| 10:50 MST |  Overcast Hazy | -9°C / 16°F | -12°C / 10°F | 79% | 1027 mb (30.33 in) | SW 6 kph (SW 3.5 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KIML 151750Z AUTO 23003KT 2 1/2SM HZ OVC001 M09/M12 A3032 RMK AO2 SNB00E09 P0000 |
| 10:36 MST |  Overcast Hazy | -9°C / 16°F | -12°C / 10°F | 79% | 1027 mb (30.33 in) | SW 6 kph (SW 3.5 mph) | 0.00 mm (0.00 in) | 1 1/4SM |
| | KIML 151736Z AUTO 23003KT 1 1/4SM HZ OVC001 M09/M12 A3033 RMK AO2 SNB00E09 P0000 |
| 09:53 MST |  Overcast Fog | -11°C / 12°F | -13°C / 9°F | 85% | 1027 mb (30.33 in) | SSE 6 kph (SSE 3.5 mph) | - | 1/2SM |
| | KIML 151653Z AUTO 20003KT 1/2SM FZFG OVC001 M11/M13 A3034 RMK AO2 SLP343 T11111133 |
| 09:33 MST |  Obscured Fog | -12°C / 10°F | -14°C / 7°F | 85% | 1027 mb (30.33 in) | Calm | - | 1/4SM |
| | KIML 151633Z AUTO 00000KT 1/4SM FZFG VV001 M12/M14 A3034 RMK AO2 |
| 09:15 MST |  Obscured Hazy | -12°C / 10°F | -15°C / 5°F | 79% | 1027 mb (30.33 in) | Calm | - | 1/2SM |
| | KIML 151615Z AUTO 00000KT 1/2SM HZ VV001 M12/M15 A3034 RMK AO2 |
| 08:53 MST |  Obscured Fog | -13°C / 9°F | -16°C / 3°F | 78% | 1028 mb (30.36 in) | Calm | - | 1/4SM |
| | KIML 151553Z AUTO 00000KT 1/4SM FZFG VV001 M13/M16 A3035 RMK AO2 SLP348 T11331156 |
| 08:15 MST |  Overcast Fog | -14°C / 7°F | -17°C / 1°F | 78% | 1028 mb (30.36 in) | Variable 7 kph (Variable 4.6 mph) | - | 1/4SM |
| | KIML 151515Z AUTO VRB04KT 1/4SM FZFG OVC001 M14/M17 A3035 RMK AO2 |
| 08:02 MST |  Overcast Fog And Mist | -14°C / 7°F | -17°C / 1°F | 78% | 1028 mb (30.36 in) | Calm | - | 3/4SM |
| | KIML 151502Z AUTO 00000KT 3/4SM BR OVC001 M14/M17 A3035 RMK AO2 |
| 07:53 MST |  Overcast Hazy | -14°C / 7°F | -17°C / 1°F | 78% | 1028 mb (30.36 in) | Calm | 0.00 mm (0.00 in) | 1/4SM |
| | KIML 151453Z AUTO 00000KT 1/4SM HZ OVC001 M14/M17 A3035 RMK AO2 SNB42E51 SLP349 P0000 60000 T11441172 53008 |
| 06:53 MST |  Obscured Fog | -16°C / 3°F | -18°C / 0°F | 85% | 1027 mb (30.33 in) | Calm | - | 1/4SM |
| | KIML 151353Z AUTO 00000KT 1/4SM FZFG VV001 M16/M18 A3034 RMK AO2 SLP344 T11561178 |
| 06:20 MST |  Obscured Fog | -17°C / 1°F | -18°C / 0°F | 92% | 1027 mb (30.33 in) | Calm | - | 1/4SM |
| | KIML 151320Z AUTO 00000KT 1/4SM FZFG VV001 M17/M18 A3033 RMK AO2 |
| 06:13 MST |  Overcast Fog | -17°C / 1°F | -19°C / -2°F | 85% | 1027 mb (30.33 in) | Calm | - | 1/4SM |
| | KIML 151313Z AUTO 00000KT 1/4SM FZFG OVC002 M17/M19 A3034 RMK AO2 |
| 06:07 MST |  Overcast Hazy | -17°C / 1°F | -20°C / -4°F | 78% | 1027 mb (30.33 in) | Calm | - | 1 1/4SM |
| | KIML 151307Z AUTO 00000KT 1 1/4SM HZ OVC002 M17/M20 A3033 RMK AO2 |
| 05:53 MST |  Overcast | -18°C / 0°F | -20°C / -4°F | 84% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KIML 151253Z AUTO 00000KT 10SM OVC002 M18/M20 A3033 RMK AO2 SLP342 T11781200 |
| 05:38 MST |  Mostly Cloudy | -19°C / -2°F | -22°C / -8°F | 77% | 1027 mb (30.33 in) | Variable 6 kph (Variable 3.5 mph) | - | 10SM |
| | KIML 151238Z AUTO VRB03KT 10SM BKN002 BKN006 M19/M22 A3032 RMK AO2 |
| 05:30 MST |  Partly Cloudy | -19°C / -2°F | -22°C / -8°F | 77% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KIML 151230Z AUTO 00000KT 10SM SCT004 M19/M22 A3033 RMK AO2 |
| 04:53 MST |  Clear | -20°C / -4°F | -22°C / -8°F | 84% | 1027 mb (30.33 in) | W 6 kph (W 3.5 mph) | - | 10SM |
| | KIML 151153Z AUTO 28003KT 10SM CLR M20/M22 A3032 RMK AO2 SLP342 T12001222 11172 21200 53010 |
| 03:53 MST |  Clear | -18°C / 0°F | -21°C / -6°F | 78% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KIML 151053Z AUTO 00000KT 10SM CLR M18/M21 A3031 RMK AO2 SLP330 T11831211 |
| 02:53 MST |  Clear | -19°C / -2°F | -22°C / -8°F | 77% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KIML 150953Z AUTO 00000KT 10SM CLR M19/M22 A3031 RMK AO2 SLP330 T11891217 |
| 01:53 MST |  Clear | -18°C / 0°F | -20°C / -4°F | 84% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KIML 150853Z AUTO 00000KT 10SM CLR M18/M20 A3029 RMK AO2 SLP324 T11781200 51012 |
| 00:53 MST |  Clear | -18°C / 0°F | -21°C / -6°F | 78% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KIML 150753Z AUTO 00000KT 10SM CLR M18/M21 A3027 RMK AO2 SLP319 T11781206 |