| 13:53 MST | 
Clear | 4°C / 39°F | -14°C / 7°F | 26% | 1015 mb
(29.97 in) | NW 11 kph
(NW 6.9 mph) | - | 10SM |
| | KBYI 042053Z AUTO 32006KT 10SM CLR 04/M14 A2996
RMK AO2 SLP171 T00391144 56049 |
| 12:53 MST |
Clear | 3°C / 37°F | -14°C / 7°F | 28% | 1016 mb
(30 in) | Variable 6 kph
(Variable 3.5 mph) | - | 10SM |
| | KBYI 041953Z AUTO VRB03KT 10SM CLR 03/M14 A3000
RMK AO2 SLP189 T00331139 |
| 11:53 MST |
Clear | 2°C / 36°F | -13°C / 9°F | 32% | 1018 mb
(30.06 in) | NNW 7 kph
(NNW 4.6 mph) | - | 10SM |
| | KBYI 041853Z AUTO 33004KT 10SM CLR 02/M13 A3006
RMK AO2 SLP207 T00171128 |
| 10:53 MST |
Clear | -2°C / 28°F | -13°C / 9°F | 43% | 1020 mb
(30.12 in) | ESE 7 kph
(ESE 4.6 mph) | - | 10SM |
| | KBYI 041753Z AUTO 11004KT 10SM CLR M02/M13 A3012
RMK AO2 SLP240 T10171128 11017 21122 56009 |
| 09:53 MST |
Clear | -6°C / 21°F | -13°C / 9°F | 58% | 1020 mb
(30.12 in) | ESE 7 kph
(ESE 4.6 mph) | - | 10SM |
| | KBYI 041653Z AUTO 11004KT 10SM CLR M06/M13 A3013
RMK AO2 SLP249 T10611128 |
| 08:53 MST |
Clear | -9°C / 16°F | -14°C / 7°F | 67% | 1021 mb
(30.15 in) | Calm | - | 10SM |
| | KBYI 041553Z AUTO 00000KT 10SM CLR M09/M14 A3014
RMK AO2 SLP257 T10941144 |
| 07:53 MST |
Clear | -11°C / 12°F | -16°C / 3°F | 67% | 1021 mb
(30.15 in) | Calm | - | 10SM |
| | KBYI 041453Z AUTO 00000KT 10SM CLR M11/M16 A3015
RMK AO2 SLP265 T11111156 58013 |
| 06:53 MST | 
Clear | -12°C / 10°F | -16°C / 3°F | 72% | 1022 mb
(30.18 in) | ESE 6 kph
(ESE 3.5 mph) | - | 10SM |
| | KBYI 041353Z AUTO 11003KT 10SM CLR M12/M16 A3018
RMK AO2 SLP272 T11171156 |
| 05:53 MST |
Clear | -12°C / 10°F | -15°C / 5°F | 79% | 1022 mb
(30.18 in) | SE 6 kph
(SE 3.5 mph) | - | 10SM |
| | KBYI 041253Z AUTO 14003KT 10SM CLR M12/M15 A3018
RMK AO2 SLP266 T11171150 |
| 04:53 MST |
Clear | -10°C / 14°F | -15°C / 5°F | 67% | 1023 mb
(30.21 in) | Calm | - | 10SM |
| | KBYI 041153Z AUTO 00000KT 10SM CLR M10/M15 A3020
RMK AO2 SLP266 T11001150 11083 21122 58015 |
| 03:53 MST |
Clear | -9°C / 16°F | -15°C / 5°F | 62% | 1023 mb
(30.21 in) | SW 7 kph
(SW 4.6 mph) | - | 10SM |
| | KBYI 041053Z AUTO 21004KT 10SM CLR M09/M15 A3022
RMK AO2 SLP269 T10941150 |
| 02:53 MST |
Clear | -11°C / 12°F | -16°C / 3°F | 67% | 1024 mb
(30.24 in) | Calm | - | 10SM |
| | KBYI 040953Z AUTO 00000KT 10SM CLR M11/M16 A3023
RMK AO2 SLP276 T11061156 |
| 01:53 MST |
Clear | -11°C / 12°F | -17°C / 1°F | 62% | 1024 mb
(30.24 in) | Calm | - | 10SM |
| | KBYI 040853Z AUTO 00000KT 10SM CLR M11/M17 A3024
RMK AO2 SLP283 T11111172 58009 |
| 00:53 MST |
Clear | -11°C / 12°F | -17°C / 1°F | 62% | 1025 mb
(30.27 in) | Calm | - | 10SM |
| | KBYI 040753Z AUTO 00000KT 10SM CLR M11/M17 A3026
RMK AO2 SLP289 T11111167 |
