| 10:15 MST | 
Mostly Cloudy | -19°C / -2°F | -23°C / -9°F | 71% | 1034 mb
(30.53 in) | Calm | - | 8SM |
| | KGUC 151715Z AUTO 00000KT 8SM BKN013 M19/M23 A3053
RMK AO1 |
| 09:55 MST | 
Partly Cloudy | -19°C / -2°F | -26°C / -15°F | 54% | 1034 mb
(30.53 in) | Calm | - | 10SM |
| | KGUC 151655Z AUTO 00000KT 10SM FEW013 M19/M26 A3053
RMK AO1 |
| 09:35 MST | 
Clear | -20°C / -4°F | N/A | N/A | 1034 mb
(30.53 in) | Calm | - | 10SM |
| | KGUC 151635Z AUTO 00000KT 10SM CLR M20/ A3052
RMK AO1 |
| 09:15 MST |
Mostly Cloudy | -21°C / -6°F | -23°C / -9°F | 84% | 1033 mb
(30.5 in) | Calm | - | 7SM |
| | KGUC 151615Z AUTO 00000KT 7SM BKN013 M21/M23 A3051
RMK AO1 |
| 08:55 MST | 
Overcast | -22°C / -8°F | -31°C / -24°F | 44% | 1033 mb
(30.5 in) | Calm | - | 4SM |
| | KGUC 151555Z AUTO 00000KT 4SM OVC013 M22/M31 A3051
RMK AO1 |
| 08:35 MST |
Mostly Cloudy | -23°C / -9°F | N/A | N/A | 1033 mb
(30.5 in) | Calm | - | 2 1/2SM |
| | KGUC 151535Z AUTO 00000KT 2 1/2SM BKN013 M23/ A3050
RMK AO1 |
| 08:15 MST |
Clear | -24°C / -11°F | N/A | N/A | 1033 mb
(30.5 in) | Calm | - | 10SM |
| | KGUC 151515Z AUTO 00000KT 10SM CLR M24/ A3049
RMK AO1 |
| 07:55 MST |
Clear | -23°C / -9°F | -23°C / -9°F | 100% | 1032 mb
(30.48 in) | Calm | - | 10SM |
| | KGUC 151455Z AUTO 00000KT 10SM CLR M23/M23 A3048
RMK AO1 52030 |
| 07:35 MST |
Partly Cloudy | -23°C / -9°F | -27°C / -17°F | 70% | 1032 mb
(30.48 in) | Calm | - | 10SM |
| | KGUC 151435Z AUTO 00000KT 10SM FEW018 M23/M27 A3047
RMK AO1 |
| 07:15 MST | 
Clear | -24°C / -11°F | -28°C / -18°F | 70% | 1031 mb
(30.45 in) | Calm | - | 10SM |
| | KGUC 151415Z AUTO 00000KT 10SM CLR M24/M28 A3046
RMK AO1 |
| 06:55 MST |
Clear | -24°C / -11°F | -24°C / -11°F | 100% | 1031 mb
(30.45 in) | Calm | - | 7SM |
| | KGUC 151355Z AUTO 00000KT 7SM CLR M24/M24 A3045
RMK AO1 |
| 06:35 MST |
Clear | -22°C / -8°F | -27°C / -17°F | 64% | 1031 mb
(30.45 in) | Calm | - | 10SM |
| | KGUC 151335Z AUTO 00000KT 10SM CLR M22/M27 A3044
RMK AO1 |
| 06:15 MST |
Clear | -23°C / -9°F | -27°C / -17°F | 70% | 1030 mb
(30.42 in) | Calm | - | 5SM |
| | KGUC 151315Z AUTO 00000KT 5SM CLR M23/M27 A3042
RMK AO1 |
| 05:55 MST |
Clear | -22°C / -8°F | -26°C / -15°F | 70% | 1030 mb
(30.42 in) | Calm | - | 10SM |
| | KGUC 151255Z AUTO 00000KT 10SM CLR M22/M26 A3042
RMK AO1 |
| 05:35 MST |
Clear | -21°C / -6°F | -27°C / -17°F | 59% | 1030 mb
(30.42 in) | ENE 7 kph
(ENE 4.6 mph) | - | 10SM |
| | KGUC 151235Z AUTO 06004KT 10SM CLR M21/M27 A3041
RMK AO1 |
| 05:15 MST |
Clear | -22°C / -8°F | -22°C / -8°F | 100% | 1029 mb
(30.39 in) | ENE 9 kph
(ENE 5.8 mph) | - | 10SM |
| | KGUC 151215Z AUTO 06005KT 10SM CLR M22/M22 A3040
RMK AO1 |
| 04:55 MST |
Clear | -21°C / -6°F | -27°C / -17°F | 59% | 1029 mb
(30.39 in) | NE 9 kph
(NE 5.8 mph) | - | 10SM |
| | KGUC 151155Z AUTO 04005KT 10SM CLR M21/M27 A3039
RMK AO1 11160 21220 52017 |
| 04:35 MST |
Clear | -21°C / -6°F | -21°C / -6°F | 100% | 1029 mb
(30.39 in) | Calm | - | 10SM |
| | KGUC 151135Z AUTO 00000KT 10SM CLR M21/M21 A3039
RMK AO1 |
| 04:15 MST |
Clear | -21°C / -6°F | -24°C / -11°F | 77% | 1029 mb
(30.39 in) | NE 6 kph
(NE 3.5 mph) | - | 10SM |
| | KGUC 151115Z AUTO 05003KT 10SM CLR M21/M24 A3038
RMK AO1 |
| 03:55 MST |
Clear | -22°C / -8°F | -24°C / -11°F | 84% | 1029 mb
(30.39 in) | ENE 7 kph
(ENE 4.6 mph) | - | 10SM |
| | KGUC 151055Z AUTO 06004KT 10SM CLR M22/M24 A3038
RMK AO1 |
| 03:35 MST |
Clear | -21°C / -6°F | -25°C / -13°F | 70% | 1028 mb
(30.36 in) | Calm | - | 10SM |
| | KGUC 151035Z AUTO 00000KT 10SM CLR M21/M25 A3037
RMK AO1 |
| 03:15 MST |
Clear | -20°C / -4°F | -23°C / -9°F | 77% | 1028 mb
(30.36 in) | Calm | - | 10SM |
| | KGUC 151015Z AUTO 00000KT 10SM CLR M20/M23 A3037
RMK AO1 |
| 02:55 MST |
Clear | -21°C / -6°F | -23°C / -9°F | 84% | 1028 mb
(30.36 in) | Calm | - | 10SM |
| | KGUC 150955Z AUTO 00000KT 10SM CLR M21/M23 A3037
RMK AO1 |
| 02:35 MST |
Clear | -19°C / -2°F | -26°C / -15°F | 54% | 1028 mb
(30.36 in) | Calm | - | 10SM |
| | KGUC 150935Z AUTO 00000KT 10SM CLR M19/M26 A3037
RMK AO1 |
| 02:15 MST |
Clear | -19°C / -2°F | -22°C / -8°F | 77% | 1028 mb
(30.36 in) | Calm | - | 10SM |
| | KGUC 150915Z AUTO 00000KT 10SM CLR M19/M22 A3035
RMK AO1 |
| 01:55 MST |
Clear | -19°C / -2°F | -19°C / -2°F | 100% | 1027 mb
(30.33 in) | Calm | - | 10SM |
| | KGUC 150855Z AUTO 00000KT 10SM CLR M19/M19 A3034
RMK AO1 52020 |
| 01:35 MST |
Clear | -18°C / 0°F | -18°C / 0°F | 100% | 1027 mb
(30.33 in) | Calm | - | 9SM |
| | KGUC 150835Z AUTO 00000KT 9SM CLR M18/M18 A3034
RMK AO1 |
| 01:15 MST |
Clear | -18°C / 0°F | -24°C / -11°F | 60% | 1027 mb
(30.33 in) | NNW 6 kph
(NNW 3.5 mph) | - | 5SM |
| | KGUC 150815Z AUTO 34003KT 5SM CLR M18/M24 A3033
RMK AO1 |
| 00:55 MST |
Clear | -18°C / 0°F | -22°C / -8°F | 71% | 1027 mb
(30.33 in) | Calm | - | 10SM |
| | KGUC 150755Z AUTO 00000KT 10SM CLR M18/M22 A3032
RMK AO1 |
| 00:35 MST |
Clear | -18°C / 0°F | -20°C / -4°F | 84% | 1027 mb
(30.33 in) | Calm | - | 10SM |
| | KGUC 150735Z AUTO 00000KT 10SM CLR M18/M20 A3032
RMK AO1 |
| 00:15 MST |
Clear | -18°C / 0°F | N/A | N/A | 1026 mb
(30.3 in) | Calm | - | 10SM |
| | KGUC 150715Z AUTO 00000KT 10SM CLR M18/ A3030
RMK AO1 |
