| 14:55 MST |  Partly Cloudy | -18°C / 0°F | -25°C / -13°F | 54% | 1015 mb (29.97 in) | Calm | - | 10SM |
| | KGDV 152155Z AUTO 00000KT 10SM FEW095 M18/M25 A2998 RMK AO1 |
| 14:35 MST |  Partly Cloudy | -18°C / 0°F | -24°C / -11°F | 60% | 1016 mb (30 in) | Calm | - | 10SM |
| | KGDV 152135Z AUTO 00000KT 10SM SCT095 M18/M24 A2999 RMK AO1 |
| 14:15 MST |  Clear | -18°C / 0°F | -25°C / -13°F | 54% | 1015 mb (29.97 in) | Calm | - | 10SM |
| | KGDV 152115Z AUTO 00000KT 10SM CLR M18/M25 A2998 RMK AO1 |
| 13:55 MST |  Clear | -19°C / -2°F | -29°C / -20°F | 41% | 1016 mb (30 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KGDV 152055Z AUTO 23003KT 10SM CLR M19/M29 A3000 RMK AO1 57037 |
| 13:35 MST |  Clear | -19°C / -2°F | N/A | N/A | 1016 mb (30 in) | Calm | - | 10SM |
| | KGDV 152035Z AUTO 00000KT 10SM CLR M19/ A3000 RMK AO1 |
| 13:15 MST |  Clear | -21°C / -6°F | -26°C / -15°F | 64% | 1016 mb (30 in) | Calm | - | 10SM |
| | KGDV 152015Z AUTO 00000KT 10SM CLR M21/M26 A3001 RMK AO1 |
| 12:55 MST |  Clear | -22°C / -8°F | -28°C / -18°F | 58% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KGDV 151955Z AUTO 00000KT 10SM CLR M22/M28 A3002 RMK AO1 |
| 12:35 MST |  Clear | -22°C / -8°F | -28°C / -18°F | 58% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KGDV 151935Z AUTO 00000KT 10SM CLR M22/M28 A3003 RMK AO1 |
| 12:15 MST |  Clear | -23°C / -9°F | -27°C / -17°F | 70% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KGDV 151915Z AUTO 00000KT 10SM CLR M23/M27 A3004 RMK AO1 |
| 11:55 MST |  Clear | -23°C / -9°F | -29°C / -20°F | 58% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KGDV 151855Z AUTO 00000KT 10SM CLR M23/M29 A3006 RMK AO1 |
| 11:35 MST |  Clear | -23°C / -9°F | -28°C / -18°F | 64% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KGDV 151835Z AUTO 00000KT 10SM CLR M23/M28 A3008 RMK AO1 |
| 11:15 MST |  Clear | -24°C / -11°F | -30°C / -22°F | 58% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KGDV 151815Z AUTO 00000KT 10SM CLR M24/M30 A3009 RMK AO1 |
| 10:55 MST |  Clear | -24°C / -11°F | -30°C / -22°F | 58% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KGDV 151755Z AUTO 00000KT 10SM CLR M24/M30 A3011 RMK AO1 11240 21340 57027 |
| 10:35 MST |  Clear | -25°C / -13°F | -32°C / -26°F | 52% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KGDV 151735Z AUTO 00000KT 10SM CLR M25/M32 A3011 RMK AO1 |
| 10:15 MST |  Clear | -26°C / -15°F | -34°C / -29°F | 47% | 1020 mb (30.12 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KGDV 151715Z AUTO 36003KT 10SM CLR M26/M34 A3012 RMK AO1 |
| 09:55 MST |  Clear | -27°C / -17°F | N/A | N/A | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KGDV 151655Z AUTO 00000KT 10SM CLR M27/ A3013 RMK AO1 |
| 09:35 MST |  Clear | -27°C / -17°F | N/A | N/A | 1021 mb (30.15 in) | NNE 6 kph (NNE 3.5 mph) | - | 10SM |
| | KGDV 151635Z AUTO 02003KT 10SM CLR M27/ A3014 RMK AO1 |
| 09:15 MST |  Clear | -27°C / -17°F | N/A | N/A | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KGDV 151615Z AUTO 00000KT 10SM CLR M27/ A3015 RMK AO1 |
| 08:55 MST |  Clear | -27°C / -17°F | N/A | N/A | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KGDV 151555Z AUTO 00000KT 10SM CLR M27/ A3016 RMK AO1 |
| 08:35 MST |  Clear | -29°C / -20°F | -34°C / -29°F | 62% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KGDV 151535Z AUTO 00000KT 10SM CLR M29/M34 A3017 RMK AO1 |
| 08:15 MST |  Clear | -31°C / -24°F | -33°C / -27°F | 82% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KGDV 151515Z AUTO 00000KT 10SM CLR M31/M33 A3019 RMK AO1 |
| 07:55 MST |  Clear | -31°C / -24°F | N/A | N/A | 1022 mb (30.18 in) | W 9 kph (W 5.8 mph) | - | 10SM |
| | KGDV 151455Z AUTO 27005KT 10SM CLR M31/ A3019 RMK AO1 57017 |
| 07:35 MST |  Clear | -32°C / -26°F | N/A | N/A | 1022 mb (30.18 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KGDV 151435Z AUTO 26004KT 10SM CLR M32/ A3019 RMK AO1 |
| 07:15 MST |  Clear | -32°C / -26°F | N/A | N/A | 1022 mb (30.18 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KGDV 151415Z AUTO 25004KT 10SM CLR M32/ A3019 RMK AO1 |
| 06:55 MST |  Clear | -32°C / -26°F | N/A | N/A | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KGDV 151355Z AUTO 00000KT 10SM CLR M32/ A3020 RMK AO1 |
| 06:35 MST |  Clear | -33°C / -27°F | N/A | N/A | 1023 mb (30.21 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KGDV 151335Z AUTO 20005KT 10SM CLR M33/ A3021 RMK AO1 |
| 06:15 MST |  Clear | -32°C / -26°F | N/A | N/A | 1023 mb (30.21 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KGDV 151315Z AUTO 16003KT 10SM CLR M32/ A3020 RMK AO1 |
| 05:55 MST |  Clear | -33°C / -27°F | N/A | N/A | 1023 mb (30.21 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KGDV 151255Z AUTO 20005KT 10SM CLR M33/ A3022 RMK AO1 |
| 05:35 MST |  Clear | -32°C / -26°F | N/A | N/A | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KGDV 151235Z AUTO 00000KT 10SM CLR M32/ A3022 RMK AO1 |
| 05:15 MST |  Clear | -32°C / -26°F | N/A | N/A | 1024 mb (30.24 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KGDV 151215Z AUTO 18003KT 10SM CLR M32/ A3023 RMK AO1 |
| 04:55 MST |  Clear | -34°C / -29°F | N/A | N/A | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KGDV 151155Z AUTO 00000KT 10SM CLR M34/ A3024 RMK AO1 11290 21370 57014 |
| 04:35 MST |  Clear | -32°C / -26°F | N/A | N/A | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KGDV 151135Z AUTO 00000KT 10SM CLR M32/ A3023 RMK AO1 |
| 04:15 MST |  Clear | -33°C / -27°F | N/A | N/A | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KGDV 151115Z AUTO 00000KT 10SM CLR M33/ A3024 RMK AO1 |
| 03:55 MST |  Clear | -33°C / -27°F | N/A | N/A | 1025 mb (30.27 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KGDV 151055Z AUTO 18003KT 10SM CLR M33/ A3026 RMK AO1 |
| 03:35 MST |  Clear | -32°C / -26°F | N/A | N/A | 1025 mb (30.27 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KGDV 151035Z AUTO 18004KT 10SM CLR M32/ A3026 RMK AO1 |
| 03:15 MST |  Clear | -33°C / -27°F | N/A | N/A | 1025 mb (30.27 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KGDV 151015Z AUTO 21005KT 10SM CLR M33/ A3027 RMK AO1 |
| 02:55 MST |  Clear | -32°C / -26°F | N/A | N/A | 1025 mb (30.27 in) | SSE 13 kph (SSE 8.1 mph) | - | 10SM |
| | KGDV 150955Z AUTO 20007KT 10SM CLR M32/ A3027 RMK AO1 |
| 02:35 MST |  Clear | -32°C / -26°F | N/A | N/A | 1025 mb (30.27 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KGDV 150935Z AUTO 19006KT 10SM CLR M32/ A3028 RMK AO1 |
| 02:15 MST |  Clear | -36°C / -33°F | N/A | N/A | 1025 mb (30.27 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KGDV 150915Z AUTO 21006KT 10SM CLR M36/ A3028 RMK AO1 |
| 01:55 MST |  Clear | -36°C / -33°F | N/A | N/A | 1025 mb (30.27 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KGDV 150855Z AUTO 22006KT 10SM CLR M36/ A3028 RMK AO1 57007 |
| 01:35 MST |  Clear | -33°C / -27°F | N/A | N/A | 1025 mb (30.27 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KGDV 150835Z AUTO 17004KT 10SM CLR M33/ A3028 RMK AO1 |
| 01:15 MST |  Clear | -32°C / -26°F | N/A | N/A | 1026 mb (30.3 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KGDV 150815Z AUTO 16004KT 10SM CLR M32/ A3029 RMK AO1 |
| 00:55 MST |  Clear | -33°C / -27°F | N/A | N/A | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KGDV 150755Z AUTO 00000KT 10SM CLR M33/ A3028 RMK AO1 |
| 00:35 MST |  Clear | -32°C / -26°F | N/A | N/A | 1026 mb (30.3 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KGDV 150735Z AUTO 18004KT 10SM CLR M32/ A3029 RMK AO1 |
| 00:15 MST |  Clear | -31°C / -24°F | N/A | N/A | 1026 mb (30.3 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KGDV 150715Z AUTO 19006KT 10SM CLR M31/ A3030 RMK AO1 |