| 16:51 MST |  Partly Cloudy | 17°C / 63°F | -18°C / 0°F | 8% | 1020 mb (30.12 in) | NNW 9 kph (NNW 5.8 mph) | - | 10SM |
| | KNYL 042351Z 33005KT 10SM FEW200 17/M18 A3013 RMK AO2 SLP201 T01671183 10178 20144 56021 |
| 15:51 MST |  Partly Cloudy | 17°C / 63°F | -19°C / -2°F | 7% | 1021 mb (30.15 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KNYL 042251Z 01003KT 10SM FEW200 17/M19 A3014 RMK AO2 SLP205 T01721189 |
| 14:51 MST |  Clear | N/A | N/A | N/A | 1021 mb (30.15 in) | N 15 kph (N 9.2 mph) | - | 10SM |
| | KNYL 042151Z 36008KT 10SM CLR `8/M18 A3016 RMK AO2 SLP212 T01781178 |
| 13:51 MST |  Clear | 17°C / 63°F | -17°C / 1°F | 8% | 1022 mb (30.18 in) | Variable 7 kph (Variable 4.6 mph) | - | 10SM |
| | KNYL 042051Z VRB04KT 10SM CLR 17/M17 A3019 RMK AO2 SLP222 T01721167 56027 |
| 12:51 MST |  Clear | 16°C / 61°F | -17°C / 1°F | 9% | 1023 mb (30.21 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KNYL 041951Z 01006KT 10SM CLR 16/M17 A3022 RMK AO2 SLP231 T01611172 |
| 11:51 MST |  Clear | 16°C / 61°F | -17°C / 1°F | 9% | 1024 mb (30.24 in) | NE 15 kph (NE 9.2 mph) | - | 10SM |
| | KNYL 041851Z 04008KT 10SM CLR 16/M17 A3024 RMK AO2 SLP240 T01561172 |
| 10:51 MST |  Clear | 14°C / 57°F | -16°C / 3°F | 11% | 1025 mb (30.27 in) | N 15 kph (N 9.2 mph) | - | 10SM |
| | KNYL 041751Z 01008KT 10SM CLR 14/M16 A3027 RMK AO2 SLP249 T01441156 10144 20056 51016 |
| 09:51 MST |  Clear | 13°C / 55°F | -15°C / 5°F | 13% | 1025 mb (30.27 in) | N 13 kph (N 8.1 mph) | - | 10SM |
| | KNYL 041651Z 01007KT 10SM CLR 13/M15 A3027 RMK AO2 SLP248 T01281150 |
| 08:51 MST |  Clear | 10°C / 50°F | -14°C / 7°F | 17% | 1024 mb (30.24 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KNYL 041551Z AUTO 35004KT 10SM CLR 10/M14 A3025 RMK AO2 SLP242 T01001139 |
| 07:51 MST |  Clear | 6°C / 43°F | -13°C / 9°F | 24% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KNYL 041451Z AUTO 00000KT 10SM CLR 06/M13 A3022 RMK AO2 SLP233 T00611128 53013 |
| 06:51 MST |  Clear | 8°C / 46°F | -13°C / 9°F | 21% | 1023 mb (30.21 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KNYL 041351Z AUTO 35006KT 10SM CLR 08/M13 A3021 RMK AO2 SLP229 T00781128 |
| 05:51 MST |  Clear | 9°C / 48°F | -14°C / 7°F | 18% | 1022 mb (30.18 in) | NW 7 kph (NW 4.6 mph) | - | 10SM |
| | KNYL 041251Z AUTO 30004KT 10SM CLR 09/M14 A3019 RMK AO2 SLP224 T00891144 |
| 04:51 MST |  Clear | 11°C / 52°F | -15°C / 5°F | 15% | 1022 mb (30.18 in) | N 17 kph (N 10.4 mph) | - | 10SM |
| | KNYL 041151Z AUTO 35009KT 10SM CLR 11/M15 A3018 RMK AO2 SLP220 T01111150 10144 20100 51016 |
| 03:51 MST |  Clear | 11°C / 52°F | -15°C / 5°F | 15% | 1022 mb (30.18 in) | NNW 9 kph (NNW 5.8 mph) | - | 10SM |
| | KNYL 041051Z AUTO 33005KT 10SM CLR 11/M15 A3017 RMK AO2 SLP214 T01111150 |
| 02:51 MST |  Clear | 13°C / 55°F | -16°C / 3°F | 12% | 1021 mb (30.15 in) | N 20 kph (N 12.7 mph) | - | 10SM |
| | KNYL 040951Z AUTO 36011KT 10SM CLR 13/M16 A3016 RMK AO2 SLP214 T01281156 |
| 01:51 MST |  Clear | 11°C / 52°F | -14°C / 7°F | 16% | 1021 mb (30.15 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KNYL 040851Z 31007KT 10SM CLR 11/M14 A3014 RMK AO2 SLP204 T01111144 51010 |
| 00:51 MST |  Clear | 13°C / 55°F | -15°C / 5°F | 13% | 1020 mb (30.12 in) | N 20 kph (N 12.7 mph) | - | 10SM |
| | KNYL 040751Z 35011KT 10SM CLR 13/M15 A3013 RMK AO2 SLP203 T01281150 |