| 15:30 PST |  Clear | -3°C / 27°F | -6°C / 21°F | 80% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KMMH 152330Z AUTO 00000KT 10SM CLR M03/M06 A3026 RMK AO1 |
| 15:10 PST |  Clear | -3°C / 27°F | -6°C / 21°F | 80% | 1025 mb (30.27 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KMMH 152310Z AUTO 36003KT 10SM CLR M03/M06 A3026 RMK AO1 |
| 14:50 PST |  Clear | -4°C / 25°F | -7°C / 19°F | 80% | 1025 mb (30.27 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KMMH 152250Z AUTO 19004KT 10SM CLR M04/M07 A3026 RMK AO1 |
| 14:30 PST |  Clear | -3°C / 27°F | -6°C / 21°F | 80% | 1025 mb (30.27 in) | SE 6 kph (SE 3.5 mph) | - | 10SM |
| | KMMH 152230Z AUTO 12003KT 10SM CLR M03/M06 A3026 RMK AO1 |
| 14:10 PST |  Partly Cloudy | -1°C / 30°F | -5°C / 23°F | 75% | 1024 mb (30.24 in) | ESE 15 kph (ESE 9.2 mph) | - | 10SM |
| | KMMH 152210Z AUTO 11008KT 10SM SCT065 SCT085 SCT120 M01/M05 A3025 RMK AO1 |
| 13:50 PST |  Partly Cloudy | -1°C / 30°F | -6°C / 21°F | 69% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KMMH 152150Z AUTO 00000KT 10SM SCT065 SCT085 SCT120 M01/M06 A3025 RMK AO1 |
| 13:30 PST |  Clear | -1°C / 30°F | -6°C / 21°F | 69% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KMMH 152130Z AUTO 00000KT 10SM CLR M01/M06 A3025 RMK AO1 |
| 13:10 PST |  Clear | -3°C / 27°F | -7°C / 19°F | 74% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KMMH 152110Z AUTO 00000KT 10SM CLR M03/M07 A3025 RMK AO1 |
| 12:50 PST |  Clear | -3°C / 27°F | -7°C / 19°F | 74% | 1024 mb (30.24 in) | SSE 13 kph (SSE 8.1 mph) | - | 10SM |
| | KMMH 152050Z AUTO 16007KT 10SM CLR M03/M07 A3025 RMK AO1 |
| 12:30 PST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KMMH 152030Z AUTO 00000KT 10SM CLR M04/M08 A3026 RMK AO1 |
| 12:10 PST |  Clear | -6°C / 21°F | -10°C / 14°F | 74% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KMMH 152010Z AUTO 00000KT 10SM CLR M06/M10 A3027 RMK AO1 |
| 11:50 PST |  Partly Cloudy | -7°C / 19°F | -10°C / 14°F | 79% | 1025 mb (30.27 in) | SE 19 kph (SE 11.5 mph) | - | 10SM |
| | KMMH 151950Z AUTO 13010KT 10SM SCT060 M07/M10 A3027 RMK AO1 |
| 11:30 PST |  Mostly Cloudy | -6°C / 21°F | -9°C / 16°F | 80% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KMMH 151930Z AUTO 00000KT 10SM BKN060 M06/M09 A3028 RMK AO1 |
| 11:10 PST |  Partly Cloudy | -7°C / 19°F | -10°C / 14°F | 79% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KMMH 151910Z AUTO 00000KT 10SM SCT060 M07/M10 A3029 RMK AO1 |
| 10:50 PST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KMMH 151850Z AUTO 00000KT 10SM CLR M08/M11 A3030 RMK AO1 |
| 10:30 PST |  Clear | -10°C / 14°F | -13°C / 9°F | 79% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KMMH 151830Z AUTO 00000KT 10SM CLR M10/M13 A3030 RMK AO1 |
| 10:10 PST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KMMH 151810Z AUTO 00000KT 10SM CLR M08/M11 A3031 RMK AO1 |
| 09:50 PST |  Clear | -9°C / 16°F | -12°C / 10°F | 79% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KMMH 151750Z AUTO 00000KT 10SM CLR M09/M12 A3031 RMK AO1 |
| 09:30 PST |  Partly Cloudy | -11°C / 12°F | -13°C / 9°F | 85% | 1026 mb (30.3 in) | W 6 kph (W 3.5 mph) | - | 10SM |
| | KMMH 151730Z AUTO 27003KT 10SM SCT070 M11/M13 A3031 RMK AO1 |
| 09:10 PST |  Partly Cloudy | -13°C / 9°F | -15°C / 5°F | 85% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KMMH 151710Z AUTO 00000KT 10SM SCT070 M13/M15 A3029 RMK AO1 |
| 08:50 PST |  Clear | -14°C / 7°F | -16°C / 3°F | 85% | 1026 mb (30.3 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KMMH 151650Z AUTO 15006KT 10SM CLR M14/M16 A3029 RMK AO1 |
| 08:30 PST |  Partly Cloudy | -13°C / 9°F | -15°C / 5°F | 85% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KMMH 151630Z AUTO 00000KT 10SM SCT085 M13/M15 A3029 RMK AO1 |
| 08:10 PST |  Mostly Cloudy | -14°C / 7°F | -15°C / 5°F | 92% | 1025 mb (30.27 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KMMH 151610Z AUTO 32003KT 10SM BKN095 M14/M15 A3028 RMK AO1 |
| 07:50 PST |  Partly Cloudy | -17°C / 1°F | -18°C / 0°F | 92% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KMMH 151550Z AUTO 00000KT 10SM SCT095 M17/M18 A3028 RMK AO1 |
| 07:30 PST |  Clear | -15°C / 5°F | -18°C / 0°F | 78% | 1025 mb (30.27 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KMMH 151530Z AUTO 30003KT 10SM CLR M15/M18 A3027 RMK AO1 |
| 07:10 PST |  Clear | -17°C / 1°F | -18°C / 0°F | 92% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KMMH 151510Z AUTO 00000KT 10SM CLR M17/M18 A3026 RMK AO1 |
| 06:50 PST |  Clear | -16°C / 3°F | -17°C / 1°F | 92% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KMMH 151450Z AUTO 00000KT 10SM CLR M16/M17 A3025 RMK AO1 |
| 06:30 PST |  Clear | -16°C / 3°F | -18°C / 0°F | 85% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KMMH 151430Z AUTO 00000KT 10SM CLR M16/M18 A3026 RMK AO1 |
| 06:10 PST |  Clear | -13°C / 9°F | -15°C / 5°F | 85% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KMMH 151410Z AUTO 00000KT 10SM CLR M13/M15 A3026 RMK AO1 |
| 05:50 PST |  Clear | -15°C / 5°F | -17°C / 1°F | 85% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KMMH 151350Z AUTO 00000KT 10SM CLR M15/M17 A3025 RMK AO1 |
| 05:30 PST |  Clear | -15°C / 5°F | -17°C / 1°F | 85% | 1024 mb (30.24 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KMMH 151330Z AUTO 36003KT 10SM CLR M15/M17 A3024 RMK AO1 |
| 05:10 PST |  Clear | -14°C / 7°F | -15°C / 5°F | 92% | 1024 mb (30.24 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KMMH 151310Z AUTO 17005KT 10SM CLR M14/M15 A3024 RMK AO1 |
| 04:50 PST |  Clear | -16°C / 3°F | -17°C / 1°F | 92% | 1024 mb (30.24 in) | N 9 kph (N 5.8 mph) | - | 10SM |
| | KMMH 151250Z AUTO 36005KT 10SM CLR M16/M17 A3024 RMK AO1 |
| 04:30 PST |  Clear | -16°C / 3°F | -17°C / 1°F | 92% | 1024 mb (30.24 in) | Calm | - | 7SM |
| | KMMH 151230Z AUTO 00000KT 7SM CLR M16/M17 A3024 RMK AO1 |
| 04:10 PST |  Clear | -16°C / 3°F | -17°C / 1°F | 92% | 1024 mb (30.24 in) | SE 6 kph (SE 3.5 mph) | - | 10SM |
| | KMMH 151210Z AUTO 13003KT 10SM CLR M16/M17 A3023 RMK AO1 |
| 03:50 PST |  Clear | -14°C / 7°F | -16°C / 3°F | 85% | 1024 mb (30.24 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KMMH 151150Z AUTO 15003KT 10SM CLR M14/M16 A3023 RMK AO1 |
| 03:30 PST |  Clear | -16°C / 3°F | -17°C / 1°F | 92% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KMMH 151130Z AUTO 00000KT 10SM CLR M16/M17 A3024 RMK AO1 |
| 03:10 PST |  Clear | -17°C / 1°F | -18°C / 0°F | 92% | 1024 mb (30.24 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KMMH 151110Z AUTO 35003KT 10SM CLR M17/M18 A3023 RMK AO1 |
| 02:50 PST |  Clear | -18°C / 0°F | -20°C / -4°F | 84% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KMMH 151050Z AUTO 00000KT 10SM CLR M18/M20 A3023 RMK AO1 |
| 02:30 PST |  Clear | -18°C / 0°F | -19°C / -2°F | 92% | 1024 mb (30.24 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KMMH 151030Z AUTO 31003KT 10SM CLR M18/M19 A3024 RMK AO1 |
| 02:10 PST |  Clear | -17°C / 1°F | -19°C / -2°F | 85% | 1024 mb (30.24 in) | NNW 7 kph (NNW 4.6 mph) | - | 10SM |
| | KMMH 151010Z AUTO 33004KT 10SM CLR M17/M19 A3023 RMK AO1 |
| 01:50 PST |  Clear | -19°C / -2°F | -20°C / -4°F | 92% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KMMH 150950Z AUTO 00000KT 10SM CLR M19/M20 A3023 RMK AO1 |
| 01:30 PST |  Clear | -15°C / 5°F | -16°C / 3°F | 92% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KMMH 150930Z AUTO 00000KT 10SM CLR M15/M16 A3023 RMK AO1 |
| 01:10 PST |  Clear | -14°C / 7°F | -16°C / 3°F | 85% | 1023 mb (30.21 in) | NNW 6 kph (NNW 3.5 mph) | - | 10SM |
| | KMMH 150910Z AUTO 33003KT 10SM CLR M14/M16 A3021 RMK AO1 |
| 00:50 PST |  Clear | -14°C / 7°F | -16°C / 3°F | 85% | 1023 mb (30.21 in) | NNW 6 kph (NNW 3.5 mph) | - | 10SM |
| | KMMH 150850Z AUTO 34003KT 10SM CLR M14/M16 A3022 RMK AO1 |
| 00:30 PST |  Clear | -15°C / 5°F | -17°C / 1°F | 85% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KMMH 150830Z AUTO 00000KT 10SM CLR M15/M17 A3021 RMK AO1 |
| 00:10 PST |  Clear | -16°C / 3°F | -18°C / 0°F | 85% | 1023 mb (30.21 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KMMH 150810Z AUTO 36003KT 10SM CLR M16/M18 A3021 RMK AO1 |