| 12:50 PST |  Mostly Cloudy | 2°C / 36°F | -6°C / 21°F | 56% | 1031 mb (30.45 in) | NE 4 kph (NE 2.3 mph) | - | 15SM |
| | KHMS 232050Z 03002KT 15SM BKN250 02/M06 A3044 RMK SLP319 8/001 T00211065 51003 RSNK M03/24005 |
| 11:50 PST |  Overcast | 2°C / 36°F | -6°C / 21°F | 56% | 1031 mb (30.45 in) | N 6 kph (N 3.5 mph) | - | 15SM |
| | KHMS 231950Z 01003KT 15SM OVC250 02/M06 A3044 RMK SLP318 T00231061 RSNK M03/20004 |
| 10:50 PST |  Mostly Cloudy | 2°C / 36°F | -6°C / 21°F | 56% | 1031 mb (30.45 in) | NW 7 kph (NW 4.6 mph) | - | 15SM |
| | KHMS 231850Z 31004KT 15SM FEW130 BKN250 02/M06 A3044 RMK SLP318 T00161058 RSNK M03/04004 |
| 09:50 PST |  Mostly Cloudy | -1°C / 30°F | -4°C / 25°F | 80% | 1030 mb (30.42 in) | NW 7 kph (NW 4.6 mph) | - | 15SM |
| | KHMS 231750Z 32004KT 15SM BKN250 M01/M04 A3043 RMK SLP316 8/001 T10071043 11004 21066 52014 RSNK M04/02005 |
| 08:50 PST |  Partly Cloudy | -1°C / 30°F | -4°C / 25°F | 80% | 1030 mb (30.42 in) | NW 15 kph (NW 9.2 mph) | - | 15SM |
| | KHMS 231650Z 30008KT 15SM SCT250 M01/M04 A3041 RMK SLP311 T10141042 RSNK M4.5/02007KT |
| 07:50 PST |  Clear | -4°C / 25°F | -5°C / 23°F | 93% | 1029 mb (30.39 in) | SSW 11 kph (SSW 6.9 mph) | - | 15SM |
| | KHMS 231550Z 26006KT 15SM SKC M04/M05 A3040 RMK SLP308 T10361053 RSNK M5.4/02009KT |
| 06:50 PST |  Clear | -5°C / 23°F | -6°C / 21°F | 93% | 1029 mb (30.39 in) | SSW 7 kph (SSW 4.6 mph) | - | 15SM |
| | KHMS 231450Z 25004KT 15SM SKC M05/M06 A3039 RMK SLP304 T10541062 52025 RNSK M5.5/01010KT |
| 05:50 PST |  Partly Cloudy | -6°C / 21°F | -7°C / 19°F | 93% | 1028 mb (30.36 in) | NW 4 kph (NW 2.3 mph) | - | 15SM |
| | KHMS 231350Z 32002KT 15SM FEW120 M06/M07 A3036 RMK SLP293 T10631069 RSNK M5.5/36010KT |
| 04:50 PST |  Partly Cloudy | -6°C / 21°F | -7°C / 19°F | 93% | 1027 mb (30.33 in) | N 4 kph (N 2.3 mph) | - | 15SM |
| | KHMS 231250Z 36002KT 15SM FEW120 M06/M07 A3034 RMK SLP286 T10631072 RSNK M4.6/34011KT |
| 03:50 PST |  Mostly Cloudy | -4°C / 25°F | -5°C / 23°F | 93% | 1026 mb (30.3 in) | ENE 7 kph (ENE 4.6 mph) | - | 15SM |
| | KHMS 231150Z 06004KT 15SM BKN120 M04/M05 A3031 RMK SLP275 8/070 T10401052 11006 21056 52008 RSNK M4.0/34015KT |
| 02:50 PST |  Mostly Cloudy | -4°C / 25°F | -5°C / 23°F | 93% | 1026 mb (30.3 in) | S 6 kph (S 3.5 mph) | - | 15SM |
| | KHMS 231050Z 18003KT 15SM BKN120 M04/M05 A3031 RMK SLP275 T10441055 RSNK M3.6/35007KT |
| 01:50 PST |  Clear | -2°C / 28°F | -5°C / 23°F | 80% | 1026 mb (30.3 in) | N 7 kph (N 4.6 mph) | - | 15SM |
| | KHMS 230950Z 35004KT 15SM SKC M02/M05 A3030 RMK SLP269 T10231047 RSNK M2.8/33007KT |
| 00:50 PST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1026 mb (30.3 in) | NW 9 kph (NW 5.8 mph) | - | 15SM |
| | KHMS 230850Z 32005KT 15SM SKC M02/M04 A3029 RMK SLP266 T10201045 52022 RSNK M3.0/25005KT |