| 07:56 PST |  Overcast | -4°C / 25°F | -6°C / 21°F | 86% | 1022 mb (30.18 in) | NW 7 kph (NW 4.6 mph) | - | 10SM |
| | KRDM 051556Z 31004KT 10SM SCT030 OVC050 M04/M06 A3019 RMK AO2 SLP250 T10441056 |
| 06:56 PST |  Overcast | -5°C / 23°F | -6°C / 21°F | 93% | 1022 mb (30.18 in) | NW 11 kph (NW 6.9 mph) | - | 10SM |
| | KRDM 051456Z 31006KT 10SM OVC055 M05/M06 A3018 RMK AO2 SLP247 T10501061 51003 |
| 05:56 PST |  Mostly Cloudy | -7°C / 19°F | -8°C / 18°F | 93% | 1022 mb (30.18 in) | WNW 6 kph (WNW 3.5 mph) | - | 10SM |
| | KRDM 051356Z 29003KT 10SM BKN055 M07/M08 A3017 RMK AO2 SLP248 T10721083 |
| 04:56 PST |  Mostly Cloudy | -8°C / 18°F | -9°C / 16°F | 93% | 1022 mb (30.18 in) | Calm | - | 9SM |
| | KRDM 051256Z AUTO 00000KT 9SM FEW046 BKN060 M08/M09 A3017 RMK AO2 SLP244 T10781094 |
| 03:56 PST |  Partly Cloudy | -8°C / 18°F | -9°C / 16°F | 93% | 1022 mb (30.18 in) | NW 7 kph (NW 4.6 mph) | - | 10SM |
| | KRDM 051156Z AUTO 30004KT 10SM FEW047 M08/M09 A3017 RMK AO2 SLP238 60000 T10781089 11006 21083 51012 |
| 02:56 PST |  Clear | -6°C / 21°F | -7°C / 19°F | 93% | 1021 mb (30.15 in) | NNW 9 kph (NNW 5.8 mph) | - | 10SM |
| | KRDM 051056Z AUTO 34005KT 10SM CLR M06/M07 A3016 RMK AO2 SLP230 T10561067 |
| 01:56 PST |  Clear | -4°C / 25°F | -7°C / 19°F | 80% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KRDM 050956Z AUTO 00000KT 10SM CLR M04/M07 A3014 RMK AO2 SLP220 T10391067 |
| 01:17 PST |  Mostly Cloudy | -4°C / 25°F | -6°C / 21°F | 86% | 1020 mb (30.12 in) | NW 11 kph (NW 6.9 mph) | - | 10SM |
| | KRDM 050917Z AUTO 31006KT 10SM BKN030 BKN037 M04/M06 A3013 RMK AO2 |
| 00:56 PST |  Mostly Cloudy | -3°C / 27°F | -6°C / 21°F | 80% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KRDM 050856Z AUTO 00000KT 10SM BKN028 M03/M06 A3013 RMK AO2 SLP212 60000 T10281056 51009 |
| 00:53 PST |  Mostly Cloudy | -3°C / 27°F | -6°C / 21°F | 80% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KRDM 050853Z AUTO 00000KT 10SM BKN028 BKN037 M03/M06 A3013 RMK AO2 |