| 18:54 PST |  Clear | -3°C / 27°F | -9°C / 16°F | 64% | 1013 mb (29.91 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KEUG 070254Z 32009KT 10SM CLR M03/M09 A2990 RMK AO2 SLP131 T10281094 53012 |
| 17:54 PST |  Clear | -3°C / 27°F | -8°C / 18°F | 69% | 1012 mb (29.88 in) | N 17 kph (N 10.4 mph) | - | 10SM |
| | KEUG 070154Z 36009KT 10SM CLR M03/M08 A2989 RMK AO2 SLP125 T10281083 |
| 16:54 PST |  Partly Cloudy | -1°C / 30°F | -8°C / 18°F | 59% | 1012 mb (29.88 in) | NNE 19 kph (NNE 11.5 mph) | - | 10SM |
| | KEUG 070054Z 02010KT 10SM FEW100 M01/M08 A2988 RMK AO2 SLP121 T10061083 |
| 15:54 PST |  Clear | 2°C / 36°F | -8°C / 18°F | 48% | 1012 mb (29.88 in) | N 26 kph (N 16.1 mph) | - | 10SM |
| | KEUG 062354Z 01014KT 10SM CLR 02/M08 A2987 RMK AO2 SLP118 T00171078 10028 20011 53005 |
| 14:54 PST |  Clear | 3°C / 37°F | -8°C / 18°F | 45% | 1011 mb (29.85 in) | N 28 kph (N 17.3 mph) | - | 10SM |
| | KEUG 062254Z 36015G23KT 10SM CLR 03/M08 A2985 RMK AO2 PK WND 01028/2159 SLP111 T00281078 |
| 13:54 PST |  Partly Cloudy | 3°C / 37°F | -8°C / 18°F | 45% | 1011 mb (29.85 in) | N 32 kph (N 19.6 mph) | - | 10SM |
| | KEUG 062154Z 01017G28KT 10SM FEW100 03/M08 A2985 RMK AO2 PK WND 36029/2139 SLP110 T00281083 |
| 12:54 PST |  Partly Cloudy | 3°C / 37°F | -8°C / 18°F | 45% | 1011 mb (29.85 in) | N 39 kph (N 24.2 mph) | - | 10SM |
| | KEUG 062054Z 01021G26KT 10SM FEW100 03/M08 A2985 RMK AO2 PK WND 36027/2031 SLP113 T00281083 58018 |
| 11:54 PST |  Partly Cloudy | 3°C / 37°F | -8°C / 18°F | 45% | 1012 mb (29.88 in) | N 41 kph (N 25.3 mph) | - | 10SM |
| | KEUG 061954Z 36022G26KT 10SM SCT100 03/M08 A2988 RMK AO2 PK WND 36026/1954 SLP121 T00281083 |
| 10:54 PST |  Partly Cloudy | 2°C / 36°F | -8°C / 18°F | 48% | 1012 mb (29.88 in) | N 30 kph (N 18.4 mph) | - | 10SM |
| | KEUG 061854Z 01016G23KT 10SM SCT095 02/M08 A2989 RMK AO2 SLP126 T00221078 |
| 09:54 PST |  Partly Cloudy | 1°C / 34°F | -7°C / 19°F | 56% | 1013 mb (29.91 in) | N 32 kph (N 19.6 mph) | - | 10SM |
| | KEUG 061754Z 01017KT 10SM SCT090 01/M07 A2991 RMK AO2 SLP131 T00111072 10011 21017 51005 |
| 08:54 PST |  Partly Cloudy | -1°C / 30°F | -7°C / 19°F | 64% | 1013 mb (29.91 in) | N 28 kph (N 17.3 mph) | - | 10SM |
| | KEUG 061654Z 01015KT 10SM FEW070 SCT095 M01/M07 A2991 RMK AO2 SLP131 T10061067 |
| 07:54 PST |  Partly Cloudy | -2°C / 28°F | -6°C / 21°F | 74% | 1013 mb (29.91 in) | N 24 kph (N 15 mph) | - | 10SM |
| | KEUG 061554Z 01013KT 10SM FEW080 SCT100 M02/M06 A2990 RMK AO2 SLP129 T10171061 |
| 06:54 PST |  Partly Cloudy | -2°C / 28°F | -6°C / 21°F | 74% | 1012 mb (29.88 in) | NNE 22 kph (NNE 13.8 mph) | - | 10SM |
| | KEUG 061454Z 02012KT 10SM FEW080 SCT100 M02/M06 A2989 RMK AO2 SLP126 T10171056 56007 |
| 05:54 PST |  Partly Cloudy | -2°C / 28°F | -5°C / 23°F | 80% | 1013 mb (29.91 in) | N 22 kph (N 13.8 mph) | - | 10SM |
| | KEUG 061354Z 01012KT 10SM FEW080 SCT110 M02/M05 A2990 RMK AO2 SLP127 T10171050 |
| 04:54 PST |  Mostly Cloudy | -1°C / 30°F | -4°C / 25°F | 80% | 1013 mb (29.91 in) | N 22 kph (N 13.8 mph) | - | 10SM |
| | KEUG 061254Z 36012KT 10SM FEW060 BKN075 BKN100 M01/M04 A2990 RMK AO2 SLP129 T10111039 |
| 03:54 PST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1013 mb (29.91 in) | N 24 kph (N 15 mph) | - | 9SM |
| | KEUG 061154Z 01013G20KT 9SM BKN055 BKN070 OVC100 M01/M03 A2991 RMK AO2 SLP133 T10061033 11006 21050 56012 |
| 02:54 PST |  Mostly Cloudy | -4°C / 25°F | -6°C / 21°F | 86% | 1014 mb (29.94 in) | Calm | - | 7SM |
| | KEUG 061054Z 00000KT 7SM BKN085 BKN110 M04/M06 A2993 RMK AO2 SLP137 T10441061 |
| 01:54 PST |  Mostly Cloudy Fog And Mist | -4°C / 25°F | -6°C / 21°F | 86% | 1014 mb (29.94 in) | Calm | - | 5SM |
| | KEUG 060954Z 00000KT 5SM BR FEW002 SCT085 BKN120 M04/M06 A2994 RMK AO2 SLP141 T10391056 |
| 00:54 PST |  Mostly Cloudy Fog And Mist | -3°C / 27°F | -6°C / 21°F | 80% | 1014 mb (29.94 in) | Calm | - | 5SM |
| | KEUG 060854Z 00000KT 5SM BR FEW002 SCT070 BKN110 M03/M06 A2995 RMK AO2 SLP145 T10331061 58023 |
| 00:21 PST |  Mostly Cloudy Fog And Mist | -3°C / 27°F | -6°C / 21°F | 80% | 1015 mb (29.97 in) | Calm | - | 3SM |
| | KEUG 060821Z 00000KT 3SM BR FEW001 SCT060 BKN110 M03/M06 A2996 RMK AO2 VIS E 1 S 3/4 BR FEW001 |
| 00:08 PST |  Mostly Cloudy Fog And Mist | -3°C / 27°F | -6°C / 21°F | 80% | 1015 mb (29.97 in) | Calm | - | 2SM |
| | KEUG 060808Z 00000KT 2SM BR FEW001 SCT060 BKN110 M03/M06 A2997 RMK AO2 VIS E-S 1 BR FEW001 |