| 11:56 PST |  Clear | 6°C / 43°F | -3°C / 27°F | 53% | 1015 mb (29.97 in) | NNW 13 kph (NNW 8.1 mph) | - | 10SM |
| | KSLE 261956Z 34007G18KT 10SM CLR 06/M03 A2998 RMK AO2 SLP155 T00611033 |
| 10:56 PST |  Clear | 4°C / 39°F | -3°C / 27°F | 61% | 1016 mb (30 in) | NNW 13 kph (NNW 8.1 mph) | - | 10SM |
| | KSLE 261856Z 34007KT 10SM CLR 04/M03 A3000 RMK AO2 SLP161 T00441028 |
| 09:56 PST |  Clear | 1°C / 34°F | -3°C / 27°F | 75% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KSLE 261756Z 00000KT 10SM CLR 01/M03 A3002 RMK AO2 SLP167 T00111028 10011 21056 53000 |
| 08:56 PST |  Clear | -3°C / 27°F | -4°C / 25°F | 93% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KSLE 261656Z 00000KT 10SM CLR M03/M04 A3002 RMK AO2 SLP166 T10281044 |
| 07:56 PST |  Clear | -4°C / 25°F | -6°C / 21°F | 86% | 1016 mb (30 in) | Calm | - | 10SM |
| | KSLE 261556Z 00000KT 10SM CLR M04/M06 A3001 RMK AO2 SLP166 T10441056 |
| 06:56 PST |  Clear | -4°C / 25°F | -7°C / 19°F | 80% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KSLE 261456Z 00000KT 10SM CLR M04/M07 A3002 RMK AO2 SLP168 T10441067 56007 |
| 05:56 PST |  Clear | -6°C / 21°F | -7°C / 19°F | 93% | 1017 mb (30.03 in) | SE 7 kph (SE 4.6 mph) | - | 7SM |
| | KSLE 261356Z AUTO 14004KT 7SM CLR M06/M07 A3002 RMK AO2 SLP167 T10561067 |
| 04:56 PST |  Clear | -5°C / 23°F | -6°C / 21°F | 93% | 1017 mb (30.03 in) | SE 6 kph (SE 3.5 mph) | - | 10SM |
| | KSLE 261256Z AUTO 14003KT 10SM CLR M05/M06 A3003 RMK AO2 SLP170 T10501061 |
| 03:56 PST |  Clear | -4°C / 25°F | -6°C / 21°F | 86% | 1017 mb (30.03 in) | SE 11 kph (SE 6.9 mph) | - | 8SM |
| | KSLE 261156Z AUTO 14006KT 8SM CLR M04/M06 A3004 RMK AO2 SLP173 T10441061 11011 21050 56002 |
| 02:56 PST |  Clear | -4°C / 25°F | -6°C / 21°F | 86% | 1017 mb (30.03 in) | SSE 6 kph (SSE 3.5 mph) | - | 9SM |
| | KSLE 261056Z AUTO 16003KT 9SM CLR M04/M06 A3004 RMK AO2 SLP174 T10441056 |
| 01:56 PST |  Clear | -4°C / 25°F | -6°C / 21°F | 86% | 1017 mb (30.03 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KSLE 260956Z AUTO 15003KT 10SM CLR M04/M06 A3004 RMK AO2 SLP175 T10391056 |
| 00:56 PST |  Clear | -3°C / 27°F | -5°C / 23°F | 86% | 1018 mb (30.06 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KSLE 260856Z AUTO 17004KT 10SM CLR M03/M05 A3005 RMK AO2 SLP176 T10331050 58008 |