| 05:56 PST |  Partly Cloudy | -4°C / 25°F | -8°C / 18°F | 74% | 1022 mb (30.18 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KSMP 051356Z AUTO 23003KT 10SM FEW055 M04/M08 A3017 RMK AO2 SLP253 T10441083 TSNO $ |
| 04:56 PST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1022 mb (30.18 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KSMP 051256Z AUTO 24003KT 10SM CLR M04/M08 A3017 RMK AO2 SLP252 T10441083 TSNO $ |
| 03:56 PST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1021 mb (30.15 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KSMP 051156Z AUTO 23003KT 10SM CLR M04/M08 A3016 RMK AO2 SLP249 T10441083 11028 21044 53005 TSNO $ |
| 02:56 PST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1021 mb (30.15 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KSMP 051056Z AUTO 23003KT 10SM CLR M04/M08 A3016 RMK AO2 SLP246 T10391078 TSNO $ |
| 01:56 PST |  Partly Cloudy | -4°C / 25°F | -8°C / 18°F | 74% | 1021 mb (30.15 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KSMP 050956Z AUTO 25003KT 10SM FEW001 M04/M08 A3015 RMK AO2 SLP241 T10391078 TSNO $ |
| 01:34 PST |  Overcast Hazy | -4°C / 25°F | -7°C / 19°F | 80% | 1021 mb (30.15 in) | SW 7 kph (SW 4.6 mph) | - | 2SM |
| | KSMP 050934Z AUTO 23004KT 2SM HZ BKN001 OVC007 M04/M07 A3014 RMK AO2 VIS 1 1/4V5 TSNO $ |
| 01:26 PST |  Overcast Hazy | -4°C / 25°F | -7°C / 19°F | 80% | 1020 mb (30.12 in) | SW 7 kph (SW 4.6 mph) | - | 1 1/2SM |
| | KSMP 050926Z AUTO 23004KT 1 1/2SM HZ BKN001 OVC007 M04/M07 A3013 RMK AO2 VIS 3/4V3 TSNO $ |
| 01:14 PST |  Obscured Hazy | -4°C / 25°F | -7°C / 19°F | 80% | 1020 mb (30.12 in) | SW 7 kph (SW 4.6 mph) | - | 3/4SM |
| | KSMP 050914Z AUTO 23004KT 3/4SM HZ VV001 M04/M07 A3013 RMK AO2 TSNO $ |
| 00:56 PST |  Obscured Hazy | -4°C / 25°F | -7°C / 19°F | 80% | 1020 mb (30.12 in) | SSW 7 kph (SSW 4.6 mph) | - | 3/4SM |
| | KSMP 050856Z AUTO 24004KT 3/4SM HZ VV001 M04/M07 A3013 RMK AO2 SLP233 T10391067 51004 TSNO $ |