| 21:56 PST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1017 mb (30.03 in) | Variable 11 kph (Variable 6.9 mph) | - | 10SM |
| | KSMP 060556Z AUTO VRB06G20KT 10SM OVC031 M04/M08 A3002 RMK AO2 SLP200 60003 T10441083 11011 21044 56009 TSNO $ |
| 21:27 PST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1017 mb (30.03 in) | E 15 kph (E 9.2 mph) | - | 10SM |
| | KSMP 060527Z AUTO 10008G21KT 030V140 10SM FEW007 SCT011 OVC031 M04/M08 A3002 RMK AO2 TSNO $ |
| 21:17 PST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1017 mb (30.03 in) | Variable 7 kph (Variable 4.6 mph) | - | 10SM |
| | KSMP 060517Z AUTO VRB04KT 10SM FEW007 BKN029 OVC039 M04/M08 A3002 RMK AO2 TSNO $ |
| 20:56 PST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1017 mb (30.03 in) | Variable 11 kph (Variable 6.9 mph) | 0.00 mm (0.00 in) | 10SM |
| | KSMP 060456Z AUTO VRB06KT 10SM FEW004 BKN031 OVC040 M04/M08 A3003 RMK AO2 SNB20E30 SLP202 P0000 T10391083 TSNO $ |
| 20:49 PST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1017 mb (30.03 in) | Variable 11 kph (Variable 6.9 mph) | 0.00 mm (0.00 in) | 10SM |
| | KSMP 060449Z AUTO VRB06KT 10SM FEW005 SCT010 OVC031 M04/M08 A3003 RMK AO2 SNB20E30 P0000 TSNO $ |
| 19:56 PST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1017 mb (30.03 in) | Variable 7 kph (Variable 4.6 mph) | 0.25 mm (0.01 in) | 8SM |
| | KSMP 060356Z AUTO VRB04KT 8SM FEW004 BKN011 OVC047 M04/M08 A3004 RMK AO2 SNE52 SLP207 P0001 T10391078 TSNO $ |
| 19:48 PST |  Overcast Light Snow | -4°C / 25°F | -8°C / 18°F | 74% | 1017 mb (30.03 in) | Variable 7 kph (Variable 4.6 mph) | 0.25 mm (0.01 in) | 3SM |
| | KSMP 060348Z AUTO VRB04KT 3SM -SN SCT004 BKN011 OVC030 M04/M08 A3004 RMK AO2 P0001 TSNO $ |
| 19:43 PST |  Overcast Light Snow | -4°C / 25°F | -8°C / 18°F | 74% | 1017 mb (30.03 in) | Variable 7 kph (Variable 4.6 mph) | 0.25 mm (0.01 in) | 2SM |
| | KSMP 060343Z AUTO VRB04KT 2SM -SN SCT002 BKN028 OVC032 M04/M08 A3004 RMK AO2 P0001 TSNO $ |
| 19:34 PST |  Overcast Light Snow | -4°C / 25°F | -7°C / 19°F | 80% | 1017 mb (30.03 in) | Variable 9 kph (Variable 5.8 mph) | 0.25 mm (0.01 in) | 2SM |
| | KSMP 060334Z AUTO VRB05KT 2SM -SN BKN002 BKN023 OVC034 M04/M07 A3004 RMK AO2 P0001 TSNO $ |
| 19:26 PST |  Overcast Light Snow | -4°C / 25°F | -7°C / 19°F | 80% | 1017 mb (30.03 in) | Variable 7 kph (Variable 4.6 mph) | 0.25 mm (0.01 in) | 1SM |
| | KSMP 060326Z AUTO VRB04KT 1SM -SN BKN002 BKN008 OVC034 M04/M07 A3004 RMK AO2 P0001 TSNO $ |
| 18:56 PST |  Overcast Light Snow | -3°C / 27°F | -7°C / 19°F | 74% | 1018 mb (30.06 in) | Variable 6 kph (Variable 3.5 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KSMP 060256Z AUTO VRB03KT 3/4SM -SN OVC002 M03/M07 A3005 RMK AO2 SLP212 P0001 60002 T10331072 56010 TSNO $ |
| 18:32 PST |  Overcast Light Snow | -3°C / 27°F | -7°C / 19°F | 74% | 1018 mb (30.06 in) | Variable 7 kph (Variable 4.6 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KSMP 060232Z AUTO VRB04KT 3/4SM -SN BKN002 BKN017 OVC028 M03/M07 A3005 RMK AO2 P0000 TSNO $ |
| 18:19 PST |  Overcast Light Snow | -3°C / 27°F | -7°C / 19°F | 74% | 1018 mb (30.06 in) | Variable 9 kph (Variable 5.8 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KSMP 060219Z AUTO VRB05KT 3/4SM -SN SCT004 BKN015 OVC025 M03/M07 A3005 RMK AO2 P0000 TSNO $ |
| 17:56 PST |  Overcast Light Snow | -3°C / 27°F | -7°C / 19°F | 74% | 1018 mb (30.06 in) | Variable 6 kph (Variable 3.5 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KSMP 060156Z AUTO VRB03KT 3/4SM -SN BKN015 BKN023 OVC029 M03/M07 A3005 RMK AO2 SNB07 SLP213 P0001 T10331072 TSNO $ |
| 17:48 PST |  Overcast Light Snow | -3°C / 27°F | -7°C / 19°F | 74% | 1018 mb (30.06 in) | Variable 9 kph (Variable 5.8 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KSMP 060148Z AUTO VRB05KT 3/4SM -SN SCT017 BKN023 OVC041 M03/M07 A3005 RMK AO2 SNB07 P0000 TSNO $ |
| 17:35 PST |  Overcast Light Snow | -3°C / 27°F | -8°C / 18°F | 69% | 1018 mb (30.06 in) | E 13 kph (E 8.1 mph) | 0.00 mm (0.00 in) | 1 1/4SM |
| | KSMP 060135Z AUTO 10007KT 1 1/4SM -SN BKN024 OVC041 M03/M08 A3006 RMK AO2 SNB07 P0000 TSNO $ |
| 17:22 PST |  Overcast Light Snow | -2°C / 28°F | -9°C / 16°F | 59% | 1018 mb (30.06 in) | Variable 7 kph (Variable 4.6 mph) | 0.00 mm (0.00 in) | 1 3/4SM |
| | KSMP 060122Z AUTO VRB04KT 1 3/4SM -SN SCT028 BKN039 OVC046 M02/M09 A3006 RMK AO2 SNB07 P0000 TSNO $ |
| 16:56 PST |  Overcast | -2°C / 28°F | -10°C / 14°F | 55% | 1018 mb (30.06 in) | Variable 7 kph (Variable 4.6 mph) | - | 10SM |
| | KSMP 060056Z AUTO VRB04KT 10SM BKN042 BKN050 OVC060 M02/M10 A3007 RMK AO2 SLP216 T10171100 TSNO $ |
| 15:56 PST |  Overcast | -1°C / 30°F | -12°C / 10°F | 43% | 1019 mb (30.09 in) | Variable 9 kph (Variable 5.8 mph) | - | 10SM |
| | KSMP 052356Z AUTO VRB05KT 10SM OVC060 M01/M12 A3008 RMK AO2 SLP221 T10111117 10011 21022 56015 TSNO $ |
| 14:56 PST |  Overcast | -1°C / 30°F | -12°C / 10°F | 43% | 1019 mb (30.09 in) | SE 7 kph (SE 4.6 mph) | - | 10SM |
| | KSMP 052256Z AUTO 13004KT 10SM OVC055 M01/M12 A3010 RMK AO2 SLP224 T10061122 TSNO $ |
| 13:56 PST |  Partly Cloudy | 1°C / 34°F | -12°C / 10°F | 38% | 1020 mb (30.12 in) | Variable 6 kph (Variable 3.5 mph) | - | 10SM |
| | KSMP 052156Z AUTO VRB03KT 10SM SCT055 01/M12 A3012 RMK AO2 SLP229 T00061122 TSNO $ |
| 12:56 PST |  Clear | 1°C / 34°F | -12°C / 10°F | 38% | 1020 mb (30.12 in) | Variable 7 kph (Variable 4.6 mph) | - | 10SM |
| | KSMP 052056Z AUTO VRB04KT 10SM CLR 01/M12 A3013 RMK AO2 SLP233 T00111117 58016 TSNO $ |
| 11:56 PST |  Clear | 1°C / 34°F | -9°C / 16°F | 48% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KSMP 051956Z AUTO 00000KT 10SM CLR 01/M09 A3016 RMK AO2 SLP240 T00061094 TSNO $ |
| 10:56 PST |  Clear | 1°C / 34°F | -9°C / 16°F | 48% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KSMP 051856Z AUTO 00000KT 10SM CLR 01/M09 A3017 RMK AO2 SLP247 T00061089 TSNO $ |
| 09:56 PST |  Clear | -2°C / 28°F | -8°C / 18°F | 64% | 1022 mb (30.18 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KSMP 051756Z AUTO 23003KT 10SM CLR M02/M08 A3019 RMK AO2 SLP255 T10221083 11022 21050 51002 TSNO $ |
| 08:56 PST |  Clear | -3°C / 27°F | -8°C / 18°F | 69% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KSMP 051656Z AUTO 00000KT 10SM CLR M03/M08 A3019 RMK AO2 SLP258 T10331083 TSNO $ |
| 07:56 PST |  Clear | -4°C / 25°F | -9°C / 16°F | 69% | 1022 mb (30.18 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSMP 051556Z AUTO 22004KT 10SM CLR M04/M09 A3019 RMK AO2 SLP258 T10391089 TSNO $ |
| 06:56 PST |  Mostly Cloudy | -4°C / 25°F | -8°C / 18°F | 74% | 1022 mb (30.18 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KSMP 051456Z AUTO 23003KT 10SM BKN060 M04/M08 A3018 RMK AO2 SLP258 T10441083 53006 TSNO $ |
| 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 $ |