| 21:56 PST |  Clear | -14°C / 7°F | -18°C / 0°F | 72% | 1009 mb (29.8 in) | ENE 6 kph (ENE 3.5 mph) | - | 10SM |
| | KEKO 060556Z AUTO 06003KT 10SM CLR M14/M18 A2981 RMK AO2 SLP146 T11391178 11050 21144 56001 |
| 20:56 PST |  Clear | -14°C / 7°F | -18°C / 0°F | 72% | 1009 mb (29.8 in) | Calm | - | 10SM |
| | KEKO 060456Z AUTO 00000KT 10SM CLR M14/M18 A2981 RMK AO2 SLP149 T11391178 |
| 19:56 PST |  Clear | -12°C / 10°F | -17°C / 1°F | 67% | 1009 mb (29.8 in) | Calm | - | 10SM |
| | KEKO 060356Z AUTO 00000KT 10SM CLR M12/M17 A2981 RMK AO2 SLP147 T11221167 |
| 18:56 PST |  Overcast | -8°C / 18°F | -14°C / 7°F | 62% | 1009 mb (29.8 in) | N 9 kph (N 5.8 mph) | - | 10SM |
| | KEKO 060256Z AUTO 36005KT 10SM OVC065 M08/M14 A2981 RMK AO2 SLP135 T10781144 54000 |
| 17:56 PST |  Partly Cloudy | -8°C / 18°F | -17°C / 1°F | 49% | 1009 mb (29.8 in) | Calm | - | 10SM |
| | KEKO 060156Z AUTO 00000KT 10SM SCT080 M08/M17 A2981 RMK AO2 SLP133 T10781167 |
| 16:56 PST |  Clear | -7°C / 19°F | -17°C / 1°F | 45% | 1009 mb (29.8 in) | N 13 kph (N 8.1 mph) | - | 10SM |
| | KEKO 060056Z AUTO 36007KT 10SM CLR M07/M17 A2981 RMK AO2 SLP131 T10671167 |
| 15:56 PST |  Overcast | -5°C / 23°F | -17°C / 1°F | 39% | 1009 mb (29.8 in) | NNW 22 kph (NNW 13.8 mph) | - | 10SM |
| | KEKO 052356Z AUTO 34012KT 10SM OVC065 M05/M17 A2981 RMK AO2 SLP126 T10501167 11028 21050 56009 |
| 14:56 PST |  Mostly Cloudy | -4°C / 25°F | -18°C / 0°F | 33% | 1010 mb (29.83 in) | N 20 kph (N 12.7 mph) | - | 10SM |
| | KEKO 052256Z AUTO 35011KT 10SM BKN065 M04/M18 A2982 RMK AO2 SLP127 T10391178 |
| 13:56 PST |  Clear | -4°C / 25°F | -18°C / 0°F | 33% | 1010 mb (29.83 in) | NW 24 kph (NW 15 mph) | - | 10SM |
| | KEKO 052156Z AUTO 31013KT 10SM CLR M04/M18 A2983 RMK AO2 SLP140 T10391183 |
| 12:56 PST |  Clear | -3°C / 27°F | -18°C / 0°F | 31% | 1011 mb (29.85 in) | NNW 24 kph (NNW 15 mph) | - | 10SM |
| | KEKO 052056Z AUTO 33013G21KT 10SM CLR M03/M18 A2985 RMK AO2 SLP146 T10331183 58013 |
| 11:56 PST |  Partly Cloudy | -4°C / 25°F | -18°C / 0°F | 33% | 1011 mb (29.85 in) | NW 30 kph (NW 18.4 mph) | - | 10SM |
| | KEKO 051956Z AUTO 32016G20KT 10SM SCT060 M04/M18 A2986 RMK AO2 SLP155 T10391178 |
| 10:56 PST |  Partly Cloudy | -4°C / 25°F | -17°C / 1°F | 36% | 1012 mb (29.88 in) | WNW 22 kph (WNW 13.8 mph) | - | 10SM |
| | KEKO 051856Z AUTO 29012G17KT 10SM FEW050 M04/M17 A2987 RMK AO2 SLP156 T10441172 |
| 09:56 PST |  Clear | -4°C / 25°F | -16°C / 3°F | 39% | 1012 mb (29.88 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KEKO 051756Z AUTO 30010KT 10SM CLR M04/M16 A2989 RMK AO2 SLP162 T10441156 11028 21067 51004 |
| 08:56 PST |  Clear | -5°C / 23°F | -14°C / 7°F | 50% | 1012 mb (29.88 in) | WNW 19 kph (WNW 11.5 mph) | - | 10SM |
| | KEKO 051656Z AUTO 29010KT 10SM CLR M05/M14 A2989 RMK AO2 SLP160 T10501139 |
| 07:56 PST |  Mostly Cloudy | -6°C / 21°F | -14°C / 7°F | 54% | 1012 mb (29.88 in) | W 11 kph (W 6.9 mph) | - | 10SM |
| | KEKO 051556Z AUTO 27006KT 10SM BKN085 M06/M14 A2989 RMK AO2 SLP163 T10611144 |
| 06:56 PST |  Overcast | -4°C / 25°F | -15°C / 5°F | 42% | 1012 mb (29.88 in) | N 9 kph (N 5.8 mph) | - | 10SM |
| | KEKO 051456Z AUTO 35005KT 10SM OVC075 M04/M15 A2987 RMK AO2 SLP152 T10441150 53014 |
| 05:56 PST |  Overcast | -4°C / 25°F | -14°C / 7°F | 46% | 1011 mb (29.85 in) | NE 11 kph (NE 6.9 mph) | - | 10SM |
| | KEKO 051356Z AUTO 05006KT 10SM OVC055 M04/M14 A2985 RMK AO2 SLP138 T10391144 |
| 04:56 PST |  Overcast | -4°C / 25°F | -13°C / 9°F | 50% | 1010 mb (29.83 in) | NE 13 kph (NE 8.1 mph) | - | 10SM |
| | KEKO 051256Z AUTO 04007KT 10SM OVC070 M04/M13 A2984 RMK AO2 SLP134 T10391128 |
| 03:56 PST |  Clear | -3°C / 27°F | -13°C / 9°F | 46% | 1010 mb (29.83 in) | ENE 15 kph (ENE 9.2 mph) | - | 10SM |
| | KEKO 051156Z AUTO 06008G18KT 10SM CLR M03/M13 A2983 RMK AO2 SLP116 T10281133 11022 21106 53009 |
| 02:56 PST |  Clear | -4°C / 25°F | -17°C / 1°F | 36% | 1009 mb (29.8 in) | NNW 11 kph (NNW 6.9 mph) | - | 10SM |
| | KEKO 051056Z AUTO 33006KT 10SM CLR M04/M17 A2980 RMK AO2 SLP101 T10391167 |
| 01:56 PST |  Clear | -9°C / 16°F | -19°C / -2°F | 45% | 1009 mb (29.8 in) | Calm | - | 10SM |
| | KEKO 050956Z AUTO 00000KT 10SM CLR M09/M19 A2979 RMK AO2 SLP107 T10891194 |
| 00:56 PST |  Clear | -9°C / 16°F | -19°C / -2°F | 45% | 1009 mb (29.8 in) | Calm | - | 10SM |
| | KEKO 050856Z AUTO 00000KT 10SM CLR M09/M19 A2979 RMK AO2 SLP117 T10941189 56020 |