| 14:55 PST |  Overcast | -7°C / 19°F | -13°C / 9°F | 63% | 1016 mb (30 in) | Calm | - | 8SM |
| | KRNO 102255Z 00000KT 8SM FEW050 SCT110 SCT150 OVC200 M07/M13 A3001 RMK AO2 SLP215 ACSL DSNT SW HZ ALQDS T10721128 |
| 13:55 PST |  Mostly Cloudy | -7°C / 19°F | -13°C / 9°F | 63% | 1016 mb (30 in) | Calm | - | 10SM |
| | KRNO 102155Z 00000KT 10SM FEW050 SCT110 BKN200 M07/M13 A3001 RMK AO2 SLP214 ACSL DSNT SW T10671128 |
| 12:55 PST |  Mostly Cloudy Hazy | -9°C / 16°F | -14°C / 7°F | 67% | 1017 mb (30.03 in) | S 6 kph (S 3.5 mph) | - | 6SM |
| | KRNO 102055Z 17003KT 6SM HZ FEW055 SCT110 BKN200 M09/M14 A3002 RMK AO2 SLP222 VIS LWR SE-SW 60000 T10941139 58019 |
| 11:55 PST |  Partly Cloudy Hazy | -8°C / 18°F | -13°C / 9°F | 68% | 1017 mb (30.03 in) | Calm | 0.00 mm (0.00 in) | 5SM |
| | KRNO 101955Z 00000KT 5SM HZ SCT130 SCT180 M08/M13 A3004 RMK AO2 SNB27E28 SLP229 ACSL DSNT S-W P0000 T10831133 |
| 10:55 PST |  Mostly Cloudy Hazy | -11°C / 12°F | -14°C / 7°F | 79% | 1018 mb (30.06 in) | Calm | - | 5SM |
| | KRNO 101855Z 00000KT 5SM HZ FEW070 BKN130 M11/M14 A3007 RMK AO2 SLP240 ACSL SW T11061144 |
| 09:55 PST |  Partly Cloudy Fog And Mist | -13°C / 9°F | -16°C / 3°F | 78% | 1019 mb (30.09 in) | Calm | - | 5SM |
| | KRNO 101755Z 00000KT 5SM BR HZ FEW065 SCT110 M13/M16 A3008 RMK AO2 SLP252 ACSL ALQDS VIS LWR E-SE T11281156 11117 21161 50008 |
| 08:55 PST |  Partly Cloudy Fog And Mist | -14°C / 7°F | -15°C / 5°F | 92% | 1019 mb (30.09 in) | Calm | - | 5SM |
| | KRNO 101655Z 00000KT 5SM BR FEW080 SCT120 SCT200 M14/M15 A3009 RMK AO2 SLP258 ACSL DSNT SE S VIS LWR E-SE T11391150 |
| 07:55 PST |  Mostly Cloudy Hazy | -14°C / 7°F | -16°C / 3°F | 85% | 1018 mb (30.06 in) | Calm | - | 4SM |
| | KRNO 101555Z 00000KT 4SM HZ BR SCT180 BKN250 M14/M16 A3006 RMK AO2 SLP243 ACSL S-SW T11391156 |
| 06:55 PST |  Mostly Cloudy | -16°C / 3°F | -18°C / 0°F | 85% | 1018 mb (30.06 in) | Calm | - | 7SM |
| | KRNO 101455Z 00000KT 7SM FEW130 BKN200 BKN250 M16/M18 A3006 RMK AO2 SLP245 FU/HZ ALQDS T11611178 53001 |
| 05:55 PST |  Mostly Cloudy | -15°C / 5°F | -17°C / 1°F | 85% | 1018 mb (30.06 in) | Calm | - | 7SM |
| | KRNO 101355Z 00000KT 7SM BKN200 BKN250 M15/M17 A3005 RMK AO2 SLP234 FU/HZ ALQDS T11501172 |
| 04:55 PST |  Mostly Cloudy Fog And Mist | -15°C / 5°F | -17°C / 1°F | 85% | 1018 mb (30.06 in) | Calm | - | 5SM |
| | KRNO 101255Z 00000KT 5SM BR BKN200 BKN250 M15/M17 A3005 RMK AO2 SLP234 FU/HZ ALQDS T11501172 |
| 03:55 PST |  Mostly Cloudy Fog And Mist | -16°C / 3°F | -18°C / 0°F | 85% | 1018 mb (30.06 in) | Calm | - | 7SM |
| | KRNO 101155Z 00000KT 7SM BR BKN200 M16/M18 A3005 RMK AO2 SLP233 FU/HZ ALQDS T11561178 11139 21167 56003 |
| 02:55 PST |  Mostly Cloudy Fog And Mist | -15°C / 5°F | -17°C / 1°F | 85% | 1018 mb (30.06 in) | Calm | - | 6SM |
| | KRNO 101055Z 00000KT 6SM BR SCT180 BKN200 M15/M17 A3006 RMK AO2 SLP234 FU/HZ ALQDS T11501172 |
| 01:55 PST |  Mostly Cloudy Fog And Mist | -16°C / 3°F | -18°C / 0°F | 85% | 1018 mb (30.06 in) | Calm | - | 5SM |
| | KRNO 100955Z 00000KT 5SM BR BKN200 M16/M18 A3005 RMK AO2 SLP233 FU/HZ ALQDS T11561178 |
| 00:55 PST |  Mostly Cloudy Fog And Mist | -15°C / 5°F | -17°C / 1°F | 85% | 1018 mb (30.06 in) | Calm | - | 6SM |
| | KRNO 100855Z 00000KT 6SM BR BKN200 M15/M17 A3006 RMK AO2 SLP240 FU/HZ ALQDS T11501172 58004 |