| 20:55 PST |  Clear | 1°C / 34°F | -6°C / 21°F | 60% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KRNO 030455Z 00000KT 10SM CLR 01/M06 A3008 RMK AO2 SLP200 T00061056 |
| 19:55 PST |  Clear | 2°C / 36°F | -5°C / 23°F | 60% | 1018 mb (30.06 in) | Variable 6 kph (Variable 3.5 mph) | - | 10SM |
| | KRNO 030355Z VRB03KT 10SM CLR 02/M05 A3006 RMK AO2 SLP197 T00171050 |
| 18:55 PST |  Clear | 3°C / 37°F | -4°C / 25°F | 60% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KRNO 030255Z 00000KT 10SM CLR 03/M04 A3006 RMK AO2 SLP194 T00331044 53010 |
| 17:55 PST |  Clear | 4°C / 39°F | -5°C / 23°F | 52% | 1018 mb (30.06 in) | NNE 9 kph (NNE 5.8 mph) | - | 10SM |
| | KRNO 030155Z 02005KT 10SM CLR 04/M05 A3005 RMK AO2 SLP189 T00391050 |
| 16:55 PST |  Clear | 6°C / 43°F | -4°C / 25°F | 49% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KRNO 030055Z 00000KT 10SM CLR 06/M04 A3003 RMK AO2 SLP177 T00611044 |
| 15:55 PST |  Clear | 8°C / 46°F | -4°C / 25°F | 43% | 1017 mb (30.03 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KRNO 022355Z 10003KT 10SM CLR 08/M04 A3002 RMK AO2 SLP171 T00831044 10089 20011 56007 |
| 14:55 PST |  Clear | 9°C / 48°F | -4°C / 25°F | 40% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KRNO 022255Z 00000KT 10SM CLR 09/M04 A3003 RMK AO2 SLP174 T00891044 |
| 13:55 PST |  Clear | 8°C / 46°F | -5°C / 23°F | 40% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KRNO 022155Z 00000KT 10SM CLR 08/M05 A3004 RMK AO2 SLP174 T00831050 |
| 12:55 PST |  Partly Cloudy | 7°C / 45°F | -6°C / 21°F | 39% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KRNO 022055Z 00000KT 10SM FEW250 07/M06 A3005 RMK AO2 SLP178 T00671056 56017 |
| 11:55 PST |  Partly Cloudy | 6°C / 43°F | -6°C / 21°F | 42% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KRNO 021955Z 00000KT 10SM FEW250 06/M06 A3006 RMK AO2 SLP184 T00561056 |
| 10:55 PST |  Partly Cloudy | 3°C / 37°F | -6°C / 21°F | 52% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KRNO 021855Z 00000KT 10SM FEW250 03/M06 A3009 RMK AO2 SLP196 HZ FU VC SE-SW T00331061 |
| 09:55 PST |  Partly Cloudy | 1°C / 34°F | -6°C / 21°F | 60% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KRNO 021755Z 00000KT 10SM FEW250 01/M06 A3010 RMK AO2 SLP204 FU DSNT SW T00111056 10011 21061 53003 |
| 08:55 PST |  Partly Cloudy | -1°C / 30°F | -6°C / 21°F | 69% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KRNO 021655Z 00000KT 10SM FEW250 M01/M06 A3010 RMK AO2 SLP204 HZ E-S FU DSNT SW T10111061 |
| 07:55 PST |  Partly Cloudy | -4°C / 25°F | -7°C / 19°F | 80% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KRNO 021555Z 00000KT 10SM FEW250 M04/M07 A3009 RMK AO2 SLP205 T10391072 |
| 06:55 PST |  Partly Cloudy | -6°C / 21°F | -8°C / 18°F | 86% | 1019 mb (30.09 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KRNO 021455Z 17003KT 10SM FEW250 M06/M08 A3009 RMK AO2 SLP205 T10561083 53014 |
| 05:55 PST |  Clear | -5°C / 23°F | -8°C / 18°F | 80% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KRNO 021355Z 00000KT 10SM CLR M05/M08 A3008 RMK AO2 SLP197 T10501078 |
| 04:55 PST |  Partly Cloudy | -4°C / 25°F | -8°C / 18°F | 74% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KRNO 021255Z 00000KT 10SM SCT220 M04/M08 A3005 RMK AO2 SLP183 T10441078 |
| 03:55 PST |  Partly Cloudy | -4°C / 25°F | -7°C / 19°F | 80% | 1017 mb (30.03 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KRNO 021155Z 01003KT 10SM FEW250 M04/M07 A3004 RMK AO2 SLP175 7//// T10391072 10011 21044 58000 |
| 02:55 PST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KRNO 021055Z 00000KT 10SM CLR M04/M08 A3005 RMK AO2 SLP181 T10441078 |
| 01:55 PST |  Partly Cloudy | -3°C / 27°F | -7°C / 19°F | 74% | 1018 mb (30.06 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KRNO 020955Z 20003KT 10SM SCT250 M03/M07 A3006 RMK AO2 SLP178 T10281067 |
| 00:55 PST |  Partly Cloudy | -2°C / 28°F | -7°C / 19°F | 69% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KRNO 020855Z 00000KT 10SM FEW250 M02/M07 A3005 RMK AO2 SLP172 T10171067 58002 |