| 12:53 MST |  Overcast | 4°C / 39°F | 1°C / 34°F | 81% | 1016 mb (30 in) | N 26 kph (N 16.1 mph) | 0.25 mm (0.01 in) | 10SM |
| | KGUP 291953Z AUTO 01014KT 10SM BKN017 BKN023 OVC040 04/01 A2999 RMK AO2 SLP158 P0001 T00390011 |
| 11:53 MST |  Overcast | 4°C / 39°F | 2°C / 36°F | 87% | 1016 mb (30 in) | N 20 kph (N 12.7 mph) | - | 10SM |
| | KGUP 291853Z AUTO 01011KT 10SM OVC023 04/02 A3000 RMK AO2 SLP166 T00390017 |
| 11:00 MST |  Mostly Cloudy | 4°C / 39°F | 2°C / 36°F | 87% | 1016 mb (30 in) | N 17 kph (N 10.4 mph) | - | 10SM |
| | KGUP 291800Z AUTO 36009KT 10SM BKN015 04/02 A3001 RMK AO2 |
| 10:53 MST |  Mostly Cloudy | 4°C / 39°F | 2°C / 36°F | 87% | 1016 mb (30 in) | NNE 15 kph (NNE 9.2 mph) | - | 10SM |
| | KGUP 291753Z AUTO 02008KT 10SM BKN013 04/02 A3001 RMK AO2 SLP168 60000 T00390017 10050 20000 50006 |
| 10:32 MST |  Mostly Cloudy | 5°C / 41°F | 1°C / 34°F | 76% | 1016 mb (30 in) | NE 15 kph (NE 9.2 mph) | - | 10SM |
| | KGUP 291732Z AUTO 04008KT 10SM BKN013 05/01 A3001 RMK AO2 |
| 09:53 MST |  Clear | 4°C / 39°F | 1°C / 34°F | 81% | 1016 mb (30 in) | NNE 9 kph (NNE 5.8 mph) | - | 10SM |
| | KGUP 291653Z AUTO 02005KT 10SM CLR 04/01 A3001 RMK AO2 SLP165 T00390011 |
| 09:34 MST |  Partly Cloudy | 3°C / 37°F | 0°C / 32°F | 81% | 1016 mb (30 in) | NE 9 kph (NE 5.8 mph) | - | 10SM |
| | KGUP 291634Z AUTO 05005KT 10SM SCT025 03/00 A3001 RMK AO2 $ |
| 08:53 MST |  Overcast | 1°C / 34°F | -1°C / 30°F | 87% | 1016 mb (30 in) | Calm | - | 10SM |
| | KGUP 291553Z AUTO 00000KT 10SM OVC025 01/M01 A3000 RMK AO2 SLP181 T00111006 $ |
| 08:07 MST |  Overcast | 1°C / 34°F | -1°C / 30°F | 87% | 1016 mb (30 in) | ENE 11 kph (ENE 6.9 mph) | - | 10SM |
| | KGUP 291507Z AUTO 06006KT 10SM FEW005 SCT008 OVC021 01/M01 A2999 RMK AO2 $ |
| 08:00 MST |  Overcast | 1°C / 34°F | -1°C / 30°F | 87% | 1016 mb (30 in) | NE 11 kph (NE 6.9 mph) | - | 10SM |
| | KGUP 291500Z AUTO 05006KT 10SM FEW005 BKN008 OVC023 01/M01 A2999 RMK AO2 $ |
| 07:53 MST |  Overcast | 1°C / 34°F | -1°C / 30°F | 87% | 1016 mb (30 in) | NE 9 kph (NE 5.8 mph) | - | 9SM |
| | KGUP 291453Z AUTO 05005KT 9SM SCT005 SCT008 OVC023 01/M01 A2999 RMK AO2 SLP160 60000 T00061011 51009 $ |
| 07:49 MST |  Overcast | 1°C / 34°F | -1°C / 30°F | 87% | 1015 mb (29.97 in) | NE 7 kph (NE 4.6 mph) | - | 7SM |
| | KGUP 291449Z AUTO 05004KT 7SM SCT003 SCT008 OVC023 01/M01 A2998 RMK AO2 $ |
| 06:53 MST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1015 mb (29.97 in) | Calm | 0.00 mm (0.00 in) | 9SM |
| | KGUP 291353Z AUTO 00000KT 9SM OVC025 00/M01 A2996 RMK AO2 SNE14 SLP156 P0000 T00001006 $ |
| 06:03 MST |  Overcast Light Snow | 0°C / 32°F | 0°C / 32°F | 100% | 1014 mb (29.94 in) | Calm | 0.00 mm (0.00 in) | 6SM |
| | KGUP 291303Z AUTO 00000KT 6SM -SN BR FEW007 SCT012 OVC025 00/00 A2995 RMK AO2 P0000 $ |
| 05:53 MST |  Overcast Light Snow | 0°C / 32°F | -1°C / 30°F | 93% | 1014 mb (29.94 in) | Calm | 0.00 mm (0.00 in) | 7SM |
| | KGUP 291253Z AUTO 00000KT 7SM -SN SCT007 BKN012 OVC025 00/M01 A2995 RMK AO2 SNB04 SLP134 P0000 T00001006 $ |
| 05:21 MST |  Overcast Light Snow | 0°C / 32°F | 0°C / 32°F | 100% | 1014 mb (29.94 in) | Calm | 0.00 mm (0.00 in) | 6SM |
| | KGUP 291221Z AUTO 00000KT 6SM -SN BR SCT004 BKN009 OVC012 00/00 A2994 RMK AO2 SNB04 P0000 $ |
| 04:53 MST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1014 mb (29.94 in) | NNE 6 kph (NNE 3.5 mph) | - | 9SM |
| | KGUP 291153Z AUTO 02003KT 9SM OVC004 00/M01 A2993 RMK AO2 CIG 003V007 SLP123 60005 70006 T00001006 10000 21033 51006 $ |
| 04:01 MST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1014 mb (29.94 in) | Calm | - | 8SM |
| | KGUP 291101Z AUTO 00000KT 8SM BKN004 OVC070 00/M01 A2993 RMK AO2 $ |
| 03:53 MST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1014 mb (29.94 in) | Calm | 1.02 mm (0.04 in) | 8SM |
| | KGUP 291053Z AUTO 00000KT 8SM SCT004 BKN043 OVC075 00/M01 A2993 RMK AO2 TSE0954UPB38E41SNE38 SLP111 P0004 T00001006 $ |
| 03:51 MST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1014 mb (29.94 in) | Calm | 1.02 mm (0.04 in) | 8SM |
| | KGUP 291051Z AUTO 00000KT 8SM SCT004 BKN032 OVC075 00/M01 A2993 RMK AO2 TSE0954UPB38E41SNE38 P0004 $ |
| 03:38 MST |  Overcast Unknown Precip | 0°C / 32°F | 0°C / 32°F | 100% | 1014 mb (29.94 in) | Calm | 1.02 mm (0.04 in) | 7SM |
| | KGUP 291038Z AUTO 00000KT 7SM UP BKN004 OVC020 00/00 A2993 RMK AO2 TSE0954UPB38SNE38 P0004 $ |
| 03:34 MST |  Overcast Light Snow | 0°C / 32°F | 0°C / 32°F | 100% | 1014 mb (29.94 in) | N 6 kph (N 3.5 mph) | 1.02 mm (0.04 in) | 5SM |
| | KGUP 291034Z AUTO 35003KT 5SM -SN BR SCT004 SCT013 OVC021 00/00 A2993 RMK AO2 TSE0954 P0004 $ |
| 03:27 MST |  Overcast Light Snow | 0°C / 32°F | -1°C / 30°F | 93% | 1014 mb (29.94 in) | NNW 6 kph (NNW 3.5 mph) | 1.02 mm (0.04 in) | 3SM |
| | KGUP 291027Z AUTO 34003KT 3SM -SN BR FEW006 OVC013 00/M01 A2993 RMK AO2 TSE0954 P0004 $ |
| 03:13 MST |  Overcast Light Snow | 0°C / 32°F | 0°C / 32°F | 100% | 1014 mb (29.94 in) | Calm | 0.51 mm (0.02 in) | 1 1/4SM |
| | KGUP 291013Z AUTO 00000KT 1 1/4SM -SN BR BKN008 OVC014 00/00 A2994 RMK AO2 TSE0954 P0002 $ |
| 03:00 MST |  Overcast Light Snow | 0°C / 32°F | -1°C / 30°F | 93% | 1014 mb (29.94 in) | S 6 kph (S 3.5 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KGUP 291000Z AUTO 17003KT 2 1/2SM -SN BR BKN008 OVC022 00/M01 A2994 RMK AO2 TSE0954 P0000 $ |
| 02:53 MST |  Overcast Thunder Storms | 0°C / 32°F | -1°C / 30°F | 93% | 1014 mb (29.94 in) | S 7 kph (S 4.6 mph) | 0.25 mm (0.01 in) | 2 1/2SM |
| | KGUP 290953Z AUTO 18004KT 2 1/2SM VCTS -SN BR OVC008 00/M01 A2994 RMK AO2 TSB39SNB41 SLP120 P0001 T00001006 $ |
| 02:45 MST |  Overcast Thunder Storms | -1°C / 30°F | -1°C / 30°F | 100% | 1014 mb (29.94 in) | S 13 kph (S 8.1 mph) | 0.00 mm (0.00 in) | 7SM |
| | KGUP 290945Z AUTO 19007KT 7SM VCTS -SN OVC008 M01/M01 A2994 RMK AO2 TSB39SNB41 P0000 $ |
| 02:28 MST |  Overcast | -2°C / 28°F | -3°C / 27°F | 93% | 1013 mb (29.91 in) | SW 6 kph (SW 3.5 mph) | - | 8SM |
| | KGUP 290928Z AUTO 21003KT 8SM OVC008 M02/M03 A2991 RMK AO2 $ |
| 02:19 MST |  Overcast Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1013 mb (29.91 in) | S 7 kph (S 4.6 mph) | - | 2SM |
| | KGUP 290919Z AUTO 19004KT 2SM BR FEW001 OVC008 M02/M03 A2992 RMK AO2 $ |
| 02:10 MST |  Overcast Fog | -2°C / 28°F | -3°C / 27°F | 93% | 1013 mb (29.91 in) | W 6 kph (W 3.5 mph) | - | 1/2SM |
| | KGUP 290910Z AUTO 27003KT 1/2SM FZFG BKN001 OVC008 M02/M03 A2992 RMK AO2 $ |
| 01:53 MST |  Overcast Fog | -3°C / 27°F | -4°C / 25°F | 93% | 1013 mb (29.91 in) | Calm | - | 1/4SM |
| | KGUP 290853Z AUTO 00000KT 1/4SM FZFG OVC001 M03/M04 A2991 RMK AO2 SLP111 T10281039 55001 $ |
| 01:51 MST |  Overcast Fog | -3°C / 27°F | -4°C / 25°F | 93% | 1013 mb (29.91 in) | Calm | - | 1/4SM |
| | KGUP 290851Z AUTO 00000KT 1/4SM FZFG OVC001 M03/M04 A2991 RMK AO2 $ |
| 01:16 MST |  Overcast Fog | -2°C / 28°F | -3°C / 27°F | 93% | 1013 mb (29.91 in) | Calm | - | 1/2SM |
| | KGUP 290816Z AUTO 00000KT 1/2SM FZFG OVC001 M02/M03 A2992 RMK AO2 |
| 01:07 MST |  Overcast Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1013 mb (29.91 in) | Calm | - | 1 1/2SM |
| | KGUP 290807Z AUTO 00000KT 1 1/2SM BR OVC001 M02/M03 A2991 RMK AO2 |
| 00:53 MST |  Overcast Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1013 mb (29.91 in) | Calm | - | 6SM |
| | KGUP 290753Z AUTO 00000KT 6SM BR OVC003 M02/M03 A2992 RMK AO2 SLP116 T10221033 |
| 00:35 MST |  Overcast | -3°C / 27°F | -3°C / 27°F | 100% | 1013 mb (29.91 in) | Calm | - | 7SM |
| | KGUP 290735Z AUTO 00000KT 7SM BKN003 OVC060 M03/M03 A2992 RMK AO2 |
| 00:27 MST |  Overcast Fog And Mist | -3°C / 27°F | -3°C / 27°F | 100% | 1013 mb (29.91 in) | Calm | - | 2SM |
| | KGUP 290727Z AUTO 00000KT 2SM BR BKN003 BKN006 OVC046 M03/M03 A2991 RMK AO2 |
| 00:05 MST |  Overcast Fog | -3°C / 27°F | -3°C / 27°F | 100% | 1013 mb (29.91 in) | Calm | - | 1/2SM |
| | KGUP 290705Z AUTO 00000KT 1/2SM FZFG OVC001 M03/M03 A2992 RMK AO2 |