| 11:52 MST | 
Clear | 2°C / 36°F | -3°C / 27°F | 70% | 1018 mb
(30.06 in) | SW 11 kph
(SW 6.9 mph) | - | 10SM |
| | KALS 291852Z AUTO 22006KT 10SM CLR 02/M03 A3005
RMK AO2 SLP177 T00171033 |
| 10:52 MST |
Clear | 1°C / 34°F | -4°C / 25°F | 70% | 1018 mb
(30.06 in) | Calm | - | 10SM |
| | KALS 291752Z AUTO 00000KT 10SM CLR 01/M04 A3006
RMK AO2 SLP187 T00061039 10006 21083 50012 |
| 09:52 MST |
Clear | -1°C / 30°F | -3°C / 27°F | 86% | 1018 mb
(30.06 in) | SSE 6 kph
(SSE 3.5 mph) | - | 10SM |
| | KALS 291652Z AUTO 16003KT 10SM CLR M01/M03 A3006
RMK AO2 SLP195 T10111033 |
| 08:52 MST |
Clear | -4°C / 25°F | -5°C / 23°F | 93% | 1018 mb
(30.06 in) | ESE 6 kph
(ESE 3.5 mph) | - | 9SM |
| | KALS 291552Z AUTO 11003KT 9SM CLR M04/M05 A3005
RMK AO2 SLP199 T10391050 |
| 07:52 MST |
Clear | -7°C / 19°F | -8°C / 18°F | 93% | 1017 mb
(30.03 in) | E 7 kph
(E 4.6 mph) | - | 8SM |
| | KALS 291452Z AUTO 09004KT 8SM CLR M07/M08 A3002
RMK AO2 SLP189 T10671078 51012 |
| 06:52 MST | 
Clear | -6°C / 21°F | -8°C / 18°F | 86% | 1017 mb
(30.03 in) | Calm | - | 9SM |
| | KALS 291352Z AUTO 00000KT 9SM CLR M06/M08 A3002
RMK AO2 SLP185 T10611078 |
| 05:52 MST | 
Partly Cloudy | -6°C / 21°F | -6°C / 21°F | 100% | 1016 mb
(30 in) | NNW 9 kph
(NNW 5.8 mph) | - | 9SM |
| | KALS 291252Z AUTO 33005KT 9SM FEW060 M06/M06 A3000
RMK AO2 SLP170 T10561061 |
| 04:52 MST |
Clear | -6°C / 21°F | -7°C / 19°F | 93% | 1015 mb
(29.97 in) | NE 6 kph
(NE 3.5 mph) | - | 10SM |
| | KALS 291152Z AUTO 04003KT 10SM CLR M06/M07 A2998
RMK AO2 SLP160 60003 70003 T10561067 10000 21056 50003 |
| 03:52 MST |
Clear | -6°C / 21°F | -6°C / 21°F | 100% | 1015 mb
(29.97 in) | SSW 7 kph
(SSW 4.6 mph) | 0.00 mm
(0.00 in) | 9SM |
| | KALS 291052Z AUTO 25004KT 9SM CLR M06/M06 A2998
RMK AO2 SNE13 SLP155 P0000 T10561061 |
| 03:25 MST | 
Mostly Cloudy | -4°C / 25°F | -6°C / 21°F | 86% | 1015 mb
(29.97 in) | NNW 6 kph
(NNW 3.5 mph) | 0.00 mm
(0.00 in) | 10SM |
| | KALS 291025Z AUTO 33003KT 10SM FEW031 SCT047 BKN075 M04/M06 A2998
RMK AO2 SNE13 P0000 |
| 03:04 MST | 
Overcast
Light Snow | -3°C / 27°F | -4°C / 25°F | 93% | 1015 mb
(29.97 in) | S 7 kph
(S 4.6 mph) | 0.00 mm
(0.00 in) | 3SM |
| | KALS 291004Z AUTO 19004KT 3SM -SN BR BKN015 BKN029 OVC045 M03/M04 A2998
RMK AO2 P0000 |
| 03:01 MST |
Overcast
Light Snow | -3°C / 27°F | -4°C / 25°F | 93% | 1015 mb
(29.97 in) | S 6 kph
(S 3.5 mph) | 0.00 mm
(0.00 in) | 2 1/2SM |
| | KALS 291001Z AUTO 18003KT 2 1/2SM -SN BR BKN011 OVC029 M03/M04 A2998
RMK AO2 P0000 |
| 02:52 MST |
Overcast
Light Snow | -2°C / 28°F | -3°C / 27°F | 93% | 1015 mb
(29.97 in) | Calm | 0.76 mm
(0.03 in) | 1 1/2SM |
| | KALS 290952Z AUTO 00000KT 1 1/2SM -SN BR OVC007 M02/M03 A2996
RMK AO2 SLP135 P0003 T10221033 |
| 02:48 MST |
Overcast
Light Snow | -2°C / 28°F | -3°C / 27°F | 93% | 1015 mb
(29.97 in) | Calm | 0.76 mm
(0.03 in) | 1 1/4SM |
| | KALS 290948Z AUTO 00000KT 1 1/4SM -SN BR OVC005 M02/M03 A2997
RMK AO2 PRESFR P0003 |
| 02:18 MST |
Obscured
Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1016 mb
(30 in) | S 13 kph
(S 8.1 mph) | 0.25 mm
(0.01 in) | 1SM |
| | KALS 290918Z AUTO 17007KT 1SM -SN BR VV004 M02/M04 A3000
RMK AO2 P0001 |
| 02:05 MST |
Overcast
Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1016 mb
(30 in) | S 15 kph
(S 9.2 mph) | 0.00 mm
(0.00 in) | 1 1/4SM |
| | KALS 290905Z AUTO 17008KT 1 1/4SM -SN BR OVC009 M02/M04 A3000
RMK AO2 P0000 |
| 01:58 MST |
Overcast
Light Snow | -2°C / 28°F | -4°C / 25°F | 86% | 1016 mb
(30 in) | S 13 kph
(S 8.1 mph) | 0.00 mm
(0.00 in) | 1 3/4SM |
| | KALS 290858Z AUTO 19007KT 1 3/4SM -SN OVC015 M02/M04 A3000
RMK AO2 P0000 |
| 01:52 MST |
Overcast
Light Snow | -1°C / 30°F | -5°C / 23°F | 75% | 1016 mb
(30 in) | S 15 kph
(S 9.2 mph) | 0.00 mm
(0.00 in) | 4SM |
| | KALS 290852Z AUTO 19008KT 4SM -SN OVC025 M01/M05 A3000
RMK AO2 SNB48 SLP144 P0000 60000 T10111050 51015 |
| 00:52 MST | 
Overcast | -1°C / 30°F | -6°C / 21°F | 69% | 1015 mb
(29.97 in) | SW 17 kph
(SW 10.4 mph) | - | 10SM |
| | KALS 290752Z AUTO 21009KT 10SM OVC044 M01/M06 A2998
RMK AO2 SLP136 T10111056 |
