| 11:04 MST |  Overcast Snow | -10°C / 14°F | -12°C / 10°F | 85% | 1022 mb (30.18 in) | ENE 11 kph (ENE 6.9 mph) | 0.25 mm (0.01 in) | 1/2SM |
| | KBIL 231804Z 07006KT 1/2SM R10L/2200V6000FT SN FZFG FEW001 BKN008 OVC016 M10/M12 A3018 RMK AO2 P0001 |
| 10:53 MST |  Overcast Light Snow | -10°C / 14°F | -12°C / 10°F | 85% | 1022 mb (30.18 in) | E 7 kph (E 4.6 mph) | - | 3/4SM |
| | KBIL 231753Z 09004KT 3/4SM R10L/5000VP6000FT -SN BR BKN013 OVC024 M10/M12 A3018 RMK AO2 SFC VIS 1 SLP273 60010 4/002 933002 T11001117 11056 21100 51026 |
| 10:17 MST |  Overcast Light Snow | -9°C / 16°F | -12°C / 10°F | 79% | 1021 mb (30.15 in) | E 11 kph (E 6.9 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KBIL 231717Z 09006KT 3/4SM R10L/4500V5500FT -SN BR BKN013 OVC024 M09/M12 A3016 RMK AO2 SFC VIS 1 P0000 |
| 09:53 MST |  Overcast Light Snow | -9°C / 16°F | -11°C / 12°F | 86% | 1021 mb (30.15 in) | ENE 13 kph (ENE 8.1 mph) | 0.51 mm (0.02 in) | 1/2SM |
| | KBIL 231653Z 07007KT 1/2SM R10L/3000V3500FT -SN FZFG BKN007 OVC018 M09/M11 A3015 RMK AO2 SLP263 P0002 T10941111 |
| 08:59 MST |  Overcast Snow | -8°C / 18°F | -10°C / 14°F | 86% | 1020 mb (30.12 in) | NE 20 kph (NE 12.7 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBIL 231559Z 05011KT 1/2SM R10L/2200V2800FT SN FZFG BKN006 OVC013 M08/M10 A3013 RMK AO2 P0000 |
| 08:53 MST |  Overcast Snow | -8°C / 18°F | -9°C / 16°F | 93% | 1020 mb (30.12 in) | ENE 20 kph (ENE 12.7 mph) | 0.51 mm (0.02 in) | 1/2SM |
| | KBIL 231553Z 07011KT 1/2SM R10L/2400V4000FT SN FZFG SCT006 OVC013 M08/M09 A3013 RMK AO2 SLP251 P0002 T10781094 |
| 08:32 MST |  Overcast Light Snow | -8°C / 18°F | -10°C / 14°F | 86% | 1020 mb (30.12 in) | NE 13 kph (NE 8.1 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KBIL 231532Z 03007KT 3/4SM R10L/4500VP6000FT -SN BR FEW005 BKN016 OVC024 M08/M10 A3011 RMK AO2 TWR VIS 1 P0000 |
| 08:06 MST |  Overcast Light Snow | -8°C / 18°F | -10°C / 14°F | 86% | 1019 mb (30.09 in) | NE 19 kph (NE 11.5 mph) | 0.00 mm (0.00 in) | 1SM |
| | KBIL 231506Z 03010KT 1SM R10L/P6000FT -SN BR FEW005 BKN020 OVC039 M08/M10 A3010 RMK AO2 P0000 |
| 07:53 MST |  Overcast Light Snow | -8°C / 18°F | -10°C / 14°F | 86% | 1019 mb (30.09 in) | NE 26 kph (NE 16.1 mph) | 0.00 mm (0.00 in) | 2SM |
| | KBIL 231453Z 04014G18KT 2SM -SN BR SCT005 BKN020 OVC039 M08/M10 A3009 RMK AO2 SLP240 P0000 60002 T10831100 51027 |
| 06:53 MST |  Overcast Light Snow | -7°C / 19°F | -8°C / 18°F | 93% | 1018 mb (30.06 in) | ENE 26 kph (ENE 16.1 mph) | 0.25 mm (0.01 in) | 5SM |
| | KBIL 231353Z 06014KT 5SM -SN BR SCT005 BKN015 OVC036 M07/M08 A3006 RMK AO2 SLP227 P0001 T10671083 |
| 06:19 MST |  Overcast Light Snow | -6°C / 21°F | -8°C / 18°F | 86% | 1018 mb (30.06 in) | NE 15 kph (NE 9.2 mph) | 0.25 mm (0.01 in) | 3SM |
| | KBIL 231319Z 05008KT 3SM -SN BR FEW005 BKN019 OVC030 M06/M08 A3005 RMK AO2 SFC VIS 4 P0001 |
| 06:12 MST |  Overcast Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1017 mb (30.03 in) | ENE 17 kph (ENE 10.4 mph) | 0.25 mm (0.01 in) | 2SM |
| | KBIL 231312Z 06009KT 2SM -SN BR SCT003 BKN011 OVC025 M06/M07 A3004 RMK AO2 P0001 |
| 06:05 MST |  Overcast Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1017 mb (30.03 in) | ENE 13 kph (ENE 8.1 mph) | 0.25 mm (0.01 in) | 1SM |
| | KBIL 231305Z 06007KT 1SM -SN BR SCT003 BKN011 OVC018 M06/M07 A3004 RMK AO2 SFC VIS 1 1/4 P0001 |
| 05:53 MST |  Overcast Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1017 mb (30.03 in) | NE 13 kph (NE 8.1 mph) | 0.25 mm (0.01 in) | 1SM |
| | KBIL 231253Z 05007KT 1SM R10L/P6000FT -SN BR BKN003 OVC011 M06/M07 A3004 RMK AO2 CIG 002V007 SLP215 P0001 T10561072 |
| 05:50 MST |  Overcast Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1017 mb (30.03 in) | NE 11 kph (NE 6.9 mph) | 0.25 mm (0.01 in) | 1SM |
| | KBIL 231250Z 04006KT 1SM R10L/P6000FT -SN BR OVC003 M06/M07 A3004 RMK AO2 TWR VIS 4 CIG 002V007 P0001 |
| 05:35 MST |  Overcast Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1017 mb (30.03 in) | NE 17 kph (NE 10.4 mph) | 0.25 mm (0.01 in) | 5SM |
| | KBIL 231235Z 04009KT 5SM -SN BR SCT001 BKN003 OVC007 M06/M07 A3003 RMK AO2 P0001 |
| 05:25 MST |  Overcast Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1017 mb (30.03 in) | NE 15 kph (NE 9.2 mph) | 0.25 mm (0.01 in) | 4SM |
| | KBIL 231225Z 04008KT 4SM -SN BR BKN001 OVC007 M06/M07 A3002 RMK AO2 P0001 |
| 05:00 MST |  Overcast Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1016 mb (30 in) | NE 9 kph (NE 5.8 mph) | 0.00 mm (0.00 in) | 1SM |
| | KBIL 231200Z 05005KT 1SM R10L/P6000FT -SN BR BKN001 OVC007 M06/M07 A3001 RMK AO2 P0000 |
| 04:53 MST |  Overcast Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1016 mb (30 in) | NE 13 kph (NE 8.1 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KBIL 231153Z 05007KT 3/4SM R10L/2600VP6000FT -SN BR BKN001 OVC007 M06/M07 A3000 RMK AO2 SFC VIS 1 FZDZE40 SLP203 P0001 60001 70001 T10561067 11050 21056 51017 |
| 04:40 MST |  Obscured Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1016 mb (30 in) | ENE 13 kph (ENE 8.1 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBIL 231140Z 06007KT 1/2SM R10L/2800V4500FT -SN BR VV001 M06/M07 A3000 RMK AO2 SFC VIS 3/4 FZDZE40 P0000 |
| 03:53 MST |  Obscured Freezing Drizzle | -6°C / 21°F | -7°C / 19°F | 93% | 1016 mb (30 in) | NE 7 kph (NE 4.6 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBIL 231053Z 05004KT 1/2SM R10L/2200V4500FT -FZDZSN FZFG VV001 M06/M07 A2999 RMK AO2 FZDZB30 SLP199 P0000 T10561067 |
| 03:30 MST |  Obscured Freezing Drizzle | -6°C / 21°F | -7°C / 19°F | 93% | 1016 mb (30 in) | ENE 6 kph (ENE 3.5 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBIL 231030Z 07003KT 1/2SM R10L/2400V2800FT -FZDZSN FZFG VV001 M06/M07 A2999 RMK AO2 FZDZB30 P0000 |
| 02:53 MST |  Obscured Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1015 mb (29.97 in) | E 7 kph (E 4.6 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBIL 230953Z 08004KT 1/2SM R10L/2600V4500FT -SN FZFG VV001 M06/M07 A2998 RMK AO2 TWR VIS 1 FZDZE10B26E41 SLP192 P0000 T10561067 |
| 02:42 MST |  Overcast Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1015 mb (29.97 in) | E 7 kph (E 4.6 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KBIL 230942Z 08004KT 3/4SM R10L/4500VP6000FT -SN BR OVC002 M06/M07 A2997 RMK AO2 TWR VIS 1 FZDZE10B26E41 P0000 |
| 02:27 MST |  Overcast Freezing Drizzle | -6°C / 21°F | -7°C / 19°F | 93% | 1015 mb (29.97 in) | Calm | 0.00 mm (0.00 in) | 3/4SM |
| | KBIL 230927Z 00000KT 3/4SM R10L/5000VP6000FT -FZDZSN BR OVC002 M06/M07 A2997 RMK AO2 TWR VIS 1 FZDZE10B26 P0000 |
| 02:10 MST |  Overcast Light Snow | -6°C / 21°F | -7°C / 19°F | 93% | 1015 mb (29.97 in) | E 6 kph (E 3.5 mph) | 0.00 mm (0.00 in) | 3/4SM |
| | KBIL 230910Z 09003KT 3/4SM R10L/3500V4500FT -SN BR OVC002 M06/M07 A2996 RMK AO2 TWR VIS 1 FZDZE10 P0000 |
| 01:53 MST |  Overcast Freezing Drizzle | -6°C / 21°F | -7°C / 19°F | 93% | 1014 mb (29.94 in) | E 6 kph (E 3.5 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBIL 230853Z 08003KT 1/2SM R10L/2200V3000FT -FZDZSN BR OVC002 M06/M07 A2995 RMK AO2 SFC VIS 3/4 SNB03E24B47 SLP183 P0000 60000 T10561067 55000 |
| 01:24 MST |  Overcast Freezing Drizzle | -6°C / 21°F | -7°C / 19°F | 93% | 1014 mb (29.94 in) | E 6 kph (E 3.5 mph) | 0.00 mm (0.00 in) | 1SM |
| | KBIL 230824Z 10003KT 1SM R10L/5000VP6000FT -FZDZ BR OVC002 M06/M07 A2994 RMK AO2 SFC VIS 1 1/4 SNB03E24 P0000 |
| 01:00 MST |  Overcast Freezing Drizzle | -6°C / 21°F | -7°C / 19°F | 93% | 1014 mb (29.94 in) | ENE 9 kph (ENE 5.8 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBIL 230800Z 07005KT 1/2SM R10L/3500V5000FT -FZDZ BR OVC002 M06/M07 A2994 RMK AO2 SFC VIS 1 P0000 |
| 00:53 MST |  Overcast Freezing Drizzle | -6°C / 21°F | -7°C / 19°F | 93% | 1014 mb (29.94 in) | E 7 kph (E 4.6 mph) | 0.00 mm (0.00 in) | 1SM |
| | KBIL 230753Z 08004KT 1SM R10L/3500V5500FT -FZDZ BR OVC002 M06/M07 A2994 RMK AO2 SNE43 SLP181 P0000 T10561067 |