| 12:55 EST |  Clear | 12°C / 54°F | -1°C / 30°F | 41% | 1017 mb (30.03 in) | SSW 26 kph (SSW 16.1 mph) | - | 10SM |
| | KMTN 011755Z 26014G19KT 10SM SKC 12/M01 A3002 |
| 11:59 EST |  Clear | 10°C / 50°F | -1°C / 30°F | 47% | 1017 mb (30.03 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KMTN 011659Z 24007G14KT 10SM SKC 10/M01 A3004 |
| 10:55 EST |  Clear | 8°C / 46°F | -1°C / 30°F | 53% | 1018 mb (30.06 in) | SW 17 kph (SW 10.4 mph) | - | 10SM |
| | KMTN 011555Z 21009KT 10SM SKC 08/M01 A3006 |
| 09:55 EST |  Clear | 7°C / 45°F | -1°C / 30°F | 57% | 1018 mb (30.06 in) | S 13 kph (S 8.1 mph) | - | 10SM |
| | KMTN 011455Z 19007KT 10SM SKC 07/M01 A3007 |
| 08:59 EST |  Clear | 6°C / 43°F | -2°C / 28°F | 57% | 1018 mb (30.06 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KMTN 011359Z 21004KT 10SM SKC 06/M02 A3007 |
| 07:55 EST |  Clear | 4°C / 39°F | -2°C / 28°F | 65% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KMTN 011255Z 00000KT 10SM SKC 04/M02 A3006 |
| 06:45 EST |  Clear | 3°C / 37°F | -3°C / 27°F | 65% | 1017 mb (30.03 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KMTN 011145Z 22004KT 10SM SKC 03/M03 A3004 |
| 05:55 EST |  Clear | 3°C / 37°F | -3°C / 27°F | 65% | 1017 mb (30.03 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KMTN 011055Z 24003KT 10SM SKC 03/M03 A3003 RMK FIRST |
| 04:30 EST |  Clear | 3°C / 37°F | -3°C / 27°F | 65% | 1016 mb (30 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KMTN 010930Z AUTO 22003KT 10SM CLR 03/M03 A3000 RMK AO2 |
| 04:15 EST |  Clear | 3°C / 37°F | -3°C / 27°F | 65% | 1016 mb (30 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KMTN 010915Z AUTO 23005KT 10SM CLR 03/M03 A3001 RMK AO2 |
| 03:54 EST |  Clear | 3°C / 37°F | -2°C / 28°F | 70% | 1016 mb (30 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KMTN 010854Z AUTO 24004KT 10SM CLR 03/M02 A3000 RMK AO2 |
| 03:33 EST |  Clear | 3°C / 37°F | -2°C / 28°F | 70% | 1016 mb (30 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KMTN 010833Z AUTO 24006KT 10SM CLR 03/M02 A2999 RMK AO2 |
| 03:12 EST |  Clear | 3°C / 37°F | -2°C / 28°F | 70% | 1016 mb (30 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KMTN 010812Z AUTO 25006KT 10SM CLR 03/M02 A2999 RMK AO2 |
| 02:48 EST |  Clear | 3°C / 37°F | -2°C / 28°F | 70% | 1016 mb (30 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KMTN 010748Z AUTO 26008KT 10SM CLR 03/M02 A2999 RMK AO2 |
| 02:27 EST |  Clear | 3°C / 37°F | -2°C / 28°F | 70% | 1015 mb (29.97 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KMTN 010727Z AUTO 25006KT 10SM CLR 03/M02 A2998 RMK AO2 |
| 02:06 EST |  Partly Cloudy | 4°C / 39°F | -2°C / 28°F | 65% | 1015 mb (29.97 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KMTN 010706Z AUTO 26010KT 10SM SCT065 04/M02 A2998 RMK AO2 |
| 01:45 EST |  Partly Cloudy | 4°C / 39°F | -2°C / 28°F | 65% | 1015 mb (29.97 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KMTN 010645Z AUTO 26008KT 10SM SCT065 04/M02 A2997 RMK AO2 |
| 01:24 EST |  Clear | 4°C / 39°F | -2°C / 28°F | 65% | 1015 mb (29.97 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KMTN 010624Z AUTO 25008KT 10SM CLR 04/M02 A2996 RMK AO2 |
| 01:03 EST |  Partly Cloudy | 4°C / 39°F | -2°C / 28°F | 65% | 1014 mb (29.94 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KMTN 010603Z AUTO 26010KT 10SM SCT065 04/M02 A2995 RMK AO2 |
| 00:39 EST |  Partly Cloudy | 5°C / 41°F | -2°C / 28°F | 61% | 1014 mb (29.94 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KMTN 010539Z AUTO 26009G16KT 10SM SCT065 05/M02 A2994 RMK AO2 |
| 00:18 EST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1014 mb (29.94 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KMTN 010518Z AUTO 26010KT 10SM CLR 04/M01 A2994 RMK AO2 |