| 12:45 CST |  Overcast Light Snow | -3°C / 27°F | -5°C / 23°F | 86% | 1017 mb (30.03 in) | ENE 17 kph (ENE 10.4 mph) | - | 1 1/2SM |
| | KATW 081845Z 06009KT 1 1/2SM -SN OVC010 M03/M05 A3004 M |
| 10:45 CST |  Overcast Light Snow | -4°C / 25°F | -6°C / 21°F | 86% | 1021 mb (30.15 in) | ENE 13 kph (ENE 8.1 mph) | - | 1SM |
| | KATW 081645Z 06007KT 1SM -SN OVC008 M04/M06 A3016 |
| 10:15 CST |  Overcast Light Snow | -4°C / 25°F | -6°C / 21°F | 86% | 1022 mb (30.18 in) | ENE 11 kph (ENE 6.9 mph) | - | 1SM |
| | KATW 081615Z 06006KT 1SM -SN OVC008 M04/M06 A3018 |
| 09:45 CST |  Overcast Light Snow | -4°C / 25°F | -6°C / 21°F | 86% | 1022 mb (30.18 in) | ENE 11 kph (ENE 6.9 mph) | - | 2SM |
| | KATW 081545Z 07006KT 2SM -SN BKN019 OVC030 M04/M06 A3019 |
| 09:08 CST |  Overcast Light Snow | -4°C / 25°F | -8°C / 18°F | 74% | 1023 mb (30.21 in) | E 11 kph (E 6.9 mph) | - | 4SM |
| | KATW 081508Z 08006KT 4SM -SN BKN025 OVC030 M04/M08 A3020 |
| 08:45 CST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1023 mb (30.21 in) | ENE 9 kph (ENE 5.8 mph) | - | 10SM |
| | KATW 081445Z 07005KT 10SM BKN035 OVC042 M04/M08 A3020 |
| 07:45 CST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 1023 mb (30.21 in) | ENE 9 kph (ENE 5.8 mph) | - | 10SM |
| | KATW 081345Z 06005KT 10SM OVC040 M05/M08 A3021 |
| 06:45 CST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1023 mb (30.21 in) | ENE 11 kph (ENE 6.9 mph) | - | 10SM |
| | KATW 081245Z 06006KT 10SM OVC060 M06/M08 A3022 |
| 05:45 CST |  Overcast | -6°C / 21°F | -9°C / 16°F | 80% | 1024 mb (30.24 in) | ENE 11 kph (ENE 6.9 mph) | - | 10SM |
| | KATW 081145Z 06006KT 10SM OVC090 M06/M09 A3023 |
| 05:15 CST |  Mostly Cloudy | -6°C / 21°F | -9°C / 16°F | 80% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KATW 081115Z 00000KT 10SM BKN100 M06/M09 A3023 |
| 04:16 CST |  Mostly Cloudy | -6°C / 21°F | -9°C / 16°F | 80% | 1024 mb (30.24 in) | NE 6 kph (NE 3.5 mph) | - | 10SM |
| | KATW 081016Z AUTO 05003KT 10SM BKN110 M06/M09 A3024 RMK AO2 |
| 03:56 CST |  Mostly Cloudy | -6°C / 21°F | -9°C / 16°F | 80% | 1024 mb (30.24 in) | NE 9 kph (NE 5.8 mph) | - | 10SM |
| | KATW 080956Z AUTO 05005KT 10SM BKN110 M06/M09 A3024 RMK AO2 |
| 03:36 CST |  Partly Cloudy | -6°C / 21°F | -9°C / 16°F | 80% | 1024 mb (30.24 in) | ENE 6 kph (ENE 3.5 mph) | - | 10SM |
| | KATW 080936Z AUTO 06003KT 10SM SCT110 M06/M09 A3024 RMK AO2 |
| 03:16 CST |  Clear | -6°C / 21°F | -9°C / 16°F | 80% | 1024 mb (30.24 in) | NE 7 kph (NE 4.6 mph) | - | 10SM |
| | KATW 080916Z AUTO 03004KT 10SM CLR M06/M09 A3025 RMK AO2 |
| 02:56 CST |  Clear | -6°C / 21°F | -9°C / 16°F | 80% | 1024 mb (30.24 in) | NE 9 kph (NE 5.8 mph) | - | 10SM |
| | KATW 080856Z AUTO 03005KT 10SM CLR M06/M09 A3025 RMK AO2 |
| 02:36 CST |  Clear | -7°C / 19°F | -9°C / 16°F | 86% | 1025 mb (30.27 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KATW 080836Z AUTO 01004KT 10SM CLR M07/M09 A3026 RMK AO2 |
| 02:16 CST |  Clear | -7°C / 19°F | -9°C / 16°F | 86% | 1025 mb (30.27 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KATW 080816Z AUTO 36004KT 10SM CLR M07/M09 A3026 RMK AO2 |
| 01:56 CST |  Clear | -7°C / 19°F | -9°C / 16°F | 86% | 1025 mb (30.27 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KATW 080756Z AUTO 36003KT 10SM CLR M07/M09 A3026 RMK AO2 |
| 01:36 CST |  Clear | -7°C / 19°F | -10°C / 14°F | 79% | 1024 mb (30.24 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KATW 080736Z AUTO 36004KT 10SM CLR M07/M10 A3025 RMK AO2 |
| 01:16 CST |  Clear | -8°C / 18°F | -10°C / 14°F | 86% | 1024 mb (30.24 in) | N 9 kph (N 5.8 mph) | - | 10SM |
| | KATW 080716Z AUTO 36005KT 10SM CLR M08/M10 A3024 RMK AO2 |
| 00:56 CST |  Clear | -7°C / 19°F | -10°C / 14°F | 79% | 1024 mb (30.24 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KATW 080656Z AUTO 35004KT 10SM CLR M07/M10 A3025 RMK AO2 |
| 00:36 CST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1024 mb (30.24 in) | NNW 7 kph (NNW 4.6 mph) | - | 10SM |
| | KATW 080636Z AUTO 33004KT 10SM CLR M08/M11 A3025 RMK AO2 |
| 00:16 CST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1024 mb (30.24 in) | NNW 9 kph (NNW 5.8 mph) | - | 10SM |
| | KATW 080616Z AUTO 33005KT 10SM CLR M08/M11 A3024 RMK AO2 |