| 01:55 CST |  Partly Cloudy | -13°C / 9°F | -16°C / 3°F | 78% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KTOB 120755Z AUTO 00000KT 10SM SCT100 M13/M16 A3004 RMK AO2 |
| 01:34 CST |  Partly Cloudy | -13°C / 9°F | -16°C / 3°F | 78% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KTOB 120734Z AUTO 00000KT 10SM SCT090 M13/M16 A3004 RMK AO2 |
| 01:14 CST |  Partly Cloudy | -13°C / 9°F | -16°C / 3°F | 78% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KTOB 120714Z AUTO 00000KT 10SM SCT090 M13/M16 A3004 RMK AO2 |
| 00:55 CST |  Partly Cloudy | -13°C / 9°F | -16°C / 3°F | 78% | 1017 mb (30.03 in) | SSE 24 kph (SSE 15 mph) | - | 10SM |
| | KTOB 120655Z AUTO 20013KT 10SM SCT090 M13/M16 A3004 RMK AO2 |
| 00:34 CST |  Clear | -14°C / 7°F | -17°C / 1°F | 78% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KTOB 120634Z AUTO 00000KT 10SM CLR M14/M17 A3005 RMK AO2 |
| 00:15 CST |  Partly Cloudy | -13°C / 9°F | -16°C / 3°F | 78% | 1018 mb (30.06 in) | SSE 20 kph (SSE 12.7 mph) | - | 10SM |
| | KTOB 120615Z AUTO 20011KT 10SM SCT090 M13/M16 A3005 RMK AO2 |