| 04:15 CST |  Overcast | 1°C / 34°F | 0°C / 32°F | 93% | 1014 mb (29.94 in) | NW 22 kph (NW 13.8 mph) | - | 4SM |
| | KOTG 291015Z AUTO 32012KT 4SM OVC004 01/00 A2993 RMK AO1 |
| 03:55 CST |  Overcast | 1°C / 34°F | 1°C / 34°F | 100% | 1014 mb (29.94 in) | NNW 26 kph (NNW 16.1 mph) | - | 3SM |
| | KOTG 290955Z AUTO 33014KT 3SM OVC004 01/01 A2993 RMK AO1 |
| 03:35 CST |  Overcast | 1°C / 34°F | 1°C / 34°F | 100% | 1014 mb (29.94 in) | NNW 24 kph (NNW 15 mph) | - | 4SM |
| | KOTG 290935Z AUTO 33013KT 4SM OVC003 01/01 A2993 RMK AO1 |
| 03:15 CST |  Overcast | 1°C / 34°F | 0°C / 32°F | 93% | 1013 mb (29.91 in) | NNW 19 kph (NNW 11.5 mph) | - | 5SM |
| | KOTG 290915Z AUTO 33010KT 5SM OVC003 01/00 A2992 RMK AO1 |
| 02:55 CST |  Overcast | 1°C / 34°F | 0°C / 32°F | 93% | 1013 mb (29.91 in) | NNW 20 kph (NNW 12.7 mph) | - | 5SM |
| | KOTG 290855Z AUTO 33011KT 5SM OVC004 01/00 A2992 RMK AO1 52010 |
| 02:35 CST |  Overcast | 1°C / 34°F | 0°C / 32°F | 93% | 1013 mb (29.91 in) | NNW 19 kph (NNW 11.5 mph) | - | 5SM |
| | KOTG 290835Z AUTO 33010KT 5SM OVC005 01/00 A2992 RMK AO1 |
| 02:15 CST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1013 mb (29.91 in) | NNW 19 kph (NNW 11.5 mph) | - | 5SM |
| | KOTG 290815Z AUTO 33010KT 5SM OVC005 00/M01 A2991 RMK AO1 |
| 01:55 CST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1013 mb (29.91 in) | NNW 24 kph (NNW 15 mph) | - | 7SM |
| | KOTG 290755Z AUTO 33013KT 7SM OVC005 00/M01 A2991 RMK AO1 |
| 01:35 CST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1013 mb (29.91 in) | NNW 22 kph (NNW 13.8 mph) | - | 7SM |
| | KOTG 290735Z AUTO 33012KT 7SM OVC006 00/M01 A2990 RMK AO1 |
| 01:15 CST |  Overcast | -1°C / 30°F | -1°C / 30°F | 100% | 1013 mb (29.91 in) | NNW 20 kph (NNW 12.7 mph) | - | 8SM |
| | KOTG 290715Z AUTO 33011KT 8SM SCT007 OVC085 M01/M01 A2990 RMK AO1 |
| 00:55 CST |  Partly Cloudy | -1°C / 30°F | -1°C / 30°F | 100% | 1012 mb (29.88 in) | NNW 22 kph (NNW 13.8 mph) | - | 9SM |
| | KOTG 290655Z AUTO 34012KT 9SM SCT085 M01/M01 A2989 RMK AO1 |
| 00:35 CST |  Clear | -1°C / 30°F | -2°C / 28°F | 93% | 1012 mb (29.88 in) | NNW 22 kph (NNW 13.8 mph) | - | 10SM |
| | KOTG 290635Z AUTO 34012KT 10SM CLR M01/M02 A2989 RMK AO1 |
| 00:15 CST |  Clear | -1°C / 30°F | -2°C / 28°F | 93% | 1012 mb (29.88 in) | NNW 22 kph (NNW 13.8 mph) | - | 10SM |
| | KOTG 290615Z AUTO 34012KT 10SM CLR M01/M02 A2989 RMK AO1 |