| 13:45 CST |  Partly Cloudy | 20°C / 68°F | 13°C / 55°F | 64% | 1010 mb (29.83 in) | S 32 kph (S 19.6 mph) | - | 10SM |
| | KGTU 221945Z 19017G22KT 10SM SCT030 20/13 A2984 |
| 12:49 CST |  Partly Cloudy | 19°C / 66°F | 13°C / 55°F | 68% | 1012 mb (29.88 in) | S 30 kph (S 18.4 mph) | - | 10SM |
| | KGTU 221849Z 19016KT 10SM FEW023 19/13 A2988 |
| 11:45 CST |  Partly Cloudy | 18°C / 64°F | 12°C / 54°F | 68% | 1014 mb (29.94 in) | SSE 32 kph (SSE 19.6 mph) | - | 10SM |
| | KGTU 221745Z 20017G24KT 10SM SCT018 18/12 A2994 |
| 10:49 CST |  Overcast | 17°C / 63°F | 12°C / 54°F | 73% | 1015 mb (29.97 in) | SSE 28 kph (SSE 17.3 mph) | - | 10SM |
| | KGTU 221649Z 20015G21KT 10SM OVC012 17/12 A2996 |
| 09:50 CST |  Overcast | 16°C / 61°F | 12°C / 54°F | 77% | 1015 mb (29.97 in) | SSE 30 kph (SSE 18.4 mph) | - | 10SM |
| | KGTU 221550Z 20016G24KT 10SM OVC010 16/12 A2997 |
| 08:50 CST |  Overcast | 16°C / 61°F | 12°C / 54°F | 77% | 1015 mb (29.97 in) | S 26 kph (S 16.1 mph) | - | 10SM |
| | KGTU 221450Z 19014G20KT 10SM OVC010 16/12 A2997 |
| 07:48 CST |  Overcast | 14°C / 57°F | 12°C / 54°F | 88% | 1015 mb (29.97 in) | S 20 kph (S 12.7 mph) | - | 10SM |
| | KGTU 221348Z 19011G14KT 10SM OVC010 14/12 A2996 |
| 06:50 CST |  Overcast | 14°C / 57°F | 11°C / 52°F | 82% | 1015 mb (29.97 in) | S 17 kph (S 10.4 mph) | - | 10SM |
| | KGTU 221250Z 19009KT 10SM OVC008 14/11 A2997 RMK FIRST |
| 06:35 CST |  Overcast | 13°C / 55°F | 11°C / 52°F | 88% | 1015 mb (29.97 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KGTU 221235Z 20009KT 10SM OVC008 13/11 A2997 RMK AO1 |
| 06:15 CST |  Overcast | 13°C / 55°F | 11°C / 52°F | 88% | 1015 mb (29.97 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KGTU 221215Z 20009KT 10SM OVC008 13/11 A2997 RMK AO1 |
| 05:55 CST |  Overcast | 13°C / 55°F | 11°C / 52°F | 88% | 1015 mb (29.97 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KGTU 221155Z 20008KT 10SM BKN010 OVC015 13/11 A2997 RMK AO1 10130 20120 57007 |
| 05:35 CST |  Partly Cloudy | 12°C / 54°F | 11°C / 52°F | 94% | 1015 mb (29.97 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KGTU 221135Z 20006KT 10SM SCT010 SCT015 12/11 A2997 RMK AO1 |
| 05:15 CST |  Partly Cloudy | 12°C / 54°F | 11°C / 52°F | 94% | 1015 mb (29.97 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KGTU 221115Z 19005KT 10SM FEW016 12/11 A2997 RMK AO1 |
| 04:55 CST |  Partly Cloudy | 12°C / 54°F | 10°C / 50°F | 88% | 1015 mb (29.97 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KGTU 221055Z 19006KT 10SM FEW016 SCT022 12/10 A2997 RMK AO1 |
| 04:35 CST |  Partly Cloudy | 12°C / 54°F | 10°C / 50°F | 88% | 1015 mb (29.97 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KGTU 221035Z 19006KT 10SM SCT018 SCT023 12/10 A2997 RMK AO1 |
| 04:15 CST |  Clear | 12°C / 54°F | 9°C / 48°F | 82% | 1015 mb (29.97 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KGTU 221015Z 21006KT 10SM CLR 12/09 A2998 RMK AO1 |
| 03:55 CST |  Clear | 12°C / 54°F | 10°C / 50°F | 88% | 1015 mb (29.97 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KGTU 220955Z 19006KT 10SM CLR 12/10 A2998 RMK AO1 |
| 03:35 CST |  Partly Cloudy | 13°C / 55°F | 10°C / 50°F | 82% | 1015 mb (29.97 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KGTU 220935Z 19006KT 10SM FEW018 13/10 A2998 RMK AO1 |
| 03:15 CST |  Mostly Cloudy | 13°C / 55°F | 10°C / 50°F | 82% | 1016 mb (30 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KGTU 220915Z 19005KT 10SM SCT018 BKN024 13/10 A2999 RMK AO1 |
| 02:55 CST |  Mostly Cloudy | 12°C / 54°F | 9°C / 48°F | 82% | 1016 mb (30 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KGTU 220855Z 20006KT 10SM BKN018 BKN026 12/09 A2999 RMK AO1 57017 |
| 02:35 CST |  Partly Cloudy | 13°C / 55°F | 10°C / 50°F | 82% | 1016 mb (30 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KGTU 220835Z 20006KT 10SM SCT018 13/10 A3000 RMK AO1 |
| 02:15 CST |  Clear | 13°C / 55°F | 10°C / 50°F | 82% | 1016 mb (30 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KGTU 220815Z 20006KT 10SM CLR 13/10 A3001 RMK AO1 |
| 01:55 CST |  Partly Cloudy | 13°C / 55°F | 9°C / 48°F | 77% | 1016 mb (30 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KGTU 220755Z 20008KT 10SM FEW020 13/09 A3001 RMK AO1 |
| 01:35 CST |  Partly Cloudy | 13°C / 55°F | 9°C / 48°F | 77% | 1017 mb (30.03 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KGTU 220735Z 20005KT 10SM FEW022 13/09 A3002 RMK AO1 |
| 01:15 CST |  Partly Cloudy | 13°C / 55°F | 9°C / 48°F | 77% | 1017 mb (30.03 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KGTU 220715Z 20006KT 10SM FEW022 13/09 A3002 RMK AO1 |
| 00:55 CST |  Partly Cloudy | 13°C / 55°F | 9°C / 48°F | 77% | 1017 mb (30.03 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KGTU 220655Z 20006KT 10SM FEW026 FEW031 13/09 A3002 RMK AO1 |
| 00:35 CST |  Mostly Cloudy | 13°C / 55°F | 9°C / 48°F | 77% | 1017 mb (30.03 in) | S 13 kph (S 8.1 mph) | - | 10SM |
| | KGTU 220635Z 19007KT 10SM SCT030 BKN035 13/09 A3003 RMK AO1 |
| 00:15 CST |  Partly Cloudy | 13°C / 55°F | 9°C / 48°F | 77% | 1017 mb (30.03 in) | S 13 kph (S 8.1 mph) | - | 10SM |
| | KGTU 220615Z 19007KT 10SM SCT031 13/09 A3003 RMK AO1 |