| 07:35 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1008 mb (29.77 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KGPZ 301335Z AUTO 21005KT 10SM OVC070 M03/M06 A2976 RMK AO1 |
| 07:15 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1007 mb (29.74 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KGPZ 301315Z AUTO 19005KT 10SM OVC070 M03/M06 A2975 RMK AO1 |
| 06:55 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1008 mb (29.77 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KGPZ 301255Z AUTO 18006KT 10SM BKN070 OVC090 M03/M06 A2976 RMK AO1 |
| 06:35 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1008 mb (29.77 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KGPZ 301235Z AUTO 16005KT 10SM SCT090 OVC120 M03/M06 A2976 RMK AO1 |
| 06:15 CST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1008 mb (29.77 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KGPZ 301215Z AUTO 18004KT 10SM OVC110 M03/M06 A2978 RMK AO1 |
| 05:55 CST |  Partly Cloudy | -4°C / 25°F | -6°C / 21°F | 86% | 1008 mb (29.77 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KGPZ 301155Z AUTO 17005KT 10SM SCT100 M04/M06 A2978 RMK AO1 11010 21040 57024 |
| 05:35 CST |  Partly Cloudy | -4°C / 25°F | -6°C / 21°F | 86% | 1009 mb (29.8 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KGPZ 301135Z AUTO 18005KT 10SM FEW120 M04/M06 A2979 RMK AO1 |
| 05:15 CST |  Partly Cloudy | -3°C / 27°F | -6°C / 21°F | 80% | 1009 mb (29.8 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KGPZ 301115Z AUTO 18004KT 10SM FEW120 M03/M06 A2980 RMK AO1 |
| 04:55 CST |  Partly Cloudy | -3°C / 27°F | -6°C / 21°F | 80% | 1009 mb (29.8 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KGPZ 301055Z AUTO 18005KT 10SM SCT120 M03/M06 A2981 RMK AO1 |
| 04:35 CST |  Mostly Cloudy | -3°C / 27°F | -6°C / 21°F | 80% | 1010 mb (29.83 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KGPZ 301035Z AUTO 19005KT 10SM BKN120 M03/M06 A2982 RMK AO1 |
| 04:15 CST |  Partly Cloudy | -3°C / 27°F | -6°C / 21°F | 80% | 1010 mb (29.83 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KGPZ 301015Z AUTO 20004KT 10SM FEW120 M03/M06 A2983 RMK AO1 |
| 03:55 CST |  Clear | -2°C / 28°F | -5°C / 23°F | 80% | 1010 mb (29.83 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KGPZ 300955Z AUTO 20005KT 10SM CLR M02/M05 A2983 RMK AO1 |
| 03:35 CST |  Clear | -2°C / 28°F | -5°C / 23°F | 80% | 1010 mb (29.83 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KGPZ 300935Z AUTO 21006KT 10SM CLR M02/M05 A2984 RMK AO1 |
| 03:15 CST |  Clear | -2°C / 28°F | -5°C / 23°F | 80% | 1011 mb (29.85 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KGPZ 300915Z AUTO 21005KT 10SM CLR M02/M05 A2985 RMK AO1 |
| 02:55 CST |  Clear | -2°C / 28°F | -5°C / 23°F | 80% | 1011 mb (29.85 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KGPZ 300855Z AUTO 22006KT 10SM CLR M02/M05 A2985 RMK AO1 57014 |
| 02:35 CST |  Clear | -2°C / 28°F | -5°C / 23°F | 80% | 1011 mb (29.85 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KGPZ 300835Z AUTO 20006KT 10SM CLR M02/M05 A2986 RMK AO1 |
| 02:15 CST |  Clear | -2°C / 28°F | -5°C / 23°F | 80% | 1011 mb (29.85 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KGPZ 300815Z AUTO 19006KT 10SM CLR M02/M05 A2986 RMK AO1 |
| 01:55 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1011 mb (29.85 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KGPZ 300755Z AUTO 20005KT 10SM CLR M02/M04 A2986 RMK AO1 |
| 01:35 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1012 mb (29.88 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KGPZ 300735Z AUTO 20006KT 10SM CLR M02/M04 A2987 RMK AO1 |
| 01:15 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1012 mb (29.88 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KGPZ 300715Z AUTO 20005KT 10SM CLR M02/M04 A2987 RMK AO1 |
| 00:55 CST |  Clear | -1°C / 30°F | -4°C / 25°F | 80% | 1012 mb (29.88 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KGPZ 300655Z AUTO 20005KT 10SM CLR M01/M04 A2988 RMK AO1 |
| 00:35 CST |  Clear | -1°C / 30°F | -4°C / 25°F | 80% | 1012 mb (29.88 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KGPZ 300635Z AUTO 21005KT 10SM CLR M01/M04 A2989 RMK AO1 |
| 00:15 CST |  Clear | -1°C / 30°F | -4°C / 25°F | 80% | 1012 mb (29.88 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KGPZ 300615Z AUTO 22005KT 10SM CLR M01/M04 A2989 RMK AO1 |