| 07:55 CST |  Overcast | -8°C / 18°F | -10°C / 14°F | 86% | 1018 mb (30.06 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KEFT 041355Z AUTO 24008G15KT 10SM OVC017 M08/M10 A3007 RMK AO2 |
| 07:35 CST |  Overcast | -7°C / 19°F | -10°C / 14°F | 79% | 1018 mb (30.06 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KEFT 041335Z AUTO 25008KT 10SM OVC017 M07/M10 A3007 RMK AO2 |
| 07:15 CST |  Overcast Light Snow | -7°C / 19°F | -9°C / 16°F | 86% | 1018 mb (30.06 in) | SSW 24 kph (SSW 15 mph) | - | 10SM |
| | KEFT 041315Z AUTO 26013G19KT 10SM -SN OVC017 M07/M09 A3007 RMK AO2 |
| 06:55 CST |  Overcast Light Snow | -7°C / 19°F | -9°C / 16°F | 86% | 1018 mb (30.06 in) | SSW 24 kph (SSW 15 mph) | - | 10SM |
| | KEFT 041255Z AUTO 26013G19KT 10SM -SN OVC017 M07/M09 A3007 RMK AO2 |
| 06:35 CST |  Overcast | -6°C / 21°F | -9°C / 16°F | 80% | 1018 mb (30.06 in) | SSW 24 kph (SSW 15 mph) | - | 10SM |
| | KEFT 041235Z AUTO 25013G21KT 10SM OVC019 M06/M09 A3006 RMK AO2 |
| 06:15 CST |  Overcast | -6°C / 21°F | -9°C / 16°F | 80% | 1018 mb (30.06 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KEFT 041215Z AUTO 26009G16KT 10SM OVC021 M06/M09 A3006 RMK AO2 |
| 05:55 CST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1018 mb (30.06 in) | SSW 20 kph (SSW 12.7 mph) | - | 10SM |
| | KEFT 041155Z AUTO 25011G16KT 10SM SCT016 BKN023 OVC028 M06/M08 A3005 RMK AO2 |
| 05:35 CST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1018 mb (30.06 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KEFT 041135Z AUTO 25010G16KT 10SM SCT016 OVC028 M06/M08 A3005 RMK AO2 |
| 05:15 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1018 mb (30.06 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KEFT 041115Z AUTO 25006KT 10SM -SN SCT017 OVC028 M05/M07 A3005 RMK AO2 |
| 04:55 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1018 mb (30.06 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KEFT 041055Z AUTO 25007KT 10SM -SN SCT017 OVC026 M05/M07 A3005 RMK AO2 |
| 04:35 CST |  Overcast | -5°C / 23°F | -7°C / 19°F | 86% | 1018 mb (30.06 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KEFT 041035Z AUTO 26008KT 10SM OVC028 M05/M07 A3005 RMK AO2 |
| 04:15 CST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1018 mb (30.06 in) | W 17 kph (W 10.4 mph) | - | 10SM |
| | KEFT 041015Z AUTO 28009KT 10SM OVC032 M06/M08 A3005 RMK AO2 |
| 03:55 CST |  Overcast Light Snow | -6°C / 21°F | -8°C / 18°F | 86% | 1018 mb (30.06 in) | W 20 kph (W 12.7 mph) | - | 10SM |
| | KEFT 040955Z AUTO 27011G16KT 10SM -SN SCT024 SCT029 OVC034 M06/M08 A3005 RMK AO2 |
| 03:35 CST |  Overcast Light Snow | -6°C / 21°F | -8°C / 18°F | 86% | 1018 mb (30.06 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KEFT 040935Z AUTO 27010G16KT 10SM -SN OVC027 M06/M08 A3005 RMK AO2 |
| 03:15 CST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1018 mb (30.06 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KEFT 040915Z AUTO 27010G15KT 10SM OVC027 M06/M08 A3005 RMK AO2 |
| 02:55 CST |  Mostly Cloudy | -6°C / 21°F | -8°C / 18°F | 86% | 1018 mb (30.06 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KEFT 040855Z AUTO 27010KT 10SM BKN023 BKN035 M06/M08 A3005 RMK AO2 |
| 02:35 CST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1017 mb (30.03 in) | W 20 kph (W 12.7 mph) | - | 10SM |
| | KEFT 040835Z AUTO 27011G20KT 10SM BKN016 OVC033 M06/M08 A3004 RMK AO2 |
| 02:15 CST |  Overcast | -5°C / 23°F | -7°C / 19°F | 86% | 1017 mb (30.03 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KEFT 040815Z AUTO 27010G19KT 10SM OVC016 M05/M07 A3004 RMK AO2 |
| 01:55 CST |  Overcast Light Snow | -5°C / 23°F | -7°C / 19°F | 86% | 1017 mb (30.03 in) | SSW 20 kph (SSW 12.7 mph) | - | 10SM |
| | KEFT 040755Z AUTO 26011G16KT 10SM -SN BKN016 OVC031 M05/M07 A3004 RMK AO2 |
| 01:35 CST |  Overcast Light Snow | -5°C / 23°F | -6°C / 21°F | 93% | 1017 mb (30.03 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KEFT 040735Z AUTO 26009G17KT 10SM -SN BKN031 OVC095 M05/M06 A3003 RMK AO2 |
| 01:15 CST |  Overcast Light Snow | -4°C / 25°F | -6°C / 21°F | 86% | 1017 mb (30.03 in) | W 22 kph (W 13.8 mph) | - | 7SM |
| | KEFT 040715Z AUTO 27012G17KT 7SM -SN SCT029 OVC095 M04/M06 A3002 RMK AO2 |
| 00:35 CST |  Overcast Light Snow | -4°C / 25°F | -5°C / 23°F | 93% | 1016 mb (30 in) | SSW 20 kph (SSW 12.7 mph) | - | 3SM |
| | KEFT 040635Z AUTO 26011KT 3SM -SN SCT033 BKN042 OVC060 M04/M05 A3001 RMK AO2 |
| 00:15 CST |  Overcast Light Snow | -4°C / 25°F | -5°C / 23°F | 93% | 1016 mb (30 in) | W 17 kph (W 10.4 mph) | - | 5SM |
| | KEFT 040615Z AUTO 27009KT 5SM -SN SCT038 BKN045 OVC070 M04/M05 A3001 RMK AO2 |