| 07:35 CST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1005 mb (29.68 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KHCO 301335Z AUTO 21005KT 10SM OVC100 M01/M02 A2967 RMK AO2 |
| 07:14 CST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1005 mb (29.68 in) | SW 13 kph (SW 8.1 mph) | - | 10SM |
| | KHCO 301314Z AUTO 22007KT 10SM SCT060 OVC090 M01/M02 A2968 RMK AO2 |
| 06:55 CST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1005 mb (29.68 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KHCO 301255Z AUTO 22006KT 10SM OVC060 M01/M02 A2969 RMK AO2 |
| 06:34 CST |  Overcast | -2°C / 28°F | -2°C / 28°F | 100% | 1006 mb (29.71 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KHCO 301234Z AUTO 23006KT 10SM BKN060 OVC110 M02/M02 A2971 RMK AO2 |
| 06:14 CST |  Overcast | -2°C / 28°F | -2°C / 28°F | 100% | 1006 mb (29.71 in) | SSE 13 kph (SSE 8.1 mph) | - | 10SM |
| | KHCO 301214Z AUTO 20007KT 10SM SCT070 OVC110 M02/M02 A2970 RMK AO2 |
| 05:54 CST |  Partly Cloudy | -2°C / 28°F | -3°C / 27°F | 93% | 1006 mb (29.71 in) | SSE 13 kph (SSE 8.1 mph) | - | 10SM |
| | KHCO 301154Z AUTO 20007KT 10SM SCT070 120 M02/M03 A2971 RMK AO2 |
| 05:34 CST |  Partly Cloudy | -2°C / 28°F | -3°C / 27°F | 93% | 1006 mb (29.71 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KHCO 301134Z AUTO 20008KT 10SM SCT080 120 M02/M03 A2971 RMK AO2 |
| 05:14 CST |  Mostly Cloudy | -3°C / 27°F | -3°C / 27°F | 100% | 1006 mb (29.71 in) | SW 17 kph (SW 10.4 mph) | - | 10SM |
| | KHCO 301114Z AUTO 21009KT 10SM BKN080 M03/M03 A2971 RMK AO2 |
| 04:55 CST |  Partly Cloudy | -3°C / 27°F | -3°C / 27°F | 100% | 1006 mb (29.71 in) | S 13 kph (S 8.1 mph) | - | 10SM |
| | KHCO 301055Z AUTO 19007KT 10SM SCT080 M03/M03 A2972 RMK AO2 |
| 04:35 CST |  Mostly Cloudy | -3°C / 27°F | -3°C / 27°F | 100% | 1007 mb (29.74 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KHCO 301035Z AUTO 18005KT 10SM SCT055 BKN080 M03/M03 A2973 RMK AO2 |
| 04:14 CST |  Overcast | -2°C / 28°F | -3°C / 27°F | 93% | 1007 mb (29.74 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KHCO 301014Z AUTO 18006KT 10SM OVC055 M02/M03 A2975 RMK AO2 |
| 03:54 CST |  Overcast | -3°C / 27°F | -3°C / 27°F | 100% | 1008 mb (29.77 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KHCO 300954Z AUTO 20006KT 10SM OVC055 M03/M03 A2977 RMK AO2 |
| 03:34 CST |  Overcast | -3°C / 27°F | -3°C / 27°F | 100% | 1008 mb (29.77 in) | S 15 kph (S 9.2 mph) | - | 10SM |
| | KHCO 300934Z AUTO 18008KT 10SM OVC065 M03/M03 A2976 RMK AO2 |
| 03:14 CST |  Overcast | -3°C / 27°F | -3°C / 27°F | 100% | 1008 mb (29.77 in) | S 13 kph (S 8.1 mph) | - | 10SM |
| | KHCO 300914Z AUTO 18007KT 10SM OVC065 M03/M03 A2978 RMK AO2 |
| 02:55 CST |  Overcast | -3°C / 27°F | -4°C / 25°F | 93% | 1009 mb (29.8 in) | S 13 kph (S 8.1 mph) | - | 10SM |
| | KHCO 300855Z AUTO 17007KT 10SM BKN065 OVC080 M03/M04 A2979 RMK AO2 |
| 02:34 CST |  Overcast | -4°C / 25°F | -4°C / 25°F | 100% | 1009 mb (29.8 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KHCO 300834Z AUTO 17006KT 10SM SCT065 OVC080 M04/M04 A2979 RMK AO2 |
| 02:14 CST |  Overcast | -4°C / 25°F | -4°C / 25°F | 100% | 1009 mb (29.8 in) | SSE 13 kph (SSE 8.1 mph) | - | 10SM |
| | KHCO 300814Z AUTO 16007KT 10SM OVC090 M04/M04 A2979 RMK AO2 |
| 01:54 CST |  Overcast | -4°C / 25°F | -4°C / 25°F | 100% | 1009 mb (29.8 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KHCO 300754Z AUTO 17006KT 10SM OVC090 M04/M04 A2981 RMK AO2 |
| 01:34 CST |  Overcast | -4°C / 25°F | -4°C / 25°F | 100% | 1010 mb (29.83 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KHCO 300734Z AUTO 17006KT 10SM OVC090 M04/M04 A2982 RMK AO2 |
| 01:14 CST |  Overcast | -5°C / 23°F | -5°C / 23°F | 100% | 1010 mb (29.83 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KHCO 300714Z AUTO 18005KT 10SM OVC090 M05/M05 A2983 RMK AO2 |
| 00:55 CST |  Mostly Cloudy | -5°C / 23°F | -6°C / 21°F | 93% | 1010 mb (29.83 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KHCO 300655Z AUTO 18006KT 10SM BKN090 M05/M06 A2983 RMK AO2 |
| 00:34 CST |  Partly Cloudy | -6°C / 21°F | -7°C / 19°F | 93% | 1010 mb (29.83 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KHCO 300634Z AUTO 18005KT 10SM SCT090 M06/M07 A2984 RMK AO2 |
| 00:14 CST |  Clear | -6°C / 21°F | -6°C / 21°F | 100% | 1010 mb (29.83 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KHCO 300614Z AUTO 18006KT 10SM CLR M06/M06 A2983 RMK AO2 |