| 09:35 CST |  Clear | -1°C / 30°F | -8°C / 18°F | 59% | 1018 mb (30.06 in) | N 24 kph (N 15 mph) | - | 10SM |
| | KOLU 021535Z AUTO 35013G19KT 10SM CLR M01/M08 A3005 RMK AO1 |
| 09:15 CST |  Clear | -2°C / 28°F | -8°C / 18°F | 64% | 1018 mb (30.06 in) | N 24 kph (N 15 mph) | - | 10SM |
| | KOLU 021515Z AUTO 35013G17KT 10SM CLR M02/M08 A3005 RMK AO1 |
| 08:55 CST |  Clear | -2°C / 28°F | -8°C / 18°F | 64% | 1018 mb (30.06 in) | NNW 24 kph (NNW 15 mph) | - | 10SM |
| | KOLU 021455Z AUTO 34013G18KT 10SM CLR M02/M08 A3005 RMK AO1 52010 |
| 08:35 CST |  Clear | -2°C / 28°F | -8°C / 18°F | 64% | 1017 mb (30.03 in) | N 28 kph (N 17.3 mph) | - | 10SM |
| | KOLU 021435Z AUTO 35015G20KT 10SM CLR M02/M08 A3004 RMK AO1 |
| 08:15 CST |  Clear | -2°C / 28°F | -8°C / 18°F | 64% | 1017 mb (30.03 in) | N 32 kph (N 19.6 mph) | - | 10SM |
| | KOLU 021415Z AUTO 35017KT 10SM CLR M02/M08 A3004 RMK AO1 |
| 07:55 CST |  Clear | -2°C / 28°F | -8°C / 18°F | 64% | 1017 mb (30.03 in) | N 28 kph (N 17.3 mph) | - | 10SM |
| | KOLU 021355Z AUTO 36015KT 10SM CLR M02/M08 A3004 RMK AO1 |
| 07:35 CST |  Partly Cloudy | -2°C / 28°F | -8°C / 18°F | 64% | 1017 mb (30.03 in) | N 19 kph (N 11.5 mph) | - | 10SM |
| | KOLU 021335Z AUTO 35010G17KT 10SM FEW120 M02/M08 A3004 RMK AO1 |
| 07:15 CST |  Partly Cloudy | -2°C / 28°F | -8°C / 18°F | 64% | 1017 mb (30.03 in) | N 22 kph (N 13.8 mph) | - | 10SM |
| | KOLU 021315Z AUTO 35012G17KT 10SM FEW120 M02/M08 A3004 RMK AO1 |
| 06:55 CST |  Mostly Cloudy | -1°C / 30°F | -8°C / 18°F | 59% | 1017 mb (30.03 in) | N 26 kph (N 16.1 mph) | - | 10SM |
| | KOLU 021255Z AUTO 35014G18KT 10SM BKN120 M01/M08 A3004 RMK AO1 |
| 06:35 CST |  Overcast | -1°C / 30°F | -8°C / 18°F | 59% | 1017 mb (30.03 in) | N 30 kph (N 18.4 mph) | - | 10SM |
| | KOLU 021235Z AUTO 35016G23KT 10SM OVC120 M01/M08 A3003 RMK AO1 |
| 06:15 CST |  Overcast | -1°C / 30°F | -8°C / 18°F | 59% | 1017 mb (30.03 in) | N 24 kph (N 15 mph) | - | 10SM |
| | KOLU 021215Z AUTO 35013G19KT 10SM OVC120 M01/M08 A3002 RMK AO1 |
| 05:55 CST |  Overcast | -1°C / 30°F | -8°C / 18°F | 59% | 1017 mb (30.03 in) | NNW 26 kph (NNW 16.1 mph) | - | 10SM |
| | KOLU 021155Z AUTO 34014G18KT 10SM OVC120 M01/M08 A3002 RMK AO1 11010 21020 52003 |
| 05:35 CST |  Overcast | -1°C / 30°F | -8°C / 18°F | 59% | 1016 mb (30 in) | N 24 kph (N 15 mph) | - | 10SM |
| | KOLU 021135Z AUTO 35013G18KT 10SM OVC120 M01/M08 A3001 RMK AO1 |
| 05:15 CST |  Mostly Cloudy | -1°C / 30°F | -8°C / 18°F | 59% | 1016 mb (30 in) | NNW 24 kph (NNW 15 mph) | - | 10SM |
| | KOLU 021115Z AUTO 34013G19KT 10SM BKN110 M01/M08 A3001 RMK AO1 |
| 04:55 CST |  Mostly Cloudy | -1°C / 30°F | -8°C / 18°F | 59% | 1016 mb (30 in) | N 24 kph (N 15 mph) | - | 10SM |
| | KOLU 021055Z AUTO 35013KT 10SM BKN110 M01/M08 A2999 RMK AO1 |
| 04:35 CST |  Overcast | -1°C / 30°F | -8°C / 18°F | 59% | 1016 mb (30 in) | N 26 kph (N 16.1 mph) | - | 10SM |
| | KOLU 021035Z AUTO 35014G19KT 10SM OVC110 M01/M08 A2999 RMK AO1 |
| 04:15 CST |  Overcast | -1°C / 30°F | -7°C / 19°F | 64% | 1016 mb (30 in) | N 22 kph (N 13.8 mph) | - | 10SM |
| | KOLU 021015Z AUTO 35012KT 10SM OVC110 M01/M07 A3000 RMK AO1 |
| 03:55 CST |  Overcast | -1°C / 30°F | -7°C / 19°F | 64% | 1016 mb (30 in) | NNW 22 kph (NNW 13.8 mph) | - | 10SM |
| | KOLU 020955Z AUTO 34012G19KT 10SM OVC110 M01/M07 A3000 RMK AO1 |
| 03:35 CST |  Mostly Cloudy | -2°C / 28°F | -7°C / 19°F | 69% | 1016 mb (30 in) | NNW 20 kph (NNW 12.7 mph) | - | 10SM |
| | KOLU 020935Z AUTO 34011KT 10SM BKN110 M02/M07 A3001 RMK AO1 |
| 03:15 CST |  Clear | -1°C / 30°F | -7°C / 19°F | 64% | 1016 mb (30 in) | NNW 20 kph (NNW 12.7 mph) | - | 10SM |
| | KOLU 020915Z AUTO 34011G17KT 10SM CLR M01/M07 A3001 RMK AO1 |
| 02:55 CST |  Clear | -1°C / 30°F | -7°C / 19°F | 64% | 1016 mb (30 in) | NNW 20 kph (NNW 12.7 mph) | - | 10SM |
| | KOLU 020855Z AUTO 34011G15KT 10SM CLR M01/M07 A3001 RMK AO1 52017 |
| 02:35 CST |  Clear | -1°C / 30°F | -7°C / 19°F | 64% | 1016 mb (30 in) | NNW 22 kph (NNW 13.8 mph) | - | 10SM |
| | KOLU 020835Z AUTO 34012KT 10SM CLR M01/M07 A3001 RMK AO1 |
| 02:15 CST |  Clear | -1°C / 30°F | -7°C / 19°F | 64% | 1016 mb (30 in) | NNW 22 kph (NNW 13.8 mph) | - | 10SM |
| | KOLU 020815Z AUTO 34012KT 10SM CLR M01/M07 A3000 RMK AO1 |
| 01:55 CST |  Clear | -1°C / 30°F | -7°C / 19°F | 64% | 1016 mb (30 in) | NNW 22 kph (NNW 13.8 mph) | - | 10SM |
| | KOLU 020755Z AUTO 33012KT 10SM CLR M01/M07 A2999 RMK AO1 |
| 01:35 CST |  Clear | -1°C / 30°F | -6°C / 21°F | 69% | 1016 mb (30 in) | NNW 19 kph (NNW 11.5 mph) | - | 10SM |
| | KOLU 020735Z AUTO 34010KT 10SM CLR M01/M06 A2999 RMK AO1 |
| 01:15 CST |  Clear | -1°C / 30°F | -6°C / 21°F | 69% | 1016 mb (30 in) | NNW 17 kph (NNW 10.4 mph) | - | 10SM |
| | KOLU 020715Z AUTO 34009KT 10SM CLR M01/M06 A2999 RMK AO1 |
| 00:55 CST |  Clear | -1°C / 30°F | -6°C / 21°F | 69% | 1015 mb (29.97 in) | NNW 13 kph (NNW 8.1 mph) | - | 10SM |
| | KOLU 020655Z AUTO 33007KT 10SM CLR M01/M06 A2997 RMK AO1 |
| 00:35 CST |  Clear | -1°C / 30°F | -6°C / 21°F | 69% | 1015 mb (29.97 in) | NNW 15 kph (NNW 9.2 mph) | - | 10SM |
| | KOLU 020635Z AUTO 34008KT 10SM CLR M01/M06 A2996 RMK AO1 |
| 00:15 CST |  Clear | -1°C / 30°F | -6°C / 21°F | 69% | 1015 mb (29.97 in) | NNW 13 kph (NNW 8.1 mph) | - | 10SM |
| | KOLU 020615Z AUTO 34007KT 10SM CLR M01/M06 A2996 RMK AO1 |