| 10:53 CST |  Clear Hazy | 3°C / 37°F | -1°C / 30°F | 75% | 1009 mb (29.8 in) | SW 7 kph (SW 4.6 mph) | - | 6SM |
| | KGRB 281653Z 22004KT 6SM HZ CLR 03/M01 A2980 RMK AO2 SLP097 T00331006 |
| 09:53 CST |  Clear Fog And Mist | 1°C / 34°F | -1°C / 30°F | 87% | 1010 mb (29.83 in) | SW 7 kph (SW 4.6 mph) | - | 5SM |
| | KGRB 281553Z 21004KT 5SM BR CLR 01/M01 A2982 RMK AO2 SLP105 T00111011 |
| 08:53 CST |  Clear Fog And Mist | 0°C / 32°F | -2°C / 28°F | 87% | 1010 mb (29.83 in) | S 6 kph (S 3.5 mph) | - | 6SM |
| | KGRB 281453Z 19003KT 6SM BR CLR 00/M02 A2982 RMK AO2 SLP105 T00001022 50000 |
| 07:53 CST |  Clear Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1010 mb (29.83 in) | Calm | - | 4SM |
| | KGRB 281353Z 00000KT 4SM BR CLR M02/M03 A2982 RMK AO2 SLP108 T10171028 |
| 06:53 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1010 mb (29.83 in) | N 6 kph (N 3.5 mph) | - | 8SM |
| | KGRB 281253Z 35003KT 8SM CLR M02/M04 A2982 RMK AO2 SLP108 T10221044 |
| 05:53 CST |  Clear | -3°C / 27°F | -4°C / 25°F | 93% | 1010 mb (29.83 in) | Calm | - | 7SM |
| | KGRB 281153Z 00000KT 7SM CLR M03/M04 A2982 RMK AO2 SLP106 T10331044 11006 21033 56016 |
| 04:53 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1010 mb (29.83 in) | Calm | - | 9SM |
| | KGRB 281053Z AUTO 00000KT 9SM CLR M02/M04 A2983 RMK AO2 SLP110 T10221039 |
| 03:53 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1010 mb (29.83 in) | Calm | - | 10SM |
| | KGRB 280953Z AUTO 00000KT 10SM CLR M02/M04 A2984 RMK AO2 SLP115 T10221039 |
| 02:53 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1011 mb (29.85 in) | Calm | - | 10SM |
| | KGRB 280853Z AUTO 00000KT 10SM CLR M02/M04 A2986 RMK AO2 SLP122 T10171039 58013 |
| 01:53 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KGRB 280753Z AUTO 00000KT 10SM CLR M02/M04 A2988 RMK AO2 SLP128 T10171044 |
| 00:53 CST |  Clear | -1°C / 30°F | -4°C / 25°F | 80% | 1012 mb (29.88 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KGRB 280653Z AUTO 19003KT 10SM CLR M01/M04 A2989 RMK AO2 SLP130 T10111039 |