| 05:53 CST |  Clear Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1009 mb (29.8 in) | Calm | - | 6SM |
| | KGRB 011153Z 00000KT 6SM BR CLR M02/M03 A2979 RMK AO2 SLP095 T10171028 10011 21022 51009 |
| 04:53 CST |  Clear Fog And Mist | -2°C / 28°F | -2°C / 28°F | 100% | 1009 mb (29.8 in) | Calm | - | 6SM |
| | KGRB 011053Z AUTO 00000KT 6SM BR CLR M02/M02 A2979 RMK AO2 SLP094 T10171022 |
| 03:53 CST |  Clear | 1°C / 34°F | -2°C / 28°F | 81% | 1008 mb (29.77 in) | Calm | - | 9SM |
| | KGRB 010953Z AUTO 00000KT 9SM CLR 01/M02 A2978 RMK AO2 SLP091 T00061017 |
| 02:53 CST |  Clear | 1°C / 34°F | -1°C / 30°F | 87% | 1008 mb (29.77 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KGRB 010853Z AUTO 24004KT 10SM CLR 01/M01 A2976 RMK AO2 SLP085 T00111011 53018 |
| 01:53 CST |  Clear | 1°C / 34°F | -2°C / 28°F | 81% | 1007 mb (29.74 in) | SSW 9 kph (SSW 5.8 mph) | - | 9SM |
| | KGRB 010753Z AUTO 24005KT 9SM CLR 01/M02 A2975 RMK AO2 SLP080 T00061017 |
| 00:53 CST |  Clear | 0°C / 32°F | -2°C / 28°F | 87% | 1006 mb (29.71 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KGRB 010653Z AUTO 21003KT 10SM CLR 00/M02 A2971 RMK AO2 SLP067 T00001017 |