| 13:53 CST |  Overcast | 7°C / 45°F | 5°C / 41°F | 87% | 1004 mb (29.65 in) | NW 15 kph (NW 9.2 mph) | - | 8SM |
| | KGRB 251953Z 31008KT 8SM FEW015 BKN022 OVC028 07/05 A2965 RMK AO2 SLP046 T00720050 |
| 12:53 CST |  Overcast | 7°C / 45°F | 4°C / 39°F | 81% | 1004 mb (29.65 in) | NW 15 kph (NW 9.2 mph) | - | 8SM |
| | KGRB 251853Z 30008KT 8SM OVC015 07/04 A2965 RMK AO2 SLP046 T00670044 |
| 12:43 CST |  Overcast | 7°C / 45°F | 5°C / 41°F | 87% | 1004 mb (29.65 in) | WNW 13 kph (WNW 8.1 mph) | - | 8SM |
| | KGRB 251843Z 29007KT 8SM BKN015 OVC036 07/05 A2966 RMK AO2 |
| 12:24 CST |  Overcast | 7°C / 45°F | 5°C / 41°F | 87% | 1004 mb (29.65 in) | NW 13 kph (NW 8.1 mph) | - | 8SM |
| | KGRB 251824Z 30007KT 8SM SCT029 OVC036 07/05 A2966 RMK AO2 |
| 11:53 CST |  Overcast | 7°C / 45°F | 5°C / 41°F | 87% | 1004 mb (29.65 in) | NW 15 kph (NW 9.2 mph) | - | 7SM |
| | KGRB 251753Z 30008KT 7SM FEW010 OVC025 07/05 A2966 RMK AO2 SLP047 60001 T00670050 10072 20061 50002 |
| 11:36 CST |  Overcast Fog And Mist | 7°C / 45°F | 5°C / 41°F | 87% | 1004 mb (29.65 in) | WNW 15 kph (WNW 9.2 mph) | - | 6SM |
| | KGRB 251736Z 29008KT 6SM BR SCT010 OVC021 07/05 A2966 RMK AO2 |
| 11:25 CST |  Overcast Fog And Mist | 6°C / 43°F | 5°C / 41°F | 93% | 1004 mb (29.65 in) | WNW 15 kph (WNW 9.2 mph) | - | 4SM |
| | KGRB 251725Z 29008KT 4SM BR BKN010 OVC021 06/05 A2966 RMK AO2 CIG 007V012 |
| 10:53 CST |  Overcast Fog And Mist | 7°C / 45°F | 5°C / 41°F | 87% | 1004 mb (29.65 in) | NW 17 kph (NW 10.4 mph) | - | 5SM |
| | KGRB 251653Z 30009KT 5SM BR OVC008 07/05 A2966 RMK AO2 SLP048 T00670050 |
| 09:53 CST |  Overcast Fog And Mist | 7°C / 45°F | 6°C / 43°F | 93% | 1004 mb (29.65 in) | NNW 9 kph (NNW 5.8 mph) | - | 5SM |
| | KGRB 251553Z 33005KT 5SM BR OVC006 07/06 A2966 RMK AO2 SLP047 T00720056 |
| 08:53 CST |  Overcast Fog And Mist | 7°C / 45°F | 6°C / 43°F | 93% | 1004 mb (29.65 in) | NNW 13 kph (NNW 8.1 mph) | - | 5SM |
| | KGRB 251453Z 33007KT 5SM BR OVC006 07/06 A2965 RMK AO2 SLP045 60001 T00670056 56006 |
| 07:53 CST |  Overcast Fog And Mist | 6°C / 43°F | 6°C / 43°F | 100% | 1004 mb (29.65 in) | N 13 kph (N 8.1 mph) | 0.00 mm (0.00 in) | 4SM |
| | KGRB 251353Z 35007KT 4SM BR OVC006 06/06 A2966 RMK AO2 RAE09 SLP046 P0000 T00610056 |
| 06:53 CST |  Overcast Light Rain | 6°C / 43°F | 6°C / 43°F | 100% | 1004 mb (29.65 in) | N 13 kph (N 8.1 mph) | 0.25 mm (0.01 in) | 5SM |
| | KGRB 251253Z 35007KT 5SM -RA BR OVC006 06/06 A2966 RMK AO2 SLP049 P0001 T00610056 |
| 06:20 CST |  Overcast Light Rain | 7°C / 45°F | 6°C / 43°F | 93% | 1005 mb (29.68 in) | N 15 kph (N 9.2 mph) | 0.00 mm (0.00 in) | 5SM |
| | KGRB 251220Z 36008KT 5SM -RA BR OVC006 07/06 A2967 RMK AO2 P0000 |
| 05:53 CST |  Overcast Light Rain | 7°C / 45°F | 6°C / 43°F | 93% | 1005 mb (29.68 in) | N 19 kph (N 11.5 mph) | 1.27 mm (0.05 in) | 5SM |
| | KGRB 251153Z 36010KT 5SM -RA BR OVC004 07/06 A2967 RMK AO2 SLP051 P0005 60035 70048 T00670056 10072 20067 56012 |
| 04:53 CST |  Overcast Light Rain | 7°C / 45°F | 6°C / 43°F | 93% | 1005 mb (29.68 in) | N 13 kph (N 8.1 mph) | 1.52 mm (0.06 in) | 4SM |
| | KGRB 251053Z AUTO 36007KT 4SM -RA BR OVC004 07/06 A2968 RMK AO2 CIG 004V009 SLP054 P0006 T00670056 TSNO |
| 04:38 CST |  Overcast Light Rain | 7°C / 45°F | 6°C / 43°F | 93% | 1005 mb (29.68 in) | N 15 kph (N 9.2 mph) | 1.27 mm (0.05 in) | 4SM |
| | KGRB 251038Z AUTO 01008KT 4SM -RA BR OVC006 07/06 A2968 RMK AO2 CIG 004V009 P0005 TSNO |
| 03:53 CST |  Overcast Light Rain | 7°C / 45°F | 6°C / 43°F | 93% | 1005 mb (29.68 in) | NNE 17 kph (NNE 10.4 mph) | 1.78 mm (0.07 in) | 4SM |
| | KGRB 250953Z AUTO 02009KT 4SM -RA BR OVC004 07/06 A2969 RMK AO2 CIG 003V007 SLP057 P0007 T00670061 TSNO |
| 03:37 CST |  Overcast Rain | 7°C / 45°F | 6°C / 43°F | 93% | 1005 mb (29.68 in) | NE 19 kph (NE 11.5 mph) | 1.27 mm (0.05 in) | 3SM |
| | KGRB 250937Z AUTO 03010KT 3SM RA BR OVC004 07/06 A2969 RMK AO2 P0005 TSNO |
| 02:53 CST |  Overcast Light Rain | 7°C / 45°F | 6°C / 43°F | 93% | 1006 mb (29.71 in) | NE 15 kph (NE 9.2 mph) | 1.52 mm (0.06 in) | 2 1/2SM |
| | KGRB 250853Z AUTO 03008KT 2 1/2SM -RA BR OVC004 07/06 A2971 RMK AO2 SLP064 P0006 60017 T00670061 56025 TSNO |
| 01:53 CST |  Overcast Rain | 7°C / 45°F | 6°C / 43°F | 93% | 1007 mb (29.74 in) | NE 15 kph (NE 9.2 mph) | 2.03 mm (0.08 in) | 2SM |
| | KGRB 250753Z AUTO 03008KT 2SM RA BR OVC004 07/06 A2973 RMK AO2 CIG 003V007 SLP072 P0008 T00670061 TSNO |
| 01:20 CST |  Overcast Light Rain | 7°C / 45°F | 6°C / 43°F | 93% | 1007 mb (29.74 in) | NE 13 kph (NE 8.1 mph) | 0.76 mm (0.03 in) | 2SM |
| | KGRB 250720Z AUTO 03007KT 2SM -RA BR OVC004 07/06 A2974 RMK AO2 P0003 TSNO |
| 01:07 CST |  Overcast Light Rain | 7°C / 45°F | 6°C / 43°F | 93% | 1007 mb (29.74 in) | NE 17 kph (NE 10.4 mph) | 0.51 mm (0.02 in) | 1 3/4SM |
| | KGRB 250707Z AUTO 04009KT 1 3/4SM -RA BR OVC004 07/06 A2975 RMK AO2 CIG 002V007 P0002 TSNO |
| 01:00 CST |  Overcast Light Rain | 7°C / 45°F | 6°C / 43°F | 93% | 1007 mb (29.74 in) | NE 15 kph (NE 9.2 mph) | 0.25 mm (0.01 in) | 2SM |
| | KGRB 250700Z AUTO 04008KT 2SM -RA BR OVC004 07/06 A2975 RMK AO2 CIG 003V006 P0001 TSNO |
| 00:53 CST |  Overcast Light Rain | 7°C / 45°F | 6°C / 43°F | 93% | 1007 mb (29.74 in) | NE 15 kph (NE 9.2 mph) | 0.76 mm (0.03 in) | 1 3/4SM |
| | KGRB 250653Z AUTO 05008KT 1 3/4SM -RA BR OVC006 07/06 A2975 RMK AO2 CIG 003V008 SLP079 P0003 T00670061 TSNO |
| 00:42 CST |  Overcast Light Rain | 7°C / 45°F | 6°C / 43°F | 93% | 1008 mb (29.77 in) | NE 13 kph (NE 8.1 mph) | 0.76 mm (0.03 in) | 2SM |
| | KGRB 250642Z AUTO 04007KT 2SM -RA BR OVC006 07/06 A2976 RMK AO2 CIG 003V009 P0003 TSNO |
| 00:15 CST |  Overcast Light Rain | 7°C / 45°F | 6°C / 43°F | 93% | 1008 mb (29.77 in) | NE 13 kph (NE 8.1 mph) | 0.25 mm (0.01 in) | 1 3/4SM |
| | KGRB 250615Z AUTO 05007KT 1 3/4SM -RA BR OVC006 07/06 A2977 RMK AO2 CIG 003V009 P0001 TSNO |