| 22:17 CST |  Mostly Cloudy | 2°C / 36°F | -1°C / 30°F | 81% | 1003 mb (29.62 in) | SSW 39 kph (SSW 24.2 mph) | - | 10SM |
| | KGCM 090417Z AUTO 26021G24KT 10SM SCT021 BKN039 BKN055 02/M01 A2961 RMK AO2 |
| 21:57 CST |  Overcast | 3°C / 37°F | 0°C / 32°F | 81% | 1003 mb (29.62 in) | W 37 kph (W 23 mph) | - | 10SM |
| | KGCM 090357Z AUTO 27020G28KT 10SM BKN021 OVC037 03/00 A2961 RMK AO2 |
| 21:37 CST |  Overcast | 3°C / 37°F | 1°C / 34°F | 87% | 1002 mb (29.59 in) | W 35 kph (W 21.9 mph) | - | 10SM |
| | KGCM 090337Z AUTO 27019G26KT 10SM OVC024 03/01 A2959 RMK AO2 |
| 21:17 CST |  Mostly Cloudy | 4°C / 39°F | 2°C / 36°F | 87% | 1002 mb (29.59 in) | W 32 kph (W 19.6 mph) | - | 10SM |
| | KGCM 090317Z AUTO 27017G23KT 10SM SCT018 BKN024 BKN029 04/02 A2958 RMK AO2 |
| 20:57 CST |  Mostly Cloudy | 4°C / 39°F | 2°C / 36°F | 87% | 1001 mb (29.56 in) | SSW 28 kph (SSW 17.3 mph) | - | 10SM |
| | KGCM 090257Z AUTO 26015G21KT 10SM SCT018 BKN026 04/02 A2956 RMK AO2 |
| 20:37 CST |  Partly Cloudy | 4°C / 39°F | 2°C / 36°F | 87% | 1001 mb (29.56 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KGCM 090237Z AUTO 25010G16KT 10SM SCT016 SCT026 04/02 A2955 RMK AO2 |
| 20:17 CST |  Overcast | 5°C / 41°F | 3°C / 37°F | 87% | 1000 mb (29.53 in) | SSW 30 kph (SSW 18.4 mph) | - | 10SM |
| | KGCM 090217Z AUTO 26016G24KT 10SM BKN016 BKN021 OVC027 05/03 A2954 RMK AO2 |
| 19:57 CST |  Overcast | 6°C / 43°F | 3°C / 37°F | 81% | 1000 mb (29.53 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KGCM 090157Z AUTO 26010G19KT 10SM OVC018 06/03 A2953 RMK AO2 |
| 19:37 CST |  Overcast | 6°C / 43°F | 4°C / 39°F | 87% | 1000 mb (29.53 in) | SSW 26 kph (SSW 16.1 mph) | - | 10SM |
| | KGCM 090137Z AUTO 25014G20KT 10SM BKN020 OVC026 06/04 A2952 RMK AO2 |
| 19:17 CST |  Overcast | 6°C / 43°F | 4°C / 39°F | 87% | 999 mb (29.5 in) | SSW 26 kph (SSW 16.1 mph) | - | 10SM |
| | KGCM 090117Z AUTO 25014G22KT 10SM BKN018 BKN024 OVC031 06/04 A2951 RMK AO2 |
| 18:57 CST |  Overcast | 6°C / 43°F | 5°C / 41°F | 93% | 999 mb (29.5 in) | SSW 26 kph (SSW 16.1 mph) | - | 10SM |
| | KGCM 090057Z AUTO 26014G21KT 10SM BKN017 OVC024 06/05 A2951 RMK AO2 |
| 18:37 CST |  Overcast | 7°C / 45°F | 6°C / 43°F | 93% | 999 mb (29.5 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KGCM 090037Z AUTO 24010KT 10SM BKN014 OVC021 07/06 A2950 RMK AO2 |
| 18:17 CST |  Overcast | 6°C / 43°F | 6°C / 43°F | 100% | 999 mb (29.5 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KGCM 090017Z AUTO 24009KT 10SM SCT008 OVC014 06/06 A2949 RMK AO2 |
| 17:57 CST |  Overcast | 6°C / 43°F | 6°C / 43°F | 100% | 998 mb (29.47 in) | SW 20 kph (SW 12.7 mph) | - | 10SM |
| | KGCM 082357Z AUTO 23011G14KT 10SM SCT005 BKN010 OVC016 06/06 A2946 RMK AO2 |
| 17:37 CST |  Overcast | 6°C / 43°F | 6°C / 43°F | 100% | 998 mb (29.47 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KGCM 082337Z AUTO 25010KT 10SM OVC005 06/06 A2948 RMK AO2 |
| 17:17 CST |  Overcast | 6°C / 43°F | 6°C / 43°F | 100% | 996 mb (29.41 in) | S 20 kph (S 12.7 mph) | - | 10SM |
| | KGCM 082317Z AUTO 19011KT 10SM OVC005 06/06 A2942 RMK AO2 |
| 16:57 CST |  Overcast Fog And Mist | 6°C / 43°F | 6°C / 43°F | 100% | 996 mb (29.41 in) | S 15 kph (S 9.2 mph) | - | 5SM |
| | KGCM 082257Z AUTO 18008KT 5SM BR OVC005 06/06 A2942 RMK AO2 |
| 16:37 CST |  Overcast Fog And Mist | 6°C / 43°F | 6°C / 43°F | 100% | 996 mb (29.41 in) | S 22 kph (S 13.8 mph) | - | 4SM |
| | KGCM 082237Z AUTO 17012G15KT 4SM BR OVC005 06/06 A2942 RMK AO2 |
| 16:17 CST |  Overcast Drizzle | 6°C / 43°F | 6°C / 43°F | 100% | 997 mb (29.44 in) | S 17 kph (S 10.4 mph) | - | 2SM |
| | KGCM 082217Z AUTO 17009G14KT 2SM -DZ OVC005 06/06 A2944 RMK AO2 |
| 15:57 CST |  Overcast Drizzle | 6°C / 43°F | 6°C / 43°F | 100% | 998 mb (29.47 in) | S 15 kph (S 9.2 mph) | - | 1 3/4SM |
| | KGCM 082157Z AUTO 19008KT 1 3/4SM DZ OVC005 06/06 A2947 RMK AO2 |
| 15:37 CST |  Overcast Fog And Mist | 6°C / 43°F | 6°C / 43°F | 100% | 998 mb (29.47 in) | SSE 15 kph (SSE 9.2 mph) | - | 3SM |
| | KGCM 082137Z AUTO 20008KT 3SM BR OVC005 06/06 A2947 RMK AO2 |
| 15:17 CST |  Overcast | 6°C / 43°F | 6°C / 43°F | 100% | 998 mb (29.47 in) | S 17 kph (S 10.4 mph) | - | 10SM |
| | KGCM 082117Z AUTO 19009KT 10SM OVC005 06/06 A2947 RMK AO2 |
| 14:57 CST |  Overcast | 6°C / 43°F | 6°C / 43°F | 100% | 997 mb (29.44 in) | SSE 13 kph (SSE 8.1 mph) | - | 7SM |
| | KGCM 082057Z AUTO 16007KT 7SM OVC005 06/06 A2945 RMK AO2 |
| 14:37 CST |  Overcast | 6°C / 43°F | 6°C / 43°F | 100% | 998 mb (29.47 in) | SSE 20 kph (SSE 12.7 mph) | - | 10SM |
| | KGCM 082037Z AUTO 15011KT 10SM OVC005 06/06 A2946 RMK AO2 LTG DSNT E |
| 14:17 CST |  Overcast | 6°C / 43°F | 6°C / 43°F | 100% | 998 mb (29.47 in) | SSE 13 kph (SSE 8.1 mph) | - | 10SM |
| | KGCM 082017Z AUTO 15007KT 10SM OVC005 06/06 A2948 RMK AO2 |
| 13:57 CST |  Overcast Fog And Mist | 6°C / 43°F | 6°C / 43°F | 100% | 999 mb (29.5 in) | SSE 15 kph (SSE 9.2 mph) | - | 5SM |
| | KGCM 081957Z AUTO 15008KT 5SM BR OVC003 06/06 A2950 RMK AO2 |
| 13:37 CST |  Overcast Fog And Mist | 5°C / 41°F | 5°C / 41°F | 100% | 1000 mb (29.53 in) | SSE 13 kph (SSE 8.1 mph) | - | 3SM |
| | KGCM 081937Z AUTO 15007KT 3SM BR OVC003 05/05 A2952 RMK AO2 |
| 13:19 CST |  Overcast Fog And Mist | 5°C / 41°F | 5°C / 41°F | 100% | 1001 mb (29.56 in) | SSE 15 kph (SSE 9.2 mph) | - | 2 1/2SM |
| | KGCM 081919Z AUTO 15008KT 2 1/2SM BR OVC005 05/05 A2955 RMK AO2 |
| 12:57 CST |  Overcast Fog And Mist | 5°C / 41°F | 5°C / 41°F | 100% | 1001 mb (29.56 in) | S 11 kph (S 6.9 mph) | - | 5SM |
| | KGCM 081857Z AUTO 17006KT 5SM BR OVC003 05/05 A2957 RMK AO2 LTG DSNT SE |
| 12:37 CST |  Overcast Drizzle | 4°C / 39°F | 4°C / 39°F | 100% | 1002 mb (29.59 in) | S 11 kph (S 6.9 mph) | - | 2 1/2SM |
| | KGCM 081837Z AUTO 17006KT 2 1/2SM DZ OVC003 04/04 A2959 RMK AO2 |
| 12:17 CST |  Overcast Drizzle | 4°C / 39°F | 4°C / 39°F | 100% | 1002 mb (29.59 in) | SSE 6 kph (SSE 3.5 mph) | - | 3SM |
| | KGCM 081817Z AUTO 16003KT 3SM DZ OVC003 04/04 A2960 RMK AO2 |
| 11:57 CST |  Overcast Drizzle | 4°C / 39°F | 4°C / 39°F | 100% | 1003 mb (29.62 in) | SSE 6 kph (SSE 3.5 mph) | 0.51 mm (0.02 in) | 2SM |
| | KGCM 081757Z AUTO 16003KT 2SM DZ OVC005 04/04 A2962 RMK AO2 P0002 |
| 11:38 CST |  Overcast Drizzle | 4°C / 39°F | 4°C / 39°F | 100% | 1003 mb (29.62 in) | ESE 6 kph (ESE 3.5 mph) | 0.51 mm (0.02 in) | 2 1/2SM |
| | KGCM 081738Z AUTO 11003KT 2 1/2SM DZ OVC003 04/04 A2963 RMK AO2 P0002 |
| 11:17 CST |  Overcast Rain | 4°C / 39°F | 4°C / 39°F | 100% | 1004 mb (29.65 in) | Calm | 0.25 mm (0.01 in) | 2SM |
| | KGCM 081717Z AUTO 00000KT 2SM RA OVC003 04/04 A2966 RMK AO2 LTG DSNT SE P0001 |
| 10:57 CST |  Overcast Rain | 4°C / 39°F | 3°C / 37°F | 93% | 1004 mb (29.65 in) | E 9 kph (E 5.8 mph) | 1.52 mm (0.06 in) | 2SM |
| | KGCM 081657Z AUTO 08005KT 2SM RA OVC003 04/03 A2966 RMK AO2 P0006 |
| 10:37 CST |  Overcast Rain | 3°C / 37°F | 3°C / 37°F | 100% | 1005 mb (29.68 in) | Calm | 0.76 mm (0.03 in) | 2 1/2SM |
| | KGCM 081637Z AUTO 00000KT 2 1/2SM RA OVC003 03/03 A2969 RMK AO2 P0003 |
| 10:17 CST |  Overcast Rain | 3°C / 37°F | 3°C / 37°F | 100% | 1006 mb (29.71 in) | E 9 kph (E 5.8 mph) | 0.76 mm (0.03 in) | 1 1/2SM |
| | KGCM 081617Z AUTO 08005KT 1 1/2SM RA OVC003 03/03 A2970 RMK AO2 LTG DSNT SE P0003 |
| 09:57 CST |  Overcast Rain | 3°C / 37°F | 3°C / 37°F | 100% | 1007 mb (29.74 in) | NE 6 kph (NE 3.5 mph) | 2.54 mm (0.10 in) | 1 1/2SM |
| | KGCM 081557Z AUTO 05003KT 1 1/2SM RA OVC003 03/03 A2973 RMK AO2 LTG DSNT SE P0010 |
| 09:37 CST |  Overcast Rain | 3°C / 37°F | 3°C / 37°F | 100% | 1007 mb (29.74 in) | ENE 6 kph (ENE 3.5 mph) | 1.78 mm (0.07 in) | 1 1/4SM |
| | KGCM 081537Z AUTO 06003KT 1 1/4SM RA SCT003 OVC010 03/03 A2974 RMK AO2 P0007 |
| 09:17 CST |  Overcast Rain | 3°C / 37°F | 3°C / 37°F | 100% | 1008 mb (29.77 in) | Calm | 0.51 mm (0.02 in) | 2SM |
| | KGCM 081517Z AUTO 00000KT 2SM RA BKN005 OVC008 03/03 A2976 RMK AO2 P0002 |
| 08:57 CST |  Overcast Rain | 3°C / 37°F | 3°C / 37°F | 100% | 1008 mb (29.77 in) | NE 6 kph (NE 3.5 mph) | 2.03 mm (0.08 in) | 1 1/4SM |
| | KGCM 081457Z AUTO 05003KT 1 1/4SM RA OVC007 03/03 A2977 RMK AO2 P0008 |
| 08:37 CST |  Overcast Rain | 3°C / 37°F | 3°C / 37°F | 100% | 1009 mb (29.8 in) | Calm | 0.51 mm (0.02 in) | 4SM |
| | KGCM 081437Z AUTO 00000KT 4SM RA SCT007 OVC012 03/03 A2979 RMK AO2 P0002 |
| 08:18 CST |  Overcast Light Rain | 3°C / 37°F | 3°C / 37°F | 100% | 1008 mb (29.77 in) | E 13 kph (E 8.1 mph) | 0.25 mm (0.01 in) | 3SM |
| | KGCM 081418Z AUTO 08007KT 3SM -RA BKN005 BKN012 OVC019 03/03 A2978 RMK AO2 P0001 |
| 07:57 CST |  Overcast Light Rain | 3°C / 37°F | 3°C / 37°F | 100% | 1009 mb (29.8 in) | E 17 kph (E 10.4 mph) | - | 3SM |
| | KGCM 081357Z AUTO 10009KT 3SM -RA BKN005 BKN022 OVC028 03/03 A2981 RMK AO2 |
| 07:38 CST |  Mostly Cloudy Fog And Mist | 3°C / 37°F | 3°C / 37°F | 100% | 1009 mb (29.8 in) | E 15 kph (E 9.2 mph) | - | 4SM |
| | KGCM 081338Z AUTO 10008KT 4SM BR SCT021 BKN029 03/03 A2981 RMK AO2 |
| 07:17 CST |  Mostly Cloudy Fog And Mist | 3°C / 37°F | 2°C / 36°F | 93% | 1010 mb (29.83 in) | E 19 kph (E 11.5 mph) | - | 4SM |
| | KGCM 081317Z AUTO 08010KT 4SM BR SCT005 BKN021 BKN027 03/02 A2983 RMK AO2 |
| 06:57 CST |  Overcast Fog And Mist | 3°C / 37°F | 2°C / 36°F | 93% | 1011 mb (29.85 in) | ENE 13 kph (ENE 8.1 mph) | - | 3SM |
| | KGCM 081257Z AUTO 06007KT 3SM BR BKN005 OVC021 03/02 A2985 RMK AO2 |
| 06:37 CST |  Overcast Fog And Mist | 2°C / 36°F | 2°C / 36°F | 100% | 1012 mb (29.88 in) | ENE 7 kph (ENE 4.6 mph) | - | 2 1/2SM |
| | KGCM 081237Z AUTO 06004KT 2 1/2SM BR SCT003 BKN021 OVC033 02/02 A2988 RMK AO2 |
| 06:17 CST |  Overcast Fog And Mist | 2°C / 36°F | 2°C / 36°F | 100% | 1013 mb (29.91 in) | ENE 7 kph (ENE 4.6 mph) | - | 3SM |
| | KGCM 081217Z AUTO 07004KT 3SM BR SCT003 SCT021 OVC035 02/02 A2990 RMK AO2 |
| 05:57 CST |  Overcast Fog And Mist | 2°C / 36°F | 2°C / 36°F | 100% | 1013 mb (29.91 in) | ENE 7 kph (ENE 4.6 mph) | - | 2 1/2SM |
| | KGCM 081157Z AUTO 06004KT 2 1/2SM BR SCT003 SCT027 OVC035 02/02 A2991 RMK AO2 |
| 05:37 CST |  Overcast Fog And Mist | 2°C / 36°F | 2°C / 36°F | 100% | 1013 mb (29.91 in) | E 9 kph (E 5.8 mph) | - | 2 1/2SM |
| | KGCM 081137Z AUTO 08005KT 2 1/2SM BR BKN003 BKN027 OVC035 02/02 A2992 RMK AO2 |
| 05:17 CST |  Overcast Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 1014 mb (29.94 in) | ENE 9 kph (ENE 5.8 mph) | - | 2 1/2SM |
| | KGCM 081117Z AUTO 06005KT 2 1/2SM BR BKN003 OVC034 02/01 A2993 RMK AO2 |
| 04:57 CST |  Overcast Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 1014 mb (29.94 in) | ENE 13 kph (ENE 8.1 mph) | - | 2 1/2SM |
| | KGCM 081057Z AUTO 07007KT 2 1/2SM BR BKN003 BKN008 OVC034 01/01 A2993 RMK AO2 |
| 04:37 CST |  Overcast Drizzle | 1°C / 34°F | 1°C / 34°F | 100% | 1014 mb (29.94 in) | ENE 17 kph (ENE 10.4 mph) | - | 2SM |
| | KGCM 081037Z AUTO 06009KT 2SM DZ OVC005 01/01 A2994 RMK AO2 |
| 04:17 CST |  Overcast Drizzle | 1°C / 34°F | 1°C / 34°F | 100% | 1015 mb (29.97 in) | NE 15 kph (NE 9.2 mph) | - | 2SM |
| | KGCM 081017Z AUTO 05008KT 2SM DZ OVC005 01/01 A2996 RMK AO2 |
| 03:57 CST |  Overcast Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 1015 mb (29.97 in) | NE 13 kph (NE 8.1 mph) | - | 2SM |
| | KGCM 080957Z AUTO 03007KT 2SM BR OVC005 01/01 A2998 RMK AO2 |
| 03:37 CST |  Overcast Fog And Mist | 1°C / 34°F | 0°C / 32°F | 93% | 1016 mb (30 in) | NE 13 kph (NE 8.1 mph) | - | 2SM |
| | KGCM 080937Z AUTO 04007KT 2SM BR OVC005 01/00 A2999 RMK AO2 |
| 03:17 CST |  Overcast Fog And Mist | 0°C / 32°F | 0°C / 32°F | 100% | 1016 mb (30 in) | NNE 13 kph (NNE 8.1 mph) | - | 2SM |
| | KGCM 080917Z AUTO 02007KT 2SM BR OVC005 00/00 A3001 RMK AO2 |
| 02:57 CST |  Overcast Fog And Mist | 0°C / 32°F | 0°C / 32°F | 100% | 1017 mb (30.03 in) | NNE 13 kph (NNE 8.1 mph) | - | 2SM |
| | KGCM 080857Z AUTO 02007KT 2SM BR OVC005 00/00 A3002 RMK AO2 |
| 02:37 CST |  Overcast Fog And Mist | 0°C / 32°F | 0°C / 32°F | 100% | 1017 mb (30.03 in) | N 11 kph (N 6.9 mph) | - | 2 1/2SM |
| | KGCM 080837Z AUTO 01006KT 2 1/2SM BR OVC005 00/00 A3003 RMK AO2 |
| 02:17 CST |  Overcast Fog And Mist | 0°C / 32°F | 0°C / 32°F | 100% | 1018 mb (30.06 in) | N 6 kph (N 3.5 mph) | - | 2 1/2SM |
| | KGCM 080817Z AUTO 01003KT 2 1/2SM BR OVC005 00/00 A3005 RMK AO2 |
| 01:57 CST |  Overcast Fog And Mist | 0°C / 32°F | -1°C / 30°F | 93% | 1018 mb (30.06 in) | NE 13 kph (NE 8.1 mph) | - | 2SM |
| | KGCM 080757Z AUTO 04007KT 2SM BR OVC005 00/M01 A3005 RMK AO2 |
| 01:37 CST |  Overcast Fog And Mist | -1°C / 30°F | -1°C / 30°F | 100% | 1018 mb (30.06 in) | NE 11 kph (NE 6.9 mph) | - | 2SM |
| | KGCM 080737Z AUTO 03006KT 2SM BR OVC005 M01/M01 A3006 RMK AO2 |
| 01:17 CST |  Overcast Unknown Precip | -1°C / 30°F | -1°C / 30°F | 100% | 1019 mb (30.09 in) | NNE 9 kph (NNE 5.8 mph) | - | 2SM |
| | KGCM 080717Z AUTO 02005KT 2SM UP OVC005 M01/M01 A3009 RMK AO2 |
| 00:57 CST |  Overcast Unknown Precip | -1°C / 30°F | -1°C / 30°F | 100% | 1020 mb (30.12 in) | N 7 kph (N 4.6 mph) | - | 1 3/4SM |
| | KGCM 080657Z AUTO 01004KT 1 3/4SM UP OVC005 M01/M01 A3011 RMK AO2 |
| 00:37 CST |  Overcast Unknown Precip | -1°C / 30°F | -1°C / 30°F | 100% | 1020 mb (30.12 in) | NNW 6 kph (NNW 3.5 mph) | - | 2SM |
| | KGCM 080637Z AUTO 34003KT 2SM UP BKN005 OVC010 M01/M01 A3013 RMK AO2 |
| 00:17 CST |  Overcast Unknown Precip | 0°C / 32°F | -1°C / 30°F | 93% | 1020 mb (30.12 in) | N 7 kph (N 4.6 mph) | - | 3SM |
| | KGCM 080617Z AUTO 36004KT 3SM UP BKN011 OVC019 00/M01 A3012 RMK AO2 |