| 13:15 EST |  Overcast | -7°C / 19°F | -9°C / 16°F | 86% | 979 mb (28.91 in) | NE 26 kph (NE 16.1 mph) | - | 1 1/4SM |
| | KCIU 091815Z AUTO 05014G20KT 1 1/4SM BKN011 OVC017 M07/M09 A2892 RMK AO1 |
| 12:55 EST |  Overcast | -7°C / 19°F | -10°C / 14°F | 79% | 980 mb (28.94 in) | NE 33 kph (NE 20.7 mph) | - | 1/2SM |
| | KCIU 091755Z AUTO 05018G22KT 1/2SM OVC011 M07/M10 A2893 RMK AO1 11060 21070 57051 |
| 12:35 EST |  Overcast | -7°C / 19°F | -10°C / 14°F | 79% | 980 mb (28.94 in) | NE 28 kph (NE 17.3 mph) | - | 1/2SM |
| | KCIU 091735Z AUTO 05015KT 1/2SM OVC011 M07/M10 A2895 RMK AO1 |
| 12:15 EST |  Overcast | -7°C / 19°F | -10°C / 14°F | 79% | 981 mb (28.97 in) | ENE 26 kph (ENE 16.1 mph) | - | 1/2SM |
| | KCIU 091715Z AUTO 06014G20KT 1/2SM OVC009 M07/M10 A2897 RMK AO1 |
| 11:55 EST |  Overcast | -7°C / 19°F | -9°C / 16°F | 86% | 981 mb (28.97 in) | ENE 30 kph (ENE 18.4 mph) | - | 1/2SM |
| | KCIU 091655Z AUTO 06016G26KT 1/2SM OVC009 M07/M09 A2897 RMK AO1 |
| 11:35 EST |  Overcast | -7°C / 19°F | -10°C / 14°F | 79% | 982 mb (29 in) | ENE 35 kph (ENE 21.9 mph) | - | 1/2SM |
| | KCIU 091635Z AUTO 06019G25KT 1/2SM OVC009 M07/M10 A2899 RMK AO1 |
| 11:15 EST |  Overcast | -7°C / 19°F | -9°C / 16°F | 86% | 982 mb (29 in) | ENE 35 kph (ENE 21.9 mph) | - | 1/2SM |
| | KCIU 091615Z AUTO 06019G27KT 1/2SM OVC009 M07/M09 A2901 RMK AO1 |
| 10:55 EST |  Overcast | -7°C / 19°F | -9°C / 16°F | 86% | 983 mb (29.03 in) | ENE 39 kph (ENE 24.2 mph) | - | 1/2SM |
| | KCIU 091555Z AUTO 07021G27KT 1/2SM OVC011 M07/M09 A2903 RMK AO1 |
| 10:35 EST |  Overcast | -7°C / 19°F | -10°C / 14°F | 79% | 983 mb (29.03 in) | ENE 35 kph (ENE 21.9 mph) | - | 3/4SM |
| | KCIU 091535Z AUTO 07019G29KT 3/4SM SCT010 OVC016 M07/M10 A2904 RMK AO1 |
| 10:15 EST |  Overcast | -7°C / 19°F | -9°C / 16°F | 86% | 984 mb (29.06 in) | ENE 46 kph (ENE 28.8 mph) | - | 1/2SM |
| | KCIU 091515Z AUTO 07025G31KT 1/2SM OVC012 M07/M09 A2906 RMK AO1 |
| 09:55 EST |  Overcast | -7°C / 19°F | -9°C / 16°F | 86% | 985 mb (29.09 in) | ENE 43 kph (ENE 26.5 mph) | - | 1/2SM |
| | KCIU 091455Z AUTO 07023G32KT 1/2SM OVC010 M07/M09 A2908 RMK AO1 57081 |
| 09:35 EST |  Overcast | -7°C / 19°F | -9°C / 16°F | 86% | 985 mb (29.09 in) | ENE 41 kph (ENE 25.3 mph) | - | 1/4SM |
| | KCIU 091435Z AUTO 07022G31KT 1/4SM OVC006 M07/M09 A2910 RMK AO1 |
| 09:15 EST |  Overcast | -7°C / 19°F | -9°C / 16°F | 86% | 986 mb (29.12 in) | ENE 35 kph (ENE 21.9 mph) | - | 1/4SM |
| | KCIU 091415Z AUTO 07019G27KT 1/4SM OVC006 M07/M09 A2913 RMK AO1 |
| 08:55 EST |  Overcast | -7°C / 19°F | -9°C / 16°F | 86% | 988 mb (29.18 in) | ENE 41 kph (ENE 25.3 mph) | - | 1/4SM |
| | KCIU 091355Z AUTO 07022G30KT 1/4SM OVC006 M07/M09 A2917 RMK AO1 |
| 08:35 EST |  Overcast | -6°C / 21°F | -9°C / 16°F | 80% | 988 mb (29.18 in) | ENE 35 kph (ENE 21.9 mph) | - | 1/2SM |
| | KCIU 091335Z AUTO 07019G26KT 1/2SM OVC011 M06/M09 A2919 RMK AO1 |
| 08:15 EST |  Overcast | -6°C / 21°F | -9°C / 16°F | 80% | 989 mb (29.21 in) | ENE 32 kph (ENE 19.6 mph) | - | 1SM |
| | KCIU 091315Z AUTO 07017G24KT 1SM OVC013 M06/M09 A2921 RMK AO1 |
| 07:55 EST |  Overcast | -6°C / 21°F | -9°C / 16°F | 80% | 990 mb (29.23 in) | ENE 32 kph (ENE 19.6 mph) | - | 1 1/2SM |
| | KCIU 091255Z AUTO 07017G23KT 1 1/2SM SCT010 OVC018 M06/M09 A2924 RMK AO1 |
| 07:35 EST |  Overcast | -6°C / 21°F | -9°C / 16°F | 80% | 991 mb (29.26 in) | ENE 28 kph (ENE 17.3 mph) | - | 1 3/4SM |
| | KCIU 091235Z AUTO 07015G22KT 1 3/4SM SCT010 BKN018 OVC025 M06/M09 A2927 RMK AO1 |
| 07:15 EST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 992 mb (29.29 in) | ENE 28 kph (ENE 17.3 mph) | - | 2SM |
| | KCIU 091215Z AUTO 07015G19KT 2SM SCT012 BKN020 OVC026 M06/M08 A2930 RMK AO1 |
| 06:55 EST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 993 mb (29.32 in) | ENE 30 kph (ENE 18.4 mph) | - | 1 1/2SM |
| | KCIU 091155Z AUTO 07016G20KT 1 1/2SM BKN011 OVC018 M06/M08 A2932 RMK AO1 60001 70001 11020 21060 57058 |
| 06:35 EST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 993 mb (29.32 in) | E 33 kph (E 20.7 mph) | - | 1 1/4SM |
| | KCIU 091135Z AUTO 08018G26KT 1 1/4SM OVC011 M06/M08 A2933 RMK AO1 |
| 06:15 EST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 993 mb (29.32 in) | E 32 kph (E 19.6 mph) | - | 1 1/4SM |
| | KCIU 091115Z AUTO 08017G25KT 1 1/4SM OVC009 M06/M08 A2933 RMK AO1 |
| 05:55 EST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 994 mb (29.35 in) | E 46 kph (E 28.8 mph) | - | 1SM |
| | KCIU 091055Z AUTO 10025G29KT 1SM OVC009 M06/M08 A2934 RMK AO1 TSNO |
| 05:35 EST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 994 mb (29.35 in) | E 41 kph (E 25.3 mph) | - | 3/4SM |
| | KCIU 091035Z AUTO 09022G34KT 3/4SM OVC009 M06/M08 A2935 RMK AO1 TSNO |
| 05:15 EST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 995 mb (29.38 in) | E 39 kph (E 24.2 mph) | - | 3/4SM |
| | KCIU 091015Z AUTO 09021G34KT 3/4SM OVC009 M06/M08 A2938 RMK AO1 TSNO |
| 04:55 EST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 996 mb (29.41 in) | E 41 kph (E 25.3 mph) | - | 3/4SM |
| | KCIU 090955Z AUTO 09022G30KT 3/4SM OVC009 M06/M08 A2941 RMK AO1 TSNO |
| 04:35 EST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 997 mb (29.44 in) | E 32 kph (E 19.6 mph) | - | 1SM |
| | KCIU 090935Z AUTO 09017G30KT 1SM OVC009 M05/M08 A2945 RMK AO1 |
| 04:15 EST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 998 mb (29.47 in) | E 41 kph (E 25.3 mph) | - | 1 1/2SM |
| | KCIU 090915Z AUTO 09022G31KT 1 1/2SM BKN013 OVC018 M04/M08 A2947 RMK AO1 |
| 03:55 EST |  Overcast | -4°C / 25°F | -7°C / 19°F | 80% | 999 mb (29.5 in) | E 44 kph (E 27.6 mph) | 0.25 mm (0.01 in) | 1 1/2SM |
| | KCIU 090855Z AUTO 09024G34KT 1 1/2SM OVC015 M04/M07 A2949 RMK AO1 P0001 60001 57085 |
| 03:35 EST |  Overcast | -4°C / 25°F | -7°C / 19°F | 80% | 1000 mb (29.53 in) | E 39 kph (E 24.2 mph) | 0.25 mm (0.01 in) | 2 1/2SM |
| | KCIU 090835Z AUTO 09021G31KT 2 1/2SM BKN012 OVC017 M04/M07 A2952 RMK AO1 P0001 |
| 03:15 EST |  Overcast | -4°C / 25°F | -6°C / 21°F | 86% | 1001 mb (29.56 in) | E 41 kph (E 25.3 mph) | 0.25 mm (0.01 in) | 1 3/4SM |
| | KCIU 090815Z AUTO 09022G28KT 1 3/4SM BKN010 OVC017 M04/M06 A2955 RMK AO1 P0001 |
| 02:55 EST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1001 mb (29.56 in) | E 41 kph (E 25.3 mph) | - | 1 3/4SM |
| | KCIU 090755Z AUTO 09022G28KT 1 3/4SM BKN010 OVC017 M03/M06 A2957 RMK AO1 |
| 02:35 EST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1003 mb (29.62 in) | E 35 kph (E 21.9 mph) | - | 1 1/2SM |
| | KCIU 090735Z AUTO 09019G27KT 1 1/2SM BKN008 OVC015 M03/M06 A2962 RMK AO1 |
| 02:15 EST |  Overcast | -3°C / 27°F | -5°C / 23°F | 86% | 1004 mb (29.65 in) | E 39 kph (E 24.2 mph) | - | 1SM |
| | KCIU 090715Z AUTO 10021G25KT 1SM OVC008 M03/M05 A2965 RMK AO1 |
| 01:55 EST |  Overcast | -3°C / 27°F | -5°C / 23°F | 86% | 1005 mb (29.68 in) | E 37 kph (E 23 mph) | - | 1SM |
| | KCIU 090655Z AUTO 10020G26KT 1SM BKN006 OVC014 M03/M05 A2968 RMK AO1 |
| 01:35 EST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1005 mb (29.68 in) | E 32 kph (E 19.6 mph) | - | 1 1/2SM |
| | KCIU 090635Z AUTO 10017G23KT 1 1/2SM BKN006 OVC014 M02/M04 A2969 RMK AO1 |
| 01:15 EST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1006 mb (29.71 in) | ESE 32 kph (ESE 19.6 mph) | - | 1 3/4SM |
| | KCIU 090615Z AUTO 11017G27KT 1 3/4SM BKN008 OVC014 M02/M04 A2971 RMK AO1 |
| 00:55 EST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1007 mb (29.74 in) | ESE 39 kph (ESE 24.2 mph) | - | 1 3/4SM |
| | KCIU 090555Z AUTO 11021G25KT 1 3/4SM BKN008 OVC013 M02/M04 A2974 RMK AO1 11020 21040 410201080 57061 |
| 00:35 EST |  Overcast | -3°C / 27°F | -4°C / 25°F | 93% | 1008 mb (29.77 in) | E 24 kph (E 15 mph) | - | 3SM |
| | KCIU 090535Z AUTO 09013KT 3SM SCT008 OVC013 M03/M04 A2977 RMK AO1 |
| 00:15 EST |  Overcast | -3°C / 27°F | -5°C / 23°F | 86% | 1009 mb (29.8 in) | E 22 kph (E 13.8 mph) | - | 3SM |
| | KCIU 090515Z AUTO 08012KT 3SM BKN008 OVC015 M03/M05 A2980 RMK AO1 |