| 12:15 CST |  Clear | 18°C / 64°F | 1°C / 34°F | 32% | 1010 mb (29.83 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KPIB 091815Z AUTO 32010G19KT 10SM CLR 18/01 A2984 RMK AO1 |
| 11:55 CST |  Clear | 18°C / 64°F | 2°C / 36°F | 34% | 1010 mb (29.83 in) | NW 7 kph (NW 4.6 mph) | - | 10SM |
| | KPIB 091755Z AUTO 31004KT 10SM CLR 18/02 A2984 RMK AO1 10190 20160 52007 |
| 11:35 CST |  Clear | 18°C / 64°F | 3°C / 37°F | 37% | 1011 mb (29.85 in) | NNW 7 kph (NNW 4.6 mph) | - | 10SM |
| | KPIB 091735Z AUTO 33004G16KT 10SM CLR 18/03 A2986 RMK AO1 |
| 11:15 CST |  Clear | 18°C / 64°F | 2°C / 36°F | 34% | 1011 mb (29.85 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KPIB 091715Z AUTO 30009G17KT 10SM CLR 18/02 A2986 RMK AO1 |
| 10:55 CST |  Clear | 18°C / 64°F | 3°C / 37°F | 37% | 1012 mb (29.88 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KPIB 091655Z AUTO 32010G19KT 10SM CLR 18/03 A2987 RMK AO1 |
| 10:35 CST |  Clear | 18°C / 64°F | 3°C / 37°F | 37% | 1011 mb (29.85 in) | NW 22 kph (NW 13.8 mph) | - | 10SM |
| | KPIB 091635Z AUTO 31012G19KT 10SM CLR 18/03 A2986 RMK AO1 |
| 10:15 CST |  Clear | 18°C / 64°F | 3°C / 37°F | 37% | 1011 mb (29.85 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KPIB 091615Z AUTO 31010G21KT 280V340 10SM CLR 18/03 A2985 RMK AO1 |
| 09:55 CST |  Clear | 18°C / 64°F | 4°C / 39°F | 40% | 1011 mb (29.85 in) | NW 9 kph (NW 5.8 mph) | - | 10SM |
| | KPIB 091555Z AUTO 30005G19KT 10SM CLR 18/04 A2985 RMK AO1 |
| 09:35 CST |  Clear | 17°C / 63°F | 6°C / 43°F | 49% | 1010 mb (29.83 in) | Calm | - | 10SM |
| | KPIB 091535Z AUTO 00000KT 10SM CLR 17/06 A2984 RMK AO1 |
| 09:15 CST |  Clear | 17°C / 63°F | 7°C / 45°F | 52% | 1010 mb (29.83 in) | Calm | - | 10SM |
| | KPIB 091515Z AUTO 00000KT 10SM CLR 17/07 A2983 RMK AO1 |
| 08:55 CST |  Clear | 17°C / 63°F | 8°C / 46°F | 56% | 1010 mb (29.83 in) | Calm | - | 10SM |
| | KPIB 091455Z AUTO 00000KT 10SM CLR 17/08 A2982 RMK AO1 52030 |
| 08:35 CST |  Clear | 17°C / 63°F | 9°C / 48°F | 59% | 1009 mb (29.8 in) | Calm | - | 10SM |
| | KPIB 091435Z AUTO 00000KT 10SM CLR 17/09 A2981 RMK AO1 |
| 08:15 CST |  Clear | 17°C / 63°F | 10°C / 50°F | 64% | 1009 mb (29.8 in) | Calm | - | 10SM |
| | KPIB 091415Z AUTO 00000KT 10SM CLR 17/10 A2980 RMK AO1 |
| 07:55 CST |  Clear | 16°C / 61°F | 11°C / 52°F | 72% | 1009 mb (29.8 in) | Calm | - | 10SM |
| | KPIB 091355Z AUTO 00000KT 10SM CLR 16/11 A2980 RMK AO1 |
| 07:35 CST |  Clear | 16°C / 61°F | 11°C / 52°F | 72% | 1008 mb (29.77 in) | Calm | - | 10SM |
| | KPIB 091335Z AUTO 00000KT 10SM CLR 16/11 A2978 RMK AO1 |
| 07:15 CST |  Clear | 16°C / 61°F | 11°C / 52°F | 72% | 1008 mb (29.77 in) | Calm | - | 10SM |
| | KPIB 091315Z AUTO 00000KT 10SM CLR 16/11 A2977 RMK AO1 |
| 06:55 CST |  Clear | 16°C / 61°F | 11°C / 52°F | 72% | 1008 mb (29.77 in) | Calm | - | 10SM |
| | KPIB 091255Z AUTO 00000KT 10SM CLR 16/11 A2976 RMK AO1 |
| 06:35 CST |  Partly Cloudy | 17°C / 63°F | 12°C / 54°F | 73% | 1007 mb (29.74 in) | Calm | - | 10SM |
| | KPIB 091235Z AUTO 00000KT 10SM SCT034 17/12 A2975 RMK AO1 |
| 06:15 CST |  Overcast | 18°C / 64°F | 13°C / 55°F | 73% | 1007 mb (29.74 in) | Calm | - | 10SM |
| | KPIB 091215Z AUTO 00000KT 10SM OVC034 18/13 A2974 RMK AO1 |
| 05:55 CST |  Mostly Cloudy | 19°C / 66°F | 15°C / 59°F | 78% | 1007 mb (29.74 in) | Calm | - | 10SM |
| | KPIB 091155Z AUTO 00000KT 10SM FEW016 BKN034 BKN044 19/15 A2973 RMK AO1 60016 70099 10220 20190 52017 |
| 05:35 CST |  Overcast | 20°C / 68°F | 17°C / 63°F | 83% | 1006 mb (29.71 in) | Calm | - | 9SM |
| | KPIB 091135Z AUTO 00000KT 9SM FEW012 BKN019 OVC031 20/17 A2972 RMK AO1 |
| 05:15 CST |  Mostly Cloudy | 21°C / 70°F | 17°C / 63°F | 78% | 1006 mb (29.71 in) | Calm | - | 10SM |
| | KPIB 091115Z AUTO 00000KT 10SM BKN019 BKN025 21/17 A2970 RMK AO1 |
| 04:55 CST |  Overcast | 21°C / 70°F | 18°C / 64°F | 83% | 1005 mb (29.68 in) | Calm | - | 10SM |
| | KPIB 091055Z AUTO 00000KT 10SM BKN021 OVC028 21/18 A2969 RMK AO1 |
| 04:35 CST |  Mostly Cloudy | 21°C / 70°F | 18°C / 64°F | 83% | 1005 mb (29.68 in) | Calm | - | 10SM |
| | KPIB 091035Z AUTO 00000KT 10SM BKN021 BKN025 21/18 A2969 RMK AO1 |
| 04:15 CST |  Partly Cloudy | 21°C / 70°F | 18°C / 64°F | 83% | 1005 mb (29.68 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KPIB 091015Z AUTO 24006KT 10SM SCT019 21/18 A2969 RMK AO1 |
| 03:55 CST |  Partly Cloudy | 21°C / 70°F | 18°C / 64°F | 83% | 1005 mb (29.68 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KPIB 090955Z AUTO 22006KT 10SM FEW015 FEW026 21/18 A2968 RMK AO1 |
| 03:35 CST |  Mostly Cloudy | 21°C / 70°F | 18°C / 64°F | 83% | 1005 mb (29.68 in) | SW 13 kph (SW 8.1 mph) | - | 10SM |
| | KPIB 090935Z AUTO 23007KT 10SM SCT017 BKN024 21/18 A2968 RMK AO1 |
| 03:15 CST |  Overcast | 21°C / 70°F | 18°C / 64°F | 83% | 1005 mb (29.68 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KPIB 090915Z AUTO 23006KT 10SM SCT015 OVC025 21/18 A2968 RMK AO1 TSNO |
| 02:55 CST |  Overcast | 21°C / 70°F | 18°C / 64°F | 83% | 1005 mb (29.68 in) | SW 15 kph (SW 9.2 mph) | - | 10SM |
| | KPIB 090855Z AUTO 23008KT 10SM BKN015 OVC023 21/18 A2968 RMK AO1 60016 52003 |
| 02:35 CST |  Overcast | 22°C / 72°F | 18°C / 64°F | 78% | 1005 mb (29.68 in) | SW 15 kph (SW 9.2 mph) | - | 10SM |
| | KPIB 090835Z AUTO 23008KT 200V270 10SM BKN019 OVC025 22/18 A2968 RMK AO1 |
| 02:15 CST |  Overcast | 21°C / 70°F | 18°C / 64°F | 83% | 1005 mb (29.68 in) | SW 11 kph (SW 6.9 mph) | - | 9SM |
| | KPIB 090815Z AUTO 22006KT 9SM FEW013 BKN021 OVC038 21/18 A2967 RMK AO1 |
| 01:55 CST |  Overcast | 21°C / 70°F | 19°C / 66°F | 88% | 1005 mb (29.68 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KPIB 090755Z AUTO 23004KT 10SM FEW015 BKN022 OVC033 21/19 A2967 RMK AO1 |
| 01:35 CST |  Mostly Cloudy | 21°C / 70°F | 18°C / 64°F | 83% | 1005 mb (29.68 in) | SW 13 kph (SW 8.1 mph) | - | 10SM |
| | KPIB 090735Z AUTO 23007KT 10SM SCT017 BKN026 BKN032 21/18 A2967 RMK AO1 |
| 01:15 CST |  Partly Cloudy | 21°C / 70°F | 18°C / 64°F | 83% | 1004 mb (29.65 in) | SW 13 kph (SW 8.1 mph) | - | 10SM |
| | KPIB 090715Z AUTO 22007KT 10SM FEW017 FEW024 SCT030 21/18 A2966 RMK AO1 |
| 00:55 CST |  Mostly Cloudy | 20°C / 68°F | 16°C / 61°F | 78% | 1004 mb (29.65 in) | SW 9 kph (SW 5.8 mph) | 4.06 mm (0.16 in) | 10SM |
| | KPIB 090655Z AUTO 21005KT 10SM SCT025 BKN065 BKN095 20/16 A2966 RMK AO1 TSB0558E25 P0016 |
| 00:35 CST |  Overcast | 20°C / 68°F | 17°C / 63°F | 83% | 1005 mb (29.68 in) | SW 15 kph (SW 9.2 mph) | 4.06 mm (0.16 in) | 10SM |
| | KPIB 090635Z AUTO 22008G19KT 190V250 10SM SCT013 BKN065 OVC120 20/17 A2967 RMK AO1 TSB0558E25 P0016 |
| 00:15 CST |  Overcast Thunder Storms | 21°C / 70°F | 17°C / 63°F | 78% | 1005 mb (29.68 in) | NW 19 kph (NW 11.5 mph) | 0.76 mm (0.03 in) | 9SM |
| | KPIB 090615Z AUTO 30010G21KT 9SM TS FEW010 BKN015 OVC025 21/17 A2968 RMK AO1 LTG DSNT NE TSB0558 P0003 |