| 02:52 CST |  Overcast | 4°C / 39°F | 2°C / 36°F | 87% | 986 mb (29.12 in) | SSW 37 kph (SSW 23 mph) | - | 10SM |
| | KSPI 090852Z 25020G29KT 10SM FEW017 BKN040 OVC047 04/02 A2911 RMK AO2 PK WND 24029/0851 SLP862 60008 T00440017 55001 |
| 02:07 CST |  Overcast | 4°C / 39°F | 2°C / 36°F | 87% | 985 mb (29.09 in) | SSW 33 kph (SSW 20.7 mph) | - | 10SM |
| | KSPI 090807Z 24018G25KT 10SM FEW016 OVC046 04/02 A2910 RMK AO2 |
| 01:52 CST |  Overcast | 4°C / 39°F | 3°C / 37°F | 93% | 986 mb (29.12 in) | SSW 28 kph (SSW 17.3 mph) | 0.25 mm (0.01 in) | 10SM |
| | KSPI 090752Z 24015G21KT 10SM BKN014 BKN019 OVC046 04/03 A2911 RMK AO2 RAE06 SLP859 P0001 T00440028 |
| 01:42 CST |  Overcast | 4°C / 39°F | 3°C / 37°F | 93% | 985 mb (29.09 in) | SSW 24 kph (SSW 15 mph) | 0.25 mm (0.01 in) | 10SM |
| | KSPI 090742Z 24013G21KT 10SM BKN013 OVC046 04/03 A2910 RMK AO2 RAE06 P0001 |
| 01:31 CST |  Overcast | 5°C / 41°F | 3°C / 37°F | 87% | 986 mb (29.12 in) | SSW 26 kph (SSW 16.1 mph) | 0.25 mm (0.01 in) | 10SM |
| | KSPI 090731Z 24014G22KT 10SM OVC015 05/03 A2911 RMK AO2 RAE06 P0001 |
| 01:06 CST |  Overcast | 4°C / 39°F | 3°C / 37°F | 93% | 986 mb (29.12 in) | SSW 22 kph (SSW 13.8 mph) | 0.25 mm (0.01 in) | 10SM |
| | KSPI 090706Z 24012G23KT 10SM BKN011 BKN016 OVC033 04/03 A2911 RMK AO2 RAE06 P0001 |
| 00:59 CST |  Overcast Light Rain | 4°C / 39°F | 3°C / 37°F | 93% | 986 mb (29.12 in) | SSW 28 kph (SSW 17.3 mph) | 0.25 mm (0.01 in) | 10SM |
| | KSPI 090659Z 24015G23KT 10SM -RA BKN009 BKN016 OVC050 04/03 A2911 RMK AO2 CIG 007V014 P0001 |
| 00:52 CST |  Overcast Light Rain | 4°C / 39°F | 3°C / 37°F | 93% | 986 mb (29.12 in) | SSW 24 kph (SSW 15 mph) | 1.78 mm (0.07 in) | 10SM |
| | KSPI 090652Z 24013KT 10SM -RA BKN011 BKN030 OVC050 04/03 A2911 RMK AO2 CIG 007V014 SLP859 P0007 T00440028 |
| 00:15 CST |  Overcast Rain | 4°C / 39°F | 3°C / 37°F | 93% | 986 mb (29.12 in) | SW 19 kph (SW 11.5 mph) | 1.52 mm (0.06 in) | 4SM |
| | KSPI 090615Z 22010G20KT 4SM RA BR BKN005 BKN009 OVC014 04/03 A2912 RMK AO2 P0006 |