| 07:54 CST |  Mostly Cloudy Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1019 mb (30.09 in) | E 15 kph (E 9.2 mph) | - | 4SM |
| | KDEC 081354Z 09008KT 4SM BR BKN110 M01/M03 A3010 RMK AO2 SLP198 T10061028 |
| 07:37 CST |  Partly Cloudy Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1020 mb (30.12 in) | ESE 17 kph (ESE 10.4 mph) | - | 4SM |
| | KDEC 081337Z 11009KT 4SM BR SCT027 SCT110 M01/M03 A3011 RMK AO2 |
| 06:54 CST |  Overcast Hazy | -1°C / 30°F | -3°C / 27°F | 86% | 1021 mb (30.15 in) | ESE 17 kph (ESE 10.4 mph) | - | 6SM |
| | KDEC 081254Z 11009KT 6SM HZ BKN027 OVC120 M01/M03 A3014 RMK AO2 SLP213 T10061033 |
| 05:54 CST |  Overcast Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1021 mb (30.15 in) | E 15 kph (E 9.2 mph) | - | 6SM |
| | KDEC 081154Z 09008KT 6SM BR BKN025 OVC120 M01/M03 A3016 RMK AO2 SLP221 70001 T10111033 11006 21011 56019 |
| 04:54 CST |  Mostly Cloudy Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1022 mb (30.18 in) | E 13 kph (E 8.1 mph) | - | 6SM |
| | KDEC 081054Z AUTO 08007KT 6SM BR BKN110 M01/M03 A3018 RMK AO2 SLP228 T10111033 |
| 04:44 CST |  Overcast Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1022 mb (30.18 in) | E 13 kph (E 8.1 mph) | - | 6SM |
| | KDEC 081044Z AUTO 08007KT 6SM BR SCT022 OVC110 M01/M03 A3019 RMK AO2 |
| 04:23 CST |  Mostly Cloudy Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1023 mb (30.21 in) | E 15 kph (E 9.2 mph) | - | 6SM |
| | KDEC 081023Z AUTO 08008KT 6SM BR BKN022 BKN100 M01/M03 A3020 RMK AO2 |
| 03:54 CST |  Partly Cloudy Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1023 mb (30.21 in) | E 13 kph (E 8.1 mph) | - | 6SM |
| | KDEC 080954Z AUTO 09007KT 6SM BR SCT110 M01/M03 A3022 RMK AO2 SLP241 T10111033 |
| 03:12 CST |  Mostly Cloudy Hazy | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | E 17 kph (E 10.4 mph) | - | 6SM |
| | KDEC 080912Z AUTO 10009KT 6SM HZ SCT023 BKN110 M01/M03 A3023 RMK AO2 |
| 02:54 CST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | ESE 15 kph (ESE 9.2 mph) | - | 7SM |
| | KDEC 080854Z AUTO 11008KT 7SM BKN023 OVC075 M01/M03 A3024 RMK AO2 SLP247 T10061033 51002 |
| 01:54 CST |  Overcast Hazy | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | E 13 kph (E 8.1 mph) | - | 6SM |
| | KDEC 080754Z AUTO 08007KT 6SM HZ BKN070 OVC095 M01/M03 A3024 RMK AO2 SLP246 T10061033 |
| 00:54 CST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1024 mb (30.24 in) | E 9 kph (E 5.8 mph) | - | 7SM |
| | KDEC 080654Z AUTO 09005KT 7SM OVC080 M01/M03 A3025 RMK AO2 SLP249 T10061033 |