| 12:15 CST |  Mostly Cloudy | -3°C / 27°F | -10°C / 14°F | 59% | 1022 mb (30.18 in) | WNW 19 kph (WNW 11.5 mph) | - | 10SM |
| | KFFL 041815Z AUTO 29010KT 10SM BKN031 M03/M10 A3019 RMK AO2 |
| 11:55 CST |  Mostly Cloudy | -2°C / 28°F | -10°C / 14°F | 55% | 1023 mb (30.21 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KFFL 041755Z AUTO 25006KT 10SM BKN031 M02/M10 A3020 RMK AO2 |
| 11:35 CST |  Overcast | -3°C / 27°F | -10°C / 14°F | 59% | 1023 mb (30.21 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KFFL 041735Z AUTO 26008KT 10SM SCT025 OVC032 M03/M10 A3021 RMK AO2 |
| 11:15 CST |  Overcast | -3°C / 27°F | -10°C / 14°F | 59% | 1023 mb (30.21 in) | WNW 17 kph (WNW 10.4 mph) | - | 10SM |
| | KFFL 041715Z AUTO 29009KT 10SM OVC032 M03/M10 A3022 RMK AO2 |
| 10:55 CST |  Overcast | -3°C / 27°F | -10°C / 14°F | 59% | 1024 mb (30.24 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KFFL 041655Z AUTO 27010G14KT 10SM OVC031 M03/M10 A3023 RMK AO2 |
| 10:35 CST |  Overcast | -4°C / 25°F | -10°C / 14°F | 63% | 1024 mb (30.24 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KFFL 041635Z AUTO 28010KT 10SM OVC029 M04/M10 A3023 RMK AO2 |
| 10:15 CST |  Mostly Cloudy | -3°C / 27°F | -10°C / 14°F | 59% | 1024 mb (30.24 in) | W 20 kph (W 12.7 mph) | - | 10SM |
| | KFFL 041615Z AUTO 28011KT 10SM SCT017 BKN027 M03/M10 A3023 RMK AO2 |
| 09:55 CST |  Mostly Cloudy Light Snow | -5°C / 23°F | -9°C / 16°F | 74% | 1024 mb (30.24 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KFFL 041555Z AUTO 27010KT 10SM -SN SCT019 BKN026 M05/M09 A3023 RMK AO2 |
| 09:35 CST |  Overcast Light Snow | -4°C / 25°F | -8°C / 18°F | 74% | 1024 mb (30.24 in) | W 17 kph (W 10.4 mph) | - | 7SM |
| | KFFL 041535Z AUTO 27009KT 7SM -SN OVC024 M04/M08 A3023 RMK AO2 |
| 09:15 CST |  Overcast | -4°C / 25°F | -9°C / 16°F | 69% | 1023 mb (30.21 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KFFL 041515Z AUTO 25009KT 10SM OVC026 M04/M09 A3022 RMK AO2 |
| 08:55 CST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1023 mb (30.21 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KFFL 041455Z AUTO 26008KT 10SM OVC028 M04/M08 A3022 RMK AO2 |
| 08:35 CST |  Overcast Light Snow | -5°C / 23°F | -8°C / 18°F | 80% | 1023 mb (30.21 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KFFL 041435Z AUTO 25005KT 10SM -SN OVC028 M05/M08 A3022 RMK AO2 |
| 08:15 CST |  Overcast | -6°C / 21°F | -9°C / 16°F | 80% | 1023 mb (30.21 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KFFL 041415Z AUTO 30003KT 10SM OVC026 M06/M09 A3022 RMK AO2 |
| 07:55 CST |  Overcast Light Snow | -6°C / 21°F | -9°C / 16°F | 80% | 1023 mb (30.21 in) | Calm | - | 7SM |
| | KFFL 041355Z AUTO 00000KT 7SM -SN OVC026 M06/M09 A3022 RMK AO2 |
| 07:35 CST |  Overcast Light Snow | -6°C / 21°F | -10°C / 14°F | 74% | 1023 mb (30.21 in) | WNW 6 kph (WNW 3.5 mph) | - | 7SM |
| | KFFL 041335Z AUTO 29003KT 7SM -SN OVC026 M06/M10 A3022 RMK AO2 |
| 07:15 CST |  Overcast Light Snow | -6°C / 21°F | -10°C / 14°F | 74% | 1023 mb (30.21 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KFFL 041315Z AUTO 27004KT 10SM -SN OVC028 M06/M10 A3022 RMK AO2 |
| 06:55 CST |  Overcast | -6°C / 21°F | -10°C / 14°F | 74% | 1023 mb (30.21 in) | W 9 kph (W 5.8 mph) | - | 10SM |
| | KFFL 041255Z AUTO 28005KT 10SM OVC028 M06/M10 A3022 RMK AO2 |
| 06:35 CST |  Overcast | -6°C / 21°F | -10°C / 14°F | 74% | 1023 mb (30.21 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KFFL 041235Z AUTO 30007KT 10SM OVC028 M06/M10 A3021 RMK AO2 |
| 06:15 CST |  Overcast | -6°C / 21°F | -10°C / 14°F | 74% | 1023 mb (30.21 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KFFL 041215Z AUTO 31009KT 10SM OVC028 M06/M10 A3021 RMK AO2 |
| 05:55 CST |  Mostly Cloudy | -6°C / 21°F | -10°C / 14°F | 74% | 1023 mb (30.21 in) | NW 15 kph (NW 9.2 mph) | - | 10SM |
| | KFFL 041155Z AUTO 30008KT 10SM BKN026 M06/M10 A3021 RMK AO2 |
| 05:35 CST |  Overcast | -5°C / 23°F | -10°C / 14°F | 68% | 1023 mb (30.21 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KFFL 041135Z AUTO 30009KT 10SM OVC026 M05/M10 A3021 RMK AO2 |
| 05:15 CST |  Overcast | -5°C / 23°F | -10°C / 14°F | 68% | 1023 mb (30.21 in) | NW 20 kph (NW 12.7 mph) | - | 10SM |
| | KFFL 041115Z AUTO 30011KT 10SM OVC026 M05/M10 A3021 RMK AO2 |
| 04:55 CST |  Overcast | -5°C / 23°F | -9°C / 16°F | 74% | 1023 mb (30.21 in) | NW 22 kph (NW 13.8 mph) | - | 10SM |
| | KFFL 041055Z AUTO 30012KT 10SM OVC026 M05/M09 A3021 RMK AO2 |
| 04:35 CST |  Mostly Cloudy | -5°C / 23°F | -9°C / 16°F | 74% | 1023 mb (30.21 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KFFL 041035Z AUTO 30009KT 10SM BKN028 M05/M09 A3021 RMK AO2 |
| 04:15 CST |  Clear | -6°C / 21°F | -10°C / 14°F | 74% | 1023 mb (30.21 in) | WNW 15 kph (WNW 9.2 mph) | - | 10SM |
| | KFFL 041015Z AUTO 29008KT 10SM CLR M06/M10 A3021 RMK AO2 |
| 03:55 CST |  Partly Cloudy | -5°C / 23°F | -9°C / 16°F | 74% | 1023 mb (30.21 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KFFL 040955Z AUTO 28010KT 10SM SCT028 M05/M09 A3021 RMK AO2 |
| 03:35 CST |  Partly Cloudy | -5°C / 23°F | -10°C / 14°F | 68% | 1023 mb (30.21 in) | W 15 kph (W 9.2 mph) | - | 10SM |
| | KFFL 040935Z AUTO 28008KT 10SM SCT028 M05/M10 A3021 RMK AO2 |
| 03:15 CST |  Mostly Cloudy | -5°C / 23°F | -9°C / 16°F | 74% | 1023 mb (30.21 in) | W 26 kph (W 16.1 mph) | - | 10SM |
| | KFFL 040915Z AUTO 28014KT 10SM BKN028 M05/M09 A3020 RMK AO2 |
| 02:55 CST |  Overcast Light Snow | -4°C / 25°F | -8°C / 18°F | 74% | 1023 mb (30.21 in) | W 24 kph (W 15 mph) | - | 10SM |
| | KFFL 040855Z AUTO 28013KT 10SM -SN OVC026 M04/M08 A3020 RMK AO2 |
| 02:35 CST |  Overcast Light Snow | -4°C / 25°F | -8°C / 18°F | 74% | 1023 mb (30.21 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KFFL 040835Z AUTO 28010KT 10SM -SN OVC024 M04/M08 A3020 RMK AO2 |
| 02:15 CST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1023 mb (30.21 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KFFL 040815Z AUTO 27010G14KT 10SM OVC024 M04/M08 A3020 RMK AO2 |
| 01:55 CST |  Overcast Light Snow | -3°C / 27°F | -8°C / 18°F | 69% | 1023 mb (30.21 in) | WNW 19 kph (WNW 11.5 mph) | - | 10SM |
| | KFFL 040755Z AUTO 29010KT 10SM -SN OVC024 M03/M08 A3020 RMK AO2 |
| 01:35 CST |  Overcast Light Snow | -3°C / 27°F | -8°C / 18°F | 69% | 1023 mb (30.21 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KFFL 040735Z AUTO 28010KT 10SM -SN OVC026 M03/M08 A3020 RMK AO2 |
| 01:15 CST |  Mostly Cloudy | -4°C / 25°F | -8°C / 18°F | 74% | 1023 mb (30.21 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KFFL 040715Z AUTO 30010KT 10SM BKN028 BKN036 M04/M08 A3020 RMK AO2 |
| 00:55 CST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1022 mb (30.18 in) | NW 22 kph (NW 13.8 mph) | - | 10SM |
| | KFFL 040655Z AUTO 30012G17KT 10SM OVC036 M04/M08 A3019 RMK AO2 |
| 00:35 CST |  Overcast Light Snow | -4°C / 25°F | -8°C / 18°F | 74% | 1022 mb (30.18 in) | WNW 22 kph (WNW 13.8 mph) | - | 10SM |
| | KFFL 040635Z AUTO 29012KT 10SM -SN OVC036 M04/M08 A3019 RMK AO2 |