| 08:15 CST |  Overcast | -10°C / 14°F | -11°C / 12°F | 92% | 1020 mb (30.12 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KCAV 041415Z AUTO 25006KT 10SM OVC033 M10/M11 A3013 RMK AO2 |
| 07:55 CST |  Overcast | -10°C / 14°F | -11°C / 12°F | 92% | 1020 mb (30.12 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KCAV 041355Z AUTO 24006KT 10SM OVC035 M10/M11 A3013 RMK AO2 |
| 07:35 CST |  Overcast | -10°C / 14°F | -11°C / 12°F | 92% | 1020 mb (30.12 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KCAV 041335Z AUTO 25007KT 10SM BKN029 OVC035 M10/M11 A3013 RMK AO2 |
| 07:15 CST |  Overcast Light Snow | -10°C / 14°F | -11°C / 12°F | 92% | 1020 mb (30.12 in) | SSW 15 kph (SSW 9.2 mph) | - | 5SM |
| | KCAV 041315Z AUTO 25008KT 5SM -SN OVC031 M10/M11 A3013 RMK AO2 |
| 06:55 CST |  Overcast Light Snow | -10°C / 14°F | -11°C / 12°F | 92% | 1020 mb (30.12 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KCAV 041255Z AUTO 25006KT 10SM -SN OVC029 M10/M11 A3013 RMK AO2 |
| 06:35 CST |  Overcast Light Snow | -10°C / 14°F | -11°C / 12°F | 92% | 1020 mb (30.12 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KCAV 041235Z AUTO 25006KT 10SM -SN OVC027 M10/M11 A3013 RMK AO2 |
| 06:15 CST |  Mostly Cloudy Light Snow | -12°C / 10°F | -13°C / 9°F | 92% | 1020 mb (30.12 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KCAV 041215Z AUTO 25005KT 10SM -SN SCT023 BKN029 M12/M13 A3013 RMK AO2 |
| 05:55 CST |  Partly Cloudy | -13°C / 9°F | -15°C / 5°F | 85% | 1020 mb (30.12 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KCAV 041155Z AUTO 25005KT 10SM SCT024 M13/M15 A3013 RMK AO2 |
| 05:35 CST |  Clear | -13°C / 9°F | -15°C / 5°F | 85% | 1020 mb (30.12 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KCAV 041135Z AUTO 25005KT 10SM CLR M13/M15 A3013 RMK AO2 |
| 05:15 CST |  Clear | -12°C / 10°F | -14°C / 7°F | 85% | 1020 mb (30.12 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KCAV 041115Z AUTO 25007KT 10SM CLR M12/M14 A3013 RMK AO2 |
| 04:55 CST |  Clear | -12°C / 10°F | -13°C / 9°F | 92% | 1020 mb (30.12 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KCAV 041055Z AUTO 26008KT 10SM CLR M12/M13 A3013 RMK AO2 |
| 04:35 CST |  Clear | -12°C / 10°F | -13°C / 9°F | 92% | 1021 mb (30.15 in) | W 15 kph (W 9.2 mph) | - | 10SM |
| | KCAV 041035Z AUTO 27008KT 10SM CLR M12/M13 A3014 RMK AO2 |
| 04:15 CST |  Clear | -12°C / 10°F | -13°C / 9°F | 92% | 1021 mb (30.15 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KCAV 041015Z AUTO 26007KT 10SM CLR M12/M13 A3014 RMK AO2 |
| 03:55 CST |  Clear | -12°C / 10°F | -13°C / 9°F | 92% | 1021 mb (30.15 in) | W 15 kph (W 9.2 mph) | - | 10SM |
| | KCAV 040955Z AUTO 27008KT 10SM CLR M12/M13 A3014 RMK AO2 |
| 03:35 CST |  Clear | -12°C / 10°F | -13°C / 9°F | 92% | 1021 mb (30.15 in) | W 13 kph (W 8.1 mph) | - | 10SM |
| | KCAV 040935Z AUTO 27007KT 10SM CLR M12/M13 A3014 RMK AO2 |
| 03:15 CST |  Clear | -11°C / 12°F | -13°C / 9°F | 85% | 1021 mb (30.15 in) | W 15 kph (W 9.2 mph) | - | 10SM |
| | KCAV 040915Z AUTO 27008KT 10SM CLR M11/M13 A3015 RMK AO2 |
| 02:55 CST |  Clear | -11°C / 12°F | -13°C / 9°F | 85% | 1021 mb (30.15 in) | W 15 kph (W 9.2 mph) | - | 10SM |
| | KCAV 040855Z AUTO 27008KT 10SM CLR M11/M13 A3015 RMK AO2 |
| 02:35 CST |  Clear | -11°C / 12°F | -13°C / 9°F | 85% | 1021 mb (30.15 in) | W 15 kph (W 9.2 mph) | - | 10SM |
| | KCAV 040835Z AUTO 27008KT 10SM CLR M11/M13 A3015 RMK AO2 |
| 02:15 CST |  Clear | -12°C / 10°F | -13°C / 9°F | 92% | 1021 mb (30.15 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KCAV 040815Z AUTO 26006KT 10SM CLR M12/M13 A3015 RMK AO2 |
| 01:55 CST |  Clear | -11°C / 12°F | -12°C / 10°F | 92% | 1021 mb (30.15 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KCAV 040755Z AUTO 26008KT 10SM CLR M11/M12 A3014 RMK AO2 |
| 01:35 CST |  Clear | -11°C / 12°F | -13°C / 9°F | 85% | 1021 mb (30.15 in) | W 11 kph (W 6.9 mph) | - | 10SM |
| | KCAV 040735Z AUTO 27006KT 10SM CLR M11/M13 A3014 RMK AO2 |
| 00:55 CST |  Clear | -10°C / 14°F | -12°C / 10°F | 85% | 1020 mb (30.12 in) | W 11 kph (W 6.9 mph) | - | 10SM |
| | KCAV 040655Z AUTO 27006KT 10SM CLR M10/M12 A3013 RMK AO2 |
| 00:35 CST |  Clear | -10°C / 14°F | -12°C / 10°F | 85% | 1021 mb (30.15 in) | W 15 kph (W 9.2 mph) | - | 10SM |
| | KCAV 040635Z AUTO 27008KT 10SM CLR M10/M12 A3014 RMK AO2 |