| 04:35 CST |  Clear | -21°C / -6°F | -24°C / -11°F | 77% | 1028 mb (30.36 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KOEO 151035Z AUTO 24004KT 10SM CLR M21/M24 A3037 RMK AO2 |
| 04:15 CST |  Clear | -21°C / -6°F | -24°C / -11°F | 77% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KOEO 151015Z AUTO 00000KT 10SM CLR M21/M24 A3036 RMK AO2 |
| 03:55 CST |  Partly Cloudy | -20°C / -4°F | -23°C / -9°F | 77% | 1028 mb (30.36 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KOEO 150955Z AUTO 26003KT 10SM SCT070 M20/M23 A3036 RMK AO2 |
| 03:35 CST |  Overcast | -20°C / -4°F | -23°C / -9°F | 77% | 1028 mb (30.36 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KOEO 150935Z AUTO 28004KT 10SM OVC070 M20/M23 A3035 RMK AO2 |
| 03:15 CST |  Mostly Cloudy | -20°C / -4°F | -23°C / -9°F | 77% | 1027 mb (30.33 in) | SSW 6 kph (SSW 3.5 mph) | - | 7SM |
| | KOEO 150915Z AUTO 26003KT 7SM SCT035 SCT043 BKN070 M20/M23 A3034 RMK AO2 |
| 02:55 CST |  Overcast | -19°C / -2°F | -23°C / -9°F | 71% | 1027 mb (30.33 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KOEO 150855Z AUTO 26004KT 10SM SCT037 BKN050 OVC110 M19/M23 A3034 RMK AO2 |
| 02:35 CST |  Mostly Cloudy | -19°C / -2°F | -23°C / -9°F | 71% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KOEO 150835Z AUTO 00000KT 10SM SCT046 BKN060 BKN070 M19/M23 A3034 RMK AO2 |
| 02:15 CST |  Mostly Cloudy | -19°C / -2°F | -23°C / -9°F | 71% | 1027 mb (30.33 in) | NW 7 kph (NW 4.6 mph) | - | 10SM |
| | KOEO 150815Z AUTO 30004KT 10SM SCT050 SCT070 BKN080 M19/M23 A3033 RMK AO2 |
| 01:55 CST |  Partly Cloudy | -19°C / -2°F | -23°C / -9°F | 71% | 1027 mb (30.33 in) | WNW 9 kph (WNW 5.8 mph) | - | 10SM |
| | KOEO 150755Z AUTO 29005KT 10SM SCT080 SCT090 M19/M23 A3033 RMK AO2 |
| 01:35 CST |  Mostly Cloudy | -19°C / -2°F | -23°C / -9°F | 71% | 1026 mb (30.3 in) | NW 7 kph (NW 4.6 mph) | - | 10SM |
| | KOEO 150735Z AUTO 30004KT 10SM SCT080 BKN090 M19/M23 A3031 RMK AO2 |
| 01:15 CST |  Partly Cloudy | -19°C / -2°F | -23°C / -9°F | 71% | 1026 mb (30.3 in) | NW 9 kph (NW 5.8 mph) | - | 10SM |
| | KOEO 150715Z AUTO 30005KT 10SM SCT100 M19/M23 A3031 RMK AO2 |
| 00:55 CST |  Partly Cloudy | -21°C / -6°F | -24°C / -11°F | 77% | 1026 mb (30.3 in) | W 9 kph (W 5.8 mph) | - | 10SM |
| | KOEO 150655Z AUTO 28005KT 10SM SCT110 M21/M24 A3030 RMK AO2 |
| 00:35 CST |  Partly Cloudy | -20°C / -4°F | -23°C / -9°F | 77% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KOEO 150635Z AUTO 00000KT 10SM SCT110 M20/M23 A3029 RMK AO2 |
| 00:15 CST |  Clear | -19°C / -2°F | -23°C / -9°F | 71% | 1026 mb (30.3 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KOEO 150615Z AUTO 30003KT 10SM CLR M19/M23 A3029 RMK AO2 |