| 08:52 CST |  Clear | -23°C / -9°F | -26°C / -15°F | 77% | 1008 mb (29.77 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KISN 101452Z 22003KT 10SM CLR M23/M26 A2976 RMK AO2 SLP137 T12331261 53004 |
| 08:12 CST |  Mostly Cloudy | -23°C / -9°F | -26°C / -15°F | 77% | 1007 mb (29.74 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KISN 101412Z 22004KT 10SM SCT026 SCT035 BKN042 M23/M26 A2975 RMK AO2 |
| 07:58 CST |  Overcast | -22°C / -8°F | -26°C / -15°F | 70% | 1007 mb (29.74 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KISN 101358Z 24006KT 10SM BKN027 BKN036 OVC075 M22/M26 A2974 RMK AO2 |
| 07:52 CST |  Overcast | -22°C / -8°F | -26°C / -15°F | 70% | 1007 mb (29.74 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KISN 101352Z 24006KT 10SM SCT029 BKN055 OVC075 M22/M26 A2974 RMK AO2 SLP131 T12221256 |
| 07:24 CST |  Overcast Fog And Mist | -23°C / -9°F | -26°C / -15°F | 77% | 1007 mb (29.74 in) | SSW 9 kph (SSW 5.8 mph) | - | 9SM |
| | KISN 101324Z 24005KT 9SM BR SCT024 OVC080 M23/M26 A2975 RMK AO2 |
| 06:52 CST |  Overcast | -22°C / -8°F | -26°C / -15°F | 70% | 1007 mb (29.74 in) | SSW 13 kph (SSW 8.1 mph) | - | 7SM |
| | KISN 101252Z 24007KT 7SM BKN028 OVC041 M22/M26 A2975 RMK AO2 SLP135 T12221256 |
| 05:52 CST |  Clear | -23°C / -9°F | -26°C / -15°F | 77% | 1007 mb (29.74 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KISN 101152Z 25005KT 10SM CLR M23/M26 A2975 RMK AO2 SLP133 60000 T12331261 11167 21233 53007 |
| 04:52 CST |  Clear Fog And Mist | -22°C / -8°F | -26°C / -15°F | 70% | 1007 mb (29.74 in) | Calm | - | 10SM |
| | KISN 101052Z 00000KT 10SM BR CLR M22/M26 A2974 RMK AO2 SLP131 T12221261 |
| 03:52 CST |  Partly Cloudy Fog And Mist | -21°C / -6°F | -24°C / -11°F | 77% | 1007 mb (29.74 in) | WNW 17 kph (WNW 10.4 mph) | - | 10SM |
| | KISN 100952Z 29009KT 10SM BR FEW009 SCT055 M21/M24 A2973 RMK AO2 SLP124 T12061244 |
| 03:46 CST |  Partly Cloudy Fog And Mist | -21°C / -6°F | -24°C / -11°F | 77% | 1007 mb (29.74 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KISN 100946Z 30009KT 10SM BR FEW009 SCT028 M21/M24 A2973 RMK AO2 |
| 03:38 CST |  Mostly Cloudy Fog And Mist | -21°C / -6°F | -24°C / -11°F | 77% | 1007 mb (29.74 in) | NW 15 kph (NW 9.2 mph) | - | 9SM |
| | KISN 100938Z 30008KT 9SM BR SCT011 BKN016 M21/M24 A2973 RMK AO2 |
| 02:52 CST |  Overcast Hazy | -19°C / -2°F | -22°C / -8°F | 77% | 1007 mb (29.74 in) | NW 11 kph (NW 6.9 mph) | - | 4SM |
| | KISN 100852Z 30006KT 4SM HZ OVC010 M19/M22 A2973 RMK AO2 SLP122 60000 T11941222 53010 |
| 02:43 CST |  Overcast Hazy | -19°C / -2°F | -22°C / -8°F | 77% | 1006 mb (29.71 in) | WNW 11 kph (WNW 6.9 mph) | - | 4SM |
| | KISN 100843Z 29006KT 4SM HZ FEW007 OVC014 M19/M22 A2972 RMK AO2 |
| 02:34 CST |  Overcast Hazy | -19°C / -2°F | -22°C / -8°F | 77% | 1006 mb (29.71 in) | WNW 11 kph (WNW 6.9 mph) | - | 4SM |
| | KISN 100834Z 29006KT 4SM HZ FEW007 OVC018 M19/M22 A2972 RMK AO2 |
| 02:14 CST |  Overcast Hazy | -19°C / -2°F | -22°C / -8°F | 77% | 1006 mb (29.71 in) | NW 15 kph (NW 9.2 mph) | - | 5SM |
| | KISN 100814Z 30008KT 5SM HZ OVC028 M19/M22 A2972 RMK AO2 |
| 01:58 CST |  Mostly Cloudy | -19°C / -2°F | -22°C / -8°F | 77% | 1006 mb (29.71 in) | WNW 15 kph (WNW 9.2 mph) | - | 9SM |
| | KISN 100758Z 29008KT 9SM BKN032 M19/M22 A2971 RMK AO2 |
| 01:52 CST |  Mostly Cloudy | -19°C / -2°F | -22°C / -8°F | 77% | 1006 mb (29.71 in) | WNW 13 kph (WNW 8.1 mph) | 0.00 mm (0.00 in) | 9SM |
| | KISN 100752Z 29007KT 9SM BKN028 BKN039 M19/M22 A2971 RMK AO2 SNE45 SLP116 P0000 T11891222 |
| 01:18 CST |  Mostly Cloudy Light Snow | -19°C / -2°F | -22°C / -8°F | 77% | 1006 mb (29.71 in) | NW 15 kph (NW 9.2 mph) | 0.00 mm (0.00 in) | 6SM |
| | KISN 100718Z 31008KT 6SM -SN BKN029 BKN040 M19/M22 A2971 RMK AO2 P0000 |
| 00:52 CST |  Mostly Cloudy Light Snow | -18°C / 0°F | -22°C / -8°F | 71% | 1006 mb (29.71 in) | NW 26 kph (NW 16.1 mph) | 0.00 mm (0.00 in) | 7SM |
| | KISN 100652Z 31014KT 7SM -SN FEW013 SCT027 BKN065 M18/M22 A2970 RMK AO2 SLP113 P0000 T11831217 |
| 00:26 CST |  Mostly Cloudy Light Snow | -18°C / 0°F | -21°C / -6°F | 78% | 1005 mb (29.68 in) | NW 15 kph (NW 9.2 mph) | 0.00 mm (0.00 in) | 9SM |
| | KISN 100626Z 30008KT 9SM -SN SCT023 SCT032 BKN047 M18/M21 A2969 RMK AO2 P0000 |