| 14:56 EST |  Clear | 4°C / 39°F | -2°C / 28°F | 65% | 1027 mb (30.33 in) | N 17 kph (N 10.4 mph) | - | 10SM |
| | KGON 241956Z 01009KT 10SM CLR 04/M02 A3034 RMK AO2 SLP273 T00441022 |
| 13:56 EST |  Clear | 4°C / 39°F | -3°C / 27°F | 61% | 1027 mb (30.33 in) | N 24 kph (N 15 mph) | - | 10SM |
| | KGON 241856Z 01013G17KT 10SM CLR 04/M03 A3032 RMK AO2 SLP266 T00441028 |
| 12:56 EST |  Clear | 4°C / 39°F | -3°C / 27°F | 61% | 1026 mb (30.3 in) | N 20 kph (N 12.7 mph) | - | 10SM |
| | KGON 241756Z 01011KT 10SM CLR 04/M03 A3031 RMK AO2 SLP262 T00391028 10039 21044 55010 |
| 11:56 EST |  Clear | 3°C / 37°F | -3°C / 27°F | 65% | 1026 mb (30.3 in) | N 26 kph (N 16.1 mph) | - | 10SM |
| | KGON 241656Z 36014G20KT 10SM CLR 03/M03 A3030 RMK AO2 SLP261 T00281033 |
| 10:56 EST |  Clear | 2°C / 36°F | -4°C / 25°F | 65% | 1027 mb (30.33 in) | N 28 kph (N 17.3 mph) | - | 10SM |
| | KGON 241556Z 01015G20KT 10SM CLR 02/M04 A3033 RMK AO2 SLP268 T00171044 |
| 10:08 EST |  Partly Cloudy | 1°C / 34°F | -6°C / 21°F | 60% | 1027 mb (30.33 in) | N 17 kph (N 10.4 mph) | - | 10SM |
| | KGON 241508Z 35009G17KT 10SM SCT021 01/M06 A3034 RMK AO2 |
| 09:56 EST |  Mostly Cloudy | 0°C / 32°F | -6°C / 21°F | 64% | 1027 mb (30.33 in) | N 20 kph (N 12.7 mph) | - | 10SM |
| | KGON 241456Z 36011KT 10SM BKN021 00/M06 A3034 RMK AO2 SLP272 T00001056 53035 |
| 09:46 EST |  Mostly Cloudy | 0°C / 32°F | -6°C / 21°F | 64% | 1027 mb (30.33 in) | N 20 kph (N 12.7 mph) | - | 10SM |
| | KGON 241446Z 35011KT 10SM BKN021 00/M06 A3034 RMK AO2 |
| 08:56 EST |  Clear | -2°C / 28°F | -7°C / 19°F | 69% | 1026 mb (30.3 in) | N 24 kph (N 15 mph) | - | 10SM |
| | KGON 241356Z 35013KT 10SM CLR M02/M07 A3030 RMK AO2 SLP260 T10171067 |
| 07:56 EST |  Clear | -3°C / 27°F | -8°C / 18°F | 69% | 1025 mb (30.27 in) | N 22 kph (N 13.8 mph) | - | 10SM |
| | KGON 241256Z 35012KT 10SM CLR M03/M08 A3026 RMK AO2 SLP248 T10331083 |
| 06:56 EST |  Clear | -4°C / 25°F | -9°C / 16°F | 69% | 1024 mb (30.24 in) | N 19 kph (N 11.5 mph) | - | 10SM |
| | KGON 241156Z 35010KT 10SM CLR M04/M09 A3023 RMK AO2 SLP237 T10441089 11044 21067 53012 |
| 05:56 EST |  Clear | -4°C / 25°F | -9°C / 16°F | 69% | 1023 mb (30.21 in) | NNW 20 kph (NNW 12.7 mph) | - | 10SM |
| | KGON 241056Z AUTO 34011KT 10SM CLR M04/M09 A3022 RMK AO2 SLP234 T10441094 |
| 04:56 EST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1023 mb (30.21 in) | NNW 22 kph (NNW 13.8 mph) | - | 10SM |
| | KGON 240956Z AUTO 34012KT 10SM CLR M04/M10 A3020 RMK AO2 SLP226 T10441100 |
| 03:56 EST |  Overcast | -5°C / 23°F | -11°C / 12°F | 63% | 1023 mb (30.21 in) | NNW 15 kph (NNW 9.2 mph) | - | 10SM |
| | KGON 240856Z AUTO 33008KT 10SM BKN031 OVC038 M05/M11 A3020 RMK AO2 SLP226 T10501106 53014 |
| 02:56 EST |  Overcast | -5°C / 23°F | -12°C / 10°F | 58% | 1022 mb (30.18 in) | NW 20 kph (NW 12.7 mph) | - | 10SM |
| | KGON 240756Z AUTO 32011G17KT 10SM OVC031 M05/M12 A3018 RMK AO2 SLP220 T10501117 |
| 01:56 EST |  Overcast | -6°C / 21°F | -12°C / 10°F | 63% | 1022 mb (30.18 in) | NNW 15 kph (NNW 9.2 mph) | - | 10SM |
| | KGON 240656Z AUTO 33008KT 10SM OVC031 M06/M12 A3017 RMK AO2 SLP216 T10611122 |
| 00:56 EST |  Overcast | -7°C / 19°F | -13°C / 9°F | 63% | 1021 mb (30.15 in) | NW 15 kph (NW 9.2 mph) | - | 10SM |
| | KGON 240556Z AUTO 32008KT 10SM OVC035 M07/M13 A3016 RMK AO2 SLP212 T10671128 11050 21078 53003 |