| 06:53 EST |  Overcast Rain | 2°C / 36°F | 1°C / 34°F | 93% | 1001 mb (29.56 in) | NW 7 kph (NW 4.6 mph) | 3.56 mm (0.14 in) | 4SM |
| | KSEG 091153Z AUTO 31004KT 4SM RA BR OVC020 02/01 A2955 RMK AO2 SLP009 P0014 60050 70071 T00220006 10033 20011 56082 |
| 05:53 EST |  Overcast Rain | 2°C / 36°F | 0°C / 32°F | 87% | 1002 mb (29.59 in) | NNE 13 kph (NNE 8.1 mph) | 2.29 mm (0.09 in) | 5SM |
| | KSEG 091053Z AUTO 02007KT 5SM RA BR OVC018 02/00 A2960 RMK AO2 PRESFR SLP026 P0009 T00220000 |
| 04:53 EST |  Overcast Rain | 2°C / 36°F | 0°C / 32°F | 87% | 1006 mb (29.71 in) | ENE 6 kph (ENE 3.5 mph) | 1.78 mm (0.07 in) | 5SM |
| | KSEG 090953Z AUTO 07003KT 5SM RA BR BKN020 OVC027 02/00 A2971 RMK AO2 RAE0859B15SNB0859E15 PRESFR SLP065 P0007 T00170000 |
| 04:20 EST |  Overcast Rain | 2°C / 36°F | -1°C / 30°F | 81% | 1008 mb (29.77 in) | Calm | 1.02 mm (0.04 in) | 3SM |
| | KSEG 090920Z AUTO 00000KT 3SM RA BR OVC019 02/M01 A2977 RMK AO2 RAE0859B15SNB0859E15 P0004 |
| 04:11 EST |  Overcast Light Snow | 2°C / 36°F | 0°C / 32°F | 87% | 1008 mb (29.77 in) | Calm | 0.76 mm (0.03 in) | 2 1/2SM |
| | KSEG 090911Z AUTO 00000KT 2 1/2SM -SN BR OVC017 02/00 A2977 RMK AO2 RAE0859SNB0859 P0003 |
| 03:53 EST |  Overcast Rain | 1°C / 34°F | -1°C / 30°F | 87% | 1009 mb (29.8 in) | NE 6 kph (NE 3.5 mph) | 1.78 mm (0.07 in) | 3SM |
| | KSEG 090853Z AUTO 05003KT 3SM RA BR FEW009 OVC018 01/M01 A2979 RMK AO2 RAB43SNE43 PRESFR SLP092 P0007 60020 T00111006 58075 |
| 03:43 EST |  Overcast Rain | 1°C / 34°F | -1°C / 30°F | 87% | 1010 mb (29.83 in) | Calm | 1.78 mm (0.07 in) | 2SM |
| | KSEG 090843Z AUTO 00000KT 2SM RA BR SCT009 BKN016 OVC021 01/M01 A2982 RMK AO2 RAB43SNE43 P0007 |
| 03:36 EST |  Overcast Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1010 mb (29.83 in) | Calm | 1.52 mm (0.06 in) | 1 1/4SM |
| | KSEG 090836Z AUTO 00000KT 1 1/4SM -SN BR SCT007 BKN012 OVC022 01/M01 A2983 RMK AO2 P0006 |
| 03:27 EST |  Overcast Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1010 mb (29.83 in) | Variable 7 kph (Variable 4.6 mph) | 1.02 mm (0.04 in) | 1SM |
| | KSEG 090827Z AUTO VRB04KT 1SM -SN BR BKN007 BKN013 OVC019 01/M01 A2983 RMK AO2 CIG 004V011 PRESFR P0004 |
| 03:10 EST |  Overcast Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1011 mb (29.85 in) | ENE 6 kph (ENE 3.5 mph) | 0.51 mm (0.02 in) | 3/4SM |
| | KSEG 090810Z AUTO 07003KT 3/4SM -SN BR BKN009 OVC015 01/M01 A2986 RMK AO2 PRESFR P0002 |
| 02:53 EST |  Overcast Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1012 mb (29.88 in) | ENE 7 kph (ENE 4.6 mph) | 1.52 mm (0.06 in) | 1SM |
| | KSEG 090753Z AUTO 07004KT 1SM -SN BR BKN007 BKN013 OVC020 01/M01 A2988 RMK AO2 PRESFR SLP120 P0006 T00111006 |
| 02:40 EST |  Overcast Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1013 mb (29.91 in) | E 6 kph (E 3.5 mph) | 1.02 mm (0.04 in) | 1SM |
| | KSEG 090740Z AUTO 10003KT 1SM -SN BR BKN008 OVC016 01/M01 A2990 RMK AO2 PRESFR P0004 |
| 02:35 EST |  Overcast Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1013 mb (29.91 in) | E 7 kph (E 4.6 mph) | 1.02 mm (0.04 in) | 3/4SM |
| | KSEG 090735Z AUTO 09004KT 3/4SM -SN BR SCT008 BKN016 OVC021 01/M01 A2991 RMK AO2 PRESFR P0004 |
| 02:18 EST |  Overcast Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1014 mb (29.94 in) | E 6 kph (E 3.5 mph) | 0.51 mm (0.02 in) | 1SM |
| | KSEG 090718Z AUTO 10003KT 1SM -SN BR SCT010 BKN018 OVC023 01/M01 A2994 RMK AO2 P0002 |
| 02:08 EST |  Overcast Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1014 mb (29.94 in) | SE 7 kph (SE 4.6 mph) | 0.25 mm (0.01 in) | 1 1/4SM |
| | KSEG 090708Z AUTO 12004KT 1 1/4SM -SN BR FEW009 SCT013 OVC023 01/M01 A2995 RMK AO2 PRESFR P0001 |
| 01:57 EST |  Overcast Light Snow | 2°C / 36°F | -1°C / 30°F | 81% | 1015 mb (29.97 in) | Variable 7 kph (Variable 4.6 mph) | 0.00 mm (0.00 in) | 1 1/4SM |
| | KSEG 090657Z AUTO VRB04KT 1 1/4SM -SN BR FEW009 BKN014 OVC025 02/M01 A2997 RMK AO2 P0000 |
| 01:53 EST |  Overcast Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1015 mb (29.97 in) | SE 11 kph (SE 6.9 mph) | 1.78 mm (0.07 in) | 1SM |
| | KSEG 090653Z AUTO 13006KT 1SM -SN BR SCT009 BKN016 OVC022 01/M01 A2998 RMK AO2 SLP154 P0007 T00111006 |
| 01:45 EST |  Overcast Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1015 mb (29.97 in) | SE 11 kph (SE 6.9 mph) | 1.52 mm (0.06 in) | 1SM |
| | KSEG 090645Z AUTO 14006KT 1SM -SN BR BKN009 OVC017 01/M01 A2997 RMK AO2 P0006 |
| 00:53 EST |  Overcast Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1017 mb (30.03 in) | SE 7 kph (SE 4.6 mph) | 1.78 mm (0.07 in) | 1/2SM |
| | KSEG 090553Z AUTO 13004KT 1/2SM SN FG FEW004 BKN010 OVC018 01/M01 A3002 RMK AO2 SLP169 P0007 60021 T00111006 10044 20011 56040 |
| 00:49 EST |  Overcast Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1017 mb (30.03 in) | SE 7 kph (SE 4.6 mph) | 1.52 mm (0.06 in) | 3/4SM |
| | KSEG 090549Z AUTO 13004KT 3/4SM -SN BR SCT008 OVC015 01/M01 A3003 RMK AO2 P0006 |
| 00:08 EST |  Overcast Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1018 mb (30.06 in) | SE 11 kph (SE 6.9 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KSEG 090508Z AUTO 13006G15KT 3/4SM -SN BR SCT005 SCT008 OVC014 01/M01 A3006 RMK AO2 P0001 |