| 18:53 EST |  Clear | 12°C / 54°F | 7°C / 45°F | 72% | 1015 mb (29.97 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KGSP 252353Z 19004KT 10SM CLR 12/07 A2996 RMK AO2 SLP143 T01170072 10167 20111 50002 |
| 17:53 EST |  Clear | 12°C / 54°F | 7°C / 45°F | 72% | 1015 mb (29.97 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KGSP 252253Z 20004KT 10SM CLR 12/07 A2996 RMK AO2 SLP144 T01220072 |
| 16:53 EST |  Clear | 14°C / 57°F | 7°C / 45°F | 63% | 1014 mb (29.94 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KGSP 252153Z 21005KT 10SM CLR 14/07 A2995 RMK AO2 SLP140 T01440067 |
| 15:53 EST |  Clear | 16°C / 61°F | 7°C / 45°F | 55% | 1015 mb (29.97 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KGSP 252053Z 21005KT 10SM CLR 16/07 A2996 RMK AO2 SLP140 T01560067 56016 |
| 14:53 EST |  Clear | 16°C / 61°F | 8°C / 46°F | 59% | 1015 mb (29.97 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KGSP 251953Z 27004KT 10SM CLR 16/08 A2996 RMK AO2 SLP142 T01610078 |
| 13:53 EST |  Clear | 16°C / 61°F | 8°C / 46°F | 59% | 1015 mb (29.97 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KGSP 251853Z 25003KT 10SM CLR 16/08 A2997 RMK AO2 SLP146 T01560078 |
| 12:53 EST |  Partly Cloudy | 14°C / 57°F | 9°C / 48°F | 72% | 1016 mb (30 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KGSP 251753Z 23006KT 10SM FEW021 14/09 A3000 RMK AO2 SLP157 T01440089 10144 20094 58018 |
| 11:53 EST |  Partly Cloudy | 13°C / 55°F | 9°C / 48°F | 77% | 1017 mb (30.03 in) | SW 15 kph (SW 9.2 mph) | - | 10SM |
| | KGSP 251653Z 21008KT 10SM SCT013 13/09 A3004 RMK AO2 SLP168 T01330089 |
| 11:34 EST |  Partly Cloudy | 13°C / 55°F | 9°C / 48°F | 77% | 1018 mb (30.06 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KGSP 251634Z 23006KT 10SM SCT013 13/09 A3005 RMK AO2 |
| 10:53 EST |  Mostly Cloudy | 12°C / 54°F | 9°C / 48°F | 82% | 1018 mb (30.06 in) | SSW 11 kph (SSW 6.9 mph) | - | 9SM |
| | KGSP 251553Z 25006KT 9SM BKN013 12/09 A3006 RMK AO2 SLP177 T01170089 |
| 09:53 EST |  Mostly Cloudy | 11°C / 52°F | 9°C / 48°F | 88% | 1018 mb (30.06 in) | SW 13 kph (SW 8.1 mph) | - | 8SM |
| | KGSP 251453Z 23007KT 8SM BKN008 11/09 A3006 RMK AO2 CIG 008V013 SLP177 T01110089 53004 |
| 08:53 EST |  Overcast | 10°C / 50°F | 9°C / 48°F | 94% | 1018 mb (30.06 in) | SSW 9 kph (SSW 5.8 mph) | - | 7SM |
| | KGSP 251353Z 24005KT 7SM OVC006 10/09 A3005 RMK AO2 SLP173 T01000089 |
| 07:53 EST |  Overcast Fog And Mist | 9°C / 48°F | 8°C / 46°F | 94% | 1017 mb (30.03 in) | SSW 7 kph (SSW 4.6 mph) | - | 3SM |
| | KGSP 251253Z 24004KT 3SM BR OVC008 09/08 A3004 RMK AO2 SLP171 T00940083 |
| 06:53 EST |  Overcast Fog And Mist | 9°C / 48°F | 8°C / 46°F | 94% | 1018 mb (30.06 in) | SSW 11 kph (SSW 6.9 mph) | - | 5SM |
| | KGSP 251153Z 24006KT 5SM BR OVC008 09/08 A3005 RMK AO2 CIG 006V011 SLP173 T00940083 10094 20089 55002 |
| 06:04 EST |  Overcast | 9°C / 48°F | 8°C / 46°F | 94% | 1017 mb (30.03 in) | SSW 9 kph (SSW 5.8 mph) | - | 7SM |
| | KGSP 251104Z 26005KT 7SM OVC008 09/08 A3004 RMK AO2 CIG 006V011 |
| 05:53 EST |  Overcast | 9°C / 48°F | 8°C / 46°F | 94% | 1017 mb (30.03 in) | SSW 7 kph (SSW 4.6 mph) | - | 8SM |
| | KGSP 251053Z AUTO 25004KT 8SM OVC010 09/08 A3004 RMK AO2 CIG 006V012 SLP171 T00890083 |
| 04:53 EST |  Mostly Cloudy | 9°C / 48°F | 8°C / 46°F | 94% | 1018 mb (30.06 in) | SSE 7 kph (SSE 4.6 mph) | - | 9SM |
| | KGSP 250953Z AUTO 20004KT 9SM BKN010 BKN014 09/08 A3005 RMK AO2 CIG 006V013 SLP172 T00940083 |
| 04:24 EST |  Overcast | 9°C / 48°F | 9°C / 48°F | 100% | 1018 mb (30.06 in) | SW 7 kph (SW 4.6 mph) | - | 9SM |
| | KGSP 250924Z AUTO 21004KT 9SM FEW006 OVC014 09/09 A3005 RMK AO2 |
| 04:10 EST |  Overcast | 9°C / 48°F | 9°C / 48°F | 100% | 1018 mb (30.06 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KGSP 250910Z AUTO 20004KT 10SM BKN006 BKN012 OVC019 09/09 A3005 RMK AO2 CIG 004V009 |
| 03:53 EST |  Overcast | 9°C / 48°F | 9°C / 48°F | 100% | 1018 mb (30.06 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KGSP 250853Z AUTO 22003KT 10SM OVC004 09/09 A3005 RMK AO2 CIG 003V009 SLP174 T00940089 58006 |
| 02:53 EST |  Overcast | 9°C / 48°F | 9°C / 48°F | 100% | 1018 mb (30.06 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KGSP 250753Z AUTO 21005KT 10SM OVC004 09/09 A3006 RMK AO2 SLP178 T00940089 |
| 01:53 EST |  Overcast | 9°C / 48°F | 8°C / 46°F | 94% | 1018 mb (30.06 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KGSP 250653Z AUTO 22004KT 10SM OVC006 09/08 A3007 RMK AO2 SLP179 T00940083 |
| 00:53 EST |  Overcast | 9°C / 48°F | 8°C / 46°F | 94% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KGSP 250553Z AUTO 00000KT 10SM BKN006 OVC038 09/08 A3007 RMK AO2 SLP180 T00940083 10100 20094 58010 |
| 00:30 EST |  Overcast | 9°C / 48°F | 9°C / 48°F | 100% | 1019 mb (30.09 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KGSP 250530Z AUTO 22003KT 10SM FEW004 SCT009 OVC036 09/09 A3008 RMK AO2 |
| 00:26 EST |  Overcast | 9°C / 48°F | 9°C / 48°F | 100% | 1019 mb (30.09 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KGSP 250526Z AUTO 22003KT 10SM SCT004 BKN007 OVC034 09/09 A3008 RMK AO2 |