| 18:54 EST |  Overcast Drizzle | 9°C / 48°F | 9°C / 48°F | 100% | 1015 mb (29.97 in) | ESE 15 kph (ESE 9.2 mph) | 0.25 mm (0.01 in) | 1/2SM |
| | KBOS 252354Z 11008KT 1/2SM R04R/P6000FT -DZ BR OVC004 09/09 A2997 RMK AO2 SFC VIS 3/4 DZB50 SLP149 P0001 60001 T00940089 10094 20089 55013 |
| 17:54 EST |  Overcast Fog And Mist | 9°C / 48°F | 9°C / 48°F | 100% | 1015 mb (29.97 in) | ENE 15 kph (ENE 9.2 mph) | - | 1/2SM |
| | KBOS 252254Z 07008KT 1/2SM R04R/6000VP6000FT BR OVC004 09/09 A2997 RMK AO2 SFC VIS 1 1/4 SLP148 T00940089 |
| 16:54 EST |  Overcast Fog And Mist | 9°C / 48°F | 8°C / 46°F | 94% | 1015 mb (29.97 in) | NE 17 kph (NE 10.4 mph) | - | 1/2SM |
| | KBOS 252154Z 03009KT 1/2SM BR OVC004 09/08 A2998 RMK AO2 SFC VIS 2 SLP150 T00890083 |
| 15:54 EST |  Overcast Fog And Mist | 9°C / 48°F | 8°C / 46°F | 94% | 1016 mb (30 in) | NE 13 kph (NE 8.1 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBOS 252054Z 03007KT 1/2SM BR OVC004 09/08 A3001 RMK AO2 SFC VIS 2 1/2 DZE1956 SLP162 P0000 60000 T00890083 56006 |
| 15:35 EST |  Overcast Fog And Mist | 9°C / 48°F | 8°C / 46°F | 94% | 1016 mb (30 in) | NE 17 kph (NE 10.4 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBOS 252035Z 03009KT 1/2SM BR BKN004 OVC008 09/08 A3000 RMK AO2 SFC VIS 2 DZE1956 P0000 |
| 15:28 EST |  Overcast Fog And Mist | 9°C / 48°F | 8°C / 46°F | 94% | 1016 mb (30 in) | NE 13 kph (NE 8.1 mph) | 0.00 mm (0.00 in) | 1 3/4SM |
| | KBOS 252028Z 04007KT 1 3/4SM BR BKN004 OVC008 09/08 A3000 RMK AO2 TWR VIS 2 DZE1956 P0000 |
| 15:01 EST |  Overcast Fog And Mist | 9°C / 48°F | 8°C / 46°F | 94% | 1016 mb (30 in) | NE 15 kph (NE 9.2 mph) | 0.00 mm (0.00 in) | 2SM |
| | KBOS 252001Z 03008KT 2SM BR BKN004 OVC008 09/08 A3001 RMK AO2 SFC VIS 4 DZE1956 P0000 |
| 14:54 EST |  Overcast Drizzle | 9°C / 48°F | 8°C / 46°F | 94% | 1016 mb (30 in) | NE 11 kph (NE 6.9 mph) | 0.00 mm (0.00 in) | 1SM |
| | KBOS 251954Z 04006KT 1SM -DZ BR OVC004 09/08 A3001 RMK AO2 SFC VIS 2 1/2 SLP163 P0000 T00940083 |
| 14:41 EST |  Overcast Drizzle | 9°C / 48°F | 8°C / 46°F | 94% | 1016 mb (30 in) | NE 11 kph (NE 6.9 mph) | 0.00 mm (0.00 in) | 1SM |
| | KBOS 251941Z 03006KT 1SM -DZ BR OVC004 09/08 A3001 RMK AO2 SFC VIS 1 3/4 P0000 |
| 13:54 EST |  Overcast Drizzle | 9°C / 48°F | 8°C / 46°F | 94% | 1017 mb (30.03 in) | NE 9 kph (NE 5.8 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBOS 251854Z 05005KT 1/2SM R04R/5000VP6000FT -DZ BR BKN004 OVC010 09/08 A3002 RMK AO2 SFC VIS 1 CIG 003V007 SLP165 P0000 T00890083 |
| 13:17 EST |  Overcast Drizzle | 9°C / 48°F | 8°C / 46°F | 94% | 1017 mb (30.03 in) | NE 11 kph (NE 6.9 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBOS 251817Z 04006KT 1/2SM R04R/5000VP6000FT -DZ BR BKN004 OVC009 09/08 A3002 RMK AO2 SFC VIS 1 CIG 003V006 P0000 |
| 13:01 EST |  Overcast Drizzle | 9°C / 48°F | 8°C / 46°F | 94% | 1017 mb (30.03 in) | NE 13 kph (NE 8.1 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBOS 251801Z 04007KT 1/2SM R04R/5000VP6000FT -DZ BR OVC009 09/08 A3002 RMK AO2 SFC VIS 1 1/2 P0000 |
| 12:54 EST |  Overcast Drizzle | 9°C / 48°F | 8°C / 46°F | 94% | 1017 mb (30.03 in) | NE 11 kph (NE 6.9 mph) | 0.00 mm (0.00 in) | 1 1/2SM |
| | KBOS 251754Z 04006KT 1 1/2SM R04R/6000VP6000FT -DZ BR SCT006 OVC011 09/08 A3003 RMK AO2 SFC VIS 1 3/4 CIG 005 E SLP168 P0000 60002 T00940083 10094 20078 56026 |
| 12:48 EST |  Overcast Drizzle | 9°C / 48°F | 8°C / 46°F | 94% | 1017 mb (30.03 in) | NE 11 kph (NE 6.9 mph) | 0.00 mm (0.00 in) | 1 1/2SM |
| | KBOS 251748Z 04006KT 1 1/2SM R04R/5500VP6000FT -DZ BR SCT006 OVC012 09/08 A3003 RMK AO2 SFC VIS 1 3/4 CIG 005 E P0000 |
| 12:38 EST |  Overcast Drizzle | 9°C / 48°F | 8°C / 46°F | 94% | 1017 mb (30.03 in) | NE 11 kph (NE 6.9 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBOS 251738Z 04006KT 1/2SM R04R/4000VP6000FT -DZ BR FEW003 BKN006 OVC010 09/08 A3003 RMK AO2 SFC VIS 1 1/4 P0000 |
| 12:11 EST |  Overcast Drizzle | 9°C / 48°F | 8°C / 46°F | 94% | 1017 mb (30.03 in) | NE 13 kph (NE 8.1 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBOS 251711Z 03007KT 1/2SM R04R/4500V6000FT -DZ BR BKN003 OVC009 09/08 A3004 RMK AO2 SFC VIS 1 P0000 |
| 11:54 EST |  Overcast Drizzle | 9°C / 48°F | 8°C / 46°F | 94% | 1018 mb (30.06 in) | NE 9 kph (NE 5.8 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBOS 251654Z 04005KT 1/2SM R04R/4500VP6000FT -DZ BR SCT003 OVC009 09/08 A3005 RMK AO2 SFC VIS 1 CIG 004 E SLP175 P0000 T00890083 |
| 10:54 EST |  Overcast Drizzle | 9°C / 48°F | 8°C / 46°F | 94% | 1018 mb (30.06 in) | NE 15 kph (NE 9.2 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBOS 251554Z 04008KT 1/2SM R04R/4000VP6000FT -DZ BR BKN005 OVC008 09/08 A3007 RMK AO2 SFC VIS 1 CIG 003V006 SLP181 P0000 T00890078 |
| 09:54 EST |  Overcast Drizzle | 9°C / 48°F | 8°C / 46°F | 94% | 1020 mb (30.12 in) | NNE 11 kph (NNE 6.9 mph) | 0.25 mm (0.01 in) | 1/2SM |
| | KBOS 251454Z 02006KT 1/2SM R04R/4500V6000FT -DZ BR OVC005 09/08 A3011 RMK AO2 SFC VIS 3/4 CIG 002V008 SLP194 P0001 60002 T00890078 58002 |
| 08:54 EST |  Overcast Drizzle | 8°C / 46°F | 8°C / 46°F | 100% | 1020 mb (30.12 in) | NNE 7 kph (NNE 4.6 mph) | 0.25 mm (0.01 in) | 1/2SM |
| | KBOS 251354Z 02004KT 1/2SM R04R/4500VP6000FT -DZ BR OVC005 08/08 A3012 RMK AO2 SFC VIS 1 DZB1256 CIG 002V008 SLP197 P0001 T00830078 |
| 07:54 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1020 mb (30.12 in) | NNE 11 kph (NNE 6.9 mph) | 0.00 mm (0.00 in) | 1/2SM |
| | KBOS 251254Z 02006KT 1/2SM R04R/5500VP6000FT BR OVC005 08/07 A3012 RMK AO2 SFC VIS 1 DZB33E48 CIG 003V008 SLP197 P0000 T00780072 |
| 07:38 EST |  Overcast Drizzle | 8°C / 46°F | 7°C / 45°F | 93% | 1020 mb (30.12 in) | NNE 9 kph (NNE 5.8 mph) | 0.00 mm (0.00 in) | 1 1/4SM |
| | KBOS 251238Z 02005KT 1 1/4SM R04R/6000VP6000FT -DZ BR OVC005 08/07 A3011 RMK AO2 TWR VIS 1 1/2 DZB33 P0000 |
| 07:28 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1020 mb (30.12 in) | NNE 9 kph (NNE 5.8 mph) | - | 2SM |
| | KBOS 251228Z 02005KT 2SM BR OVC005 08/07 A3011 RMK AO2 |
| 06:54 EST |  Overcast | 8°C / 46°F | 7°C / 45°F | 93% | 1020 mb (30.12 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KBOS 251154Z 36006KT 10SM OVC005 08/07 A3011 RMK AO2 SLP197 T00780067 10083 20078 53002 $ |
| 06:40 EST |  Overcast | 8°C / 46°F | 7°C / 45°F | 93% | 1020 mb (30.12 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KBOS 251140Z 36006KT 10SM OVC005 08/07 A3011 RMK AO2 $ |
| 05:54 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1019 mb (30.09 in) | NNE 19 kph (NNE 11.5 mph) | - | 2SM |
| | KBOS 251054Z 02010KT 2SM BR BKN005 OVC009 08/07 A3009 RMK AO2 SFC VIS 5 SLP188 T00780067 $ |
| 05:38 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1019 mb (30.09 in) | N 15 kph (N 9.2 mph) | - | 2SM |
| | KBOS 251038Z 01008KT 2SM BR BKN005 OVC009 08/07 A3010 RMK AO2 SFC VIS 5 $ |
| 05:24 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1020 mb (30.12 in) | N 15 kph (N 9.2 mph) | - | 2SM |
| | KBOS 251024Z 01008KT 2SM BR BKN003 OVC009 08/07 A3011 RMK AO2 SFC VIS 5 $ |
| 04:54 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1020 mb (30.12 in) | N 15 kph (N 9.2 mph) | - | 1 1/2SM |
| | KBOS 250954Z 36008KT 1 1/2SM BR BKN003 OVC009 08/07 A3011 RMK AO2 SFC VIS 3 SLP194 T00780067 $ |
| 04:15 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1020 mb (30.12 in) | N 13 kph (N 8.1 mph) | - | 1 1/2SM |
| | KBOS 250915Z 36007KT 1 1/2SM BR BKN003 OVC009 08/07 A3011 RMK AO2 SFC VIS 2 1/2 |
| 03:54 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1020 mb (30.12 in) | N 15 kph (N 9.2 mph) | - | 2 1/2SM |
| | KBOS 250854Z 36008KT 2 1/2SM BR BKN003 OVC009 08/07 A3011 RMK AO2 SLP194 T00780067 58004 |
| 03:08 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1020 mb (30.12 in) | N 11 kph (N 6.9 mph) | - | 2 1/2SM |
| | KBOS 250808Z 35006KT 2 1/2SM BR OVC004 08/07 A3011 RMK AO2 CIG 004V009 |
| 02:54 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1020 mb (30.12 in) | N 11 kph (N 6.9 mph) | - | 3SM |
| | KBOS 250754Z 35006KT 3SM BR BKN004 OVC009 08/07 A3012 RMK AO2 SLP199 T00830072 |
| 01:54 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1020 mb (30.12 in) | N 11 kph (N 6.9 mph) | - | 3SM |
| | KBOS 250654Z 35006KT 3SM BR BKN004 OVC008 08/07 A3013 RMK AO2 SLP202 T00830072 |
| 01:32 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1020 mb (30.12 in) | N 13 kph (N 8.1 mph) | - | 3SM |
| | KBOS 250632Z 35007KT 3SM BR BKN004 OVC007 08/07 A3013 RMK AO2 |
| 00:54 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1020 mb (30.12 in) | N 9 kph (N 5.8 mph) | - | 3SM |
| | KBOS 250554Z 36005KT 3SM BR BKN005 OVC011 08/07 A3012 RMK AO2 SLP199 T00830072 10094 20083 56006 |