| 08:19 EST |  Overcast Light Rain | 18°C / 64°F | 14°C / 57°F | 78% | 992 mb (29.29 in) | SW 46 kph (SW 28.8 mph) | 1.27 mm (0.05 in) | 10SM |
| | KBOS 031319Z 23025G42KT 10SM -RA FEW015 BKN050 OVC065 18/14 A2929 RMK AO2 PK WND 21043/1304 CIG 040 E P0005 |
| 08:12 EST |  Overcast Light Rain | 19°C / 66°F | 16°C / 61°F | 83% | 992 mb (29.29 in) | SW 56 kph (SW 34.5 mph) | 1.27 mm (0.05 in) | 9SM |
| | KBOS 031312Z 22030G43KT 9SM -RA FEW017 BKN028 OVC055 19/16 A2930 RMK AO2 PK WND 21043/1304 VIS 1 1/4 E P0005 |
| 08:07 EST |  Overcast Light Rain | 18°C / 64°F | 16°C / 61°F | 88% | 992 mb (29.29 in) | SW 54 kph (SW 33.4 mph) | 0.51 mm (0.02 in) | 2 1/2SM |
| | KBOS 031307Z 22029G43KT 2 1/2SM R04R/4500VP6000FT -RA SCT019 BKN030 OVC050 18/16 A2930 RMK AO2 PK WND 21043/1304 VIS 3/4 E CIG 022 E P0002 |
| 07:59 EST |  Overcast Rain | 18°C / 64°F | 16°C / 61°F | 88% | 993 mb (29.32 in) | SW 48 kph (SW 29.9 mph) | 0.51 mm (0.02 in) | 1 3/4SM |
| | KBOS 031259Z 22026G38KT 1 3/4SM R04R/4500VP6000FT RA BR SCT018 BKN024 OVC030 18/16 A2931 RMK AO2 PK WND 21038/1258 PRESRR P0002 |
| 07:54 EST |  Overcast Light Rain | 18°C / 64°F | 16°C / 61°F | 88% | 992 mb (29.29 in) | SW 43 kph (SW 26.5 mph) | 2.03 mm (0.08 in) | 3SM |
| | KBOS 031254Z 21023G40KT 3SM -RA BR SCT020 OVC028 18/16 A2930 RMK AO2 PK WND 20042/1242 RAE20B38 CIG 023 E SLP920 P0008 T01830161 |
| 07:11 EST |  Overcast Light Rain | 17°C / 63°F | 15°C / 59°F | 88% | 993 mb (29.32 in) | S 54 kph (S 33.4 mph) | 1.52 mm (0.06 in) | 4SM |
| | KBOS 031211Z 19029G37KT 4SM -RA BR FEW014 BKN021 OVC027 17/15 A2931 RMK AO2 PK WND 18037/1211 P0006 $ |
| 06:54 EST |  Overcast Rain | 16°C / 61°F | 14°C / 57°F | 88% | 993 mb (29.32 in) | S 37 kph (S 23 mph) | 6.60 mm (0.26 in) | 2SM |
| | KBOS 031154Z 17020G29KT 2SM RA BR SCT018 BKN025 OVC031 16/14 A2932 RMK AO2 PK WND 17029/1152 CIG 020 E PRESFR SLP928 P0026 60057 70067 T01560144 10156 20100 58096 $ |
| 06:45 EST |  Overcast Heavy Rain | 15°C / 59°F | 14°C / 57°F | 94% | 994 mb (29.35 in) | S 32 kph (S 19.6 mph) | 5.84 mm (0.23 in) | 2SM |
| | KBOS 031145Z 17017KT 2SM +RA BR SCT017 BKN025 OVC033 15/14 A2935 RMK AO2 CIG 019 E PRESFR P0023 $ |
| 05:54 EST |  Overcast Rain | 13°C / 55°F | 12°C / 54°F | 94% | 997 mb (29.44 in) | SSE 22 kph (SSE 13.8 mph) | 4.06 mm (0.16 in) | 3SM |
| | KBOS 031054Z 15012KT 3SM RA BR BKN014 OVC025 13/12 A2944 RMK AO2 SLP970 P0016 T01330122 $ |
| 05:23 EST |  Overcast Rain | 14°C / 57°F | 13°C / 55°F | 94% | 999 mb (29.5 in) | SSE 35 kph (SSE 21.9 mph) | 1.27 mm (0.05 in) | 4SM |
| | KBOS 031023Z 16019G24KT 4SM RA BR BKN016 OVC020 14/13 A2949 RMK AO2 P0005 $ |
| 04:54 EST |  Overcast Rain | 13°C / 55°F | 12°C / 54°F | 94% | 1000 mb (29.53 in) | SSE 32 kph (SSE 19.6 mph) | 1.52 mm (0.06 in) | 4SM |
| | KBOS 030954Z 15017KT 4SM RA BR OVC014 13/12 A2954 RMK AO2 PRESFR SLP001 P0006 T01330117 |
| 03:54 EST |  Overcast Light Rain | 12°C / 54°F | 11°C / 52°F | 94% | 1002 mb (29.59 in) | SE 37 kph (SE 23 mph) | 0.76 mm (0.03 in) | 6SM |
| | KBOS 030854Z 13020KT 6SM -RA BR OVC012 12/11 A2960 RMK AO2 SLP024 P0003 60009 T01170106 58091 |
| 02:54 EST |  Overcast Light Rain | 11°C / 52°F | 10°C / 50°F | 94% | 1007 mb (29.74 in) | SE 30 kph (SE 18.4 mph) | 1.02 mm (0.04 in) | 6SM |
| | KBOS 030754Z 14016KT 6SM -RA BR OVC010 11/10 A2973 RMK AO2 PRESFR SLP066 P0004 T01110100 |
| 02:16 EST |  Overcast Light Rain | 10°C / 50°F | 9°C / 48°F | 94% | 1008 mb (29.77 in) | ESE 24 kph (ESE 15 mph) | 0.51 mm (0.02 in) | 5SM |
| | KBOS 030716Z 11013KT 5SM -RA BR BKN012 BKN050 OVC060 10/09 A2977 RMK AO2 PRESFR P0002 |
| 01:54 EST |  Overcast Light Rain | 10°C / 50°F | 9°C / 48°F | 94% | 1009 mb (29.8 in) | ESE 26 kph (ESE 16.1 mph) | 0.51 mm (0.02 in) | 7SM |
| | KBOS 030654Z 11014KT 7SM -RA SCT030 OVC065 10/09 A2980 RMK AO2 SLP092 P0002 T01000089 |
| 00:54 EST |  Overcast Light Rain | 11°C / 52°F | 9°C / 48°F | 88% | 1012 mb (29.88 in) | SE 22 kph (SE 13.8 mph) | 0.76 mm (0.03 in) | 10SM |
| | KBOS 030554Z 13012KT 10SM -RA OVC065 11/09 A2987 RMK AO2 SLP115 P0003 60010 T01060089 10106 20089 58045 |