| 10:40 EST |  Overcast | 7°C / 45°F | 1°C / 34°F | 66% | 1028 mb (30.36 in) | ENE 9 kph (ENE 5.8 mph) | - | 10SM |
| | KMRN 081540Z AUTO 07005KT 10SM OVC080 07/01 A3035 RMK AO2 |
| 10:20 EST |  Overcast | 7°C / 45°F | 2°C / 36°F | 71% | 1028 mb (30.36 in) | NNE 6 kph (NNE 3.5 mph) | - | 10SM |
| | KMRN 081520Z AUTO 02003KT 10SM OVC080 07/02 A3035 RMK AO2 |
| 10:01 EST |  Overcast | 7°C / 45°F | 1°C / 34°F | 66% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KMRN 081501Z AUTO 00000KT 10SM SCT040 BKN070 OVC080 07/01 A3035 RMK AO2 |
| 09:40 EST |  Overcast | 6°C / 43°F | 2°C / 36°F | 76% | 1027 mb (30.33 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KMRN 081440Z AUTO 08003KT 10SM SCT040 BKN060 OVC080 06/02 A3034 RMK AO2 |
| 09:20 EST |  Overcast | 6°C / 43°F | 2°C / 36°F | 76% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KMRN 081420Z AUTO 00000KT 10SM SCT040 OVC060 06/02 A3034 RMK AO2 |
| 09:00 EST |  Overcast | 6°C / 43°F | 2°C / 36°F | 76% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KMRN 081400Z AUTO 00000KT 10SM OVC060 06/02 A3033 RMK AO2 |
| 08:40 EST |  Overcast | 5°C / 41°F | 2°C / 36°F | 81% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KMRN 081340Z AUTO 00000KT 10SM BKN060 OVC070 05/02 A3034 RMK AO2 |
| 08:20 EST |  Overcast | 4°C / 39°F | 3°C / 37°F | 93% | 1027 mb (30.33 in) | Calm | - | 7SM |
| | KMRN 081320Z AUTO 00000KT 7SM OVC050 04/03 A3034 RMK AO2 |
| 08:00 EST |  Overcast Fog And Mist | 3°C / 37°F | 2°C / 36°F | 93% | 1027 mb (30.33 in) | Calm | - | 4SM |
| | KMRN 081300Z AUTO 00000KT 4SM BR SCT044 OVC050 03/02 A3034 RMK AO2 |
| 07:40 EST |  Overcast Fog And Mist | 2°C / 36°F | 2°C / 36°F | 100% | 1027 mb (30.33 in) | Calm | - | 4SM |
| | KMRN 081240Z AUTO 00000KT 4SM BR OVC044 02/02 A3034 RMK AO2 |
| 07:21 EST |  Mostly Cloudy Fog And Mist | 2°C / 36°F | 2°C / 36°F | 100% | 1027 mb (30.33 in) | Calm | - | 5SM |
| | KMRN 081221Z AUTO 00000KT 5SM BR BKN044 02/02 A3034 RMK AO2 |
| 07:00 EST |  Partly Cloudy Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 1027 mb (30.33 in) | W 9 kph (W 5.8 mph) | - | 5SM |
| | KMRN 081200Z AUTO 28005KT 5SM BR SCT042 02/01 A3032 RMK AO2 |
| 06:40 EST |  Clear Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 1026 mb (30.3 in) | Calm | - | 5SM |
| | KMRN 081140Z AUTO 00000KT 5SM BR CLR 02/01 A3030 RMK AO2 |
| 06:20 EST |  Mostly Cloudy | 3°C / 37°F | 2°C / 36°F | 93% | 1026 mb (30.3 in) | Calm | - | 7SM |
| | KMRN 081120Z AUTO 00000KT 7SM BKN050 03/02 A3030 RMK AO2 |
| 06:00 EST |  Overcast | 3°C / 37°F | 2°C / 36°F | 93% | 1026 mb (30.3 in) | E 6 kph (E 3.5 mph) | - | 7SM |
| | KMRN 081100Z AUTO 08003KT 7SM OVC050 03/02 A3029 RMK AO2 |
| 05:40 EST |  Overcast | 3°C / 37°F | 2°C / 36°F | 93% | 1026 mb (30.3 in) | NNW 6 kph (NNW 3.5 mph) | - | 7SM |
| | KMRN 081040Z AUTO 33003KT 7SM OVC060 03/02 A3031 RMK AO2 |
| 05:20 EST |  Overcast Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 1026 mb (30.3 in) | Calm | - | 5SM |
| | KMRN 081020Z AUTO 00000KT 5SM BR OVC060 02/01 A3030 RMK AO2 |
| 05:00 EST |  Mostly Cloudy | 2°C / 36°F | 1°C / 34°F | 93% | 1026 mb (30.3 in) | Calm | - | 7SM |
| | KMRN 081000Z AUTO 00000KT 7SM BKN060 02/01 A3031 RMK AO2 |
| 04:40 EST |  Clear Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 1026 mb (30.3 in) | Calm | - | 5SM |
| | KMRN 080940Z AUTO 00000KT 5SM BR CLR 01/01 A3029 RMK AO2 |
| 04:20 EST |  Mostly Cloudy | 2°C / 36°F | 1°C / 34°F | 93% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KMRN 080920Z AUTO 00000KT 10SM BKN090 02/01 A3028 RMK AO2 |
| 04:00 EST |  Overcast | 2°C / 36°F | 2°C / 36°F | 100% | 1026 mb (30.3 in) | Calm | - | 7SM |
| | KMRN 080900Z AUTO 00000KT 7SM SCT070 OVC100 02/02 A3029 RMK AO2 |
| 03:40 EST |  Overcast | 2°C / 36°F | 1°C / 34°F | 93% | 1026 mb (30.3 in) | Calm | - | 7SM |
| | KMRN 080840Z AUTO 00000KT 7SM SCT070 OVC100 02/01 A3029 RMK AO2 |
| 03:20 EST |  Overcast | 2°C / 36°F | 1°C / 34°F | 93% | 1026 mb (30.3 in) | Calm | - | 7SM |
| | KMRN 080820Z AUTO 00000KT 7SM SCT075 OVC100 02/01 A3029 RMK AO2 |
| 03:00 EST |  Overcast | 2°C / 36°F | 1°C / 34°F | 93% | 1026 mb (30.3 in) | Calm | - | 7SM |
| | KMRN 080800Z AUTO 00000KT 7SM BKN075 OVC100 02/01 A3029 RMK AO2 |
| 02:40 EST |  Overcast | 2°C / 36°F | 1°C / 34°F | 93% | 1026 mb (30.3 in) | Calm | - | 7SM |
| | KMRN 080740Z AUTO 00000KT 7SM BKN075 OVC095 02/01 A3029 RMK AO2 |
| 02:20 EST |  Overcast | 2°C / 36°F | 1°C / 34°F | 93% | 1025 mb (30.27 in) | Calm | - | 7SM |
| | KMRN 080720Z AUTO 00000KT 7SM SCT075 OVC095 02/01 A3027 RMK AO2 |
| 02:01 EST |  Overcast | 2°C / 36°F | 1°C / 34°F | 93% | 1025 mb (30.27 in) | Calm | - | 7SM |
| | KMRN 080701Z AUTO 00000KT 7SM BKN075 OVC095 02/01 A3027 RMK AO2 |
| 01:41 EST |  Overcast Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 1025 mb (30.27 in) | Calm | - | 4SM |
| | KMRN 080641Z AUTO 00000KT 4SM BR OVC075 01/01 A3027 RMK AO2 |
| 01:20 EST |  Overcast Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 1025 mb (30.27 in) | Calm | - | 5SM |
| | KMRN 080620Z AUTO 00000KT 5SM BR OVC075 01/01 A3028 RMK AO2 |
| 01:00 EST |  Overcast Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 1025 mb (30.27 in) | Calm | - | 5SM |
| | KMRN 080600Z AUTO 00000KT 5SM BR BKN085 OVC095 01/01 A3027 RMK AO2 |
| 00:40 EST |  Mostly Cloudy Fog And Mist | 1°C / 34°F | 0°C / 32°F | 93% | 1025 mb (30.27 in) | NW 6 kph (NW 3.5 mph) | - | 4SM |
| | KMRN 080540Z AUTO 32003KT 4SM BR BKN085 01/00 A3027 RMK AO2 |
| 00:20 EST |  Partly Cloudy Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 1025 mb (30.27 in) | Calm | - | 5SM |
| | KMRN 080520Z AUTO 00000KT 5SM BR SCT050 SCT095 01/01 A3027 RMK AO2 |
| 00:01 EST |  Partly Cloudy Fog And Mist | 0°C / 32°F | 0°C / 32°F | 100% | 1025 mb (30.27 in) | Calm | - | 3SM |
| | KMRN 080501Z AUTO 00000KT 3SM BR SCT050 00/00 A3027 RMK AO2 |