| 03:55 EST |  Clear | 3°C / 37°F | -2°C / 28°F | 70% | 1015 mb (29.97 in) | NW 20 kph (NW 12.7 mph) | - | 10SM |
| | KMSV 040855Z AUTO 30011G15KT 10SM CLR 03/M02 A2996 RMK AO1 52024 |
| 03:35 EST |  Clear | 4°C / 39°F | -2°C / 28°F | 65% | 1015 mb (29.97 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KMSV 040835Z AUTO 30009G16KT 10SM CLR 04/M02 A2996 RMK AO1 |
| 03:15 EST |  Partly Cloudy | 4°C / 39°F | 0°C / 32°F | 75% | 1014 mb (29.94 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KMSV 040815Z AUTO 30010G16KT 10SM FEW039 04/00 A2995 RMK AO1 |
| 02:55 EST |  Partly Cloudy | 4°C / 39°F | 1°C / 34°F | 81% | 1014 mb (29.94 in) | NW 15 kph (NW 9.2 mph) | - | 10SM |
| | KMSV 040755Z AUTO 30008KT 10SM SCT037 04/01 A2995 RMK AO1 |
| 02:35 EST |  Overcast | 4°C / 39°F | 1°C / 34°F | 81% | 1014 mb (29.94 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KMSV 040735Z AUTO 30010KT 10SM FEW025 OVC037 04/01 A2993 RMK AO1 |
| 02:15 EST |  Overcast | 4°C / 39°F | 2°C / 36°F | 87% | 1014 mb (29.94 in) | WNW 17 kph (WNW 10.4 mph) | - | 10SM |
| | KMSV 040715Z AUTO 29009KT 10SM FEW025 OVC035 04/02 A2993 RMK AO1 |
| 01:35 EST |  Overcast | 4°C / 39°F | 1°C / 34°F | 81% | 1013 mb (29.91 in) | WNW 13 kph (WNW 8.1 mph) | - | 10SM |
| | KMSV 040635Z AUTO 29007KT 10SM FEW025 OVC037 04/01 A2991 RMK AO1 |
| 01:15 EST |  Mostly Cloudy | 4°C / 39°F | 1°C / 34°F | 81% | 1013 mb (29.91 in) | W 11 kph (W 6.9 mph) | - | 10SM |
| | KMSV 040615Z AUTO 28006KT 10SM BKN039 04/01 A2990 RMK AO1 |
| 00:55 EST |  Mostly Cloudy | 4°C / 39°F | 1°C / 34°F | 81% | 1012 mb (29.88 in) | WNW 13 kph (WNW 8.1 mph) | - | 10SM |
| | KMSV 040555Z AUTO 29007KT 10SM BKN037 04/01 A2989 RMK AO1 10080 20040 52017 |
| 00:35 EST |  Mostly Cloudy | 4°C / 39°F | 1°C / 34°F | 81% | 1012 mb (29.88 in) | WNW 11 kph (WNW 6.9 mph) | - | 10SM |
| | KMSV 040535Z AUTO 29006KT 10SM BKN035 04/01 A2989 RMK AO1 |
| 00:15 EST |  Clear | 4°C / 39°F | 1°C / 34°F | 81% | 1012 mb (29.88 in) | WNW 15 kph (WNW 9.2 mph) | - | 10SM |
| | KMSV 040515Z AUTO 29008KT 10SM CLR 04/01 A2988 RMK AO1 |