| 16:53 EST |  Overcast | 8°C / 46°F | 1°C / 34°F | 62% | 1018 mb (30.06 in) | NE 9 kph (NE 5.8 mph) | - | 10SM |
| | KGMU 042153Z 04005KT 10SM FEW040 OVC090 08/01 A3007 RMK AO2 SLP188 T00780011 |
| 15:53 EST |  Overcast | 8°C / 46°F | 1°C / 34°F | 62% | 1019 mb (30.09 in) | NE 11 kph (NE 6.9 mph) | - | 10SM |
| | KGMU 042053Z 04006KT 10SM BKN039 OVC095 08/01 A3008 RMK AO2 SLP190 T00830011 55011 |
| 14:53 EST |  Mostly Cloudy | 8°C / 46°F | 1°C / 34°F | 62% | 1018 mb (30.06 in) | ENE 13 kph (ENE 8.1 mph) | - | 10SM |
| | KGMU 041953Z 06007KT 10SM BKN100 08/01 A3005 RMK AO2 SLP179 T00830011 |
| 13:53 EST |  Mostly Cloudy | 9°C / 48°F | 1°C / 34°F | 58% | 1019 mb (30.09 in) | ENE 11 kph (ENE 6.9 mph) | - | 10SM |
| | KGMU 041853Z 07006KT 10SM FEW040 BKN100 09/01 A3008 RMK AO2 SLP188 T00890006 |
| 12:53 EST |  Overcast | 9°C / 48°F | 1°C / 34°F | 58% | 1020 mb (30.12 in) | NE 9 kph (NE 5.8 mph) | - | 10SM |
| | KGMU 041753Z 04005KT 10SM OVC040 09/01 A3011 RMK AO2 SLP200 T00890006 10089 20028 58018 |
| 11:53 EST |  Overcast | 9°C / 48°F | 1°C / 34°F | 58% | 1021 mb (30.15 in) | N 13 kph (N 8.1 mph) | - | 10SM |
| | KGMU 041653Z 01007KT 10SM OVC040 09/01 A3015 RMK AO2 SLP211 T00890011 |
| 10:53 EST |  Overcast | 8°C / 46°F | 1°C / 34°F | 62% | 1022 mb (30.18 in) | NE 9 kph (NE 5.8 mph) | - | 10SM |
| | KGMU 041553Z 04005KT 10SM OVC038 08/01 A3018 RMK AO2 SLP221 T00780006 |
| 09:53 EST |  Overcast | 7°C / 45°F | 1°C / 34°F | 66% | 1022 mb (30.18 in) | NNE 11 kph (NNE 6.9 mph) | - | 10SM |
| | KGMU 041453Z 02006KT 10SM OVC038 07/01 A3017 RMK AO2 SLP219 T00670011 51014 |
| 08:53 EST |  Overcast | 6°C / 43°F | 1°C / 34°F | 71% | 1021 mb (30.15 in) | NE 9 kph (NE 5.8 mph) | - | 10SM |
| | KGMU 041353Z 05005KT 10SM OVC038 06/01 A3016 RMK AO2 SLP216 T00560006 |
| 07:53 EST |  Overcast | 5°C / 41°F | 1°C / 34°F | 76% | 1021 mb (30.15 in) | ENE 6 kph (ENE 3.5 mph) | - | 10SM |
| | KGMU 041253Z 07003KT 10SM OVC038 05/01 A3014 RMK AO2 SLP211 T00500006 |
| 06:53 EST |  Overcast | 3°C / 37°F | 1°C / 34°F | 87% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KGMU 041153Z 00000KT 10SM OVC038 03/01 A3013 RMK AO2 SLP206 T00280006 10050 20028 53008 |
| 05:53 EST |  Clear | 3°C / 37°F | 0°C / 32°F | 81% | 1019 mb (30.09 in) | ENE 9 kph (ENE 5.8 mph) | - | 10SM |
| | KGMU 041053Z AUTO 06005KT 10SM CLR 03/00 A3010 RMK AO2 SLP195 T00280000 |
| 04:53 EST |  Clear | 3°C / 37°F | 1°C / 34°F | 87% | 1019 mb (30.09 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KGMU 040953Z AUTO 01003KT 10SM CLR 03/01 A3010 RMK AO2 SLP194 T00330006 |
| 03:53 EST |  Clear | 3°C / 37°F | 1°C / 34°F | 87% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KGMU 040853Z AUTO 00000KT 10SM CLR 03/01 A3010 RMK AO2 SLP196 T00330006 53012 |
| 02:53 EST |  Clear | 3°C / 37°F | 1°C / 34°F | 87% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KGMU 040753Z AUTO 00000KT 10SM CLR 03/01 A3009 RMK AO2 SLP191 T00330006 |
| 01:53 EST |  Clear | 4°C / 39°F | 1°C / 34°F | 81% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KGMU 040653Z AUTO 00000KT 10SM CLR 04/01 A3007 RMK AO2 SLP183 T00440006 |
| 00:53 EST |  Clear | 5°C / 41°F | 1°C / 34°F | 76% | 1018 mb (30.06 in) | ENE 6 kph (ENE 3.5 mph) | - | 10SM |
| | KGMU 040553Z AUTO 07003KT 10SM CLR 05/01 A3007 RMK AO2 SLP182 T00500006 10078 20044 51010 |