| 22:53 EST |  Partly Cloudy | 3°C / 37°F | 0°C / 32°F | 81% | 1009 mb (29.8 in) | Calm | - | 7SM |
| | KGRR 290353Z 00000KT 7SM FEW230 03/00 A2979 RMK AO2 SLP093 T00280000 |
| 21:53 EST |  Partly Cloudy | 3°C / 37°F | 0°C / 32°F | 81% | 1009 mb (29.8 in) | Calm | - | 8SM |
| | KGRR 290253Z 00000KT 8SM FEW230 03/00 A2979 RMK AO2 SLP094 T00330000 56005 |
| 20:53 EST |  Mostly Cloudy | 3°C / 37°F | 0°C / 32°F | 81% | 1009 mb (29.8 in) | S 7 kph (S 4.6 mph) | - | 8SM |
| | KGRR 290153Z 18004KT 8SM BKN230 03/00 A2979 RMK AO2 SLP095 T00330000 |
| 19:53 EST |  Partly Cloudy | 4°C / 39°F | 0°C / 32°F | 75% | 1009 mb (29.8 in) | S 13 kph (S 8.1 mph) | - | 10SM |
| | KGRR 290053Z 19007KT 10SM SCT230 04/00 A2980 RMK AO2 SLP098 T00390000 |
| 18:53 EST |  Partly Cloudy | 7°C / 45°F | 1°C / 34°F | 66% | 1009 mb (29.8 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KGRR 282353Z 19004KT 10SM FEW230 07/01 A2980 RMK AO2 SLP099 T00670006 10100 20061 53005 |
| 17:53 EST |  Partly Cloudy | 7°C / 45°F | 1°C / 34°F | 66% | 1009 mb (29.8 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KGRR 282253Z 20004KT 10SM FEW230 07/01 A2980 RMK AO2 SLP098 T00670006 |
| 16:53 EST |  Partly Cloudy | 7°C / 45°F | 1°C / 34°F | 66% | 1008 mb (29.77 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KGRR 282153Z 17004KT 10SM FEW230 07/01 A2978 RMK AO2 SLP093 T00720011 |
| 15:53 EST |  Partly Cloudy | 10°C / 50°F | 1°C / 34°F | 54% | 1009 mb (29.8 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KGRR 282053Z 16003KT 10SM FEW230 10/01 A2979 RMK AO2 SLP093 T01000011 56011 |
| 14:53 EST |  Partly Cloudy | 9°C / 48°F | 1°C / 34°F | 58% | 1009 mb (29.8 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KGRR 281953Z 18006KT 10SM SCT230 09/01 A2979 RMK AO2 SLP095 T00940011 |
| 13:53 EST |  Partly Cloudy | 9°C / 48°F | 1°C / 34°F | 58% | 1009 mb (29.8 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KGRR 281853Z 18005KT 10SM SCT250 09/01 A2981 RMK AO2 SLP099 T00890006 |
| 12:53 EST |  Mostly Cloudy | 8°C / 46°F | 1°C / 34°F | 62% | 1010 mb (29.83 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KGRR 281753Z 20008KT 10SM BKN230 08/01 A2982 RMK AO2 SLP104 T00830006 10083 21022 58022 |
| 11:53 EST |  Mostly Cloudy | 6°C / 43°F | -1°C / 30°F | 61% | 1011 mb (29.85 in) | S 15 kph (S 9.2 mph) | - | 10SM |
| | KGRR 281653Z 17008KT 10SM BKN230 06/M01 A2985 RMK AO2 SLP112 T00611006 |
| 10:53 EST |  Mostly Cloudy | 3°C / 37°F | -2°C / 28°F | 70% | 1012 mb (29.88 in) | SSE 17 kph (SSE 10.4 mph) | - | 8SM |
| | KGRR 281553Z 16009KT 8SM BKN230 03/M02 A2987 RMK AO2 SLP121 T00331017 |
| 09:53 EST |  Partly Cloudy | 1°C / 34°F | -2°C / 28°F | 81% | 1012 mb (29.88 in) | SSE 9 kph (SSE 5.8 mph) | - | 7SM |
| | KGRR 281453Z 16005KT 7SM SCT250 01/M02 A2989 RMK AO2 SLP129 T00111022 58002 |
| 08:53 EST |  Partly Cloudy | -1°C / 30°F | -3°C / 27°F | 86% | 1012 mb (29.88 in) | SSE 11 kph (SSE 6.9 mph) | - | 7SM |
| | KGRR 281353Z 16006KT 7SM FEW230 M01/M03 A2989 RMK AO2 SLP130 T10061033 |
| 07:53 EST |  Partly Cloudy | -2°C / 28°F | -4°C / 25°F | 86% | 1013 mb (29.91 in) | SSE 9 kph (SSE 5.8 mph) | - | 8SM |
| | KGRR 281253Z 16005KT 8SM FEW150 M02/M04 A2990 RMK AO2 SLP133 T10221044 |
| 06:53 EST |  Partly Cloudy | -2°C / 28°F | -4°C / 25°F | 86% | 1013 mb (29.91 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KGRR 281153Z 15006KT 10SM FEW200 M02/M04 A2990 RMK AO2 SLP131 T10221044 10011 21022 58017 |
| 05:53 EST |  Partly Cloudy | -2°C / 28°F | -4°C / 25°F | 86% | 1014 mb (29.94 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KGRR 281053Z 18005KT 10SM FEW025 M02/M04 A2993 RMK AO2 SLP142 T10171039 |
| 04:53 EST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1014 mb (29.94 in) | S 13 kph (S 8.1 mph) | - | 10SM |
| | KGRR 280953Z AUTO 17007KT 10SM CLR M02/M04 A2993 RMK AO2 SLP144 T10221044 |
| 03:53 EST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1014 mb (29.94 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KGRR 280853Z AUTO 16006KT 10SM CLR M02/M04 A2995 RMK AO2 SLP149 T10171044 58003 |
| 02:53 EST |  Clear | -1°C / 30°F | -4°C / 25°F | 80% | 1015 mb (29.97 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KGRR 280753Z AUTO 18004KT 10SM CLR M01/M04 A2996 RMK AO2 SLP153 T10111039 |
| 01:53 EST |  Clear | 0°C / 32°F | -3°C / 27°F | 80% | 1015 mb (29.97 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KGRR 280653Z AUTO 21006KT 10SM CLR 00/M03 A2996 RMK AO2 SLP152 T00001033 |
| 01:01 EST |  Partly Cloudy | 1°C / 34°F | -3°C / 27°F | 75% | 1015 mb (29.97 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KGRR 280601Z AUTO 21006KT 10SM SCT026 01/M03 A2996 RMK AO2 |
| 00:53 EST |  Mostly Cloudy | 1°C / 34°F | -3°C / 27°F | 75% | 1015 mb (29.97 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KGRR 280553Z AUTO 21005KT 10SM BKN026 01/M03 A2996 RMK AO2 SLP151 T00111028 10028 20011 56009 |