| 21:53 EST |  Overcast Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1016 mb (30 in) | E 28 kph (E 17.3 mph) | - | 6SM |
| | KGRR 250253Z 09015KT 6SM BR BKN009 OVC100 M01/M03 A3001 RMK AO2 PK WND 07028/0202 SLP171 6/000 T10111033 55005 PNO $ |
| 20:53 EST |  Overcast | -1°C / 30°F | -4°C / 25°F | 80% | 1016 mb (30 in) | E 35 kph (E 21.9 mph) | - | 7SM |
| | KGRR 250153Z 08019G28KT 7SM BKN009 OVC100 M01/M04 A3000 RMK AO2 PK WND 08028/0147 CIG 008V012 SLP169 T10111039 PNO $ |
| 20:16 EST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1017 mb (30.03 in) | E 35 kph (E 21.9 mph) | - | 7SM |
| | KGRR 250116Z 08019G24KT 7SM BKN009 OVC095 M01/M03 A3002 RMK AO2 PNO $ |
| 19:53 EST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1017 mb (30.03 in) | E 30 kph (E 18.4 mph) | 0.00 mm (0.00 in) | 7SM |
| | KGRR 250053Z 08016KT 7SM FEW009 BKN080 OVC100 M01/M03 A3003 RMK AO2 PK WND 07030/2359 FZRAE49 CIG 009 RWY 8R SLP178 P0000 T10111033 PNO $ |
| 19:48 EST |  Overcast Light Freezing Rain | -1°C / 30°F | -3°C / 27°F | 86% | 1017 mb (30.03 in) | E 28 kph (E 17.3 mph) | 0.00 mm (0.00 in) | 7SM |
| | KGRR 250048Z 08015G24KT 7SM -FZRA SCT009 BKN070 OVC090 M01/M03 A3002 RMK AO2 PK WND 07030/2359 P0000 PNO $ |
| 18:53 EST |  Overcast Light Freezing Rain | -1°C / 30°F | -3°C / 27°F | 86% | 1017 mb (30.03 in) | E 37 kph (E 23 mph) | 1.27 mm (0.05 in) | 4SM |
| | KGRR 242353Z 08020KT 4SM -FZRA BKN009 OVC036 M01/M03 A3004 RMK AO2 PRESFR SLP183 4/004 P0005 60008 T10061033 11006 21017 58018 |
| 17:53 EST |  Overcast Light Freezing Rain | -1°C / 30°F | -3°C / 27°F | 86% | 1018 mb (30.06 in) | E 33 kph (E 20.7 mph) | 0.25 mm (0.01 in) | 4SM |
| | KGRR 242253Z 09018KT 4SM -FZRA BR OVC009 M01/M03 A3007 RMK AO2 SLP194 FZRAB04 P0001 T10061028 |
| 17:10 EST |  Overcast Light Freezing Rain | -1°C / 30°F | -3°C / 27°F | 86% | 1019 mb (30.09 in) | E 33 kph (E 20.7 mph) | 0.00 mm (0.00 in) | 7SM |
| | KGRR 242210Z 09018G24KT 7SM -FZRA OVC011 M01/M03 A3008 RMK AO2 FZRAB04 P0000 |
| 16:53 EST |  Overcast Hazy | -1°C / 30°F | -3°C / 27°F | 86% | 1019 mb (30.09 in) | E 28 kph (E 17.3 mph) | - | 6SM |
| | KGRR 242153Z 08015KT 6SM HZ OVC011 M01/M03 A3008 RMK AO2 SLP196 T10061033 |
| 16:29 EST |  Overcast Hazy | -1°C / 30°F | -3°C / 27°F | 86% | 1019 mb (30.09 in) | E 32 kph (E 19.6 mph) | - | 6SM |
| | KGRR 242129Z 09017KT 6SM HZ BKN011 OVC075 M01/M03 A3009 RMK AO2 |
| 15:53 EST |  Overcast Hazy | -1°C / 30°F | -3°C / 27°F | 86% | 1019 mb (30.09 in) | E 28 kph (E 17.3 mph) | 0.00 mm (0.00 in) | 6SM |
| | KGRR 242053Z 09015G23KT 6SM HZ OVC009 M01/M03 A3009 RMK AO2 FZRAE21 SLP201 P0000 60002 T10061033 56028 |
| 15:27 EST |  Overcast Hazy | -1°C / 30°F | -4°C / 25°F | 80% | 1019 mb (30.09 in) | E 33 kph (E 20.7 mph) | 0.00 mm (0.00 in) | 5SM |
| | KGRR 242027Z 08018G23KT 5SM HZ BKN009 BKN048 OVC060 M01/M04 A3010 RMK AO2 FZRAE21 P0000 |
| 14:53 EST |  Overcast Light Freezing Rain | -1°C / 30°F | -3°C / 27°F | 86% | 1020 mb (30.12 in) | ENE 28 kph (ENE 17.3 mph) | 0.25 mm (0.01 in) | 4SM |
| | KGRR 241953Z 07015KT 4SM -FZRA BR BKN009 OVC026 M01/M03 A3011 RMK AO2 PRESFR SLP208 P0001 T10111033 |
| 14:38 EST |  Overcast Light Freezing Rain | -1°C / 30°F | -4°C / 25°F | 80% | 1020 mb (30.12 in) | E 30 kph (E 18.4 mph) | 0.25 mm (0.01 in) | 4SM |
| | KGRR 241938Z 08016KT 4SM -FZRA BR BKN009 BKN028 OVC060 M01/M04 A3013 RMK AO2 P0001 |
| 14:26 EST |  Overcast Light Freezing Rain | -1°C / 30°F | -4°C / 25°F | 80% | 1021 mb (30.15 in) | E 28 kph (E 17.3 mph) | 0.00 mm (0.00 in) | 4SM |
| | KGRR 241926Z 09015KT 4SM -FZRA BR SCT009 BKN030 OVC055 M01/M04 A3014 RMK AO2 CIG 009 RWY 8R P0000 |
| 13:53 EST |  Overcast Light Freezing Rain | -1°C / 30°F | -4°C / 25°F | 80% | 1021 mb (30.15 in) | E 26 kph (E 16.1 mph) | 0.25 mm (0.01 in) | 4SM |
| | KGRR 241853Z 09014KT 4SM -FZRA BR SCT011 BKN034 OVC050 M01/M04 A3016 RMK AO2 SLP223 FZRAPLB14PLE26 P0001 T10111039 |
| 13:33 EST |  Overcast Light Freezing Rain | -2°C / 28°F | -4°C / 25°F | 86% | 1021 mb (30.15 in) | E 28 kph (E 17.3 mph) | 0.00 mm (0.00 in) | 5SM |
| | KGRR 241833Z 08015KT 5SM -FZRA SCT011 SCT036 OVC055 M02/M04 A3016 RMK AO2 FZRAPLB14PLE26 P0000 |
| 13:18 EST |  Overcast | -2°C / 28°F | -5°C / 23°F | 80% | 1021 mb (30.15 in) | E 28 kph (E 17.3 mph) | 0.00 mm (0.00 in) | 6SM |
| | KGRR 241818Z 09015KT 6SM FZRAPL BKN011 BKN055 OVC150 M02/M05 A3016 RMK AO2 PLB14 P0000 |
| 12:53 EST |  Overcast | -2°C / 28°F | -5°C / 23°F | 80% | 1022 mb (30.18 in) | E 30 kph (E 18.4 mph) | - | 7SM |
| | KGRR 241753Z 09016KT 7SM SCT011 OVC150 M02/M05 A3018 RMK AO2 SLP231 4/004 T10171050 11017 21028 58021 |
| 11:53 EST |  Overcast | -2°C / 28°F | -6°C / 21°F | 74% | 1022 mb (30.18 in) | E 35 kph (E 21.9 mph) | - | 7SM |
| | KGRR 241653Z 09019G25KT 7SM FEW013 SCT100 OVC150 M02/M06 A3019 RMK AO2 SLP234 T10221056 |
| 11:28 EST |  Overcast | -2°C / 28°F | -6°C / 21°F | 74% | 1023 mb (30.21 in) | E 35 kph (E 21.9 mph) | - | 8SM |
| | KGRR 241628Z 09019KT 8SM SCT013 BKN100 OVC150 M02/M06 A3021 RMK AO2 |
| 10:53 EST |  Overcast | -2°C / 28°F | -6°C / 21°F | 74% | 1024 mb (30.24 in) | E 33 kph (E 20.7 mph) | - | 8SM |
| | KGRR 241553Z 10018G24KT 8SM BKN013 OVC090 M02/M06 A3024 RMK AO2 SLP250 T10221056 |
| 10:22 EST |  Overcast | -2°C / 28°F | -6°C / 21°F | 74% | 1024 mb (30.24 in) | E 33 kph (E 20.7 mph) | - | 8SM |
| | KGRR 241522Z 10018KT 8SM BKN013 OVC095 M02/M06 A3024 RMK AO2 |
| 09:53 EST |  Overcast | -2°C / 28°F | -6°C / 21°F | 74% | 1024 mb (30.24 in) | E 32 kph (E 19.6 mph) | - | 9SM |
| | KGRR 241453Z 10017G26KT 9SM SCT013 OVC090 M02/M06 A3024 RMK AO2 PK WND 10026/1452 SLP253 T10221061 53000 |
| 08:53 EST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1024 mb (30.24 in) | E 33 kph (E 20.7 mph) | - | 9SM |
| | KGRR 241353Z 10018KT 9SM FEW013 SCT055 OVC085 M03/M06 A3023 RMK AO2 PK WND 10026/1317 SLP248 T10281061 |
| 07:53 EST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1024 mb (30.24 in) | E 32 kph (E 19.6 mph) | - | 10SM |
| | KGRR 241253Z 10017KT 10SM OVC049 M03/M06 A3023 RMK AO2 SLP249 T10281061 |
| 06:53 EST |  Overcast | -3°C / 27°F | -7°C / 19°F | 74% | 1024 mb (30.24 in) | E 28 kph (E 17.3 mph) | - | 10SM |
| | KGRR 241153Z 09015KT 10SM OVC050 M03/M07 A3024 RMK AO2 SLP252 4/004 60000 T10281067 11028 21044 56013 |
| 05:53 EST |  Overcast | -3°C / 27°F | -7°C / 19°F | 74% | 1024 mb (30.24 in) | E 24 kph (E 15 mph) | - | 10SM |
| | KGRR 241053Z 09013KT 10SM OVC047 M03/M07 A3025 RMK AO2 SLP256 T10331067 |
| 04:53 EST |  Overcast | -3°C / 27°F | -7°C / 19°F | 74% | 1024 mb (30.24 in) | E 30 kph (E 18.4 mph) | - | 10SM |
| | KGRR 240953Z AUTO 08016KT 10SM OVC047 M03/M07 A3025 RMK AO2 SLP256 T10331072 |
| 03:53 EST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1025 mb (30.27 in) | E 28 kph (E 17.3 mph) | 0.00 mm (0.00 in) | 10SM |
| | KGRR 240853Z AUTO 09015KT 10SM OVC049 M04/M08 A3028 RMK AO2 UPB0757E27 SLP266 P0000 60000 T10391078 53004 |
| 02:53 EST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1025 mb (30.27 in) | E 28 kph (E 17.3 mph) | - | 10SM |
| | KGRR 240753Z AUTO 09015KT 10SM OVC045 M04/M08 A3028 RMK AO2 SLP264 T10441078 |
| 01:53 EST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1025 mb (30.27 in) | E 28 kph (E 17.3 mph) | - | 10SM |
| | KGRR 240653Z AUTO 09015G21KT 10SM OVC045 M04/M08 A3027 RMK AO2 SLP260 T10441083 |
| 00:53 EST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1025 mb (30.27 in) | E 32 kph (E 19.6 mph) | - | 10SM |
| | KGRR 240553Z AUTO 09017KT 10SM OVC045 M04/M08 A3027 RMK AO2 SLP262 T10441083 11028 21044 57004 |