| 23:35 CST |  Clear | 1°C / 34°F | 0°C / 32°F | 93% | 1007 mb (29.74 in) | Calm | - | 10SM |
| | KSYN 010535Z AUTO 00000KT 10SM CLR 01/00 A2973 RMK AO2 T00121003 |
| 23:16 CST |  Clear | 1°C / 34°F | -1°C / 30°F | 87% | 1007 mb (29.74 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KSYN 010516Z AUTO 20003KT 10SM CLR 01/M01 A2974 RMK AO2 T00081007 |
| 22:55 CST |  Clear | 1°C / 34°F | 0°C / 32°F | 93% | 1007 mb (29.74 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KSYN 010455Z AUTO 20004KT 10SM CLR 01/00 A2974 RMK AO2 T00141005 |
| 22:36 CST |  Clear | 2°C / 36°F | 0°C / 32°F | 87% | 1007 mb (29.74 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KSYN 010436Z AUTO 19004KT 10SM CLR 02/00 A2974 RMK AO2 T00231001 |
| 22:16 CST |  Clear | 3°C / 37°F | 0°C / 32°F | 81% | 1007 mb (29.74 in) | Calm | - | 10SM |
| | KSYN 010416Z AUTO 00000KT 10SM CLR 03/00 A2974 RMK AO2 T00260000 |
| 21:56 CST |  Clear | 3°C / 37°F | 0°C / 32°F | 81% | 1007 mb (29.74 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KSYN 010356Z AUTO 20004KT 10SM CLR 03/00 A2974 RMK AO2 T00260000 |
| 21:35 CST |  Clear | 2°C / 36°F | 0°C / 32°F | 87% | 1007 mb (29.74 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSYN 010335Z AUTO 21004KT 10SM CLR 02/00 A2974 RMK AO2 T00241001 |
| 21:16 CST |  Clear | 4°C / 39°F | 0°C / 32°F | 75% | 1007 mb (29.74 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KSYN 010316Z AUTO 26004KT 10SM CLR 04/00 A2975 RMK AO2 T00350002 |
| 20:55 CST |  Clear | 4°C / 39°F | 0°C / 32°F | 75% | 1007 mb (29.74 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KSYN 010255Z AUTO 26003KT 10SM CLR 04/00 A2975 RMK AO2 T00350002 |
| 20:35 CST |  Clear | 4°C / 39°F | 1°C / 34°F | 81% | 1007 mb (29.74 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KSYN 010235Z AUTO 24005KT 10SM CLR 04/01 A2975 RMK AO2 T00400005 |
| 20:16 CST |  Clear | 5°C / 41°F | 1°C / 34°F | 76% | 1007 mb (29.74 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KSYN 010216Z AUTO 25005KT 10SM CLR 05/01 A2975 RMK AO2 T00470007 |
| 19:56 CST |  Clear | 5°C / 41°F | 1°C / 34°F | 76% | 1007 mb (29.74 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KSYN 010156Z AUTO 26007KT 10SM CLR 05/01 A2975 RMK AO2 T00480010 |
| 19:36 CST |  Clear | 5°C / 41°F | 1°C / 34°F | 76% | 1007 mb (29.74 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KSYN 010136Z AUTO 24006KT 10SM CLR 05/01 A2975 RMK AO2 T00500010 |
| 19:16 CST |  Clear | 5°C / 41°F | 1°C / 34°F | 76% | 1007 mb (29.74 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KSYN 010116Z AUTO 25004KT 10SM CLR 05/01 A2974 RMK AO2 T00500010 |
| 18:56 CST |  Clear | 6°C / 43°F | 1°C / 34°F | 71% | 1007 mb (29.74 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KSYN 010056Z AUTO 24005KT 10SM CLR 06/01 A2973 RMK AO2 T00560011 |
| 18:36 CST |  Clear | 6°C / 43°F | 1°C / 34°F | 71% | 1007 mb (29.74 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KSYN 010036Z AUTO 24006KT 10SM CLR 06/01 A2973 RMK AO2 T00560011 |
| 18:16 CST |  Clear | 6°C / 43°F | 1°C / 34°F | 71% | 1007 mb (29.74 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KSYN 010016Z AUTO 23006KT 10SM CLR 06/01 A2973 RMK AO2 T00550011 |
| 17:36 CST |  Clear | 6°C / 43°F | 1°C / 34°F | 71% | 1006 mb (29.71 in) | SW 17 kph (SW 10.4 mph) | - | 10SM |
| | KSYN 302336Z AUTO 23009KT 10SM CLR 06/01 A2972 RMK AO2 T00580013 |
| 17:15 CST |  Clear | 5°C / 41°F | 1°C / 34°F | 76% | 1006 mb (29.71 in) | SW 15 kph (SW 9.2 mph) | - | 10SM |
| | KSYN 302315Z AUTO 22008KT 10SM CLR 05/01 A2972 RMK AO2 T00490010 |
| 16:56 CST |  Clear | 6°C / 43°F | 1°C / 34°F | 71% | 1007 mb (29.74 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KSYN 302256Z AUTO 24006KT 10SM CLR 06/01 A2973 RMK AO2 T00590008 |
| 16:36 CST |  Clear | 7°C / 45°F | 1°C / 34°F | 66% | 1007 mb (29.74 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KSYN 302236Z AUTO 24006KT 10SM CLR 07/01 A2973 RMK AO2 T00650010 |
| 16:16 CST |  Clear | 7°C / 45°F | 1°C / 34°F | 66% | 1007 mb (29.74 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KSYN 302216Z AUTO 24006KT 10SM CLR 07/01 A2973 RMK AO2 T00710010 |
| 15:56 CST |  Clear | 7°C / 45°F | 1°C / 34°F | 66% | 1007 mb (29.74 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KSYN 302156Z AUTO 24006KT 10SM CLR 07/01 A2973 RMK AO2 T00700011 |
| 15:36 CST |  Clear | 6°C / 43°F | 1°C / 34°F | 71% | 1006 mb (29.71 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KSYN 302136Z AUTO 23006KT 10SM CLR 06/01 A2972 RMK AO2 T00620011 |
| 15:16 CST |  Partly Cloudy | 6°C / 43°F | 1°C / 34°F | 71% | 1007 mb (29.74 in) | SW 13 kph (SW 8.1 mph) | - | 10SM |
| | KSYN 302116Z AUTO 21007KT 10SM SCT120 06/01 A2973 RMK AO2 T00620010 |
| 14:56 CST |  Mostly Cloudy | 7°C / 45°F | 1°C / 34°F | 66% | 1007 mb (29.74 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KSYN 302056Z AUTO 21010KT 10SM BKN120 07/01 A2974 RMK AO2 T00650006 |
| 14:36 CST |  Overcast | 6°C / 43°F | 1°C / 34°F | 71% | 1007 mb (29.74 in) | SW 20 kph (SW 12.7 mph) | - | 10SM |
| | KSYN 302036Z AUTO 22011KT 10SM BKN100 OVC120 06/01 A2974 RMK AO2 T00640005 |
| 14:16 CST |  Overcast | 6°C / 43°F | 0°C / 32°F | 66% | 1008 mb (29.77 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KSYN 302016Z AUTO 23010KT 10SM OVC100 06/00 A2976 RMK AO2 T00630001 |
| 13:56 CST |  Overcast | 6°C / 43°F | 0°C / 32°F | 66% | 1008 mb (29.77 in) | SW 20 kph (SW 12.7 mph) | - | 10SM |
| | KSYN 301956Z AUTO 23011KT 10SM OVC090 06/00 A2978 RMK AO2 T00610000 |
| 13:36 CST |  Overcast | 6°C / 43°F | 0°C / 32°F | 66% | 1008 mb (29.77 in) | SW 22 kph (SW 13.8 mph) | - | 10SM |
| | KSYN 301936Z AUTO 23012KT 10SM OVC090 06/00 A2978 RMK AO2 T00600000 |
| 13:16 CST |  Mostly Cloudy | 6°C / 43°F | 0°C / 32°F | 66% | 1008 mb (29.77 in) | SW 24 kph (SW 15 mph) | - | 10SM |
| | KSYN 301916Z AUTO 23013KT 10SM BKN090 06/00 A2978 RMK AO2 T00611002 |
| 12:56 CST |  Mostly Cloudy | 6°C / 43°F | 0°C / 32°F | 66% | 1009 mb (29.8 in) | SW 20 kph (SW 12.7 mph) | - | 10SM |
| | KSYN 301856Z AUTO 22011KT 10SM BKN090 06/00 A2979 RMK AO2 T00591003 |
| 12:35 CST |  Overcast | 6°C / 43°F | 0°C / 32°F | 66% | 1009 mb (29.8 in) | SW 24 kph (SW 15 mph) | - | 10SM |
| | KSYN 301835Z AUTO 21013KT 10SM OVC090 06/00 A2979 RMK AO2 T00551004 |
| 12:15 CST |  Partly Cloudy | 5°C / 41°F | -1°C / 30°F | 66% | 1009 mb (29.8 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KSYN 301815Z AUTO 21010KT 10SM SCT090 05/M01 A2981 RMK AO2 T00501006 |
| 11:55 CST |  Clear | 5°C / 41°F | -1°C / 30°F | 66% | 1010 mb (29.83 in) | SW 26 kph (SW 16.1 mph) | - | 10SM |
| | KSYN 301755Z AUTO 22014KT 10SM CLR 05/M01 A2982 RMK AO2 T00481009 10048 21023 |
| 11:36 CST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1010 mb (29.83 in) | SW 24 kph (SW 15 mph) | - | 10SM |
| | KSYN 301736Z AUTO 23013KT 10SM CLR 04/M01 A2984 RMK AO2 T00431012 |
| 11:16 CST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1010 mb (29.83 in) | SW 24 kph (SW 15 mph) | - | 10SM |
| | KSYN 301716Z AUTO 23013KT 10SM CLR 04/M01 A2984 RMK AO2 T00391013 |
| 10:55 CST |  Clear | 3°C / 37°F | -2°C / 28°F | 70% | 1011 mb (29.85 in) | SW 22 kph (SW 13.8 mph) | - | 10SM |
| | KSYN 301655Z AUTO 22012KT 10SM CLR 03/M02 A2986 RMK AO2 T00321017 |
| 10:36 CST |  Clear | 3°C / 37°F | -2°C / 28°F | 70% | 1012 mb (29.88 in) | SW 22 kph (SW 13.8 mph) | - | 10SM |
| | KSYN 301636Z AUTO 22012KT 10SM CLR 03/M02 A2987 RMK AO2 T00261017 |
| 10:15 CST |  Partly Cloudy | 2°C / 36°F | -2°C / 28°F | 75% | 1012 mb (29.88 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KSYN 301615Z AUTO 22010KT 10SM SCT070 02/M02 A2988 RMK AO2 T00201016 |
| 09:56 CST |  Mostly Cloudy | 1°C / 34°F | -2°C / 28°F | 81% | 1012 mb (29.88 in) | SW 20 kph (SW 12.7 mph) | - | 10SM |
| | KSYN 301556Z AUTO 21011G17KT 10SM BKN070 01/M02 A2988 RMK AO2 T00101020 |
| 09:36 CST |  Overcast | 1°C / 34°F | -2°C / 28°F | 81% | 1012 mb (29.88 in) | SW 22 kph (SW 13.8 mph) | - | 10SM |
| | KSYN 301536Z AUTO 22012KT 10SM OVC070 01/M02 A2989 RMK AO2 T00071021 |
| 09:15 CST |  Overcast | 0°C / 32°F | -2°C / 28°F | 87% | 1012 mb (29.88 in) | SW 17 kph (SW 10.4 mph) | - | 10SM |
| | KSYN 301515Z AUTO 21009KT 10SM OVC080 00/M02 A2989 RMK AO2 T00031022 |
| 08:56 CST |  Overcast | 0°C / 32°F | -2°C / 28°F | 87% | 1013 mb (29.91 in) | SW 15 kph (SW 9.2 mph) | - | 10SM |
| | KSYN 301456Z AUTO 21008KT 10SM OVC080 00/M02 A2990 RMK AO2 T00001025 |
| 08:35 CST |  Overcast | 0°C / 32°F | -3°C / 27°F | 80% | 1013 mb (29.91 in) | SW 20 kph (SW 12.7 mph) | - | 10SM |
| | KSYN 301435Z AUTO 21011KT 10SM OVC080 00/M03 A2991 RMK AO2 T00001027 |
| 08:16 CST |  Mostly Cloudy | 0°C / 32°F | -3°C / 27°F | 80% | 1013 mb (29.91 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KSYN 301416Z AUTO 21010G15KT 10SM BKN090 00/M03 A2991 RMK AO2 T10031030 |
| 07:56 CST |  Clear | -1°C / 30°F | -3°C / 27°F | 86% | 1013 mb (29.91 in) | SW 17 kph (SW 10.4 mph) | - | 10SM |
| | KSYN 301356Z AUTO 21009KT 10SM CLR M01/M03 A2991 RMK AO2 T10101035 |
| 07:36 CST |  Partly Cloudy | -1°C / 30°F | -3°C / 27°F | 86% | 1013 mb (29.91 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KSYN 301336Z AUTO 21010KT 10SM SCT036 SCT110 M01/M03 A2991 RMK AO2 T10101035 |
| 07:15 CST |  Mostly Cloudy | -1°C / 30°F | -3°C / 27°F | 86% | 1013 mb (29.91 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KSYN 301315Z AUTO 20008KT 10SM BKN038 M01/M03 A2992 RMK AO2 T10101035 |
| 06:56 CST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1013 mb (29.91 in) | SW 17 kph (SW 10.4 mph) | - | 10SM |
| | KSYN 301256Z AUTO 21009KT 10SM OVC042 M01/M03 A2992 RMK AO2 T10101032 |
| 06:35 CST |  Mostly Cloudy | -1°C / 30°F | -3°C / 27°F | 86% | 1014 mb (29.94 in) | SW 15 kph (SW 9.2 mph) | - | 10SM |
| | KSYN 301235Z AUTO 21008KT 10SM BKN042 M01/M03 A2993 RMK AO2 T10151035 |
| 06:16 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1014 mb (29.94 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KSYN 301216Z AUTO 20006KT 10SM CLR M02/M04 A2994 RMK AO2 T10201038 |
| 05:56 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1014 mb (29.94 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KSYN 301156Z AUTO 21006KT 10SM CLR M02/M04 A2995 RMK AO2 T10241040 10017 21024 |
| 05:36 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1014 mb (29.94 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KSYN 301136Z AUTO 20003KT 10SM CLR M02/M04 A2994 RMK AO2 T10221040 |
| 05:16 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1014 mb (29.94 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KSYN 301116Z AUTO 21005KT 10SM CLR M02/M04 A2994 RMK AO2 T10201038 |
| 04:55 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1014 mb (29.94 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KSYN 301055Z AUTO 20004KT 10SM CLR M02/M04 A2995 RMK AO2 T10201037 |
| 04:36 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1014 mb (29.94 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KSYN 301036Z AUTO 19003KT 10SM CLR M02/M04 A2995 RMK AO2 T10201037 |
| 04:15 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1015 mb (29.97 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSYN 301015Z AUTO 21004KT 10SM CLR M02/M04 A2996 RMK AO2 T10201038 |
| 03:55 CST |  Partly Cloudy | -2°C / 28°F | -4°C / 25°F | 86% | 1015 mb (29.97 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KSYN 300955Z AUTO 21003KT 10SM SCT040 M02/M04 A2997 RMK AO2 T10191036 |
| 03:35 CST |  Partly Cloudy | -2°C / 28°F | -4°C / 25°F | 86% | 1015 mb (29.97 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSYN 300935Z AUTO 21004KT 10SM SCT040 M02/M04 A2997 RMK AO2 T10201036 |
| 03:16 CST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1015 mb (29.97 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KSYN 300916Z AUTO 20003KT 10SM CLR M02/M04 A2997 RMK AO2 T10161036 |
| 02:56 CST |  Clear | -1°C / 30°F | -3°C / 27°F | 86% | 1015 mb (29.97 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KSYN 300856Z AUTO 21003KT 10SM CLR M01/M03 A2997 RMK AO2 T10131033 |
| 02:36 CST |  Clear | 0°C / 32°F | -3°C / 27°F | 80% | 1015 mb (29.97 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSYN 300836Z AUTO 23004KT 10SM CLR 00/M03 A2998 RMK AO2 T10011033 |
| 02:16 CST |  Clear | 0°C / 32°F | -3°C / 27°F | 80% | 1015 mb (29.97 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KSYN 300816Z AUTO 23005KT 10SM CLR 00/M03 A2998 RMK AO2 T00001031 |
| 01:56 CST |  Clear | 0°C / 32°F | -3°C / 27°F | 80% | 1015 mb (29.97 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KSYN 300756Z AUTO 24005KT 10SM CLR 00/M03 A2998 RMK AO2 T00011026 |
| 01:35 CST |  Clear | 0°C / 32°F | -2°C / 28°F | 87% | 1015 mb (29.97 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KSYN 300735Z AUTO 24005KT 10SM CLR 00/M02 A2998 RMK AO2 T00031021 |
| 01:15 CST |  Partly Cloudy | 1°C / 34°F | -2°C / 28°F | 81% | 1015 mb (29.97 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KSYN 300715Z AUTO 25005KT 10SM SCT045 01/M02 A2998 RMK AO2 T00061020 |
| 00:56 CST |  Mostly Cloudy | 1°C / 34°F | -2°C / 28°F | 81% | 1016 mb (30 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KSYN 300656Z AUTO 25006KT 10SM BKN047 01/M02 A2999 RMK AO2 T00111020 |
| 00:36 CST |  Overcast | 2°C / 36°F | -2°C / 28°F | 75% | 1016 mb (30 in) | W 13 kph (W 8.1 mph) | - | 10SM |
| | KSYN 300636Z AUTO 27007KT 10SM OVC047 02/M02 A2999 RMK AO2 T00151018 |
| 00:15 CST |  Overcast | 2°C / 36°F | -1°C / 30°F | 81% | 1016 mb (30 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KSYN 300615Z AUTO 26007KT 10SM OVC047 02/M01 A2999 RMK AO2 T00171015 |