| 10:41 EST |  Overcast Fog | 3°C / 37°F | 3°C / 37°F | 100% | 996 mb (29.41 in) | NNE 6 kph (NNE 3.5 mph) | - | M1/4SM |
| | KLWB 091541Z AUTO 02003KT M1/4SM FG OVC001 03/03 A2941 RMK AO2 |
| 10:21 EST |  Overcast Fog | 2°C / 36°F | 2°C / 36°F | 100% | 996 mb (29.41 in) | NE 6 kph (NE 3.5 mph) | - | 1/4SM |
| | KLWB 091521Z AUTO 05003KT 1/4SM FG OVC001 02/02 A2942 RMK AO2 |
| 10:02 EST |  Overcast Fog | 2°C / 36°F | 2°C / 36°F | 100% | 997 mb (29.44 in) | NNE 9 kph (NNE 5.8 mph) | - | M1/4SM |
| | KLWB 091502Z AUTO 02005KT M1/4SM FG OVC001 02/02 A2943 RMK AO2 |
| 09:42 EST |  Overcast Fog | 2°C / 36°F | 2°C / 36°F | 100% | 997 mb (29.44 in) | NNE 6 kph (NNE 3.5 mph) | - | M1/4SM |
| | KLWB 091442Z AUTO 02003KT M1/4SM FG OVC001 02/02 A2944 RMK AO2 |
| 09:22 EST |  Overcast Fog | 2°C / 36°F | 2°C / 36°F | 100% | 997 mb (29.44 in) | NE 7 kph (NE 4.6 mph) | - | 1/4SM |
| | KLWB 091422Z AUTO 03004KT 1/4SM FG OVC001 02/02 A2943 RMK AO2 |
| 09:01 EST |  Overcast Fog | 1°C / 34°F | 1°C / 34°F | 100% | 997 mb (29.44 in) | NE 7 kph (NE 4.6 mph) | - | 1/4SM |
| | KLWB 091401Z AUTO 03004KT 1/4SM FG OVC001 01/01 A2944 RMK AO2 |
| 08:41 EST |  Overcast Fog | 1°C / 34°F | 1°C / 34°F | 100% | 997 mb (29.44 in) | NE 9 kph (NE 5.8 mph) | - | M1/4SM |
| | KLWB 091341Z AUTO 03005KT M1/4SM FG OVC001 01/01 A2945 RMK AO2 |
| 08:23 EST |  Overcast Fog | 1°C / 34°F | 1°C / 34°F | 100% | 998 mb (29.47 in) | ENE 9 kph (ENE 5.8 mph) | - | M1/4SM |
| | KLWB 091323Z AUTO 06005KT M1/4SM FG OVC001 01/01 A2946 RMK AO2 LTG DSNT N |
| 08:03 EST |  Overcast Fog | 1°C / 34°F | 1°C / 34°F | 100% | 998 mb (29.47 in) | NE 7 kph (NE 4.6 mph) | - | M1/4SM |
| | KLWB 091303Z AUTO 03004KT M1/4SM FG OVC001 01/01 A2946 RMK AO2 |
| 07:44 EST |  Overcast Fog | 1°C / 34°F | 1°C / 34°F | 100% | 998 mb (29.47 in) | NE 9 kph (NE 5.8 mph) | - | 1/4SM |
| | KLWB 091244Z AUTO 05005KT 1/4SM FG OVC001 01/01 A2946 RMK AO2 |
| 07:21 EST |  Overcast Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 999 mb (29.5 in) | NE 13 kph (NE 8.1 mph) | - | 3SM |
| | KLWB 091221Z AUTO 03007KT 3SM BR OVC001 01/01 A2949 RMK AO2 LTG DSNT SE |
| 07:01 EST |  Overcast | 2°C / 36°F | 2°C / 36°F | 100% | 999 mb (29.5 in) | NE 7 kph (NE 4.6 mph) | - | 7SM |
| | KLWB 091201Z AUTO 04004KT 7SM BKN001 BKN010 OVC015 02/02 A2950 RMK AO2 |
| 06:41 EST |  Mostly Cloudy | 2°C / 36°F | 2°C / 36°F | 100% | 999 mb (29.5 in) | NNE 11 kph (NNE 6.9 mph) | - | 10SM |
| | KLWB 091141Z AUTO 02006KT 10SM SCT001 BKN010 BKN015 02/02 A2951 RMK AO2 |
| 06:22 EST |  Overcast | 2°C / 36°F | 2°C / 36°F | 100% | 1000 mb (29.53 in) | NNE 13 kph (NNE 8.1 mph) | - | 10SM |
| | KLWB 091122Z AUTO 02007KT 10SM SCT001 BKN011 OVC015 02/02 A2952 RMK AO2 |
| 06:02 EST |  Overcast Unknown Precip | 2°C / 36°F | 2°C / 36°F | 100% | 1000 mb (29.53 in) | NE 7 kph (NE 4.6 mph) | - | 10SM |
| | KLWB 091102Z AUTO 05004KT 10SM UP BKN014 OVC021 02/02 A2954 RMK AO2 |
| 05:41 EST |  Overcast Unknown Precip | 2°C / 36°F | 2°C / 36°F | 100% | 1001 mb (29.56 in) | NE 7 kph (NE 4.6 mph) | - | 10SM |
| | KLWB 091041Z AUTO 04004KT 10SM UP BKN014 OVC021 02/02 A2957 RMK AO2 |
| 05:23 EST |  Overcast Unknown Precip | 2°C / 36°F | 2°C / 36°F | 100% | 1002 mb (29.59 in) | NNE 6 kph (NNE 3.5 mph) | - | 10SM |
| | KLWB 091023Z AUTO 02003KT 10SM UP SCT011 BKN016 OVC021 02/02 A2960 RMK AO2 |
| 05:02 EST |  Overcast Unknown Precip | 2°C / 36°F | 2°C / 36°F | 100% | 1002 mb (29.59 in) | N 11 kph (N 6.9 mph) | - | 7SM |
| | KLWB 091002Z AUTO 36006KT 7SM UP SCT014 BKN019 OVC026 02/02 A2959 RMK AO2 |
| 04:41 EST |  Overcast Unknown Precip | 2°C / 36°F | 2°C / 36°F | 100% | 1001 mb (29.56 in) | NE 9 kph (NE 5.8 mph) | - | 4SM |
| | KLWB 090941Z AUTO 03005KT 4SM UP SCT010 BKN020 OVC025 02/02 A2957 RMK AO2 LTG DSNT S |
| 04:21 EST |  Overcast Unknown Precip | 2°C / 36°F | 2°C / 36°F | 100% | 1000 mb (29.53 in) | NE 9 kph (NE 5.8 mph) | - | 2 1/2SM |
| | KLWB 090921Z AUTO 05005KT 2 1/2SM UP SCT010 BKN018 OVC031 02/02 A2954 RMK AO2 |
| 04:01 EST |  Overcast Unknown Precip | 2°C / 36°F | 1°C / 34°F | 93% | 1002 mb (29.59 in) | NE 11 kph (NE 6.9 mph) | - | 2SM |
| | KLWB 090901Z AUTO 05006KT 2SM UP SCT009 OVC015 02/01 A2958 RMK AO2 |
| 03:41 EST |  Overcast Unknown Precip | 2°C / 36°F | 2°C / 36°F | 100% | 1002 mb (29.59 in) | NE 9 kph (NE 5.8 mph) | - | 2 1/2SM |
| | KLWB 090841Z AUTO 04005KT 2 1/2SM UP SCT010 OVC017 02/02 A2960 RMK AO2 |
| 03:22 EST |  Overcast Unknown Precip | 2°C / 36°F | 2°C / 36°F | 100% | 1003 mb (29.62 in) | ENE 9 kph (ENE 5.8 mph) | - | 2 1/2SM |
| | KLWB 090822Z AUTO 06005KT 2 1/2SM UP SCT011 BKN016 OVC020 02/02 A2961 RMK AO2 |
| 03:02 EST |  Overcast Unknown Precip | 2°C / 36°F | 1°C / 34°F | 93% | 1004 mb (29.65 in) | NE 7 kph (NE 4.6 mph) | - | 2SM |
| | KLWB 090802Z AUTO 03004KT 2SM UP OVC013 02/01 A2964 RMK AO2 |
| 02:41 EST |  Overcast Unknown Precip | 2°C / 36°F | 2°C / 36°F | 100% | 1004 mb (29.65 in) | NE 9 kph (NE 5.8 mph) | - | 3SM |
| | KLWB 090741Z AUTO 03005KT 3SM UP SCT011 BKN017 OVC023 02/02 A2965 RMK AO2 |
| 02:21 EST |  Overcast Unknown Precip | 2°C / 36°F | 1°C / 34°F | 93% | 1005 mb (29.68 in) | NE 6 kph (NE 3.5 mph) | - | 2SM |
| | KLWB 090721Z AUTO 05003KT 2SM UP SCT008 OVC014 02/01 A2968 RMK AO2 |
| 02:01 EST |  Overcast Unknown Precip | 1°C / 34°F | 1°C / 34°F | 100% | 1006 mb (29.71 in) | NE 7 kph (NE 4.6 mph) | - | 1 3/4SM |
| | KLWB 090701Z AUTO 04004KT 1 3/4SM UP SCT004 OVC014 01/01 A2971 RMK AO2 |
| 01:41 EST |  Overcast Unknown Precip | 2°C / 36°F | 1°C / 34°F | 93% | 1007 mb (29.74 in) | NE 7 kph (NE 4.6 mph) | - | 2SM |
| | KLWB 090641Z AUTO 03004KT 2SM UP OVC014 02/01 A2973 RMK AO2 |
| 01:21 EST |  Overcast Unknown Precip | 2°C / 36°F | 1°C / 34°F | 93% | 1007 mb (29.74 in) | NE 9 kph (NE 5.8 mph) | - | 3SM |
| | KLWB 090621Z AUTO 05005KT 3SM UP OVC018 02/01 A2973 RMK AO2 |
| 01:01 EST |  Overcast Unknown Precip | 2°C / 36°F | 1°C / 34°F | 93% | 1008 mb (29.77 in) | NE 13 kph (NE 8.1 mph) | - | 2SM |
| | KLWB 090601Z AUTO 03007KT 2SM UP OVC016 02/01 A2977 RMK AO2 |
| 00:42 EST |  Overcast Unknown Precip | 2°C / 36°F | 1°C / 34°F | 93% | 1009 mb (29.8 in) | NE 6 kph (NE 3.5 mph) | - | 4SM |
| | KLWB 090542Z AUTO 05003KT 4SM UP OVC012 02/01 A2980 RMK AO2 |
| 00:22 EST |  Overcast Unknown Precip | 2°C / 36°F | 1°C / 34°F | 93% | 1009 mb (29.8 in) | Calm | - | 4SM |
| | KLWB 090522Z AUTO 00000KT 4SM UP OVC012 02/01 A2981 RMK AO2 |
| 00:01 EST |  Overcast Unknown Precip | 2°C / 36°F | 1°C / 34°F | 93% | 1009 mb (29.8 in) | E 7 kph (E 4.6 mph) | - | 3SM |
| | KLWB 090501Z AUTO 10004KT 3SM UP OVC012 02/01 A2981 RMK AO2 |