| 23:22 CST |  Overcast Fog And Mist | 0°C / 32°F | -2°C / 28°F | 87% | 1022 mb (30.18 in) | ESE 9 kph (ESE 5.8 mph) | - | 2SM |
| | KCIR 220522Z AUTO 11005KT 2SM BR OVC004 M00/M02 A3018 RMK AO2 |
| 23:02 CST |  Overcast Fog And Mist | 0°C / 32°F | -2°C / 28°F | 87% | 1022 mb (30.18 in) | E 7 kph (E 4.6 mph) | - | 2SM |
| | KCIR 220502Z AUTO 10004KT 2SM BR OVC004 00/M02 A3018 RMK AO2 |
| 22:42 CST |  Overcast Fog And Mist | 0°C / 32°F | -2°C / 28°F | 87% | 1022 mb (30.18 in) | ENE 11 kph (ENE 6.9 mph) | - | 2 1/2SM |
| | KCIR 220442Z AUTO 07006KT 2 1/2SM BR OVC004 M00/M02 A3018 RMK AO2 |
| 22:22 CST |  Overcast Fog And Mist | 0°C / 32°F | -2°C / 28°F | 87% | 1022 mb (30.18 in) | E 11 kph (E 6.9 mph) | - | 2 1/2SM |
| | KCIR 220422Z AUTO 08006KT 2 1/2SM BR OVC002 00/M02 A3019 RMK AO2 |
| 22:02 CST |  Overcast Fog And Mist | 0°C / 32°F | -2°C / 28°F | 87% | 1022 mb (30.18 in) | E 11 kph (E 6.9 mph) | - | 1 3/4SM |
| | KCIR 220402Z AUTO 10006KT 1 3/4SM BR OVC002 M00/M02 A3019 RMK AO2 |
| 21:42 CST |  Overcast Fog And Mist | -1°C / 30°F | -2°C / 28°F | 93% | 1022 mb (30.18 in) | E 9 kph (E 5.8 mph) | - | 1SM |
| | KCIR 220342Z AUTO 08005KT 1SM BR OVC002 M01/M02 A3018 RMK AO2 |
| 21:22 CST |  Overcast Fog And Mist | -1°C / 30°F | -2°C / 28°F | 93% | 1022 mb (30.18 in) | E 13 kph (E 8.1 mph) | - | 2 1/2SM |
| | KCIR 220322Z AUTO 10007KT 2 1/2SM BR OVC004 M01/M02 A3019 RMK AO2 |
| 21:02 CST |  Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1023 mb (30.21 in) | SE 7 kph (SE 4.6 mph) | - | 3SM |
| | KCIR 220302Z AUTO 12004KT 3SM BR M01/M03 A3020 RMK AO2 SKY OBSCURED |
| 20:42 CST |  Clear Fog And Mist | -1°C / 30°F | -2°C / 28°F | 93% | 1022 mb (30.18 in) | SE 6 kph (SE 3.5 mph) | - | 3SM |
| | KCIR 220242Z AUTO 12003KT 3SM BR CLR M01/M02 A3019 RMK AO2 |
| 20:22 CST |  Clear Fog And Mist | 0°C / 32°F | -2°C / 28°F | 87% | 1022 mb (30.18 in) | ESE 9 kph (ESE 5.8 mph) | - | 3SM |
| | KCIR 220222Z AUTO 11005KT 3SM BR CLR M00/M02 A3018 RMK AO2 |
| 20:02 CST |  Clear Fog And Mist | 0°C / 32°F | -2°C / 28°F | 87% | 1022 mb (30.18 in) | E 9 kph (E 5.8 mph) | - | 3SM |
| | KCIR 220202Z AUTO 10005KT 3SM BR CLR M00/M02 A3019 RMK AO2 |
| 19:42 CST |  Clear Fog And Mist | 0°C / 32°F | -2°C / 28°F | 87% | 1022 mb (30.18 in) | E 7 kph (E 4.6 mph) | - | 3SM |
| | KCIR 220142Z AUTO 09004KT 3SM BR CLR M00/M02 A3019 RMK AO2 |
| 19:22 CST |  Clear Fog And Mist | 0°C / 32°F | -3°C / 27°F | 80% | 1023 mb (30.21 in) | Calm | - | 4SM |
| | KCIR 220122Z AUTO 00000KT 4SM BR CLR M00/M03 A3020 RMK AO2 |
| 19:02 CST |  Clear Fog And Mist | 0°C / 32°F | -2°C / 28°F | 87% | 1023 mb (30.21 in) | SE 7 kph (SE 4.6 mph) | - | 5SM |
| | KCIR 220102Z AUTO 14004KT 5SM BR CLR M00/M02 A3020 RMK AO2 |
| 18:42 CST |  Clear Fog And Mist | 0°C / 32°F | -2°C / 28°F | 87% | 1023 mb (30.21 in) | SSE 7 kph (SSE 4.6 mph) | - | 5SM |
| | KCIR 220042Z AUTO 15004KT 5SM BR CLR 00/M02 A3020 RMK AO2 |
| 18:22 CST |  Clear Fog And Mist | 1°C / 34°F | -2°C / 28°F | 81% | 1023 mb (30.21 in) | SSE 9 kph (SSE 5.8 mph) | - | 5SM |
| | KCIR 220022Z AUTO 15005KT 5SM BR CLR 01/M02 A3020 RMK AO2 |
| 18:02 CST |  Clear Fog And Mist | 1°C / 34°F | -2°C / 28°F | 81% | 1023 mb (30.21 in) | SSE 7 kph (SSE 4.6 mph) | - | 5SM |
| | KCIR 220002Z AUTO 16004KT 5SM BR CLR 01/M02 A3020 RMK AO2 |
| 17:42 CST |  Clear | 0°C / 32°F | -2°C / 28°F | 87% | 1022 mb (30.18 in) | SE 7 kph (SE 4.6 mph) | - | 7SM |
| | KCIR 212342Z AUTO 14004KT 7SM CLR 00/M02 A3019 RMK AO2 |
| 17:22 CST |  Clear | 1°C / 34°F | -2°C / 28°F | 81% | 1022 mb (30.18 in) | E 6 kph (E 3.5 mph) | - | 7SM |
| | KCIR 212322Z AUTO 10003KT 7SM CLR 01/M02 A3018 RMK AO2 |
| 17:02 CST |  Clear | 1°C / 34°F | -2°C / 28°F | 81% | 1022 mb (30.18 in) | SE 7 kph (SE 4.6 mph) | - | 7SM |
| | KCIR 212302Z AUTO 13004KT 7SM CLR 01/M02 A3018 RMK AO2 |
| 16:42 CST |  Clear | 2°C / 36°F | -1°C / 30°F | 81% | 1022 mb (30.18 in) | SE 9 kph (SE 5.8 mph) | - | 7SM |
| | KCIR 212242Z AUTO 12005KT 7SM CLR 02/M01 A3018 RMK AO2 |
| 16:22 CST |  Clear | 3°C / 37°F | -1°C / 30°F | 75% | 1022 mb (30.18 in) | SE 7 kph (SE 4.6 mph) | - | 7SM |
| | KCIR 212222Z AUTO 13004KT 7SM CLR 03/M01 A3018 RMK AO2 |
| 16:02 CST |  Partly Cloudy | 3°C / 37°F | -1°C / 30°F | 75% | 1022 mb (30.18 in) | SE 6 kph (SE 3.5 mph) | - | 7SM |
| | KCIR 212202Z AUTO 12003KT 7SM SCT021 03/M01 A3018 RMK AO2 |
| 15:42 CST |  Overcast | 4°C / 39°F | -1°C / 30°F | 70% | 1022 mb (30.18 in) | Calm | - | 7SM |
| | KCIR 212142Z AUTO 00000KT 7SM OVC021 04/M01 A3018 RMK AO2 |
| 15:22 CST |  Mostly Cloudy | 4°C / 39°F | -1°C / 30°F | 70% | 1022 mb (30.18 in) | ENE 6 kph (ENE 3.5 mph) | - | 7SM |
| | KCIR 212122Z AUTO 06003KT 7SM BKN021 04/M01 A3018 RMK AO2 |
| 15:02 CST |  Clear | 4°C / 39°F | 0°C / 32°F | 75% | 1022 mb (30.18 in) | Calm | - | 7SM |
| | KCIR 212102Z AUTO 00000KT 7SM CLR 04/M00 A3018 RMK AO2 |
| 14:42 CST |  Partly Cloudy | 4°C / 39°F | -1°C / 30°F | 70% | 1022 mb (30.18 in) | ESE 6 kph (ESE 3.5 mph) | - | 7SM |
| | KCIR 212042Z AUTO 11003KT 7SM SCT015 04/M01 A3018 RMK AO2 |
| 14:22 CST |  Partly Cloudy | 4°C / 39°F | 0°C / 32°F | 75% | 1022 mb (30.18 in) | SSE 7 kph (SSE 4.6 mph) | - | 7SM |
| | KCIR 212022Z AUTO 15004KT 7SM SCT015 04/M00 A3018 RMK AO2 |
| 14:02 CST |  Partly Cloudy | 4°C / 39°F | 0°C / 32°F | 75% | 1022 mb (30.18 in) | Calm | - | 7SM |
| | KCIR 212002Z AUTO 00000KT 7SM SCT013 04/M00 A3018 RMK AO2 |
| 13:42 CST |  Partly Cloudy | 4°C / 39°F | 0°C / 32°F | 75% | 1022 mb (30.18 in) | Calm | - | 7SM |
| | KCIR 211942Z AUTO 00000KT 7SM SCT011 04/00 A3018 RMK AO2 |
| 13:22 CST |  Partly Cloudy | 3°C / 37°F | 0°C / 32°F | 81% | 1022 mb (30.18 in) | Calm | - | 7SM |
| | KCIR 211922Z AUTO 00000KT 7SM SCT011 03/00 A3018 RMK AO2 |
| 13:02 CST |  Mostly Cloudy | 3°C / 37°F | 0°C / 32°F | 81% | 1022 mb (30.18 in) | Calm | - | 7SM |
| | KCIR 211902Z AUTO 00000KT 7SM BKN009 03/00 A3019 RMK AO2 |
| 12:42 CST |  Overcast Hazy | 3°C / 37°F | 0°C / 32°F | 81% | 1023 mb (30.21 in) | Calm | - | 5SM |
| | KCIR 211842Z AUTO 00000KT 5SM HZ OVC009 03/00 A3020 RMK AO2 |
| 12:22 CST |  Overcast Fog And Mist | 2°C / 36°F | 0°C / 32°F | 87% | 1023 mb (30.21 in) | Calm | - | 5SM |
| | KCIR 211822Z AUTO 00000KT 5SM BR OVC007 02/00 A3020 RMK AO2 |
| 12:02 CST |  Overcast Fog And Mist | 1°C / 34°F | -1°C / 30°F | 87% | 1023 mb (30.21 in) | Calm | - | 5SM |
| | KCIR 211802Z AUTO 00000KT 5SM BR OVC007 01/M01 A3021 RMK AO2 |
| 11:42 CST |  Overcast Fog And Mist | 1°C / 34°F | -1°C / 30°F | 87% | 1023 mb (30.21 in) | NNE 6 kph (NNE 3.5 mph) | - | 4SM |
| | KCIR 211742Z AUTO 02003KT 4SM BR OVC007 01/M01 A3022 RMK AO2 |
| 11:22 CST |  Overcast Fog And Mist | 0°C / 32°F | -1°C / 30°F | 93% | 1023 mb (30.21 in) | NNW 7 kph (NNW 4.6 mph) | - | 4SM |
| | KCIR 211722Z AUTO 34004KT 4SM BR OVC005 00/M01 A3022 RMK AO2 |
| 11:02 CST |  Overcast Fog And Mist | 0°C / 32°F | -1°C / 30°F | 93% | 1024 mb (30.24 in) | N 6 kph (N 3.5 mph) | - | 4SM |
| | KCIR 211702Z AUTO 01003KT 4SM BR OVC005 00/M01 A3023 RMK AO2 |
| 10:42 CST |  Overcast Fog And Mist | 0°C / 32°F | -1°C / 30°F | 93% | 1024 mb (30.24 in) | Calm | - | 3SM |
| | KCIR 211642Z AUTO 00000KT 3SM BR OVC005 00/M01 A3023 RMK AO2 |
| 10:22 CST |  Overcast Fog And Mist | 0°C / 32°F | -1°C / 30°F | 93% | 1024 mb (30.24 in) | NE 6 kph (NE 3.5 mph) | - | 2 1/2SM |
| | KCIR 211622Z AUTO 04003KT 2 1/2SM BR OVC003 00/M01 A3023 RMK AO2 |
| 10:02 CST |  Overcast Fog And Mist | 0°C / 32°F | -2°C / 28°F | 87% | 1023 mb (30.21 in) | N 6 kph (N 3.5 mph) | - | 2 1/2SM |
| | KCIR 211602Z AUTO 01003KT 2 1/2SM BR OVC003 M00/M02 A3022 RMK AO2 |
| 09:42 CST |  Overcast Fog And Mist | -1°C / 30°F | -2°C / 28°F | 93% | 1023 mb (30.21 in) | Calm | - | 2 1/2SM |
| | KCIR 211542Z AUTO 00000KT 2 1/2SM BR OVC003 M01/M02 A3022 RMK AO2 |
| 09:22 CST |  Overcast Fog And Mist | -1°C / 30°F | -2°C / 28°F | 93% | 1023 mb (30.21 in) | NW 6 kph (NW 3.5 mph) | - | 2 1/2SM |
| | KCIR 211522Z AUTO 32003KT 2 1/2SM BR OVC003 M01/M02 A3022 RMK AO2 |
| 09:02 CST |  Overcast Fog And Mist | -1°C / 30°F | -2°C / 28°F | 93% | 1023 mb (30.21 in) | NNW 6 kph (NNW 3.5 mph) | - | 2 1/2SM |
| | KCIR 211502Z AUTO 34003KT 2 1/2SM BR OVC003 M01/M02 A3022 RMK AO2 |
| 08:42 CST |  Overcast Fog And Mist | -1°C / 30°F | -2°C / 28°F | 93% | 1023 mb (30.21 in) | NNW 6 kph (NNW 3.5 mph) | - | 2SM |
| | KCIR 211442Z AUTO 33003KT 2SM BR OVC003 M01/M02 A3021 RMK AO2 |
| 08:22 CST |  Overcast Fog And Mist | -1°C / 30°F | -2°C / 28°F | 93% | 1023 mb (30.21 in) | N 6 kph (N 3.5 mph) | - | 2SM |
| | KCIR 211422Z AUTO 35003KT 2SM BR OVC003 M01/M02 A3020 RMK AO2 |
| 08:02 CST |  Overcast Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1023 mb (30.21 in) | Calm | - | 2SM |
| | KCIR 211402Z AUTO 00000KT 2SM BR OVC003 M01/M03 A3020 RMK AO2 |
| 07:42 CST |  Overcast Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1023 mb (30.21 in) | N 6 kph (N 3.5 mph) | - | 1 1/2SM |
| | KCIR 211342Z AUTO 36003KT 1 1/2SM BR OVC003 M01/M03 A3020 RMK AO2 |
| 07:22 CST |  Overcast Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1022 mb (30.18 in) | N 6 kph (N 3.5 mph) | - | 1 1/4SM |
| | KCIR 211322Z AUTO 35003KT 1 1/4SM BR OVC003 M01/M03 A3019 RMK AO2 |
| 07:02 CST |  Overcast Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1022 mb (30.18 in) | NNW 7 kph (NNW 4.6 mph) | - | 1 1/2SM |
| | KCIR 211302Z AUTO 33004KT 1 1/2SM BR OVC003 M02/M03 A3018 RMK AO2 |
| 06:42 CST |  Overcast Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1022 mb (30.18 in) | NW 6 kph (NW 3.5 mph) | - | 2SM |
| | KCIR 211242Z AUTO 32003KT 2SM BR OVC003 M01/M03 A3017 RMK AO2 |
| 06:22 CST |  Overcast Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1022 mb (30.18 in) | Calm | - | 1 3/4SM |
| | KCIR 211222Z AUTO 00000KT 1 3/4SM BR OVC003 M01/M03 A3017 RMK AO2 |
| 06:02 CST |  Overcast Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1022 mb (30.18 in) | SSW 6 kph (SSW 3.5 mph) | - | 2SM |
| | KCIR 211202Z AUTO 26003KT 2SM BR OVC005 M01/M03 A3017 RMK AO2 |
| 05:42 CST |  Overcast Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1021 mb (30.15 in) | Calm | - | 2 1/2SM |
| | KCIR 211142Z AUTO 00000KT 2 1/2SM BR OVC005 M02/M03 A3016 RMK AO2 |
| 05:22 CST |  Overcast Fog And Mist | -3°C / 27°F | -4°C / 25°F | 93% | 1021 mb (30.15 in) | Calm | - | 2 1/2SM |
| | KCIR 211122Z AUTO 00000KT 2 1/2SM BR OVC005 M03/M04 A3016 RMK AO2 |
| 05:02 CST |  Overcast Fog And Mist | -3°C / 27°F | -5°C / 23°F | 86% | 1021 mb (30.15 in) | Calm | - | 2SM |
| | KCIR 211102Z AUTO 00000KT 2SM BR OVC005 M03/M05 A3016 RMK AO2 |
| 04:42 CST |  Overcast Fog And Mist | -3°C / 27°F | -5°C / 23°F | 86% | 1021 mb (30.15 in) | Calm | - | 2SM |
| | KCIR 211042Z AUTO 00000KT 2SM BR OVC007 M03/M05 A3015 RMK AO2 |
| 04:22 CST |  Fog And Mist | -2°C / 28°F | -4°C / 25°F | 86% | 1021 mb (30.15 in) | Calm | - | 3SM |
| | KCIR 211022Z AUTO 00000KT 3SM BR M02/M04 A3015 RMK AO2 SKY OBSCURED |
| 04:02 CST |  Fog And Mist | -2°C / 28°F | -4°C / 25°F | 86% | 1021 mb (30.15 in) | Calm | - | 2 1/2SM |
| | KCIR 211002Z AUTO 00000KT 2 1/2SM BR M02/M04 A3015 RMK AO2 SKY OBSCURED |
| 03:42 CST |  Fog And Mist | -2°C / 28°F | -4°C / 25°F | 86% | 1021 mb (30.15 in) | Calm | - | 3SM |
| | KCIR 210942Z AUTO 00000KT 3SM BR M02/M04 A3015 RMK AO2 SKY OBSCURED |
| 03:22 CST |  Fog And Mist | -2°C / 28°F | -4°C / 25°F | 86% | 1021 mb (30.15 in) | Calm | - | 3SM |
| | KCIR 210922Z AUTO 00000KT 3SM BR M02/M04 A3015 RMK AO2 SKY OBSCURED |
| 03:02 CST |  Clear Fog And Mist | -2°C / 28°F | -4°C / 25°F | 86% | 1021 mb (30.15 in) | Calm | - | 4SM |
| | KCIR 210902Z AUTO 00000KT 4SM BR CLR M02/M04 A3015 RMK AO2 |
| 02:42 CST |  Clear Fog And Mist | -2°C / 28°F | -4°C / 25°F | 86% | 1021 mb (30.15 in) | Calm | - | 4SM |
| | KCIR 210842Z AUTO 00000KT 4SM BR CLR M02/M04 A3015 RMK AO2 |
| 02:22 CST |  Clear Fog And Mist | -2°C / 28°F | -4°C / 25°F | 86% | 1021 mb (30.15 in) | S 6 kph (S 3.5 mph) | - | 4SM |
| | KCIR 210822Z AUTO 17003KT 4SM BR CLR M02/M04 A3015 RMK AO2 |
| 02:02 CST |  Clear Fog And Mist | -2°C / 28°F | -4°C / 25°F | 86% | 1021 mb (30.15 in) | S 6 kph (S 3.5 mph) | - | 4SM |
| | KCIR 210802Z AUTO 19003KT 4SM BR CLR M02/M04 A3015 RMK AO2 |
| 01:42 CST |  Clear Fog And Mist | -2°C / 28°F | -4°C / 25°F | 86% | 1021 mb (30.15 in) | Calm | - | 4SM |
| | KCIR 210742Z AUTO 00000KT 4SM BR CLR M02/M04 A3015 RMK AO2 |
| 01:22 CST |  Clear Fog And Mist | -2°C / 28°F | -4°C / 25°F | 86% | 1021 mb (30.15 in) | S 6 kph (S 3.5 mph) | - | 4SM |
| | KCIR 210722Z AUTO 17003KT 4SM BR CLR M02/M04 A3015 RMK AO2 |
| 01:02 CST |  Clear Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1021 mb (30.15 in) | Calm | - | 4SM |
| | KCIR 210702Z AUTO 4SM BR CLR M01/M03 A3015 RMK AO2 |
| 00:42 CST |  Clear Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1021 mb (30.15 in) | S 7 kph (S 4.6 mph) | - | 5SM |
| | KCIR 210642Z AUTO 17004KT 5SM BR CLR M01/M03 A3015 RMK AO2 |
| 00:22 CST |  Clear Fog And Mist | -1°C / 30°F | -3°C / 27°F | 86% | 1021 mb (30.15 in) | S 7 kph (S 4.6 mph) | - | 5SM |
| | KCIR 210622Z AUTO 17004KT 5SM BR CLR M01/M03 A3015 RMK AO2 |
| 00:02 CST |  Clear Fog And Mist | -2°C / 28°F | -4°C / 25°F | 86% | 1021 mb (30.15 in) | S 6 kph (S 3.5 mph) | - | 5SM |
| | KCIR 210602Z AUTO 17003KT 5SM BR CLR M02/M04 A3015 RMK AO2 |