ASUS43 KLOT 231708 RWRIL ILLINOIS REGIONAL WEATHER ROUNDUP NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 1200 PM CDT SUN AUG 23 2026 NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY. * THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT REPORT WEATHER SUCH AS PRECIPITATION OR FOG. ILZ001-002-007-009-015-016-024-231800- NORTHWEST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS MOLINE SUNNY 74 55 51 N8 30.10S TC 23 STERLING* SUNNY 75 52 44 NW12 30.10F TC 24 SAVANNA* MOSUNNY 73 53 50 NW8 30.11S TC 23 $$ ILZ003-004-008-010-011-017-018-231800- NORTH CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ROCKFORD MOSUNNY 74 49 41 N10 30.08F TC 23 FREEPORT* SUNNY 73 54 50 N5 30.11F TC 23 ROCHELLE* SUNNY 72 52 48 N9 30.09S TC 22 DE KALB* SUNNY 71 55 55 N8 30.08F TC 22 PERU* SUNNY 73 57 56 N5 30.09R TC 23 $$ ILZ005-006-012>014-019>023-231800- NORTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHICAGO-OHARE MOSUNNY 73 50 44 N10 30.03F TC 23 CHICAGO-MIDWAY MOSUNNY 74 48 39 N13 30.04S TC 23 AURORA SUNNY 72 54 53 N14 30.06F HAZE TC 22 JOLIET* SUNNY 76 53 45 NW6G17 30.06S TC 25 WAUKEGAN NOT AVBL DUPAGE AIRPORT NOT AVBL KANKAKEE* SUNNY 75 58 53 NW12 30.06S TC 24 WHEELING MOSUNNY 72 51 47 NW12 30.06F TC 22 LANSING* PTSUNNY 74 53 48 N6 30.04F TC 23 NORTHERLY ISL* N/A 73 54 51 N10 N/A TC 23 $$ LMZ740>746-231800- SOUTHERN LAKE MICHIGAN STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE AIR SEA DIR/SP/G HT/PER (F) (DEG/KT/KT) (MB) (MI) (FT/S) WINTHROP HARBOR 70 73 330/ 10/ 14 1020.1 3/ 5 WAUKEGAN HARBOR 71 74 290/ 10/ 16 1017.4 2/ 6 WILMETTE BUOY 69 30/ 10/ 14 1020.2S 3/ 5 CHICAGO BUOY 70 73 1016.2 3/ 5 NORTHERLY ISL 72 30/ 11/ 13 N/A CALUMET HARBOR 71 350/ 10/ 14 1017.4 MICH CITY BUOY 70 74 330/ 12/ 17 N/A 3/ 5 ST. JOSEPH BUOY 70 73 330/ 14/ 17 1017.4F 4/ 5 $$ ILZ025>027-034>036-040-047-049-050-058-095>099-231800- WEST-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS QUINCY SUNNY 75 57 53 NW9 30.13R TC 24 GALESBURG* SUNNY 73 60 63 N7 30.12F TC 23 MACOMB* SUNNY 74 61 63 NW9 30.14R TC 24 JACKSONVILLE* SUNNY 76 58 53 NW10 30.11S TC 24 $$ ILZ028>032-037-038-041>044-048-051>054-059>061-231800- CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS PONTIAC MOSUNNY 75 61 61 NW3 30.07F TC 24 BLOOMINGTON SUNNY 76 59 55 NW9 30.09F TC 24 DECATUR SUNNY 76 56 49 W14G20 30.08S TC 24 PEORIA SUNNY 73 61 64 VRB7 30.09S TC 23 LACON* SUNNY 73 57 57 N7 30.08S TC 23 LINCOLN* SUNNY 76 61 58 NW6 30.09S TC 25 SPRINGFIELD SUNNY 77 53 43 NW730.09S TC 25 TAYLORVILLE NOT AVBL $$ ILZ033-039-045-046-055>057-062-063-231800- EAST-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHAMPAIGN SUNNY 74 62 66 W9 30.06F TC 23 RANTOUL* SUNNY 74 61 62 NW8 30.07S TC 23 MATTOON SUNNY 76 57 51 W9 30.06F TC 24 PARIS* MOSUNNY 78 58 50 W7 30.06F TC 25 $$ ILZ079-100>102-231800- SOUTHWEST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ALTON SUNNY 79 57 47 NW7 30.11S HX 80 TC 26 CAHOKIA* MOSUNNY 80 58 46 NW9 30.10R HX 80 TC 27 $$ ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-231800- SOUTH-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CARBONDALE SUNNY 81 57 44 NW9 30.09S HX 81 TC 27 CAIRO* MOSUNNY 82 66 56 CALM 30.08F HX 84 TC 28 EFFINGHAM* MOSUNNY 78 59 52 W8 30.09F TC 26 MT. VERNON SUNNY 80 56 43 VRB5 30.08F HX 80 TC 27 CENTRALIA* SUNNY 80 58 46 NW5 30.09S HX 80 TC 27 SALEM* SUNNY 80 61 52 MISG 30.09S HX 81 TC 27 METROPOLIS* SUNNY 83 59 43 NW5 30.08S HX 83 TC 28 $$ ILZ067-068-072-073-078-083-087-091-231800- SOUTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS LAWRENCEVILLE SUNNY 81 52 36 W8 30.06S HX 80 TC 27 FLORA* SUNNY 79 59 50 W9 30.08S HX 80 TC 26 FAIRFIELD* SUNNY 79 55 44 W5 30.07F TC 26 HARRISBURG* SUNNY 82 58 44 NW7 30.08S HX 82 TC 28 ROBINSON* MOSUNNY 79 57 47 VRB6G16 30.05F HX 80 TC 26 $$ ABBREVIATIONS USED IN REMARKS TC - TEMPERATURE IN CELSIUS WCI - WIND CHILL INDEX HX - HEAT INDEX VSB - VISIBILITY $$