ASUS43 KLOT 181856 RWRIL ILLINOIS REGIONAL WEATHER ROUNDUP NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 200 PM CDT MON MAY 18 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. ILZ001-002-007-009-015-016-024-182000- NORTHWEST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS MOLINE NOT AVBL $$ ILZ003-004-008-010-011-017-018-182000- NORTH CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ROCKFORD NOT AVBL PERU* CLOUDY 75 64 69 SW15G21 29.86R TC 24 $$ ILZ005-006-012>014-019>023-182000- NORTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHICAGO-OHARE PTSUNNY 78 66 66 S13 29.83R HX 80 TC 26 CHICAGO-MIDWAY NOT AVBL AURORA NOT AVBL WAUKEGAN PTSUNNY 78 68 71 S16 29.81R HX 80 TC 26 DUPAGE AIRPORT NOT AVBL WHEELING NOT AVBL MORRIS* CLOUDY 73 64 73 S15 29.86R TC 23 ROMEOVILLE* MOSUNNY 77 66 69 SW17 29.87R TC 25 NORTHERLY ISL* N/A 70 68 93 S12 N/A TC 21 $$ LMZ740>746-182000- SOUTHERN LAKE MICHIGAN STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE AIR SEA DIR/SP/G HT/PER (F) (DEG/KT/KT) (MB) (MI) (FT/S) WINTHROP HARBOR 50 1017.0R 2/ 3 WAUKEGAN HARBOR 58 52 130/ 10/ 14 1010.7R 1/ 3 WILMETTE BUOY 60 180/ 12/ 17 1011.7R 1/ 3 CHICAGO BUOY 60 55 1009.5R 1 HARRISON CRIB 64 160/ 15/ 17 N/A NORTHERLY ISL 66 140/ 2/ 9 N/A CALUMET HARBOR 140/ 12/ 17 1010.4 BURNS HARBOR 71 180/ 7/ 10 1011.9F MICHIGAN CITY 71 180/ 11/ 13 1009.4F ST. JOSEPH BUOY 59 150/ 8/ 10 1011.5F 2/ 4 $$ ILZ025>027-034>036-040-047-049-050-058-095>099-182000- WEST-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS $$ ILZ028>032-037-038-041>044-048-051>054-059>061-182000- CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS PEORIA NOT AVBL SPRINGFIELD NOT AVBL TAYLORVILLE CLOUDY 66 64 94 SW9 30.02R TC 19 $$ ILZ033-039-045-046-055>057-062-063-182000- EAST-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS $$ ILZ079-100>102-182000- SOUTHWEST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ALTON TSTM 66 64 94 N6 30.02F TC 19 CAHOKIA* TSTM 67 65 93 N10G20 30.00F TC 19 $$ ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-182000- SOUTH-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CARBONDALE LGT RAIN 75 72 88 SW16G22 30.02R TC 24 MARION PTSUNNY 73 70 88 S9G24 30.01S TC 23 MT. VERNON CLOUDY 81 72 74 SW17G29 29.99F HX 84 TC 27 $$ ILZ067-068-072-073-078-083-087-091-182000- SOUTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS $$ ABBREVIATIONS USED IN REMARKS TC - TEMPERATURE IN CELSIUS WCI - WIND CHILL INDEX HX - HEAT INDEX VSB - VISIBILITY $$