ASUS43 KLOT 181656 RWRIL ILLINOIS REGIONAL WEATHER ROUNDUP NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 1200 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. ILZ001-002-007-009-015-016-024-181800- NORTHWEST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS MOLINE CLOUDY 74 63 68 SW15 29.81R TC 23 $$ ILZ003-004-008-010-011-017-018-181800- NORTH CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ROCKFORD NOT AVBL PERU* PTSUNNY 73 66 78 S14 29.81R TC 23 $$ ILZ005-006-012>014-019>023-181800- NORTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHICAGO-OHARE CLOUDY 70 68 93 SE8 29.79F TC 21 CHICAGO-MIDWAY LGT RAIN 70 67 90 S10 29.82F TC 21 AURORA CLOUDY 69 66 90 CALM 29.82R TC 21 WAUKEGAN RAIN 70 68 93 S10 29.77F FOG TC 21 DUPAGE AIRPORT PTSUNNY 70 68 93 CALM 29.80R TC 21 WHEELING MOSUNNY 68 66 93 VRB3 29.80F TC 20 MORRIS* MOSUNNY 70 66 88 SE14 29.79F TC 21 ROMEOVILLE* PTSUNNY 70 70 100 SE14 29.81F TC 21 NORTHERLY ISL* N/A 65 63 93 SE5 N/A TC 18 $$ LMZ740>746-181800- SOUTHERN LAKE MICHIGAN STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE AIR SEA DIR/SP/G HT/PER (F) (DEG/KT/KT) (MB) (MI) (FT/S) WINTHROP HARBOR 49 1015.3F 2/ 4 WAUKEGAN HARBOR 61 50 160/ 14/ 17 1010.3F 2/ 3 WILMETTE BUOY 65 220/ 12/ 21 1012.4R 1/ 3 CHICAGO BUOY 62 54 1009.7R 1/ 2 HARRISON CRIB 66 210/ 11/ 12 N/A NORTHERLY ISL 66 290/ 10/ 16 N/A CALUMET HARBOR 230/ 17/ 30 1011.9 BURNS HARBOR 74 260/ 25/ 29 1012.9R MICHIGAN CITY 81 190/ 23/ 29 1009.1F ST. JOSEPH BUOY 67 190/ 12/ 14 1012.1F 2/ 3 $$ ILZ025>027-034>036-040-047-049-050-058-095>099-181800- WEST-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS $$ ILZ028>032-037-038-041>044-048-051>054-059>061-181800- CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS PEORIA NOT AVBL SPRINGFIELD LGT RAIN 67 65 93 S12 29.96R TC 19 TAYLORVILLE CLOUDY 66 64 94 SE5 30.00R TC 19 $$ ILZ033-039-045-046-055>057-062-063-181800- EAST-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS MATTOON RAIN 67 65 93 N7 30.01 FOG TC 19 $$ ILZ079-100>102-181800- SOUTHWEST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ALTON TSTM 66 64 94 E3 29.98S TC 19 CAHOKIA* CLOUDY 67 65 93 NE7G17 29.99S THUNDER TC 19 $$ ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181800- SOUTH-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CARBONDALE NOT AVBL MARION CLOUDY 81 72 74 SW12 30.01R HX 84 TC 27 $$ ILZ067-068-072-073-078-083-087-091-181800- SOUTHEAST ILLINOIS CITYSKY/WX TMP DP RH WIND PRES REMARKS $$ ABBREVIATIONS USED IN REMARKS TC - TEMPERATURE IN CELSIUS WCI - WIND CHILL INDEX HX - HEAT INDEX VSB - VISIBILITY $$