ASUS43 KLOT 180806 RWRIL ILLINOIS REGIONAL WEATHER ROUNDUP NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 300 AM 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. ILZ001-002-007-009-015-016-024-180900- NORTHWEST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS MOLINE TSTM 74 66 76 S14G26 29.73F TC 23 STERLING* MOCLDY 74 64 71 SE8 29.79F TC 23 SAVANNA* CLOUDY 73 64 73 S9 29.75F TC 23 $$ ILZ003-004-008-010-011-017-018-180900- NORTH CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ROCKFORD PTCLDY 73 63 70 S16G23 29.80F TC 23 FREEPORT* MOCLDY 74 67 77 S15 29.79F TC 23 ROCHELLE* PTCLDY 73 60 64 S18 29.81F TC 23 DE KALB* MOCLDY 70 62 75 S15 29.84F TC 21 PERU* PTCLDY 73 61 64 S13G20 29.83F TC 23 $$ ILZ005-006-012>014-019>023-180900- NORTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHICAGO-OHARE MOCLDY 76 58 53 S15G22 29.83F TC 24 CHICAGO-MIDWAY PTCLDY 75 56 51 S20G28 29.84F TC 24 AURORA MOCLDY 73 60 63 S13 29.83F TC 23 JOLIET* PTCLDY 75 58 55 S12G18 29.86F TC 24 WAUKEGAN PTCLDY 75 60 59 SW16 29.81F TC 24 DUPAGE AIRPORT PTCLDY 73 59 61 S14G22 29.83F TC 23 KANKAKEE* PTCLDY 72 58 62 S9 29.90F TC 22 WHEELING PTCLDY 76 59 55 S15G26 29.84F TC 24 MORRIS* PTCLDY 72 57 60 S12 29.84F TC 22 ROMEOVILLE* PTCLDY 73 59 60 S16 29.86F TC 23 LANSING* PTCLDY 72 57 59 S12 29.88F TC 22 NORTHERLY ISL* N/A 76 54 46 S20 N/A TC 24 $$ LMZ740>746-180900- SOUTHERN LAKE MICHIGAN STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE AIR SEA DIR/SP/G HT/PER (F) (DEG/KT/KT) (MB) (MI) (FT/S) WINTHROP HARBOR 49 1010.8R 2/ 4 WAUKEGAN HARBOR 63 51 170/ 8/ 12 1010.6 1/ 3 HARRISON CRIB 76 210/ 22/ 25 N/A NORTHERLY ISL 76 190/ 14/ 19 N/A CALUMET HARBOR 76 180/ 9/ 15 1011.6 BURNS HARBOR 74 180/ 8/ 11 1012.9F MICHIGAN CITY 73 160/ 10/ 13 1010.9F ST. JOSEPH BUOY 63 180/ 10/ 12 1013.5F 2/ 4 $$ ILZ025>027-034>036-040-047-049-050-058-095>099-180900- WEST-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS QUINCY PTCLDY 75 67 76 S17G24 29.78F TC 24 GALESBURG* CLOUDY 74 64 73 S9 29.80F TC 23 MACOMB* CLOUDY 76 67 74 S14 29.82S TC 25 JACKSONVILLE* PTCLDY 74 65 72 S15 29.83F TC 23 PITTSFIELD* CLOUDY 76 66 71 S12G23 29.83S TC 25 $$ ILZ028>032-037-038-041>044-048-051>054-059>061-180900- CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS PONTIAC PTCLDY 71 59 65 MISG 29.86F TC 22 BLOOMINGTON CLEAR 71 60 68 S21 29.87F TC 22 DECATUR N/A N/A N/A N/A MISG 29.90F PEORIA PTCLDY 74 62 66 S20G26 29.82F TC 23 LACON*PTCLDY 75 61 61 SW14G21 29.81S TC 24 LINCOLN* CLEAR 74 62 67 S15 29.86F TC 23 SPRINGFIELD CLEAR 74 62 66 S18G30 29.85F TC 23 TAYLORVILLE CLEAR 72 61 68 S14 29.89F TC 22 $$ ILZ033-039-045-046-055>057-062-063-180900- EAST-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHAMPAIGN CLEAR 69 60 73 S14 29.92F TC 21 DANVILLE* CLEAR 72 59 65 S13G18 29.95S TC 22 RANTOUL* CLEAR 70 59 67 S15 29.91F TC 21 MATTOON CLOUDY 72 60 66 S9 29.94S TC 22 PARIS* CLEAR 68 59 73 S9 29.97S TC 20 $$ ILZ079-100>102-180900- SOUTHWEST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ALTON CLEAR 75 64 69 S13 29.89S TC 24 CAHOKIA* CLEAR 75 65 70 S8 29.88F TC 24 $$ ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-180900- SOUTH-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CARBONDALE MOCLDY 76 62 62 S12 29.94S TC 24 CAIRO* PTCLDY 78 64 61 S12 29.98S HX 80 TC 26 EFFINGHAM* MOCLDY 73 60 63 SE9 29.97R TC 23 MARION CLEAR 74 59 59 S13 29.97S TC 24 MT. VERNON CLEAR 73 60 63 S5 29.96S TC 23 CENTRALIA* PTCLDY 74 61 61 S10 29.94S TC 24 SALEM* CLEAR 74 62 64 S6 29.95R TC 24 METROPOLIS* CLOUDY 76 61 59 S8 29.99S TC 25 $$ ILZ067-068-072-073-078-083-087-091-180900- SOUTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS LAWRENCEVILLE PTCLDY 68 63 84 S5 29.98S TC 20 FLORA* MOCLDY 70 61 73 S8 29.97R TC 21 FAIRFIELD* MOCLDY 73 59 61 S7 29.97S TC 23 HARRISBURG* CLEAR 76 60 59 S9 29.98S TC 24 ROBINSON* PTCLDY 70 63 78 S7 29.97S TC 21 $$ ABBREVIATIONS USED IN REMARKS TC - TEMPERATURE IN CELSIUS WCI - WIND CHILL INDEX HX - HEAT INDEX VSB - VISIBILITY $$