622
ASUS43 KLOT 190403
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM CDT MON MAY 18 2026
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR S TO VISIBILITY.
* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
REPORT WEATHER SUCH AS PRECIPITATION OR FOG.
ILZ001-002-007-009-015-016-024-190500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 68 61 78 S12 29.85F TC 20
STERLING* MOCLDY 68 64 87 SE5 29.91R TC 20
ILZ003-004-008-010-011-017-018-190500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 69 63 81 S10 29.91R TC 21
ILZ005-006-012>014-019>023-190500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 67 62 84 S8 29.90R TC 19
CHICAGO-MIDWAY CLOUDY 68 62 81 S13 29.91R TC 20
AURORA PTCLDY 66 63 90 S12 29.93R TC 19
WAUKEGAN PTCLDY 68 63 84 SW12 29.88R TC 20
DUPAGE AIRPORT PTCLDY 66 63 90 SW10 29.93R TC 19
WHEELING PTCLDY 68 63 84 SW8 29.92R TC 20
NORTHERLY ISL* N/A 67 60 78 S12 N/A TC 19
LMZ740>746-190500-
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 1005.6F 1/ 3
WAUKEGAN HARBOR 59 54 160/ 8/ 12 1012.8R 1/ 3
WILMETTE BUOY 61 170/ 10/ 14 1013.3F 1/ 3
CHICAGO BUOY 61 55 200/ 10/ 16 1011.5F 1/ 3
HARRISON CRIB 66 180/ 20/ 21 N/A
NORTHERLY ISL 68 180/ 8/ 18 N/A
CALUMET HARBOR 67 180/ 9/ 13 1012.7F
BURNS HARBOR 67 170/ 6/ 9 1013.9F
MICHIGAN CITY 68 150/ 11/ 14 1011.6F
ST. JOSEPH BUOY 60 170/ 10/ 12 1013.9F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-190500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 69 63 81 S20G30 29.88S TC 21
ILZ028>032-037-038-041>044-048-051>054-059>061-190500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTCLDY 63 61 93 S7 29.96R TC 17
DECATUR PTCLDY 62 59 90 MISG 29.97R TC 17
PEORIA NOT AVBL
SPRINGFIELD CLEAR 67 61 81 S13 29.94R TC 19
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-190500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 62 61 96 SE5 29.98R TC 17
MATTOON MOCLDY 64 61 90 MISG 30.00R TC 18
ILZ079-100>102-190500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* CLEAR 66 62 87 S9 29.99R TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-190500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
MT. VERNON MOCLDY 66 63 90 S3 30.03R TC 19
ILZ067-068-072-073-078-083-087-091-190500-
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
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