664
ASUS43 KLOT 190203
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 PM CDT TUE AUG 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.
ILZ001-002-007-009-015-016-024-190300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 74 69 85 W5 29.92R TC 23
STERLING* CLOUDY 74 72 93 SW10 29.92S TC 23
SAVANNA* MOCLDY 69 66 91 S3 29.91F TC 21
ILZ003-004-008-010-011-017-018-190300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD LGT RAIN 70 64 81 N10 29.95R TC 21
FREEPORT* CLOUDY 70 67 90 CALM 29.95R TC 21
ILZ005-006-012>014-019>023-190300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 76 67 73 SW6 29.91R TC 24
CHICAGO-MIDWAY MOCLDY 76 67 73 SW9 29.92R TC 24
AURORA MOCLDY 73 69 87 CALM 29.92R TC 23
WAUKEGAN HVY RAIN 64 63 96 SW10 29.94R VSB 1 TC 18
DUPAGE AIRPORT CLOUDY 74 68 81 SW6 29.92R TC 23
WHEELING CLOUDY 76 68 76 W3 29.94R TC 24
LANSING* CLOUDY 72 67 86 CALM 29.93S TC 22
NORTHERLY ISL* N/A 76 65 68 S6 N/A TC 24
LMZ740>746-190300-
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 65 74 N/A 1/ 2
WAUKEGAN HARBOR 68 74 320/ 17/ 23 1014.8R 1
WILMETTE BUOY 76 260/ 6/ 8 1016.0S 1
CHICAGO BUOY 76 73 1011.9S 1
NORTHERLY ISL 76 220/ 5/ 10 N/A
CALUMET HARBOR 76 200/ 7/ 10 1013.1
MICH CITY BUOY 74 74 190/ 8/ 10 N/A 1/ 3
ST. JOSEPH BUOY 75 74 200/ 10/ 12 1013.7F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-190300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 75 69 81 CALM 29.95R TC 24
ILZ028>032-037-038-041>044-048-051>054-059>061-190300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 73 70 90 SW6 29.97R TC 23
DECATUR CLEAR 74 68 81 SW6 29.96R TC 23
PEORIA CLEAR 75 69 81 SW7 29.95R TC 24
SPRINGFIELD CLEAR 73 69 87 SW3 29.95S TC 23
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-190300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 71 69 93 S5 29.96S TC 22
MATTOON CLEAR 74 69 85 S3 29.96S TC 23
ILZ079-100>102-190300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 73 70 88 SE6 29.95F TC 23
BELLEVILLE PTCLDY 77 74 91 CALM 29.93F TC 25
CAHOKIA* CLEAR 77 71 82 S5 29.94S TC 25
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-190300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
MT. VERNON CLEAR 72 69 90 CALM 29.97R TC 22
CENTRALIA* CLEAR 72 71 94 CALM 29.97S TC 22
ILZ067-068-072-073-078-083-087-091-190300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 75 67 76 CALM 29.96S TC 24
FAIRFIELD* CLEAR 73 67 84 CALM 29.97R TC 23
HARRISBURG* CLEAR 74 71 87 CALM 29.98R TC 24
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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