400
ASUS43 KLOT 200856
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 AM CDT THU AUG 20 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.
ILZ001-002-007-009-015-016-024-201000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 67 65 93 NE7 29.97R TC 19
ILZ003-004-008-010-011-017-018-201000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 61 57 87 N5 30.03R TC 16
ILZ005-006-012>014-019>023-201000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 65 57 75 N3 29.98R TC 18
CHICAGO-MIDWAY NOT AVBL
AURORA MOCLDY 62 59 90 N3 29.99R TC 17
WAUKEGAN PTCLDY 58 56 93 CALM 29.99R TC 14
DUPAGE AIRPORT PTCLDY 62 58 86 N3 29.99R TC 17
WHEELING MOCLDY 63 59 87 N5 30.00R TC 17
NORTHERLY ISL* N/A 71 55 56 N8 N/A TC 22
LMZ740>746-201000-
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 71 74 360/ 8/ 12 1015.1R 2/ 4
WAUKEGAN HARBOR 69 74 300/ 8/ 10 1015.9R 1/ 4
WILMETTE BUOY 73 60/ 12/ 16 1017.9R 2/ 3
CHICAGO BUOY 74 73 1013.9R 3/ 4
NORTHERLY ISL 71 40/ 10/ 12 N/A
CALUMET HARBOR 10/ 7/ 12 1014.9
MICH CITY BUOY 73 74 30/ 12/ 14 N/A 2/ 4
ST. JOSEPH BUOY 70 74 80/ 6/ 8 1015.5R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-201000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-201000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD LGT RAIN 66 66 100 CALM 29.95R TC 19
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-201000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-201000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
ILZ067-068-072-073-078-083-087-091-201000-
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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