077
ASUS43 KLOT 210856
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 AM CDT THU MAY 21 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.
ILZ001-002-007-009-015-016-024-211000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 51 35 54 NE10 30.27S TC 11
ILZ003-004-008-010-011-017-018-211000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 46 32 58 N8 30.32R TC 8
PERU* PTCLDY 46 36 66 N9 30.27R TC 8
ILZ005-006-012>014-019>023-211000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 50 34 54 N16 30.29R TC 10
CHICAGO-MIDWAY NOT AVBL
AURORA MOCLDY 47 37 68 NE15 30.26R TC 8
WAUKEGAN CLEAR 46 35 65 NE12G21 30.31R TC 8
DUPAGE AIRPORT MOCLDY 48 34 58 NE13 30.27R TC 9
WHEELING MOCLDY 49 35 58 NE10G21 30.31R TC 9
MORRIS* PTCLDY 45 37 76 CALM 30.25R TC 7
NORTHERLY ISL* N/A 51 39 63 NE16 N/A TC 11
LMZ740>746-211000-
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 48 1023.8R 3/ 4
WAUKEGAN HARBOR 48 49 350/ 16/ 19 1024.9R 3/ 5
WILMETTE BUOY 50 80/ 19/ 25 1026.1R 3/ 5
CHICAGO BUOY 52 54 50/ 19/ 25 1023.6R 4/ 5
HARRISON CRIB 51 50/ 23/ 24 N/A
NORTHERLY ISL 51 40/ 16/ 19 N/A
CALUMET HARBOR 30/ 10/ 15 1025.1
BURNS HARBOR 53 60/ 9/ 11 1025.1R
MICHIGAN CITY 51 60/ 10/ 11 1024.3R
ST. JOSEPH BUOY 51 50/ 12/ 16 1025.7R 3/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-211000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-211000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD CLOUDY 50 39 66 NE12 30.21R TC 10
TAYLORVILLE CLEAR 48 43 81 N7 30.20R TC 9
ILZ033-039-045-046-055>057-062-063-211000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-211000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-211000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
ILZ067-068-072-073-078-083-087-091-211000-
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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