100
ASUS43 KLOT 211256
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 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.
ILZ001-002-007-009-015-016-024-211400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 50 35 56 NE15 30.27S TC 10
ILZ003-004-008-010-011-017-018-211400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD NOT AVBL
PERU* MOSUNNY 54 37 54 NE14 30.27S TC 12
ILZ005-006-012>014-019>023-211400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 49 38 65 NE15 30.31R TC 9
CHICAGO-MIDWAY NOT AVBL
AURORA SUNNY 51 39 63 E15 30.30R TC 11
WAUKEGAN MOSUNNY 47 36 65 NE10 30.34R TC 8
DUPAGE AIRPORT SUNNY 50 39 66 NE10 30.30R TC 10
WHEELING MOSUNNY 48 37 65 NE10G22 30.34R TC 9
MORRIS* CLOUDY 54 39 58 E7 30.28S TC 12
ROMEOVILLE* CLOUDY 52 43 71 NE15 30.30S TC 11
NORTHERLY ISL* N/A 49 42 77 NE8 N/A TC 9
LMZ740>746-211400-
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 1024.2R 3/ 5
WAUKEGAN HARBOR 46 48 360/ 16/ 21 1025.4R 3/ 5
WILMETTE BUOY 47 80/ 17/ 23 1027.3R 3/ 4
CHICAGO BUOY 51 54 70/ 16/ 19 1025.2R 3/ 4
HARRISON CRIB 49 40/ 16/ 18 N/A
NORTHERLY ISL 49 30/ 6/ 14 N/A
CALUMET HARBOR 51 40/ 8/ 11 1025.9
BURNS HARBOR 52 60/ 4/ 6 1026.4R
MICHIGAN CITY 52 70/ 6/ 8 1025.2F
ST. JOSEPH BUOY 51 80/ 10/ 12 1026.7F 2/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-211400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-211400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD PTSUNNY 55 42 61 NE9 30.22S TC 13
TAYLORVILLE SUNNY 54 45 71 NE9 30.20F TC 12
ILZ033-039-045-046-055>057-062-063-211400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 54 46 74 NE14 30.22S TC 12
ILZ079-100>102-211400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-211400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 59 54 82 N8 30.13S TC 15
MARION CLOUDY 61 57 88 N9 30.13S TC 16
ILZ067-068-072-073-078-083-087-091-211400-
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
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page