659
ASUS43 KLOT 211656
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 PM 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.
ILZ001-002-007-009-015-016-024-211800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 61 45 55 E9 30.25R TC 16
ILZ003-004-008-010-011-017-018-211800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD NOT AVBL
PERU* SUNNY 66 46 48 E17 30.24F TC 19
ILZ005-006-012>014-019>023-211800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 56 44 64 NE14 30.29S TC 13
CHICAGO-MIDWAY NOT AVBL
AURORA MOSUNNY 61 48 62 E16G30 30.27F TC 16
WAUKEGAN CLOUDY 48 37 65 NE12 30.32S TC 9
DUPAGE AIRPORT MOSUNNY 58 46 64 E12G17 30.28F TC 14
WHEELING CLOUDY 51 41 68 NE15 30.32S TC 11
MORRIS* MOSUNNY 64 46 52 E13G18 30.24F TC 18
ROMEOVILLE* MOSUNNY 61 48 63 NE13 30.27F TC 16
NORTHERLY ISL* N/A 53 45 74 N13 N/A TC 12
LMZ740>746-211800-
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 50 1023.2F 3/ 4
WAUKEGAN HARBOR 46 48 350/ 14/ 19 1025.2R 3/ 4
WILMETTE BUOY 47 60/ 16/ 19 1026.7R 3/ 5
CHICAGO BUOY 49 54 350/ 16/ 19 1024.6R 3/ 5
HARRISON CRIB 48 360/ 14/ 16 N/A
NORTHERLY ISL 53 350/ 11/ 12 N/A
CALUMET HARBOR 360/ 10/ 13 1025.5
BURNS HARBOR 54 20/ 7/ 8 1025.4F
MICHIGAN CITY 56 20/ 16/ 17 1023.9F
ST. JOSEPH BUOY 57 50/ 4/ 6 1026.0F 1/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-211800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-211800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD SUNNY 68 47 46 E18 30.17F TC 20
TAYLORVILLE SUNNY 66 52 59 NE12G17 30.18S TC 19
ILZ033-039-045-046-055>057-062-063-211800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-211800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTSUNNY 66 54 63 E9 30.15F TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-211800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 65 57 75 VRB7 30.12S TC 18
MARION CLOUDY 64 57 77 E7 30.12S TC 18
ILZ067-068-072-073-078-083-087-091-211800-
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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