409
ASUS43 KLOT 211356
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 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.
ILZ001-002-007-009-015-016-024-211500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 53 38 56 E15G22 30.24F TC 12
ILZ003-004-008-010-011-017-018-211500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD NOT AVBL
PERU* PTSUNNY 55 41 58 E14 30.28S TC 13
ILZ005-006-012>014-019>023-211500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 50 39 66 NE15 30.31S TC 10
CHICAGO-MIDWAY NOT AVBL
AURORA PTSUNNY 53 41 63 NE13 30.30R TC 12
WAUKEGAN MOSUNNY 47 37 68 NE14G22 30.33F TC 8
DUPAGE AIRPORT CLOUDY 52 41 66 NE15 30.30S TC 11
WHEELING CLOUDY 49 38 65 NE10 30.34F TC 9
MORRIS* CLOUDY 55 43 62 E7 30.28S TC 13
ROMEOVILLE* PTSUNNY 55 45 67 NE13 30.29F TC 13
NORTHERLY ISL* N/A 49 41 74 N10 N/A TC 9
LMZ740>746-211500-
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 1024.5S 3/ 5
WAUKEGAN HARBOR 46 48 350/ 14/ 19 1025.7S 3/ 5
WILMETTE BUOY 47 80/ 17/ 21 1027.2R 3/ 5
CHICAGO BUOY 50 54 40/ 14/ 17 1025.3R 3/ 4
HARRISON CRIB 48 40/ 15/ 16 N/A
NORTHERLY ISL 49 30/ 7/ 11 N/A
CALUMET HARBOR 20/ 7/ 10 1026.3
BURNS HARBOR 54 70/ 4/ 7 1026.4S
MICHIGAN CITY 54 90/ 8/ 10 1025.1F
ST. JOSEPH BUOY 54 100/ 10/ 14 1026.9R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-211500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-211500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD MOSUNNY 58 46 64 NE10 30.20F TC 14
TAYLORVILLE SUNNY 57 48 72 NE13G18 30.18F TC 14
ILZ033-039-045-046-055>057-062-063-211500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-211500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 59 50 72 NE12 30.17S TC 15
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-211500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 63 54 72 NE8 30.11F TC 17
MARION PTSUNNY 61 55 82 NE8 30.11F TC 16
ILZ067-068-072-073-078-083-087-091-211500-
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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