100
ASUS43 KLOT 210756
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 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.
ILZ001-002-007-009-015-016-024-210900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 51 37 58 NE5 30.27R TC 11
ILZ003-004-008-010-011-017-018-210900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 48 32 53 VRB7 30.31R TC 9
PERU* CLEAR 46 34 61 NE9 30.25F TC 8
ILZ005-006-012>014-019>023-210900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 50 33 52 NE10 30.27S TC 10
CHICAGO-MIDWAY NOT AVBL
AURORA MOCLDY 45 37 73 NE9 30.25F TC 7
WAUKEGAN MOCLDY 47 34 60 NE12 30.30R TC 8
DUPAGE AIRPORT MOCLDY 46 38 73 N8 30.26S TC 8
WHEELING CLOUDY 49 35 58 NE9 30.30R TC 9
MORRIS* CLEAR 46 36 66 CALM 30.25S TC 8
NORTHERLY ISL* N/A 50 38 63 NE17 N/A TC 10
LMZ740>746-210900-
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/ 5
WAUKEGAN HARBOR 49 50 340/ 14/ 17 1024.6R 3/ 5
WILMETTE BUOY 50 90/ 19/ 25 1025.4F 4/ 5
CHICAGO BUOY 52 54 40/ 19/ 23 1023.4S 4/ 5
HARRISON CRIB 51 50/ 20/ 22 N/A
NORTHERLY ISL 51 30/ 16/ 20 N/A
CALUMET HARBOR 20/ 12/ 17 1024.7
BURNS HARBOR 53 50/ 10/ 12 1024.4F
MICHIGAN CITY 51 60/ 12/ 14 1023.7R
ST. JOSEPH BUOY 52 60/ 12/ 16 1025.2S 3/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-210900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-210900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD LGT RAIN 50 40 68 N7 30.20R TC 10
TAYLORVILLE CLEAR 52 39 62 NE9 30.18F TC 11
ILZ033-039-045-046-055>057-062-063-210900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-210900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
ILZ067-068-072-073-078-083-087-091-210900-
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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