640
ASUS43 KLOT 210356
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM CDT MON APR 20 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.
ILZ001-002-007-009-015-016-024-210500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 52 36 54 SE9 30.04F TC 11
ILZ003-004-008-010-011-017-018-210500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 48 30 49 S9 30.09F TC 9
ILZ005-006-012>014-019>023-210500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 51 27 39 S10G18 30.11F TC 11
CHICAGO-MIDWAY NOT AVBL
AURORA CLEAR 48 32 53 S10 30.11F TC 9
WAUKEGAN PTCLDY 45 38 76 SE6 30.10F TC 7
DUPAGE AIRPORT CLEAR 50 30 46 S10 30.11F TC 10
WHEELING PTCLDY 52 30 43 S12 30.12F TC 11
NORTHERLY ISL* N/A 51 29 42 S9 N/A TC 11
LMZ740>746-210500-
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 45 1018.2F 2/ 4
WAUKEGAN HARBOR 46 47 1019.7F 2/ 4
HARRISON CRIB 52 180/ 16/ 17 N/A
NORTHERLY ISL 51 180/ 4/ 11 N/A
CALUMET HARBOR 170/ 7/ 10 1020.7
BURNS HARBOR 49 170/ 6/ 9 1022.0S
MICHIGAN CITY 49 150/ 9/ 12 1021.1F
ST. JOSEPH BUOY 49 160/ 12/ 14 1022.4F 1/ 2
ILZ025>027-034>036-040-047-049-050-058-095>099-210500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-210500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD CLEAR 54 40 59 S13 30.13F TC 12
TAYLORVILLE CLEAR 54 41 62 SE9 30.16F TC 12
ILZ033-039-045-046-055>057-062-063-210500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-210500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 56 43 61 SE3 30.20F TC 13
ILZ067-068-072-073-078-083-087-091-210500-
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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