109
ASUS43 KLOT 202156
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 PM CDT WED MAY 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.
ILZ001-002-007-009-015-016-024-202300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 66 45 46 NE10 30.19F TC 19
ILZ003-004-008-010-011-017-018-202300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD NOT AVBL
PERU* SUNNY 68 43 40 NE12 30.19S TC 20
ILZ005-006-012>014-019>023-202300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 56 34 43 NE16G26 30.25S TC 13
CHICAGO-MIDWAY NOT AVBL
AURORA SUNNY 60 41 49 NE15G24 30.23R TC 16
WAUKEGAN SUNNY 53 32 44 NE13G23 30.26F TC 12
DUPAGE AIRPORT SUNNY 57 37 47 NE16G25 30.24R TC 14
WHEELING MOSUNNY 55 33 43 NE16G24 30.27F TC 13
MORRIS* SUNNY 64 43 45 NE7 30.21S TC 18
ROMEOVILLE* SUNNY 61 41 48 NE14G23 30.23F TC 16
NORTHERLY ISL* N/A 55 41 59 N10 N/A TC 13
LMZ740>746-202300-
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 47 1022.6F 2/ 4
WAUKEGAN HARBOR 49 52 360/ 16/ 21 1023.6F 2/ 4
WILMETTE BUOY 50 70/ 17/ 21 1025.3F 3/ 4
CHICAGO BUOY 52 55 20/ 19/ 25 1023.1F 4/ 4
HARRISON CRIB 51 20/ 22/ 24 N/A
NORTHERLY ISL 54 350/ 11/ 16 N/A
CALUMET HARBOR 350/ 15/ 19 1024.5
BURNS HARBOR 51 30/ 10/ 12 1024.4F
MICHIGAN CITY 51 20/ 19/ 22 1023.3F
ST. JOSEPH BUOY 51 360/ 17/ 21 1024.7F 4/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-202300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-202300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD MOSUNNY 70 50 49 NE13 30.15F TC 21
TAYLORVILLE CLOUDY 68 52 56 NE8 30.15F TC 20
ILZ033-039-045-046-055>057-062-063-202300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-202300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 66 54 63 NE9 30.15F TC 19
BELLEVILLE CLOUDY 68 57 68 N12 30.11F TC 20
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-202300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
MARION CLOUDY 63 57 82 N8 30.12F TC 17
ILZ067-068-072-073-078-083-087-091-202300-
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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