530
ASUS43 KLOT 201856
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 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.
ILZ001-002-007-009-015-016-024-202000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 64 44 48 VRB7 30.23F TC 18
ILZ003-004-008-010-011-017-018-202000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 65 40 39 NW9 30.25S TC 18
ILZ005-006-012>014-019>023-202000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 58 42 55 NE17G26 30.25S TC 14
CHICAGO-MIDWAY NOT AVBL
AURORA MOSUNNY 63 44 50 NE14G20 30.23F TC 17
WAUKEGAN MOSUNNY 55 37 50 NE14G24 30.28S TC 13
DUPAGE AIRPORT MOSUNNY 61 45 55 E13G20 30.24S TC 16
WHEELING MOSUNNY 57 42 57 NE16G25 30.28F TC 14
ROMEOVILLE* MOSUNNY 61 45 55 N13G23 30.24S TC 16
NORTHERLY ISL* N/A 54 46 74 N9 N/A TC 12
LMZ740>746-202000-
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 46 1022.9S 2/ 3
WAUKEGAN HARBOR 49 52 350/ 14/ 17 1024.2R 2/ 3
WILMETTE BUOY 50 60/ 19/ 23 1025.7F 2/ 3
CHICAGO BUOY 51 54 10/ 19/ 25 1023.2F 3/ 4
HARRISON CRIB 50 10/ 19/ 21 N/A
NORTHERLY ISL 55 10/ 14/ 17 N/A
CALUMET HARBOR 360/ 12/ 17 1024.6
BURNS HARBOR 50 10/ 12/ 13 1024.4R
MICHIGAN CITY 50 360/ 22/ 24 1023.2S
ST. JOSEPH BUOY 50 360/ 17/ 23 1024.8S 4/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-202000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-202000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD PTSUNNY 67 51 56 NE9 30.20F TC 19
TAYLORVILLE CLOUDY 63 55 77 N8 30.21R TC 17
ILZ033-039-045-046-055>057-062-063-202000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-202000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 63 52 67 N10 30.20F TC 17
BELLEVILLE CLOUDY 66 57 72 N13 30.16F TC 19
CAHOKIA* CLOUDY 64 53 67 N10 30.19S TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-202000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 63 55 77 N8 30.15S TC 17
MARION CLOUDY 61 57 88 N9 30.14F TC 16
ILZ067-068-072-073-078-083-087-091-202000-
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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