694
ASUS43 KLOT 201656
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 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.
ILZ001-002-007-009-015-016-024-201800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 62 45 53 NE9 30.25F TC 17
ILZ003-004-008-010-011-017-018-201800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD NOT AVBL
PERU* MOSUNNY 63 45 51 NE13 30.24S TC 17
ILZ005-006-012>014-019>023-201800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 58 42 55 NE17G25 30.25S TC 14
CHICAGO-MIDWAY NOT AVBL
AURORA PTSUNNY 62 45 53 E9G22 30.24S TC 17
WAUKEGAN PTSUNNY 54 42 64 NE15G28 30.27S TC 12
DUPAGE AIRPORT MOSUNNY 60 44 55 MISG 30.24S TC 16
WHEELING PTSUNNY 57 42 57 E15G24 30.28S TC 14
MORRIS* PTSUNNY 63 46 55 E10G16 30.22F TC 17
ROMEOVILLE* MOSUNNY 61 45 55 NE17 30.24S TC 16
NORTHERLY ISL* N/A 55 47 74 N10 N/A TC 13
LMZ740>746-201800-
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 1022.7F 1/ 3
WAUKEGAN HARBOR 51 52 350/ 14/ 17 1023.9S 1/ 2
WILMETTE BUOY 51 50/ 14/ 17 1025.8R 2/ 3
CHICAGO BUOY 52 54 360/ 16/ 19 1023.5R 2/ 3
HARRISON CRIB 51 10/ 15/ 16 N/A
NORTHERLY ISL 55 350/ 8/ 13 N/A
CALUMET HARBOR 350/ 12/ 16 1024.6
BURNS HARBOR 51 20/ 6/ 7 1024.7S
MICHIGAN CITY 51 20/ 12/ 13 1023.6F
ST. JOSEPH BUOY 51 360/ 16/ 19 1024.7R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-201800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 59 47 64 NE8 30.24F TC 15
ILZ028>032-037-038-041>044-048-051>054-059>061-201800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD PTSUNNY 62 51 67 N10 30.21S TC 17
TAYLORVILLE PTSUNNY 61 54 77 N10G16 30.21S TC 16
ILZ033-039-045-046-055>057-062-063-201800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-201800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOSUNNY 61 50 67 N9 30.20F TC 16
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE LGT RAIN 61 55 82 N8 30.17S TC 16
MARION LGT RAIN 61 57 88 N9 30.17S TC 16
ILZ067-068-072-073-078-083-087-091-201800-
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
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page