587
ASUS43 KLOT 271556
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM CDT SUN SEP 27 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.
ILZ001-002-007-009-015-016-024-271700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 64 55 72 CALM 30.13S TC 18
ILZ003-004-008-010-011-017-018-271700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 68 50 52 E3 30.16R TC 20
ILZ005-006-012>014-019>023-271700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 67 47 48 NE8 30.14S TC 19
CHICAGO-MIDWAY NOT AVBL
AURORA MOSUNNY 66 51 58 SE3 30.14S TC 19
WAUKEGAN MOSUNNY 67 52 58 E7 30.14S TC 19
DUPAGE AIRPORT MOSUNNY 67 51 56 CALM 30.15S TC 19
WHEELING MOSUNNY 67 50 54 N8 30.15F TC 19
ROMEOVILLE* SUNNY 68 50 52 N5 30.15S TC 20
NORTHERLY ISL* N/A 68 56 65 N5 N/A TC 20
LMZ740>746-271700-
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 63 65 360/ 6/ 8 1019.6S 1
WAUKEGAN HARBOR 63 64 350/ 6/ 8 1020.3F 1/ 3
WILMETTE BUOY 63 340/ 6/ 8 1023.0R 1
CHICAGO BUOY 64 64 350/ 6/ 8 1019.4F 1/ 3
HARRISON CRIB 63 350/ 5/ 5 N/A
NORTHERLY ISL 67 20/ 4/ 6 N/A
CALUMET HARBOR 40/ 4/ 6 1020.6
MICHIGAN CITY 63 360/ 4/ 5 1019.7F
MICH CITY BUOY 58 62 10/ 4/ 6 N/A 1
ST. JOSEPH BUOY 53 53 360/ 4/ 4 1021.3R 1
ILZ025>027-034>036-040-047-049-050-058-095>099-271700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-271700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD PTSUNNY 69 54 58 VRB3 30.13R TC 21
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-271700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-271700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 64 52 63 N10 30.12S TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-271700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 66 54 63 N3 30.10S TC 19
MARION MOSUNNY 70 52 52 CALM 30.10S TC 21
ILZ067-068-072-073-078-083-087-091-271700-
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