471
ASUS43 KLOT 290203
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 PM CDT MON SEP 28 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.
ILZ001-002-007-009-015-016-024-290300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 55 53 93 CALM 30.03S TC 13
STERLING* CLEAR 59 48 67 CALM 30.06R TC 15
SAVANNA* CLEAR 63 56 78 CALM 30.05R TC 17
ILZ003-004-008-010-011-017-018-290300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 59 50 72 CALM 30.07R TC 15
FREEPORT* CLEAR 59 52 77 S3 30.07R TC 15
DE KALB* CLEAR 59 54 84 E6 30.07S TC 15
ILZ005-006-012>014-019>023-290300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 63 57 81 E6 30.05S TC 17
CHICAGO-MIDWAY CLEAR 64 58 80 E7 30.05F TC 18
AURORA CLEAR 59 54 83 CALM 30.05S TC 15
JOLIET* CLEAR 62 55 77 CALM 30.06S TC 17
WAUKEGAN CLEAR 55 55 100 CALM 30.05S TC 13
DUPAGE AIRPORT CLEAR 60 53 77 CALM 30.06S TC 16
WHEELING CLEAR 59 58 96 CALM 30.07S TC 15
LANSING* CLEAR 58 54 86 CALM 30.06F TC 14
NORTHERLY ISL* N/A 61 58 90 NE5 N/A TC 16
LMZ740>746-290300-
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 65 65 60/ 4/ 6 1016.8F 1
WAUKEGAN HARBOR 65 65 40/ 2/ 4 1017.7F 1
WILMETTE BUOY 65 40/ 2/ 4 1020.0S 1
CHICAGO BUOY 64 64 CALM / 2 1017.0R 1/ 3
HARRISON CRIB 65 50/ 3/ 3 N/A
NORTHERLY ISL 62 10/ 4/ 4 N/A
CALUMET HARBOR 62 10/ 2/ 4 1018.1
MICHIGAN CITY 62 20/ 4/ 5 1017.2R
MICH CITY BUOY 62 62 20/ 4/ 4 N/A 1/ 3
ST. JOSEPH BUOY 61 60 20/ 4/ 4 1018.7R 1
ILZ025>027-034>036-040-047-049-050-058-095>099-290300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 66 51 58 E6 30.03S TC 19
GALESBURG* CLEAR 53 51 94 CALM 30.05S TC 12
MACOMB* CLEAR 52 51 95 CALM 30.06S TC 11
ILZ028>032-037-038-041>044-048-051>054-059>061-290300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 62 49 62 CALM 30.06R TC 17
DECATUR CLEAR 57 49 74 CALM 30.05R TC 14
PEORIA CLEAR 57 52 83 CALM 30.05R TC 14
LACON* CLEAR 54 49 82 CALM 30.04R TC 12
SPRINGFIELD CLEAR 54 49 83 CALM 30.04R TC 12
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-290300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 57 48 72 SE3 30.04S TC 14
MATTOON CLEAR 61 56 83 CALM 30.04R TC 16
ILZ079-100>102-290300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 63 50 63 VRB3 30.03R TC 17
CAHOKIA* CLEAR 57 55 93 CALM 30.01S TC 14
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-290300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 61 52 72 CALM 30.01R TC 16
CAIRO* CLEAR 62 54 76 CALM 30.01S TC 16
EFFINGHAM* CLEAR 58 53 85 CALM 30.05S TC 14
MT. VERNON CLEAR 56 52 86 CALM 30.03R TC 13
CENTRALIA* CLEAR 57 48 73 CALM 30.03R TC 14
SALEM* CLEAR 58 49 72 MISG 30.03R TC 15
ILZ067-068-072-073-078-083-087-091-290300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 62 51 67 CALM 30.03R TC 17
FLORA* CLEAR 61 52 72 NE5 30.04R TC 16
FAIRFIELD* CLEAR 64 49 59 CALM 30.03R TC 18
HARRISBURG* CLEAR 58 50 75 CALM 30.02S TC 15
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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