596
ASUS43 KLOT 280501
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 AM 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.
ILZ001-002-007-009-015-016-024-280600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 56 55 97 W3 30.10R TC 13
STERLING* PTCLDY 54 52 93 CALM 30.11S TC 12
SAVANNA* PTCLDY 55 55 97 CALM 30.11S TC 13
ILZ003-004-008-010-011-017-018-280600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 51 51 100 CALM 30.12S TC 11
FREEPORT* PTCLDY 51 50 95 CALM 30.13S TC 11
DE KALB* CLEAR 51 51 98 N3 30.12S TC 11
ILZ005-006-012>014-019>023-280600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 57 54 89 NW3 30.08S TC 14
CHICAGO-MIDWAY CLEAR 55 53 93 NW5 30.08F TC 13
AURORA CLEAR 48 47 96 CALM 30.10S TC 9
JOLIET* CLEAR 52 52 100 CALM 30.10S TC 11
WAUKEGAN CLEAR 53 52 96 NW5 30.09S TC 12
DUPAGE AIRPORT CLEAR 50 48 93 CALM 30.10S TC 10
WHEELING PTCLDY 52 52 100 CALM 30.11S TC 11
LANSING* FOG 50 49 98 CALM 30.09S VSB 1/2 TC 10
NORTHERLY ISL* N/A 60 54 80 NW6 N/A TC 16
LMZ740>746-280600-
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 60 65 300/ 8/ 10 1017.8F 1
WAUKEGAN HARBOR 59 64 280/ 6/ 8 1018.6F 1
WILMETTE BUOY 64 10/ 8/ 10 1020.6F 1/ 3
CHICAGO BUOY 65 64 350/ 6/ 10 1017.6F 1/ 3
HARRISON CRIB 64 350/ 8/ 9 N/A
NORTHERLY ISL 60 360/ 5/ 6 N/A
CALUMET HARBOR 62 350/ 4/ 5 1018.7
MICHIGAN CITY 61 20/ 4/ 5 1017.7S
MICH CITY BUOY 62 62 40/ 6/ 8 N/A 1/ 3
ST. JOSEPH BUOY 57 58 CALM 1019.0F 1/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-280600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 60 56 86 N5 30.09S TC 16
MACOMB* PTCLDY 57 57 100 N3 30.12R TC 14
ILZ028>032-037-038-041>044-048-051>054-059>061-280600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTCLDY 52 49 89 MISG 30.10S TC 11
DECATUR CLEAR 52 47 83 CALM 30.08R TC 11
PEORIA CLEAR 54 51 90 E3 30.09R TC 12
SPRINGFIELD CLEAR 52 50 93 CALM 30.08R TC 11
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-280600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 57 47 69 NE8 30.08S TC 14
MATTOON CLEAR 53 47 79 N3 30.06S TC 12
ILZ079-100>102-280600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* MOCLDY 65 57 75 CALM 30.06R TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-280600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* PTCLDY 52 50 94 CALM 30.07R TC 11
MT. VERNON CLEAR 49 48 97 CALM 30.05R TC 9
CENTRALIA* PTCLDY 50 49 95 CALM 30.05S TC 10
SALEM* CLEAR 52 48 84 MISG 30.05S TC 11
ILZ067-068-072-073-078-083-087-091-280600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 53 50 89 CALM 30.04S TC 12
FAIRFIELD* CLEAR 53 47 79 CALM 30.04S TC 12
HARRISBURG* PTCLDY 50 48 90 CALM 30.04S TC 10
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