401
ASUS43 KLOT 310401
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM CDT THU JUL 30 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.
ILZ001-002-007-009-015-016-024-310500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 71 65 81 SE6 30.00S TC 22
STERLING* MOCLDY 68 68 100 E3 30.03F TC 20
SAVANNA* MOCLDY 71 64 79 CALM 30.02F TC 22
ILZ003-004-008-010-011-017-018-310500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 67 64 90 CALM 30.04F TC 19
FREEPORT* PTCLDY 65 64 95 S5 30.05F TC 18
ILZ005-006-012>014-019>023-310500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 75 62 64 SW3 30.03F TC 24
CHICAGO-MIDWAY CLOUDY 75 62 64 W3 30.04S TC 24
AURORA PTCLDY 66 65 96 CALM 30.04F TC 19
JOLIET* PTCLDY 68 66 93 CALM 30.05F TC 20
WAUKEGAN PTCLDY 69 60 73 SW3 30.02F TC 21
DUPAGE AIRPORT PTCLDY 70 64 81 CALM 30.04S TC 21
KANKAKEE* MOCLDY 68 66 93 CALM 30.06F TC 20
WHEELING MOCLDY 73 62 68 CALM 30.04F TC 23
LANSING* PTCLDY 70 65 84 CALM 30.05S TC 21
NORTHERLY ISL* N/A 72 65 78 SW1 N/A TC 22
LMZ740>746-310500-
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 73 160/ 6/ 6 1016.4S 1
WAUKEGAN HARBOR 73 72 230/ 4/ 4 1017.3F 1
WILMETTE BUOY 72 200/ 4/ 4 1019.9F 1
CHICAGO BUOY 74 73 1016.2R 1
HARRISON CRIB 76 190/ 4/ 5 N/A
NORTHERLY ISL 71 CALM / 1 N/A
CALUMET HARBOR 76 220/ 2/ 3 1017.5
BURNS HARBOR 1017.9S
MICH CITY BUOY 74 74 200/ 4/ 6 N/A 0
ST. JOSEPH BUOY 74 74 140/ 2/ 2 1018.0R 0
ILZ025>027-034>036-040-047-049-050-058-095>099-310500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 72 67 84 SE7 30.00S TC 22
GALESBURG* MOCLDY 72 64 74 SE3 30.03S TC 22
MACOMB* PTCLDY 69 68 98 CALM 30.03S TC 20
ILZ028>032-037-038-041>044-048-051>054-059>061-310500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOCLDY 71 63 75 SE7 30.06S TC 22
DECATUR PTCLDY 68 63 84 SE6 30.05S TC 20
PEORIA MOCLDY 75 63 66 SE6 30.02F TC 24
LINCOLN* MOCLDY 71 65 82 CALM 30.04S TC 22
SPRINGFIELD PTCLDY 73 64 73 SE6 30.03S TC 23
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-310500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 66 63 90 E5 30.06S TC 19
MATTOON PTCLDY 68 63 84 CALM 30.05S TC 20
ILZ079-100>102-310500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* PTCLDY 73 67 81 SE5 30.01S TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-310500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* PTCLDY 68 68 100 CALM 30.06S TC 20
MARION PTCLDY 69 64 85 CALM 30.05S TC 21
MT. VERNON N/A 66 65 96 CALM 30.05R TC 19
CENTRALIA* MOCLDY 69 64 82 CALM 30.04S TC 21
SALEM* MOCLDY 71 67 87 MISG 30.05R TC 22
ILZ067-068-072-073-078-083-087-091-310500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 71 67 87 N3 30.05S TC 22
FAIRFIELD* PTCLDY 69 63 82 CALM 30.04R TC 20
HARRISBURG* PTCLDY 69 68 94 CALM 30.04S TC 21
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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