239
ASUS43 KLOT 300911
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 AM 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.
ILZ001-002-007-009-015-016-024-301000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 59 57 93 E6 30.04S TC 15
STERLING* CLEAR 58 58 100 CALM 30.07S TC 14
SAVANNA* CLEAR 61 60 96 CALM 30.06F TC 16
ILZ003-004-008-010-011-017-018-301000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 57 55 93 CALM 30.08S TC 14
FREEPORT* CLEAR 58 57 95 CALM 30.09S TC 15
ROCHELLE* CLEAR 54 51 90 CALM 30.08S TC 12
DE KALB* CLEAR 60 53 76 CALM 30.08S TC 16
PERU* CLEAR 57 55 94 CALM 30.07S TC 14
ILZ005-006-012>014-019>023-301000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 64 56 75 CALM 30.05S TC 18
CHICAGO-MIDWAY CLEAR 65 58 78 CALM 30.05F TC 18
AURORA CLEAR N/A N/A N/A CALM 30.06S
JOLIET* CLEAR 59 59 100 CALM 30.07S TC 15
WAUKEGAN CLEAR 61 56 83 W3 30.05S TC 16
DUPAGE AIRPORT CLEAR 59 55 87 CALM 30.06S TC 15
KANKAKEE* CLEAR 59 58 94 CALM 30.07S TC 15
WHEELING CLEAR 62 59 90 CALM 30.07S TC 17
ROMEOVILLE* CLEAR 61 61 100 CALM 30.07S TC 16
LANSING* CLEAR 59 59 100 CALM 30.06S FOG TC 15
NORTHERLY ISL* N/A 68 61 78 CALM N/A TC 20
LMZ740>746-301000-
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 1016.7 1
WAUKEGAN HARBOR 67 70 1017.5 1
WILMETTE BUOY 69 280/ 4/ 6 1020.1S 1/ 4
CHICAGO BUOY 71 72 310/ 2 1016.7 1/ 4
NORTHERLY ISL 67 CALM / 3 N/A
CALUMET HARBOR 66 CALM / 1 1017.9R
BURNS HARBOR 1018.3S
MICH CITY BUOY 71 72 320/ 2/ 4 N/A 1/ 4
ST. JOSEPH BUOY 70 70 270/ 2/ 4 1018.2R 1/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-301000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 66 62 87 E5 30.04R TC 19
GALESBURG* CLEAR 64 60 84 CALM 30.07R TC 18
MACOMB* CLEAR 59 59 100 CALM 30.07S TC 15
JACKSONVILLE* CLEAR 60 60 100 E5 30.04S TC 16
ILZ028>032-037-038-041>044-048-051>054-059>061-301000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 55 55 100 MISG 30.06S TC 13
BLOOMINGTON CLEAR 60 59 96 E6 30.07S TC 16
DECATUR CLEAR 61 59 93 NE5 30.05R TC 16
PEORIA CLEAR 62 59 90 NE3 30.05S TC 17
LACON* CLEAR 58 55 91 CALM 30.06S TC 14
LINCOLN* CLEAR 59 59 100 CALM 30.05S TC 15
SPRINGFIELD CLEAR 62 60 93 CALM 30.04R TC 17
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-301000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 64 60 87 NE6 30.05R TC 18
DANVILLE* N/A 61 60 96 CALM 30.06S VSB 1 TC 16
MATTOON CLEAR 63 62 97 CALM 30.03S TC 17
PARIS* CLEAR 63 62 97 NE3 30.05R TC 17
ILZ079-100>102-301000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 65 64 95 CALM 30.02R TC 18
BELLEVILLE CLEAR 69 68 97 CALM 29.99R TC 21
CAHOKIA* CLEAR 66 65 96 CALM 30.01R TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-301000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLEAR 70 69 98 CALM 29.98R TC 21
EFFINGHAM* CLEAR 65 65 100 CALM 30.04S TC 19
MARION CLEAR 65 64 98 CALM 30.00S TC 18
MT. VERNON CLEAR 66 65 96 N3 30.00S TC 19
CENTRALIA* CLEAR 65 64 97 CALM 30.01S TC 18
SALEM* CLEAR 68 65 91 MISG 30.01S TC 20
METROPOLIS* CLEAR 66 66 97 CALM 29.98S TC 19
ILZ067-068-072-073-078-083-087-091-301000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 66 64 93 NE5 30.01R TC 19
FAIRFIELD* CLEAR 66 64 95 N3 30.00S TC 19
HARRISBURG* CLEAR 67 66 96 CALM 29.99S TC 20
ROBINSON* CLEAR 63 63 100 N3 30.02R FOG TC 17
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