788
ASUS43 KLOT 301001
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 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.
ILZ001-002-007-009-015-016-024-301100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 59 58 96 CALM 30.05R TC 15
STERLING* CLEAR 57 56 96 CALM 30.08R TC 14
SAVANNA* CLEAR 59 58 96 NE3 30.07S TC 15
ILZ003-004-008-010-011-017-018-301100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 55 54 96 CALM 30.09R TC 13
FREEPORT* CLEAR 57 56 95 CALM 30.10R TC 14
ILZ005-006-012>014-019>023-301100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 63 56 78 W3 30.06R TC 17
CHICAGO-MIDWAY CLEAR 63 58 83 CALM 30.05S TC 17
AURORA CLEAR N/A N/A N/A W3 30.07R
JOLIET* CLEAR 58 58 100 CALM 30.07S FOG TC 15
WAUKEGAN CLEAR 62 57 83 W5 30.06R TC 17
DUPAGE AIRPORT CLEAR 59 56 89 CALM 30.07R TC 15
KANKAKEE* CLEAR 58 56 94 CALM 30.07S TC 15
WHEELING PTCLDY 62 58 86 CALM 30.08R TC 17
LANSING* CLEAR 59 59 100 CALM 30.06S TC 15
NORTHERLY ISL* N/A 69 60 73 W2 N/A TC 21
LMZ740>746-301100-
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 66 1017.0R 1
WAUKEGAN HARBOR 66 70 1018.0R 1
WILMETTE BUOY 69 270/ 4/ 6 1020.0F 1/ 4
CHICAGO BUOY 71 72 310/ 2 1016.8R 1/ 4
NORTHERLY ISL 67 CALM / 1 N/A
CALUMET HARBOR 65 250/ 1/ 2 1017.7
BURNS HARBOR 1018.3S
MICH CITY BUOY 71 72 290/ 4/ 6 N/A 1/ 4
ST. JOSEPH BUOY 70 70 280/ 2/ 4 1018.1F 1/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-301100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 66 62 87 E6 30.04S TC 19
GALESBURG* CLEAR 61 61 100 CALM 30.07S TC 16
MACOMB* CLEAR 57 57 100 CALM 30.08S TC 14
ILZ028>032-037-038-041>044-048-051>054-059>061-301100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 60 59 96 NE5 30.07S TC 16
DECATUR CLEAR 59 58 96 NE3 30.05S TC 15
PEORIA CLEAR 62 59 90 CALM 30.06R TC 17
LINCOLN* CLEAR 58 58 100 CALM 30.06R TC 15
SPRINGFIELD CLEAR 60 59 96 CALM 30.05R TC 16
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-301100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 62 59 90 NE5 30.06R TC 17
MATTOON CLEAR 62 61 96 N3 30.04R TC 17
ILZ079-100>102-301100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BELLEVILLE CLEAR 68 67 97 NE5 30.00R TC 20
CAHOKIA* CLEAR 67 65 93 CALM 30.02R TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-301100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* CLEAR 65 65 100 NE3 30.05R TC 18
MARION FOG 63 63 99 CALM 30.01S VSB 1/2 TC 17
MT. VERNON CLEAR 65 64 97 NE3 30.02R TC 18
CENTRALIA* CLEAR 64 63 96 CALM 30.02S TC 18
SALEM* CLEAR 66 64 94 MISG 30.02R TC 19
ILZ067-068-072-073-078-083-087-091-301100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 65 63 93 NE6 30.02R TC 18
FAIRFIELD* CLEAR 65 64 94 CALM 30.01R TC 19
HARRISBURG* CLEAR 65 65 99 CALM 30.01R TC 18
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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