629  
ASUS43 KLOT 200613  
RWRIL  
 
ILLINOIS REGIONAL WEATHER ROUNDUP  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
100 AM CDT WED AUG 20 2025  
 
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.
 
 
ILZ001-002-007-009-015-016-024-200700-  
NORTHWEST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
MOLINE CLEAR 69 68 96 S3 30.07S TC 21  
6HR MIN TEMP: 69; 6HR MAX TEMP: 80;  
 

 
 
ILZ003-004-008-010-011-017-018-200700-  
NORTH CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
ROCKFORD MOCLDY 67 66 97 CALM 30.09S TC 19  
6HR MIN TEMP: 67; 6HR MAX TEMP: 79;  
 
ROCHELLE* FOG 64 63 94 CALM 30.09S VSB 1/2 TC 18  
DE KALB* CLEAR 66 66 100 CALM 30.08F TC 19  
PERU* CLEAR 67 67 100 CALM 30.08S FOG TC 20  

 
 
ILZ005-006-012>014-019>023-200700-  
NORTHEAST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CHICAGO-OHARE PTCLDY 70 67 90 CALM 30.05S TC 21  
6HR MIN TEMP: 69; 6HR MAX TEMP: 75;  
 
CHICAGO-MIDWAY PTCLDY 72 66 81 NW3 30.04F TC 22  
6HR MIN TEMP: 72; 6HR MAX TEMP: 77;  
 
AURORA CLEAR 66 64 93 CALM 30.07S FOG TC 19  
6HR MIN TEMP: 66; 6HR MAX TEMP: 78;  
 
JOLIET* CLEAR 69 68 98 CALM 30.07S TC 21  
WAUKEGAN MOCLDY 69 66 90 NW3 30.06F TC 21  
6HR MIN TEMP: 66; 6HR MAX TEMP: 73; 6HR PCP: TRACE;  
 
DUPAGE AIRPORT CLEAR 67 65 93 CALM 30.07S TC 19  
6HR MIN TEMP: 67; 6HR MAX TEMP: 77;  
 
KANKAKEE* CLEAR 70 66 88 CALM 30.07S TC 21  
WHEELING CLEAR 69 67 93 N5 30.08S TC 21  
6HR MIN TEMP: 68; 6HR MAX TEMP: 74;  
 
MORRIS* CLEAR 68 68 100 CALM 30.06S TC 20  
ROMEOVILLE* CLEAR 70 70 100 NW5 30.07S TC 21  
LANSING* CLOUDY 71 68 91 CALM 30.06S TC 22  
NORTHERLY ISL* N/A 71 66 84 N3 N/A TC 22  

 
 
LMZ740>746-200700-  
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)  
S. MID LAKE BUOY 72 75 350/ 12/ 14 1017.4F 3/ 5  
WINTHROP HARBOR 69 69 250/ 6/ 8 N/A 2/ 4  
WAUKEGAN HARBOR 71 74 290/ 6/ 8 N/A 2/ 5  
WILMETTE BUOY 73 360/ 8/ 10 1020.0F 2/ 5  
NORTHERLY ISL 71 10/ 5/ 7 N/A  
CALUMET HARBOR 72 340/ 6/ 8 1016.6  
BURNS HARBOR 73 10/ 8/ 11 1017.6F  
MICHIGAN CITY 73 10/ 17/ 18 1015.6F  
MICH CITY BUOY 74 76 360/ 14/ 17 1015.8F 5/ 6  
ST. JOSEPH BUOY 72 73 340/ 14/ 17 1017.8S 3/ 5  

 
 
ILZ025>027-034>036-040-047-049-050-058-095>099-200700-  
WEST-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
QUINCY PTCLDY 70 69 97 CALM 30.08S TC 21  
GALESBURG* CLEAR 67 67 100 CALM 30.09F TC 19  
MACOMB* CLEAR 67 67 99 CALM 30.10S TC 20  
JACKSONVILLE* MOCLDY 69 68 98 CALM 30.07F TC 21  
PITTSFIELD* MOCLDY 73 72 94 NE3 30.09S TC 23  

 
 
ILZ028>032-037-038-041>044-048-051>054-059>061-200700-  
CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
PONTIAC PTCLDY 68 67 97 N3 30.07F TC 20  
BLOOMINGTON PTCLDY 69 69 100 N7 30.07F TC 21  
DECATUR MOCLDY 72 69 90 N6 30.05S TC 22  
PEORIA CLEAR 69 67 93 N3 30.07S TC 21  
6HR MIN TEMP: 69; 6HR MAX TEMP: 76;  
 
LACON* CLEAR 68 66 94 N3 30.06F TC 20  
LINCOLN* PTCLDY 70 70 100 CALM 30.06S TC 21  
SPRINGFIELD MOCLDY 70 68 93 N6 30.06S TC 21  
6HR MIN TEMP: 68; 6HR MAX TEMP: 83;  
 
TAYLORVILLE MOCLDY 70 68 94 N5 30.05F TC 21  

 
 
ILZ033-039-045-046-055>057-062-063-200700-  
EAST-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CHAMPAIGN PTCLDY 72 69 90 N6 30.04F TC 22  
DANVILLE* MOCLDY 70 68 93 N6 30.05S TC 21  
RANTOUL* PTCLDY 71 69 93 NE6 30.05S TC 22  
MATTOON PTCLDY 70 68 93 N3 30.03S TC 21  
PARIS* CLOUDY 72 68 89 NE6 30.04S TC 22  

 
 
ILZ079-100>102-200700-  
SOUTHWEST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
ALTON PTCLDY 74 71 89 NW3 30.05S TC 24  
BELLEVILLE PTCLDY 78 74 88 N8 30.01S TC 25  
CAHOKIA* CLOUDY 78 73 84 NE7 30.03S HX 81 TC 26  
SPARTA* PTCLDY 75 74 96 CALM 30.04S TC 24  

 
 
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-200700-  
SOUTH-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CARBONDALE PTCLDY 75 71 87 CALM 30.03R TC 24  
6HR MIN TEMP: 75; 6HR MAX TEMP: 80;  
 
CAIRO* MOCLDY 75 73 96 N9 30.02R TC 24  
EFFINGHAM* PTCLDY 72 71 96 N3 30.05F TC 22  
MARION CLOUDY N/A N/A N/A SW3 30.04S  
MT. VERNON MOCLDY 77 73 87 VRB7 30.02R TC 25  
CENTRALIA* PTCLDY 76 71 84 NE6 30.03R TC 25  
SALEM* PTCLDY 75 70 84 N9 30.03S TC 24  
METROPOLIS* LGT RAIN 73 72 97 NW9 30.00F TC 23  

 
 
ILZ067-068-072-073-078-083-087-091-200700-  
SOUTHEAST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
LAWRENCEVILLE PTCLDY 75 73 93 N9 30.00R TC 24  
FLORA* PTCLDY 73 73 100 N8 30.03S TC 23  
FAIRFIELD* PTCLDY 75 74 96 N5 30.01S TC 24  
HARRISBURG* CLOUDY 74 72 93 CALM 30.02S TC 23  

 
 
ABBREVIATIONS USED IN REMARKS  
TC - TEMPERATURE IN CELSIUS  
WCI - WIND CHILL INDEX  
HX - HEAT INDEX  
VSB - VISIBILITY  

 
 
 
 
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