586  
ASUS43 KLOT 301510  
RWRIL  
 
ILLINOIS REGIONAL WEATHER ROUNDUP  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
1000 AM CDT WED SEP 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.
 
 
ILZ001-002-007-009-015-016-024-301600-  
NORTHWEST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
MOLINE RAIN 63 61 93 S13 29.89S FOG TC 17  
STERLING* CLOUDY 63 63 100 VRB5 29.91S FOG TC 17  

 
 
ILZ003-004-008-010-011-017-018-301600-  
NORTH CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
ROCKFORD CLOUDY 65 63 93 S14 29.90F TC 18  

 
 
ILZ005-006-012>014-019>023-301600-  
NORTHEAST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CHICAGO-OHARE RAIN 62 61 96 S10 29.94S FOG TC 17  
CHICAGO-MIDWAY HVY RAIN 62 61 96 S10 29.96S FOG TC 17  
AURORA LGT RAIN 62 61 96 S10 29.94S FOG TC 17  
WAUKEGAN LGT RAIN 61 61 100 S9 29.91F FOG TC 16  
DUPAGE AIRPORT RAIN 62 61 96 S12 29.94S FOG TC 17  
WHEELING LGT RAIN 62 61 96 S8 29.95F FOG TC 17  
ROMEOVILLE* LGT RAIN 61 61 100 S7 29.97S FOG TC 16  
NORTHERLY ISL* N/A 61 59 93 S8 N/A TC 16  

 
 
LMZ740>746-301600-  
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 63 65 130/ 16/ 19 1010.6 2/ 3  
WAUKEGAN HARBOR 63 65 160/ 14/ 17 1013.7 1/ 3  
WILMETTE BUOY 62 140/ 12/ 16 1015.8 1/ 2  
CHICAGO BUOY 63 64 190/ 10/ 14 1013.4 1  
HARRISON CRIB 62 170/ 13/ 14 N/A  
NORTHERLY ISL 60 140/ 3/ 8 N/A  
CALUMET HARBOR 62 160/ 6/ 7 1015.1  
MICHIGAN CITY 64 180/ 6/ 7 1014.9R  
MICH CITY BUOY 63 63 170/ 6/ 8 N/A 1  
ST. JOSEPH BUOY 63 62 210/ 6/ 8 1016.4F 1  

 
 
ILZ025>027-034>036-040-047-049-050-058-095>099-301600-  
WEST-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
QUINCY CLOUDY 65 60 84 E3 29.90R TC 18  

 
 
ILZ028>032-037-038-041>044-048-051>054-059>061-301600-  
CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
BLOOMINGTON LGT RAIN 63 59 87 SE9 29.96F TC 17  
DECATUR CLOUDY 69 55 60 S3 29.97S TC 21  
PEORIA LGT RAIN 61 59 93 SE5 29.95S TC 16  
SPRINGFIELD PTSUNNY 69 56 62 E3 29.93S TC 21  
TAYLORVILLE NOT AVBL  

 
 
ILZ033-039-045-046-055>057-062-063-301600-  
EAST-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CHAMPAIGN CLOUDY 69 53 56 S6 29.98S TC 21  
MATTOON CLOUDY 71 54 54 S7 29.98S TC 22  

 
 
ILZ079-100>102-301600-  
SOUTHWEST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
ALTON SUNNY 73 54 49 S8 29.95R TC 23  
CAHOKIA* PTSUNNY 78 56 46 VRB5 29.94S TC 26  

 
 
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-301600-  
SOUTH-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CARBONDALE SUNNY 75 54 46 S9 29.99S TC 24  
MT. VERNON PTSUNNY 77 53 43 SW12 29.99S TC 25  

 
 
ILZ067-068-072-073-078-083-087-091-301600-  
SOUTHEAST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
LAWRENCEVILLE PTSUNNY 71 57 61 S8 30.01S TC 22  

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

 
 
 
 
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