733  
ASUS43 KLOT 172006  
RWRIL  
 
ILLINOIS REGIONAL WEATHER ROUNDUP  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
300 PM CDT MON AUG 17 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.
 
 
ILZ001-002-007-009-015-016-024-172100-  
NORTHWEST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
MOLINE PTSUNNY 82 63 52 NW12 30.06S HX 83 TC 28  
STERLING* MOSUNNY 82 59 45 N7 30.07S HX 82 TC 28  
SAVANNA* MOSUNNY 80 57 44 N3 30.06F HX 80 TC 27  

 
 
ILZ003-004-008-010-011-017-018-172100-  
NORTH CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
ROCKFORD MOSUNNY 81 58 45 NW10 30.06F HX 81 TC 27  
FREEPORT* PTSUNNY 80 62 53 NW6 30.08S HX 81 TC 27  
ROCHELLE* MOSUNNY 79 56 45 NW8 30.06S HX 80 TC 26  
DE KALB* MOSUNNY 78 61 55 N7 30.06F HX 80 TC 26  

 
 
ILZ005-006-012>014-019>023-172100-  
NORTHEAST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CHICAGO-OHARE PTSUNNY 77 62 59 N10 30.02S TC 25  
CHICAGO-MIDWAY PTSUNNY 76 63 64 NE9 30.02S TC 24  
AURORA SUNNY 79 60 52 N13 30.03F HX 80 TC 26  
JOLIET* MOSUNNY 82 62 51 NW7 30.03S HX 83 TC 28  
WAUKEGAN PTSUNNY 76 65 68 NE6 30.02F TC 24  
DUPAGE AIRPORT MOSUNNY 80 59 48 N10 30.03S HX 81 TC 27  
KANKAKEE* PTSUNNY 78 64 62 CALM 30.04S HX 80 TC 26  
WHEELING SUNNY 77 62 59 E6 30.04F TC 25  
ROMEOVILLE* MOSUNNY 79 63 57 NW3 30.03F HX 80 TC 26  
LANSING* MOSUNNY 77 61 58 NE6 30.03F TC 25  
NORTHERLY ISL* N/A 76 64 66 NE6 N/A TC 24  

 
 
LMZ740>746-172100-  
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 72 75 80/ 6/ 8 1016.6F 1/ 4  
WAUKEGAN HARBOR 72 75 50/ 6/ 8 1017.4F 1/ 4  
WILMETTE BUOY 72 70/ 8/ 12 1020.4F 3/ 5  
CHICAGO BUOY 73 74 1016.1F 2/ 5  
HARRISON CRIB 72 30/ 10/ 11 N/A  
NORTHERLY ISL 75 10/ 7/ 10 N/A  
CALUMET HARBOR 74 10/ 9/ 12 1017.1  
MICHIGAN CITY 74 10/ 9/ 11 1015.5F  
MICH CITY BUOY 71 74 360/ 10/ 14 N/A 3/ 4  
ST. JOSEPH BUOY 71 75 360/ 10/ 14 1017.6F 3/ 5  

 
 
ILZ025>027-034>036-040-047-049-050-058-095>099-172100-  
WEST-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
QUINCY MOSUNNY 80 62 54 NW6 30.09F HX 81 TC 27  
GALESBURG* PTSUNNY 80 66 63 W8 30.09S HX 82 TC 26  
MACOMB* SUNNY 80 66 60 NW7 30.10S HX 82 TC 27  
JACKSONVILLE* MOSUNNY 80 65 61 NW7 30.08S HX 82 TC 27  

 
 
ILZ028>032-037-038-041>044-048-051>054-059>061-172100-  
CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
PONTIAC PTSUNNY 78 65 64 NW12 30.04F HX 80 TC 25  
BLOOMINGTON MOSUNNY 80 63 55 N16 30.07S HX 81 TC 27  
DECATUR PTSUNNY 80 62 54 N15 30.06S HX 81 TC 27  
PEORIA MOSUNNY 80 61 52 NW10G20 30.06S HX 81 TC 27  
LACON* SUNNY 78 58 51 NW7 30.05S TC 25  
LINCOLN* PTSUNNY 81 64 56 N7 30.06S HX 82 TC 27  
SPRINGFIELD MOSUNNY 81 64 56 N8 30.07S HX 82 TC 27  
TAYLORVILLE NOT AVBL  

 
 
ILZ033-039-045-046-055>057-062-063-172100-  
EAST-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CHAMPAIGN MOSUNNY 80 68 66 NW12 30.04S HX 83 TC 27  
RANTOUL* MOSUNNY 80 67 64 N10G17 30.03F HX 82 TC 26  
MATTOON MOSUNNY 80 65 59 NW13 30.03F HX 82 TC 27  
PARIS* MOSUNNY 81 65 58 NW12 30.03S HX 82 TC 27  

 
 
ILZ079-100>102-172100-  
SOUTHWEST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
ALTON MOSUNNY 81 64 57 NW8 30.09S HX 82 TC 27  
BELLEVILLE MOSUNNY 84 69 61 NW10 30.04F HX 88 TC 29  
CAHOKIA* PTSUNNY 82 66 58 N13 30.06F HX 84 TC 28  

 
 
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-172100-  
SOUTH-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CARBONDALE PTSUNNY 84 70 61 NW14 30.04F HX 88 TC 29  
CAIRO* PTSUNNY 86 74 68 N9G16 30.03F HX 94 TC 30  
EFFINGHAM* PTSUNNY 81 67 63 NW12 30.06S HX 83 TC 27  
MT. VERNON PTSUNNY 82 65 56 VRB5 30.05S HX 84 TC 28  
CENTRALIA* MOSUNNY 82 65 56 N10G16 30.06S HX 84 TC 28  
SALEM* N/A 82 69 65 MISG 30.06S HX 85 TC 28  
METROPOLIS* PTSUNNY 89 71 54 W9 30.03F HX 95 TC 32  

 
 
ILZ067-068-072-073-078-083-087-091-172100-  
SOUTHEAST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
LAWRENCEVILLE MOSUNNY 85 68 56 NW15 30.00S HX 88 TC 29  
FLORA* PTSUNNY 81 66 61 N14 30.04F HX 83 TC 27  
FAIRFIELD* PTSUNNY 82 66 58 NW8 30.03S HX 84 TC 28  
HARRISBURG* PTSUNNY 86 72 62 NW10G21 30.03S HX 92 TC 30  
ROBINSON* SUNNY 82 68 61 NW14G21 30.01S HX 85 TC 28  

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

 
 
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab IL Page Main Text Page