679
ASUS43 KLOT 180001
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 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.
ILZ001-002-007-009-015-016-024-180100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 79 61 53 NW8 30.01F HX 80 TC 26
6HR MIN TEMP: 79; 6HR MAX TEMP: 83;
STERLING* CLEAR 78 64 61 W5 30.02F HX 80 TC 26
SAVANNA* PTCLDY 80 60 50 W5 30.01F HX 81 TC 27
ILZ003-004-008-010-011-017-018-180100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 78 59 51 W7 30.01F TC 26
6HR MIN TEMP: 77; 6HR MAX TEMP: 81;
FREEPORT* CLEAR 78 62 58 W3 30.03F HX 80 TC 26
ILZ005-006-012>014-019>023-180100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 77 60 55 E3 29.99F TC 25
6HR MIN TEMP: 74; 6HR MAX TEMP: 80;
CHICAGO-MIDWAY MOCLDY 75 57 53 E7 29.99F TC 24
6HR MIN TEMP: 75; 6HR MAX TEMP: 78;
AURORA CLEAR 76 64 66 NW3 30.00F TC 24
6HR MIN TEMP: 76; 6HR MAX TEMP: 80;
WAUKEGAN CLEAR 74 62 66 SE5 29.99F TC 23
6HR MIN TEMP: 72; 6HR MAX TEMP: 76;
DUPAGE AIRPORT CLEAR 77 59 53 W6 30.00F TC 25
6HR MIN TEMP: 76; 6HR MAX TEMP: 81;
WHEELING CLEAR 75 58 55 E3 30.01F TC 24
6HR MIN TEMP: 75; 6HR MAX TEMP: 78;
ROMEOVILLE* PTCLDY 79 68 69 SE5 30.01F HX 81 TC 26
LANSING* CLEAR 74 57 56 NE3 30.01F TC 23
NORTHERLY ISL* N/A 73 61 65 E3 N/A TC 23
LMZ740>746-180100-
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 74 74 140/ 8/ 10 1015.3F 1/ 6
WAUKEGAN HARBOR 74 75 150/ 6/ 8 1016.4F 1/ 6
WILMETTE BUOY 73 160/ 4/ 6 1019.5F 1/ 4
CHICAGO BUOY 74 74 1014.7F 2/ 4
HARRISON CRIB 75 90/ 3/ 3 N/A
NORTHERLY ISL 73 40/ 3/ 5 N/A
CALUMET HARBOR 73 40/ 4/ 5 1016.3
MICHIGAN CITY 76 10/ 5/ 6 1014.6F
MICH CITY BUOY 73 74 20/ 6/ 8 N/A 2/ 4
ST. JOSEPH BUOY 73 75 320/ 8/ 10 1016.6F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-180100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 78 66 66 NW3 30.04F HX 80 TC 26
ILZ028>032-037-038-041>044-048-051>054-059>061-180100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTCLDY 77 62 59 N7 30.04F TC 25
DECATUR PTCLDY 77 60 55 N10 30.03S TC 25
PEORIA PTCLDY 78 63 59 NW3 30.03F HX 80 TC 26
6HR MIN TEMP: 77; 6HR MAX TEMP: 81;
LINCOLN* PTCLDY 78 64 61 N5 30.02F HX 80 TC 26
SPRINGFIELD PTCLDY 76 65 68 N5 30.03F TC 24
6HR MIN TEMP: 76; 6HR MAX TEMP: 83;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-180100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 74 65 73 NW8 30.02S TC 23
MATTOON PTCLDY 76 64 66 NW7 30.01S TC 24
ILZ079-100>102-180100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 79 64 61 N6 30.02F HX 81 TC 26
BELLEVILLE MOCLDY 80 69 69 N5 29.99F HX 83 TC 27
CAHOKIA* MOCLDY 80 65 59 N6 30.01F HX 82 TC 27
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-180100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 81 66 61 N10 30.01S HX 83 TC 27
MT. VERNON PTCLDY 76 65 68 CALM 30.02S TC 24
CENTRALIA* PTCLDY 77 66 69 CALM 30.02S TC 25
ILZ067-068-072-073-078-083-087-091-180100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 78 67 68 NW8 29.99F HX 80 TC 26
FAIRFIELD* CLEAR 76 65 67 NW3 30.01S TC 25
HARRISBURG* PTCLDY 80 66 63 NW6 30.00F HX 82 TC 26
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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