732
ASUS43 KLOT 172301
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 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.
ILZ001-002-007-009-015-016-024-180000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 81 60 48 W9 30.02F HX 82 TC 27
STERLING* SUNNY 81 62 52 NW7 30.03F HX 82 TC 27
SAVANNA* SUNNY 81 60 48 W3 30.03S HX 81 TC 27
ILZ003-004-008-010-011-017-018-180000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 79 58 48 W9 30.03S HX 80 TC 26
FREEPORT* MOSUNNY 80 62 53 W7 30.04F HX 81 TC 27
ILZ005-006-012>014-019>023-180000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 79 58 48 NW7 30.00S HX 80 TC 26
CHICAGO-MIDWAY PTSUNNY 78 61 55 VRB7 30.00F HX 80 TC 26
AURORA SUNNY 78 61 55 NW5 30.02S HX 80 TC 26
JOLIET* SUNNY 81 58 45 NW5 30.01S HX 81 TC 27
WAUKEGAN MOSUNNY 75 61 61 SE7 30.00F TC 24
DUPAGE AIRPORT SUNNY 78 57 48 NW9 30.01S TC 26
WHEELING MOSUNNY 76 60 57 E6 30.02S TC 24
LANSING* MOSUNNY 76 60 57 NE7 30.02S TC 24
NORTHERLY ISL* N/A 74 61 63 NE5 N/A TC 23
LMZ740>746-180000-
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 75 140/ 6/ 10 1015.8F 1/ 5
WAUKEGAN HARBOR 74 75 120/ 6/ 10 1016.9F 1/ 6
WILMETTE BUOY 73 120/ 4/ 6 1020.0R 2/ 4
CHICAGO BUOY 74 74 1015.4F 2/ 4
HARRISON CRIB 74 50/ 4/ 5 N/A
NORTHERLY ISL 74 40/ 4/ 8 N/A
CALUMET HARBOR 73 40/ 5/ 7 1016.6
MICHIGAN CITY 77 20/ 8/ 9 1014.9S
MICH CITY BUOY 73 74 10/ 8/ 12 N/A 2/ 5
ST. JOSEPH BUOY 72 75 340/ 6/ 8 1017.1S 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-180000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 80 63 55 NW7 30.06F HX 81 TC 27
MACOMB* MOSUNNY 79 67 67 NW5 30.07F HX 81 TC 26
ILZ028>032-037-038-041>044-048-051>054-059>061-180000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 78 61 55 NW12 30.05S HX 80 TC 26
DECATUR MOSUNNY 79 61 53 N8 30.03F HX 80 TC 26
PEORIA MOSUNNY 79 60 52 NW6 30.04S HX 80 TC 26
SPRINGFIELD MOSUNNY 80 64 58 N6 30.04S HX 82 TC 27
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-180000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 77 64 64 NW12 30.02F TC 25
MATTOON MOSUNNY 79 62 56 NW13 30.01F HX 80 TC 26
ILZ079-100>102-180000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOSUNNY 82 64 54 NW10 30.04F HX 84 TC 28
CAHOKIA* PTSUNNY 81 65 58 N9 30.03F HX 83 TC 27
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-180000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 82 66 57 N12 30.01F HX 85 TC 28
MT. VERNON MOSUNNY 80 64 58 VRB6 30.02F HX 82 TC 27
CENTRALIA* MOSUNNY 80 64 58 CALM 30.03F HX 82 TC 27
SALEM* N/A 79 70 73 MISG 30.03F HX 81 TC 26
ILZ067-068-072-073-078-083-087-091-180000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 81 66 60 NW12 30.00S HX 83 TC 27
FAIRFIELD* MOSUNNY 80 65 59 N9 30.01F HX 82 TC 27
HARRISBURG* MOSUNNY 82 67 60 NW8 30.01F HX 85 TC 28
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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