452
ASUS43 KLOT 191701
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 PM CDT WED AUG 19 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.
ILZ001-002-007-009-015-016-024-191800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 81 71 71 CALM 29.95R HX 85 TC 27
STERLING* MOSUNNY 81 67 62 VRB6 29.97R HX 83 TC 27
SAVANNA* SUNNY 79 67 67 CALM 29.96S HX 81 TC 26
ILZ003-004-008-010-011-017-018-191800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 78 66 66 N5 29.98S HX 80 TC 26
FREEPORT* MOSUNNY 77 69 76 NE3 29.99S TC 25
ILZ005-006-012>014-019>023-191800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 77 66 68 VRB3 29.96R TC 25
CHICAGO-MIDWAY PTSUNNY 79 68 69 VRB6 29.96R HX 81 TC 26
AURORA MOSUNNY 78 67 68 VRB3 29.96R HX 80 TC 26
JOLIET* MOSUNNY 81 65 57 CALM 29.96S HX 83 TC 27
WAUKEGAN PTSUNNY 73 66 78 VRB6 29.96S TC 23
DUPAGE AIRPORT SUNNY 79 65 62 CALM 29.96R HX 81 TC 26
WHEELING PTSUNNY 76 67 73 E6 29.98S TC 24
LANSING* PTSUNNY 79 66 65 E3 29.96S HX 81 TC 26
NORTHERLY ISL* N/A 76 68 76 NE6 N/A TC 24
LMZ740>746-191800-
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 71 73 350/ 8/ 10 1019.8F 1/ 3
WAUKEGAN HARBOR 72 74 10/ 10/ 14 1015.6R 1/ 3
WILMETTE BUOY 72 70/ 6/ 8 1018.1R 1
CHICAGO BUOY 72 74 1013.6F 1/ 3
NORTHERLY ISL 75 30/ 4/ 7 N/A
CALUMET HARBOR 73 30/ 4/ 7 1014.8R
MICH CITY BUOY 72 74 40/ 6/ 8 N/A 1/ 4
ST. JOSEPH BUOY 72 75 10/ 4/ 6 1015.4S 1/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-191800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 76 71 85 SE3 29.95R TC 24
MACOMB* CLOUDY 79 74 85 CALM 29.97R HX 83 TC 26
ILZ028>032-037-038-041>044-048-051>054-059>061-191800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTSUNNY 80 71 74 E6 29.97F HX 84 TC 27
DECATUR MOSUNNY 80 71 74 CALM 29.96F HX 84 TC 27
PEORIA PTSUNNY 81 71 71 CALM 29.94F HX 85 TC 27
SPRINGFIELD PTSUNNY 80 70 71 CALM 29.94F HX 83 TC 27
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-191800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 81 71 71 S7 29.96F HX 85 TC 27
MATTOON CLOUDY 77 71 82 S7 29.97F TC 25
ILZ079-100>102-191800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOSUNNY 79 72 78 SW7 29.96S HX 82 TC 26
CAHOKIA* PTSUNNY 80 70 71 S7 29.94F HX 83 TC 27
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-191800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE PTSUNNY 72 70 94 S9 29.98F TC 22
MT. VERNON PTSUNNY 82 71 69 SW20 29.97F HX 86 TC 28
CENTRALIA* PTSUNNY 82 71 69 SW13G20 29.97F HX 86 TC 28
SALEM* N/A 83 72 69 MISG 29.96F HX 88 TC 28
ILZ067-068-072-073-078-083-087-091-191800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 74 69 85 SW7 29.99F TC 23
FAIRFIELD* PTSUNNY 78 70 76 SW12 29.98F HX 80 TC 26
HARRISBURG* MOSUNNY 73 70 92 SW6 29.99F TC 23
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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