125
ASUS43 KLOT 151601
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM CDT SAT AUG 15 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.
ILZ001-002-007-009-015-016-024-151700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 77 74 90 S6 30.04S TC 25
STERLING* CLOUDY 75 75 100 VRB3 30.07R TC 24
SAVANNA* CLOUDY 74 72 93 S3 30.06R TC 24
ILZ003-004-008-010-011-017-018-151700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 74 71 91 SE6 30.07R TC 23
FREEPORT* CLOUDY 73 71 95 SE5 30.08S TC 23
ILZ005-006-012>014-019>023-151700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 75 72 90 SE8 30.05F TC 24
CHICAGO-MIDWAY CLOUDY 75 72 90 SE8 30.05F TC 24
AURORA CLOUDY 74 73 97 S8 30.07R TC 23
JOLIET* CLOUDY 76 76 98 S6 30.07S TC 25
WAUKEGAN PTSUNNY 76 72 87 SE12 30.06F TC 24
DUPAGE AIRPORT LGT RAIN 74 73 97 S8 30.06R TC 23
WHEELING CLOUDY 75 72 90 SE7 30.07F TC 24
LANSING* N/A N/A N/A N/A MISG N/A
NORTHERLY ISL* N/A 73 71 93 E10 N/A TC 23
LMZ740>746-151700-
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 74 100/ 10/ 16 1022.2R 2/ 4
WAUKEGAN HARBOR 74 74 110/ 12/ 17 1018.5F 2/ 4
WILMETTE BUOY 74 130/ 12/ 16 1021.1F 2/ 4
CHICAGO BUOY 73 73 1017.2F 2/ 5
HARRISON CRIB 73 140/ 16/ 18 N/A
NORTHERLY ISL 72 160/ 8/ 9 N/A
CALUMET HARBOR 73 120/ 5/ 8 1018.5
MICHIGAN CITY 74 110/ 8/ 11 1017.8F
MICH CITY BUOY 73 73 130/ 8/ 10 N/A 1/ 5
ST. JOSEPH BUOY 73 74 160/ 10/ 12 1020.6S 1/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-151700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 78 74 87 S9 30.05S HX 81 TC 26
ILZ028>032-037-038-041>044-048-051>054-059>061-151700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTSUNNY 75 75 100 SW9 30.11R TC 24
DECATUR CLOUDY 77 73 87 SW7 30.11R TC 25
PEORIA LGT RAIN 76 74 93 S10 30.07R TC 24
LINCOLN* PTSUNNY 82 78 87 S7 30.09S HX 91 TC 28
SPRINGFIELD CLOUDY 78 74 87 S7 30.08R HX 81 TC 26
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-151700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 74 73 97 S6 30.12R TC 23
MATTOON PTSUNNY 75 73 93 SE8 30.11S TC 24
ILZ079-100>102-151700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 81 73 78 SE7 30.10F HX 85 TC 27
CAHOKIA* PTSUNNY 84 73 69 SE7 30.10F HX 90 TC 29
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-151700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
MT. VERNON PTSUNNY 82 74 76 NE9 30.14S HX 88 TC 28
CENTRALIA* PTSUNNY 84 73 68 CALM 30.14S HX 91 TC 29
ILZ067-068-072-073-078-083-087-091-151700-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTSUNNY 82 72 71 NE9 30.14F HX 87 TC 28
FAIRFIELD* PTSUNNY 83 74 76 NE8 30.13F HX 89 TC 28
HARRISBURG* PTSUNNY 87 77 72 NE14 30.14S HX 99 TC 31
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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