620
ASUS43 KLOT 152201
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 PM 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.
ILZ001-002-007-009-015-016-024-152300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 86 77 74 SW9 29.99S HX 97 TC 30
STERLING* CLOUDY 82 77 84 NW3 30.03R HX 90 TC 28
SAVANNA* CLOUDY 78 75 89 CALM 30.02S HX 81 TC 26
ILZ003-004-008-010-011-017-018-152300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD LGT RAIN 78 75 90 S3 30.04R FOG HX 81
FREEPORT* CLOUDY 77 76 95 CALM 30.05R TC 25
ILZ005-006-012>014-019>023-152300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 77 74 90 CALM 30.02S TC 25
CHICAGO-MIDWAY PTSUNNY 79 74 84 SW9 30.02F HX 82 TC 26
AURORA CLOUDY 80 76 87 SE5 30.02S HX 86 TC 27
JOLIET* CLOUDY 82 78 90 S5 30.03S HX 91 TC 28
WAUKEGAN CLOUDY 75 73 93 SE5 30.03R TC 24
DUPAGE AIRPORT CLOUDY 78 75 90 SE3 30.03S HX 81 TC 26
WHEELING CLOUDY 76 74 93 CALM 30.04S FOG TC 24
LANSING* N/A N/A N/A N/A MISG N/A
NORTHERLY ISL* N/A 76 72 87 W2 N/A TC 24
LMZ740>746-152300-
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 90/ 8/ 10 1019.2F 2/ 4
WAUKEGAN HARBOR 74 74 130/ 6/ 8 1017.3S 2/ 4
WILMETTE BUOY 74 140/ 6/ 8 1019.7F 2/ 4
CHICAGO BUOY 75 73 1015.6F 1/ 4
HARRISON CRIB 75 110/ 6/ 7 N/A
NORTHERLY ISL 79 270/ 5/ 7 N/A
CALUMET HARBOR 77 180/ 7/ 9 1016.9F
MICHIGAN CITY 80 190/ 9/ 12 1015.2S
MICH CITY BUOY 77 74 230/ 2/ 4 N/A 1
ST. JOSEPH BUOY 75 75 30/ 4/ 4 1017.9F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-152300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 86 77 74 SW8 30.01S HX 97 TC 30
ILZ028>032-037-038-041>044-048-051>054-059>061-152300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTSUNNY 82 78 88 S9 30.06S HX 91 TC 28
DECATUR PTSUNNY 85 76 74 S10 30.05S HX 94 TC 29
PEORIA PTSUNNY 83 77 82 S7 30.02S HX 92 TC 28
LINCOLN* PTSUNNY 85 79 81 S6 30.03S HX 98 TC 30
SPRINGFIELD PTSUNNY 87 77 72 S8G18 30.02S HX 99 TC 31
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-152300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 83 75 77 S6 30.06S HX 90 TC 28
MATTOON PTSUNNY 83 76 79 S8 30.06S HX 91 TC 28
ILZ079-100>102-152300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 86 77 74 S12 30.03F HX 97 TC 30
CAHOKIA* MOSUNNY 93 77 59 S9 30.02F HX 107 TC 34
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-152300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 93 75 55 S10 30.05F HX 104 TC 34
MT. VERNON SUNNY 96 75 50 SW9 30.05F HX 108 TC 36
CENTRALIA* MOSUNNY 94 75 53 CALM 30.05S HX 105 TC 35
ILZ067-068-072-073-078-083-087-091-152300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 93 74 53 S12 30.04F HX 103 TC 34
FAIRFIELD* SUNNY 92 75 57 S8 30.05F HX 103 TC 33
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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