477
ASUS43 KLOT 151903
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 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.
ILZ001-002-007-009-015-016-024-152000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 84 76 76 S6 29.99F HX 93 TC 29
STERLING* CLOUDY 79 76 90 SW6 30.03F HX 83 TC 26
SAVANNA* CLOUDY 78 74 88 SW3 30.03S HX 80 TC 25
ILZ003-004-008-010-011-017-018-152000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD DRIZZLE 75 74 96 S3 30.05S FOG TC 24
FREEPORT* CLOUDY 76 74 95 CALM 30.05F TC 24
ILZ005-006-012>014-019>023-152000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 77 73 87 CALM 30.04F TC 25
CHICAGO-MIDWAY CLOUDY 80 73 79 SW8 30.03F HX 84 TC 27
AURORA CLOUDY 77 75 93 S3 30.04F TC 25
JOLIET* CLOUDY 81 76 83 S5 30.04F HX 87 TC 27
WAUKEGAN CLOUDY 73 73 100 SE5 30.05S FOG TC 23
DUPAGE AIRPORT CLOUDY 76 74 93 S8 30.04F FOG TC 24
WHEELING CLOUDY 75 74 96 S3 30.06F FOG TC 24
LANSING* N/A N/A N/A N/A MISG N/A
NORTHERLY ISL* N/A 78 71 79 SW5 N/A HX 80 TC 26
LMZ740>746-152000-
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/ 12 1017.9F 2/ 3
WAUKEGAN HARBOR 73 74 130/ 8/ 12 1017.8F 2/ 3
WILMETTE BUOY 73 150/ 8/ 10 1020.6F 2/ 3
CHICAGO BUOY 75 73 1016.3F 2/ 3
HARRISON CRIB 76 140/ 6/ 6 N/A
NORTHERLY ISL 77 200/ 4/ 10 N/A
CALUMET HARBOR 77 160/ 6/ 11 1017.4F
MICHIGAN CITY 78 190/ 10/ 12 1016.1F
MICH CITY BUOY 76 74 200/ 6/ 10 N/A 1/ 5
ST. JOSEPH BUOY 76 74 180/ 8/ 12 1018.7S 1
ILZ025>027-034>036-040-047-049-050-058-095>099-152000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 88 76 67 SW17G25 30.02F HX 99 TC 31
MACOMB* MOSUNNY 82 80 94 S7 30.05S HX 92 TC 28
ILZ028>032-037-038-041>044-048-051>054-059>061-152000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 79 77 94 SW5 30.08R HX 83 TC 26
DECATUR PTSUNNY 83 74 74 S13 30.06F HX 89 TC 28
PEORIA LGT RAIN 79 75 87 S6 30.04F HX 83 TC 26
LINCOLN* LGT RAIN 83 77 81 S3 30.05F HX 91 TC 28
SPRINGFIELD MOSUNNY 83 76 79 S9 30.05F HX 91 TC 28
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-152000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 81 75 82 VRB7 30.07F HX 87 TC 27
MATTOON PTSUNNY 83 74 74 S8 30.08F HX 89 TC 28
ILZ079-100>102-152000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 88 75 66 S13 30.09S HX 97 TC 31
CAHOKIA* PTSUNNY 88 76 67 VRB5 30.07S HX 99 TC 31
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-152000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 93 75 55 VRB6 30.09F HX 104 TC 34
MT. VERNON PTSUNNY 92 74 55 VRB3 30.09F HX 101 TC 33
CENTRALIA* PTSUNNY 85 74 68 SE8 30.09F HX 93 TC 30
SALEM* N/A 85 77 77 MISG 30.10F HX 94 TC 29
ILZ067-068-072-073-078-083-087-091-152000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTSUNNY 86 74 67 VRB5 30.09F HX 94 TC 30
FAIRFIELD* PTSUNNY 91 74 56 SE3 30.09F HX 100 TC 33
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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