804
ASUS43 KLOT 150501
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 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.
ILZ001-002-007-009-015-016-024-150600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 73 72 96 E7 30.06F TC 23
STERLING* CLOUDY 73 73 100 E7 30.11S TC 23
SAVANNA* CLOUDY 73 70 89 E7 30.11F TC 23
ILZ003-004-008-010-011-017-018-150600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 71 67 87 NE3 30.13F TC 22
FREEPORT* CLOUDY 72 70 95 E3 30.15F TC 22
ILZ005-006-012>014-019>023-150600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 74 67 78 NE9 30.13F TC 23
CHICAGO-MIDWAY CLOUDY 75 67 76 E5 30.13S TC 24
AURORA CLOUDY 72 69 90 E9 30.12F TC 22
WAUKEGAN CLOUDY 72 67 84 NE5 30.14S TC 22
DUPAGE AIRPORT CLOUDY 72 68 87 NE6 30.13F TC 22
WHEELING MOCLDY 73 67 81 NE3 30.15F TC 23
LANSING* N/A N/A N/A N/A MISG N/A
NORTHERLY ISL* N/A 73 69 87 N2 N/A TC 23
LMZ740>746-150600-
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 75 74 20/ 12/ 16 1016.7R 3/ 5
WAUKEGAN HARBOR 75 74 360/ 12/ 16 1020.5 2/ 4
WILMETTE BUOY 75 70/ 8/ 14 1023.5F 3/ 4
CHICAGO BUOY 75 73 1019.3F 2/ 4
HARRISON CRIB 75 40/ 7/ 8 N/A
NORTHERLY ISL 72 10/ 6/ 6 N/A
CALUMET HARBOR 73 350/ 5/ 7 1020.5
MICHIGAN CITY 74 80/ 2/ 2 1019.0F
MICH CITY BUOY 74 74 70/ 2/ 4 N/A 1/ 4
ST. JOSEPH BUOY 74 74 CALM 1021.4F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-150600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOCLDY 77 75 93 E9 29.99F TC 25
ILZ028>032-037-038-041>044-048-051>054-059>061-150600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLOUDY 73 73 100 E9 30.10F TC 23
DECATUR PTCLDY 75 72 90 SE8 30.08F TC 24
PEORIA CLOUDY 74 72 93 E8 30.07F THUNDER TC 23
LINCOLN* PTCLDY 76 76 100 SE6 30.06F THUNDER TC 24
SPRINGFIELD PTCLDY 76 73 91 SE8 30.04F TC 24
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-150600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 73 73 100 E8 30.10F TC 23
MATTOON PTCLDY 75 71 87 SE7 30.09F TC 24
ILZ079-100>102-150600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* CLEAR 80 77 90 SE5 30.02F HX 87 TC 27
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-150600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
MT. VERNON CLEAR 79 77 94 NE3 30.08R HX 83 TC 26
ILZ067-068-072-073-078-083-087-091-150600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 77 73 87 E3 30.10S TC 25
FAIRFIELD* CLEAR 80 75 84 E6 30.08S HX 85 TC 27
HARRISBURG* CLEAR 77 76 99 CALM 30.08R TC 25
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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