138
ASUS43 KLOT 150703
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 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.
ILZ001-002-007-009-015-016-024-150800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 73 72 96 E9 30.05F TC 23
STERLING* CLOUDY 72 72 100 E7 30.09S TC 22
SAVANNA* CLOUDY 72 68 89 E9 30.07F TC 22
ILZ003-004-008-010-011-017-018-150800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 70 65 84 E5 30.12R TC 21
FREEPORT* CLOUDY 70 68 95 E3 30.13S TC 21
ILZ005-006-012>014-019>023-150800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 73 68 84 E7 30.08F TC 23
CHICAGO-MIDWAY CLOUDY 74 69 85 E3 30.10R TC 23
AURORA LGT RAIN 72 69 90 E6 30.09F TC 22
JOLIET* MOCLDY 73 73 97 E5 30.10F TC 23
WAUKEGAN MOCLDY 73 68 84 E7 30.09F TC 23
DUPAGE AIRPORT CLOUDY 71 67 87 CALM 30.10F TC 22
WHEELING CLOUDY 74 68 81 E5 30.10F TC 23
LANSING* N/A N/A N/A N/A MISG N/A
NORTHERLY ISL* N/A 73 70 90 E5 N/A TC 23
LMZ740>746-150800-
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 50/ 12/ 16 1017.6R 3/ 5
WAUKEGAN HARBOR 75 74 10/ 12/ 16 1019.5 2/ 5
WILMETTE BUOY 75 100/ 14/ 17 1021.8F 3/ 5
CHICAGO BUOY 75 73 1018.0F 2/ 4
HARRISON CRIB 75 70/ 10/ 11 N/A
NORTHERLY ISL 72 30/ 6/ 7 N/A
CALUMET HARBOR 73 50/ 3/ 5 1019.1
MICHIGAN CITY 73 80/ 5/ 6 1017.2F
MICH CITY BUOY 73 74 70/ 8/ 12 N/A 1/ 4
ST. JOSEPH BUOY 74 75 90/ 6/ 6 1019.8F 1/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-150800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOCLDY 77 75 93 E6 30.00S TC 25
MACOMB* RAIN 73 73 100 E9 30.07F TC 23
ILZ028>032-037-038-041>044-048-051>054-059>061-150800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON FOG 72 32 23 S6 30.13F THUNDER VSB 1/2
DECATUR PTCLDY 74 72 93 SE7 30.07F TC 23
PEORIA LGT RAIN 73 72 96 SE6 30.06F TC 23
LINCOLN* CLOUDY 75 75 100 NE9 30.08R TC 24
SPRINGFIELD MOCLDY 76 73 91 E10 30.04S TC 24
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-150800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 73 73 100 E8 30.09F TC 23
MATTOON PTCLDY 75 71 87 SE8 30.06F TC 24
ILZ079-100>102-150800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* CLEAR 78 75 90 CALM 30.00S HX 81 TC 26
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-150800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
MARION CLEAR 78 77 98 S3 30.06F HX 80 TC 25
MT. VERNON CLEAR 79 77 94 CALM 30.05F HX 83 TC 26
CENTRALIA* CLEAR 78 77 97 CALM 30.05S HX 80 TC 26
SALEM* N/A 79 78 96 MISG 30.05F HX 83 TC 26
ILZ067-068-072-073-078-083-087-091-150800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 77 72 84 SE5 30.07F TC 25
FAIRFIELD* CLEAR 78 75 92 SE3 30.06F HX 80 TC 26
HARRISBURG* CLEAR 75 75 100 CALM 30.06F FOG TC 24
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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