117
ASUS43 KLOT 211101
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 AM CDT TUE JUL 21 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.
ILZ001-002-007-009-015-016-024-211200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 74 69 85 W9 29.73S TC 23
STERLING* CLEAR 71 71 100 W10 29.73R TC 22
SAVANNA* PTCLDY 72 67 86 W8 29.72S TC 22
ILZ003-004-008-010-011-017-018-211200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 71 68 90 W8 29.70S TC 22
FREEPORT* CLEAR 70 69 96 W8 29.73R TC 21
ILZ005-006-012>014-019>023-211200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 74 69 85 W5 29.68R TC 23
CHICAGO-MIDWAY MOCLDY 74 71 91 W7 29.68R TC 23
AURORA MOCLDY N/A N/A N/A W5 29.70R
JOLIET* CLOUDY 75 74 95 NW3 29.69F TC 24
WAUKEGAN CLEAR 72 68 87 W6 29.65S TC 22
DUPAGE AIRPORT MOCLDY 72 70 93 W6 29.69R TC 22
KANKAKEE* PTCLDY 75 73 95 W9 29.72S TC 24
WHEELING PTCLDY 75 68 78 W6 29.68R TC 24
LANSING* PTCLDY 74 71 88 W8 29.69R TC 24
NORTHERLY ISL* N/A 75 69 81 W14 N/A TC 24
LMZ740>746-211200-
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 70 62 1005.3R 1
WAUKEGAN HARBOR 70 60 1006.0R 0
WILMETTE BUOY 76 320/ 10/ 14 1007.7R 1/ 2
CHICAGO BUOY 77 75 270/ 8/ 10 1003.8R 1
HARRISON CRIB 76 260/ 13/ 14 N/A
NORTHERLY ISL 75 260/ 8/ 9 N/A
CALUMET HARBOR 76 220/ 4/ 9 1004.8
BURNS HARBOR 1005.1S
MICHIGAN CITY 77 250/ 14/ 15 1002.0F
MICH CITY BUOY 76 76 270/ 12/ 16 N/A 2/ 3
ST. JOSEPH BUOY 76 74 250/ 12/ 16 1005.2R 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-211200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOCLDY 75 72 90 NW13 29.80R TC 24
MACOMB* PTCLDY 74 73 98 W12 29.80S TC 23
ILZ028>032-037-038-041>044-048-051>054-059>061-211200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLOUDY 77 73 87 NW16 29.77R TC 25
DECATUR CLOUDY 79 73 82 W9 29.78R HX 82 TC 26
PEORIA MOCLDY 76 71 85 W7 29.75R TC 24
SPRINGFIELD CLOUDY 76 73 91 VRB3 29.78R TC 24
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-211200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 74 73 97 W3 29.76S HAZE TC 23
DANVILLE* CLOUDY 77 73 88 SW6 29.76R TC 25
MATTOON CLOUDY 77 74 90 S9 29.75F TC 25
ILZ079-100>102-211200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* MOCLDY 82 75 79 CALM 29.77R HX 89 TC 28
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-211200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* MOCLDY 80 80 100 CALM 29.83S HX 86 TC 27
MARION CLOUDY 78 77 98 S9 29.80F HX 80 TC 25
MT. VERNON CLOUDY 79 76 90 S6 29.80R HX 83 TC 26
CENTRALIA* MOCLDY 79 75 89 CALM 29.79F HX 82 TC 26
SALEM* MOCLDY 80 76 87 MISG 29.79S HX 87 TC 27
ILZ067-068-072-073-078-083-087-091-211200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 75 74 96 S5 29.78S TC 24
FLORA* MOCLDY 77 N/A N/A S8 29.79S TC 25
FAIRFIELD* CLOUDY 77 75 93 S6 29.79R TC 25
HARRISBURG* MOCLDY 78 77 98 S3 29.81F TC 25
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page