492
ASUS43 KLOT 270410
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM CDT SUN JUL 26 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.
ILZ001-002-007-009-015-016-024-270500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 81 79 94 NE5 29.82R HX 90 TC 27
STERLING* PTCLDY 80 80 100 SE6 29.83F HX 89 TC 27
SAVANNA* PTCLDY 81 80 96 SE6 29.81F FOG HX 90
ILZ003-004-008-010-011-017-018-270500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 80 79 96 SE5 29.85F HX 88 TC 27
FREEPORT* CLEAR 79 78 96 S5 29.86F HX 84 TC 26
ROCHELLE* N/A 76 74 94 SE6 29.86F FOG TC 25
DE KALB* CLEAR 77 77 100 S7 29.88F FOG TC 25
PERU* PTCLDY 81 79 94 SE6 29.84F FOG HX 89
ILZ005-006-012>014-019>023-270500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 83 77 82 SW7 29.85S HX 92 TC 28
CHICAGO-MIDWAY PTCLDY 82 77 84 SW9 29.86F HX 90 TC 28
AURORA CLEAR N/A N/A N/A S3 29.86F HAZE
JOLIET* CLEAR 80 80 100 CALM 29.88R HX 86 TC 27
WAUKEGAN PTCLDY 78 74 87 SW5 29.84F HX 81 TC 26
DUPAGE AIRPORT MOCLDY 80 78 94 S3 29.87S HX 88 TC 27
KANKAKEE* CLEAR 76 74 95 SE3 29.89S TC 25
WHEELING CLEAR 83 77 82 SW8 29.86F HX 92 TC 28
ROMEOVILLE* CLOUDY 79 79 100 S5 29.88S HX 83 TC 26
LANSING* MOCLDY 75 74 95 S5 29.88F TC 24
NORTHERLY ISL* N/A 82 74 76 SW8 N/A HX 88 TC 28
LMZ740>746-270500-
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 73 70 1010.7 1
WAUKEGAN HARBOR 75 73 1011.7 0
WILMETTE BUOY 77 190/ 4/ 6 1013.9F 1
CHICAGO BUOY 78 75 190/ 6 1010.2 0
HARRISON CRIB 83 200/ 10/ 11 N/A
NORTHERLY ISL 83 200/ 7/ 10 N/A
CALUMET HARBOR 81 180/ 5/ 7 1011.6S
BURNS HARBOR 1012.2S
MICHIGAN CITY 80 170/ 6/ 7 1009.5S
MICH CITY BUOY 77 75 190/ 6/ 6 N/A 0
ST. JOSEPH BUOY 78 77 180/ 6/ 8 1012.0F 0
ILZ025>027-034>036-040-047-049-050-058-095>099-270500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 83 80 91 E3 29.88R HX 95 TC 28
GALESBURG* MOCLDY 82 79 91 SE5 29.85F HX 91 TC 28
MACOMB* PTCLDY 82 82 100 CALM 29.88F HX 97 TC 28
JACKSONVILLE* PTCLDY 83 83 100 CALM 29.88S HX 99 TC 28
ILZ028>032-037-038-041>044-048-051>054-059>061-270500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 75 75 100 MISG 29.88F FOG TC 24
BLOOMINGTON MOCLDY 77 N/A N/A S7 29.90S FOG TC 25
DECATUR PTCLDY 78 77 96 SE5 29.89S FOG HX 81
PEORIA MOCLDY 83 81 94 SE5 29.85F HX 97 TC 28
LACON* MOCLDY 80 77 92 CALM 29.84F HX 85 TC 27
LINCOLN* PTCLDY 82 82 100 S3 29.88S FOG HX 94
SPRINGFIELD MOCLDY 83 82 97 SE5 29.88R HX 98 TC 28
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-270500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 74 74 100 E5 29.90S FOG TC 23
DANVILLE* CLOUDY 74 74 97 CALM 29.90F TC 24
MATTOON MOCLDY 78 77 96 SE5 29.89S FOG HX 81
PARIS* PTCLDY 74 73 98 E3 29.91S FOG TC 23
ILZ079-100>102-270500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 83 80 90 CALM 29.88S HX 96 TC 29
CAHOKIA* PTCLDY 85 79 82 CALM 29.87R HX 98 TC 29
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-270500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* PTCLDY 83 79 88 SE8 29.91F HX 93 TC 28
EFFINGHAM* CLEAR 77 77 99 CALM 29.91S FOG TC 25
MARION CLEAR 81 80 95 S5 29.89S HX 91 TC 27
MT. VERNON CLEAR 75 74 96 CALM 29.88F TC 24
CENTRALIA* PTCLDY 79 75 87 CALM 29.88F HX 82 TC 26
SALEM* PTCLDY 78 73 86 MISG 29.88S HX 80 TC 26
METROPOLIS* MOCLDY 77 70 78 S3 29.91F TC 25
ILZ067-068-072-073-078-083-087-091-270500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
FLORA* CLEAR 75 N/A N/A E3 29.89R TC 24
FAIRFIELD* MOCLDY 74 71 89 CALM 29.88F TC 24
HARRISBURG* PTCLDY 74 74 100 CALM 29.89F TC 23
ROBINSON* MOCLDY 75 75 100 N5 29.89R FOG TC 24
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