737
ASUS43 KLOT 280706
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 AM CDT TUE JUL 28 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.
ILZ001-002-007-009-015-016-024-280800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 80 71 74 NW7G18 29.73S HX 84 TC 27
STERLING* CLEAR 78 73 84 NW7 29.72S HX 81 TC 26
SAVANNA* CLEAR 77 71 83 NW8 29.73S TC 25
ILZ003-004-008-010-011-017-018-280800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 76 72 87 N7 29.72R TC 24
FREEPORT* CLEAR 76 73 91 N8 29.75R TC 24
ROCHELLE* CLEAR 74 72 93 NW8 29.72R TC 23
DE KALB* CLEAR 74 74 99 NW7 29.72R TC 24
PERU* CLEAR 77 73 88 W7 29.70S TC 25
ILZ005-006-012>014-019>023-280800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 74 72 93 N8 29.68S TC 23
CHICAGO-MIDWAY PTCLDY 74 73 97 N7 29.68S TC 23
AURORA CLEAR N/A N/A N/A NW3 29.69R HAZE
JOLIET* FOG 73 73 100 CALM 29.67S VSB 1/4 TC 23
WAUKEGAN N/A N/A N/A N/A MISG 29.70S
DUPAGE AIRPORT CLEAR 73 73 100 N7 29.69R TC 23
KANKAKEE* PTCLDY 72 70 95 CALM 29.68F TC 22
WHEELING CLEAR 73 72 96 N3 29.71S TC 23
ROMEOVILLE* FOG 72 72 100 CALM 29.69S VSB 1/4 TC 22
NORTHERLY ISL* N/A 74 70 87 MISG N/A TC 23
LMZ740>746-280800-
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 62 52 994.4 1/ 5
WAUKEGAN HARBOR 65 66 1007.5 1/ 4
WILMETTE BUOY 68 30/ 6/ 8 1008.2F 1/ 4
CHICAGO BUOY 73 72 340/ 10 1004.5 1
HARRISON CRIB 73 340/ 11/ 12 N/A
NORTHERLY ISL 76 280/ 8/ 12 N/A
CALUMET HARBOR 74 270/ 1/ 4 1005.1
BURNS HARBOR 1005.8R
MICHIGAN CITY 75 290/ 9/ 10 1003.2S
MICH CITY BUOY 74 74 310/ 6/ 10 N/A 1/ 3
ST. JOSEPH BUOY 72 71 270/ 2/ 2 1005.5F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-280800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 78 75 90 NW6 29.77R HX 81 TC 26
GALESBURG* CLEAR 76 74 96 NW5 29.75F TC 24
MACOMB* PTCLDY 77 77 99 CALM 29.77S TC 25
JACKSONVILLE* PTCLDY 79 75 87 W7 29.75S HX 83 TC 26
ILZ028>032-037-038-041>044-048-051>054-059>061-280800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 78 78 100 MISG 29.69S HX 81 TC 26
BLOOMINGTON CLEAR 79 78 97 W9 29.72F HX 83 TC 26
DECATUR CLEAR 79 74 84 W9 29.71F HX 82 TC 26
PEORIA CLEAR 80 76 87 NW5 29.71S HX 86 TC 27
LACON* CLEAR 78 73 83 CALM 29.70S HX 81 TC 26
LINCOLN* CLEAR 82 76 81 W5 29.71F HX 90 TC 28
SPRINGFIELD CLEAR 79 74 84 W8 29.72F HX 82 TC 26
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-280800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 76 74 93 SW7 29.70F TC 24
DANVILLE* CLEAR 77 74 90 SW7 29.70F TC 25
MATTOON CLEAR 80 74 81 SW9G20 29.70F HX 85 TC 27
PARIS* MOCLDY 78 76 93 SW7 29.70F HX 81 TC 26
ILZ079-100>102-280800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 79 75 87 W3 29.75F HX 83 TC 26
BELLEVILLE CLEAR 82 77 82 SW7 29.72F HX 90 TC 28
CAHOKIA* CLEAR 81 75 82 SW5 29.74F HX 87 TC 27
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-280800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* PTCLDY 84 79 86 SW5 29.79F HX 96 TC 29
EFFINGHAM* PTCLDY 78 77 97 SW6 29.73F HX 80 TC 26
MARION CLEAR 83 80 91 SW5 29.78F HX 94 TC 28
MT. VERNON CLEAR 80 79 96 SW3 29.76F HX 88 TC 27
CENTRALIA* PTCLDY 79 76 90 CALM 29.74F HX 82 TC 26
SALEM* PTCLDY 78 76 94 MISG 29.74F HX 81 TC 26
METROPOLIS* CLEAR 83 77 84 SW6 29.79F HX 91 TC 28
ILZ067-068-072-073-078-083-087-091-280800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
FAIRFIELD* CLEAR 81 78 91 SW7 29.74F HX 88 TC 27
HARRISBURG* CLEAR 83 81 93 SW7 29.77F HX 96 TC 28
ROBINSON* PTCLDY 81 81 100 SW7 29.70F FOG HX 91
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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