010
ASUS43 KLOT 201110
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 AM CDT WED AUG 20 2025
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.
ILZ001-002-007-009-015-016-024-201200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 68 67 96 CALM 30.05R TC 20
ILZ003-004-008-010-011-017-018-201200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 67 66 97 CALM 30.08S TC 19
ROCHELLE* CLEAR 62 61 94 CALM 30.08R TC 17
DE KALB* FOG 64 64 100 NE7 30.08R VSB 3/4 TC 18
PERU* FOG 66 66 100 CALM 30.07R VSB 3/4 TC 19
ILZ005-006-012>014-019>023-201200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 68 66 93 N10 30.05R TC 20
CHICAGO-MIDWAY PTCLDY 70 65 84 N7 30.05R TC 21
AURORA CLEAR 63 62 97 CALM 30.06R TC 17
JOLIET* CLEAR 68 68 100 CALM 30.06S TC 20
WAUKEGAN CLEAR 68 64 87 N3 30.07R TC 20
DUPAGE AIRPORT CLEAR 65 63 93 N6 30.06R TC 18
KANKAKEE* CLEAR 66 64 94 CALM 30.07S TC 19
WHEELING CLEAR 67 66 97 N5 30.07S TC 19
MORRIS* CLEAR 66 66 100 CALM 30.05R FOG TC 19
ROMEOVILLE* CLEAR 68 68 100 N7 30.06S TC 20
LANSING* CLOUDY 69 68 97 CALM 30.06R TC 21
NORTHERLY ISL* N/A 70 65 84 N12 N/A TC 21
LMZ740>746-201200-
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)
S. MID LAKE BUOY 71 74 350/ 17/ 19 1017.5R 3/ 4
WINTHROP HARBOR 70 70 290/ 10/ 14 N/A 3/ 5
WAUKEGAN HARBOR 69 74 270/ 8/ 10 N/A 2/ 5
WILMETTE BUOY 72 30/ 14/ 17 1019.6R 3/ 5
NORTHERLY ISL 70 340/ 6/ 10 N/A
CALUMET HARBOR 71 320/ 6/ 9 1016.3
BURNS HARBOR 72 10/ 9/ 11 1017.6R
MICHIGAN CITY 72 10/ 18/ 19 1015.4R
MICH CITY BUOY 73 76 350/ 16/ 19 1015.5R 5/ 6
ST. JOSEPH BUOY 71 72 320/ 17/ 21 1017.5R 4/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-201200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 68 67 96 N3 30.07R TC 20
GALESBURG* FOG 63 63 100 CALM 30.08S VSB 1/2 TC 17
MACOMB* CLEAR 65 65 100 CALM 30.08S TC 18
JACKSONVILLE* CLEAR 66 65 97 N3 30.06R TC 19
PITTSFIELD* CLEAR 69 68 98 CALM 30.07R TC 21
ILZ028>032-037-038-041>044-048-051>054-059>061-201200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC FOG 65 64 97 CALM 30.07R VSB 1/2 TC 18
BLOOMINGTON FOG 67 67 100 N3 30.08R VSB 1/4 TC 19
DECATUR CLEAR 68 66 93 CALM 30.05R TC 20
PEORIA CLEAR 68 67 96 CALM 30.06R TC 20
LACON* CLEAR 65 64 94 CALM 30.05S TC 19
LINCOLN* CLEAR 67 67 100 CALM 30.06R TC 19
SPRINGFIELD CLEAR 65 65 100 CALM 30.05R TC 18
TAYLORVILLE PTCLDY 66 66 100 N5 30.05S TC 19
ILZ033-039-045-046-055>057-062-063-201200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN FOG 65 64 97 NW5 30.05R VSB 3/4 TC 18
DANVILLE* PTCLDY 67 66 97 N5 30.04S TC 19
RANTOUL* CLEAR 68 67 96 N7 30.06R TC 20
MATTOON PTCLDY 68 67 96 N5 30.03S TC 20
PARIS* MOCLDY 65 65 97 W3 30.04S TC 19
ILZ079-100>102-201200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 70 68 94 NW3 30.04R TC 21
BELLEVILLE PTCLDY 72 69 92 N8 30.00R TC 22
CAHOKIA* MOCLDY 73 70 90 N6 30.02R TC 23
SPARTA* PTCLDY 73 71 95 NE5 30.02R TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOCLDY 72 71 97 CALM 29.99R TC 22
CAIRO* MOCLDY 73 73 98 CALM 29.99R TC 23
EFFINGHAM* MOCLDY 70 70 100 N5 30.04S TC 21
MARION CLOUDY 73 72 96 NE5 30.01R TC 23
MT. VERNON PTCLDY 71 70 96 NE6 30.01R TC 22
CENTRALIA* PTCLDY 71 69 95 NE3 30.01R TC 22
SALEM* PTCLDY 72 69 91 NE5 30.01S TC 22
METROPOLIS* MOCLDY 74 73 96 CALM 29.99R TC 23
ILZ067-068-072-073-078-083-087-091-201200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 70 68 93 NE3 30.00S TC 21
FLORA* PTCLDY 70 N/A N/A N5 30.01S TC 21
FAIRFIELD* PTCLDY 71 70 96 N5 30.00R TC 22
HARRISBURG* CLOUDY 74 72 93 NE3 30.00R TC 23
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