659
ASUS43 KLOT 180511
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 AM CDT MON AUG 18 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.
ILZ001-002-007-009-015-016-024-180600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 75 73 93 E9 30.03F TC 24
ILZ003-004-008-010-011-017-018-180600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 70 66 87 NE7 30.09S TC 21
ROCHELLE* MOCLDY 70 65 84 E6 30.08F TC 21
DE KALB* CLOUDY 69 67 93 NE8 30.09F TC 21
PERU* PTCLDY 73 70 93 E6 30.06F TC 23
ILZ005-006-012>014-019>023-180600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 73 68 84 NE9 30.08R TC 23
CHICAGO-MIDWAY PTCLDY 75 68 78 E7 30.07S TC 24
AURORA CLOUDY 72 67 84 E7 30.07F TC 22
JOLIET* CLOUDY 74 70 86 CALM 30.07F TC 24
WAUKEGAN CLEAR 71 66 84 NE3 30.08S TC 22
DUPAGE AIRPORT PTCLDY 71 67 87 NE6 30.08R TC 22
KANKAKEE* PTCLDY 72 70 94 E6 30.08F TC 22
WHEELING PTCLDY 73 68 84 MISG 30.10R TC 23
MORRIS* MOCLDY 71 71 98 CALM 30.06F TC 22
ROMEOVILLE* CLOUDY 72 70 94 NE7 30.08S TC 22
LANSING* CLEAR 73 69 90 NE5 30.08S TC 23
NORTHERLY ISL* N/A 73 68 84 NE7 N/A TC 23
LMZ740>746-180600-
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 74 76 100/ 17/ 19 1019.1R 3/ 5
WINTHROP HARBOR 74 75 320/ 10/ 14 N/A 3/ 6
WAUKEGAN HARBOR 74 76 10/ 10/ 14 N/A 2/ 6
WILMETTE BUOY 75 40/ 12/ 16 1021.1R 3/ 5
NORTHERLY ISL 73 20/ 6/ 8 N/A
CALUMET HARBOR 74 30/ 5/ 7 1017.5
BURNS HARBOR 76 50/ 6/ 7 1019.0R
MICHIGAN CITY 76 40/ 9/ 11 1016.9R
MICH CITY BUOY 76 78 40/ 8/ 10 1017.2R 3/ 6
ST. JOSEPH BUOY 75 78 60/ 12/ 16 1019.3R 2/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-180600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 76 72 87 E3 30.01S TC 24
GALESBURG* PTCLDY 78 78 99 E5 30.04S HX 81 TC 26
MACOMB* MOCLDY 74 74 99 CALM 30.04S FOG TC 23
JACKSONVILLE* CLEAR 76 76 98 E3 30.02S TC 25
PITTSFIELD* CLEAR 74 74 98 CALM 30.03S TC 24
ILZ028>032-037-038-041>044-048-051>054-059>061-180600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOCLDY 72 71 98 E9 30.06S THUNDER TC 22
BLOOMINGTON PTCLDY 76 76 100 E10 30.07S TC 24
DECATUR CLEAR 77 74 90 CALM 30.05R TC 25
PEORIA MOCLDY 81 77 88 E8 30.03S HX 88 TC 27
LACON* CLEAR 73 68 86 CALM 30.04R TC 23
LINCOLN* PTCLDY 78 78 100 CALM 30.03F HX 81 TC 26
SPRINGFIELD CLEAR 80 77 90 E3 30.02R HX 87 TC 27
TAYLORVILLE CLEAR 79 75 89 SE5 30.04R HX 82 TC 26
ILZ033-039-045-046-055>057-062-063-180600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 76 73 91 E5 30.06R TC 24
DANVILLE* CLOUDY 76 74 96 CALM 30.08R TC 24
RANTOUL* CLOUDY 77 74 91 E6 30.07R TC 25
MATTOON CLEAR 76 75 97 SE6 30.04S TC 24
PARIS* CLOUDY 74 74 98 CALM 30.06S TC 24
ILZ079-100>102-180600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTCLDY 80 76 86 SW3 30.01S HX 85 TC 27
CAHOKIA* CLEAR 80 76 87 CALM 30.00R HX 86 TC 27
SPARTA* CLEAR 82 76 82 SE5 30.03S HX 90 TC 28
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-180600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE PTCLDY 76 75 97 CALM 30.02R FOG TC 24
CAIRO* PTCLDY 82 77 86 CALM 30.01S HX 89 TC 28
EFFINGHAM* PTCLDY 76 75 97 E3 30.05S TC 25
MARION PTCLDY N/A N/A N/A CALM 30.04R
MT. VERNON CLEAR 77 75 93 CALM 30.03S TC 25
CENTRALIA* CLEAR 78 74 90 SE6 30.02S TC 25
SALEM* CLEAR 81 75 81 SE5 30.03S HX 87 TC 27
METROPOLIS* PTCLDY 77 74 88 CALM 30.02S TC 25
ILZ067-068-072-073-078-083-087-091-180600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 76 75 97 NE3 30.04S TC 24
FAIRFIELD* CLEAR 75 73 92 CALM 30.03S TC 24
HARRISBURG* CLEAR 75 72 89 CALM 30.03S 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