542
ASUS43 KLOT 170401
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM CDT SAT AUG 16 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.
ILZ001-002-007-009-015-016-024-170500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 80 78 94 CALM 30.00S HX 88 TC 27
STERLING* MOCLDY 75 73 93 CALM 30.00F TC 24
ILZ003-004-008-010-011-017-018-170500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 72 70 93 CALM 30.01F TC 22
PERU* MOCLDY 76 69 80 SE7 30.02R TC 24
ILZ005-006-012>014-019>023-170500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 74 72 93 CALM 30.02R TC 23
CHICAGO-MIDWAY CLOUDY 78 71 79 S6 30.02R HX 80 TC 26
AURORA CLOUDY 73 71 93 S6 30.02R TC 23
JOLIET* CLOUDY 75 74 96 S3 30.05R TC 24
WAUKEGAN TSTM 75 72 90 CALM 30.02R FOG TC 24
DUPAGE AIRPORT CLOUDY 74 71 91 S5 30.02R TC 23
WHEELING CLOUDY 74 71 91 MISG 30.02R TC 23
MORRIS* MOCLDY 73 72 94 S5 30.04R TC 23
LANSING* CLOUDY 74 72 93 S9 30.03R TC 24
LMZ740>746-170500-
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 77 76 230/ 8/ 8 1016.7R
WINTHROP HARBOR 75 75 N/A 2/ 4
WAUKEGAN HARBOR 76 75 120/ 4/ 8 N/A 2/ 4
WILMETTE BUOY 76 80/ 10/ 14 1019.1R 2/ 5
NORTHERLY ISL 77 240/ 4/ 10 N/A
CALUMET HARBOR 77 200/ 5/ 7 1014.8
BURNS HARBOR 76 190/ 5/ 8 1016.9R
MICHIGAN CITY 78 40/ 12/ 13 1015.7R
MICH CITY BUOY 78 77 50/ 14/ 17 1015.7R 2/ 2
ST. JOSEPH BUOY 77 77 110/ 6/ 8 1016.8R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-170500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 83 77 82 S6 30.03S HX 92 TC 28
GALESBURG* PTCLDY 79 76 92 CALM 30.03S HX 83 TC 26
MACOMB* PTCLDY 77 76 96 S3 30.04F TC 25
ILZ028>032-037-038-041>044-048-051>054-059>061-170500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOCLDY 77 69 76 SE16G23 30.07R TC 25
DECATUR MOCLDY 80 74 81 E7 30.07R HX 85 TC 27
PEORIA MOCLDY 83 79 88 S7 30.02S HX 94 TC 28
LACON* MOCLDY 75 68 80 SE3 30.03R TC 24
LINCOLN* PTCLDY 78 72 81 CALM 30.05R HX 81 TC 26
SPRINGFIELD CLEAR 78 74 87 CALM 30.04R HX 81 TC 26
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-170500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 79 67 66 N9G30 30.13R HX 81 TC 26
DANVILLE* CLOUDY 70 66 88 S5G10 30.11F TC 21
RANTOUL* TSTM 69 67 93 CALM 30.14R TC 21
MATTOON MOCLDY 79 75 87 SE3 30.07R HX 83 TC 26
ILZ079-100>102-170500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 75 74 97 CALM 30.04S TC 24
CAHOKIA* CLEAR 78 75 90 CALM 30.02F HX 81 TC 26
SPARTA* CLEAR 83 72 68 SE3 30.06R HX 88 TC 29
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-170500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 76 74 93 CALM 30.04F TC 24
CAIRO* CLEAR 79 77 95 CALM 30.05F HX 83 TC 26
EFFINGHAM* PTCLDY 80 78 91 E3 30.07R HX 88 TC 27
MARION CLEAR N/A N/A N/A CALM 30.06F
MT. VERNON CLEAR 80 74 81 CALM 30.05F HX 85 TC 27
CENTRALIA* CLEAR 75 73 93 CALM 30.05S TC 24
SALEM* CLEAR 79 75 85 S3 30.05S HX 83 TC 26
METROPOLIS* CLEAR 77 76 96 CALM 30.06F TC 25
ILZ067-068-072-073-078-083-087-091-170500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 79 77 94 CALM 30.06R HX 83 TC 26
FAIRFIELD* CLEAR 77 74 88 CALM 30.05F TC 25
HARRISBURG* CLEAR 77 73 89 CALM 30.06S 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