257
ASUS43 KLOT 181301
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 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.
ILZ001-002-007-009-015-016-024-181400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 74 72 93 E5 30.01S TC 23
ILZ003-004-008-010-011-017-018-181400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 72 70 93 VRB6 30.06S TC 22
ILZ005-006-012>014-019>023-181400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 73 65 75 SE12G21 30.08R TC 23
CHICAGO-MIDWAY PTSUNNY 74 63 68 SE10 30.09R TC 23
AURORA CLOUDY 74 70 87 SE12 30.07R TC 23
JOLIET* CLOUDY 73 71 91 SE7 30.09R TC 23
WAUKEGAN CLOUDY 74 67 78 SE13G23 30.09R TC 23
DUPAGE AIRPORT CLOUDY 74 69 85 SE8 30.08R TC 23
WHEELING CLOUDY 72 70 93 SE9 30.10R TC 22
MORRIS* CLOUDY 73 73 100 SE10 30.06R TC 23
ROMEOVILLE* CLOUDY 72 72 100 SE12 30.09R TC 22
LANSING* CLOUDY 71 64 81 SE14 30.10R TC 21
NORTHERLY ISL* N/A 70 65 84 SE9 N/A TC 21
LMZ740>746-181400-
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 69 75 130/ 17/ 21 1019.4
WINTHROP HARBOR 74 75 140/ 16/ 19 N/A 4/ 5
WAUKEGAN HARBOR 74 75 150/ 16/ 21 N/A 4/ 5
WILMETTE BUOY 72 160/ 14/ 17 1020.9R 4/ 5
CALUMET HARBOR 72 140/ 9/ 14 1017.8
BURNS HARBOR 71 150/ 11/ 15 1019.0S
MICHIGAN CITY 70 140/ 16/ 19 1017.5R
MICH CITY BUOY 71 77 140/ 16/ 21 1017.3S 3/ 6
ST. JOSEPH BUOY 70 76 90/ 16/ 21 1020.1R 2/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-181400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 79 73 82 S7 30.02R HX 82 TC 26
GALESBURG* MOSUNNY 75 75 100 SE3 30.04R TC 24
MACOMB* SUNNY 77 77 100 CALM 30.05R FOG TC 25
ILZ028>032-037-038-041>044-048-051>054-059>061-181400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTSUNNY 76 76 100 S8 30.08R TC 24
DECATUR MOSUNNY 80 74 81 S6 30.07R HX 85 TC 27
PEORIA SUNNY 78 74 87 S8 30.04R HX 81 TC 26
LACON* SUNNY 74 71 89 SE7 30.03S TC 24
LINCOLN* PTSUNNY 78 77 96 S6 30.05R HX 80 TC 26
SPRINGFIELD MOSUNNY 79 74 84 S7 30.05R HX 82 TC 26
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-181400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 77 75 93 SE8 30.08R TC 25
DANVILLE* PTSUNNY 76 74 93 SE8 30.10R TC 24
RANTOUL* CLOUDY 75 74 95 SE5 30.08S TC 24
MATTOON N/A 78 74 87 SE5 30.07R HX 81 TC 26
ILZ079-100>102-181400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 77 75 94 E7 30.06R TC 25
BELLEVILLE SUNNY 79 75 86 CALM 30.04R HX 83 TC 26
CAHOKIA* SUNNY 79 75 87 S6 30.04R HX 83 TC 26
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 78 71 79 CALM 30.06R HX 80 TC 26
CAIRO* SUNNY 80 76 86 CALM 30.07R HX 86 TC 27
MARION SUNNY 77 72 83 SE8 30.06R TC 25
MT. VERNON SUNNY 79 73 82 S3 30.08R HX 82 TC 26
CENTRALIA* SUNNY 80 72 77 SE7 30.07R HX 83 TC 27
SALEM* SUNNY 80 72 76 SE6 30.07R HX 83 TC 27
METROPOLIS* SUNNY 78 74 87 CALM 30.07R HX 80 TC 25
ILZ067-068-072-073-078-083-087-091-181400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE N/A 78 74 87 E5 30.08R HX 81 TC 26
FLORA* SUNNY 77 75 94 SE6 30.08R TC 25
FAIRFIELD* SUNNY 77 71 81 CALM 30.07R TC 25
HARRISBURG* SUNNY 77 72 84 CALM 30.07R TC 25
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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