792
ASUS43 KLOT 181504
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 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.
ILZ001-002-007-009-015-016-024-181600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 83 76 79 S7 30.02S HX 91 TC 28
ILZ003-004-008-010-011-017-018-181600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 77 73 87 SE8 30.07R TC 25
ILZ005-006-012>014-019>023-181600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 74 67 78 SE8 30.09R TC 23
CHICAGO-MIDWAY LGT RAIN 76 67 73 S5 30.09S TC 24
AURORA PTSUNNY 77 71 82 S10 30.09R TC 25
WAUKEGAN CLOUDY 75 67 76 S12G18 30.09S TC 24
DUPAGE AIRPORT MOSUNNY 77 69 76 SE9 30.09R TC 25
WHEELING CLOUDY 76 69 79 S7 30.10S TC 24
MORRIS* PTSUNNY 77 74 91 SE8 30.07R TC 25
ROMEOVILLE* MOSUNNY 77 73 88 S14 30.10S TC 25
LANSING* CLOUDY 75 68 78 SE9 30.11R TC 24
NORTHERLY ISL* N/A 75 66 73 SE6 N/A TC 24
LMZ740>746-181600-
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 70 76 140/ 16/ 19 1019.7R
WINTHROP HARBOR 73 75 170/ 16/ 19 N/A 4/ 6
WAUKEGAN HARBOR 73 75 150/ 14/ 17 N/A 4/ 5
WILMETTE BUOY 73 170/ 16/ 19 1021.1R 4/ 5
NORTHERLY ISL 74 140/ 5/ 10 N/A
CALUMET HARBOR 74 160/ 6/ 11 1018.0
BURNS HARBOR 74 170/ 6/ 10 1019.6S
MICHIGAN CITY 73 150/ 15/ 17 1017.6F
MICH CITY BUOY 73 77 140/ 14/ 17 1017.7R 2/ 7
ST. JOSEPH BUOY 71 75 100/ 12/ 17 1020.7R 1/ 2
ILZ025>027-034>036-040-047-049-050-058-095>099-181600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 85 75 72 SW12 30.04R HX 93 TC 29
MACOMB* SUNNY 87 77 72 CALM 30.07R HX 98 TC 30
ILZ028>032-037-038-041>044-048-051>054-059>061-181600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 83 76 79 S14 30.10R HX 91 TC 28
DECATUR CLOUDY 85 75 72 S9 30.10R HX 93 TC 29
PEORIA SUNNY 84 75 74 S9 30.05S HX 92 TC 29
SPRINGFIELD PTSUNNY 85 76 74 S9 30.07R HX 94 TC 29
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-181600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 84 76 76 SE9 30.10R HX 93 TC 29
DANVILLE* PTSUNNY 80 75 84 S7 30.12R HX 84 TC 27
RANTOUL* MOSUNNY 82 75 80 SE6 30.11R HX 88 TC 28
MATTOON SUNNY 84 74 71 S12 30.10R HX 91 TC 29
ILZ079-100>102-181600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 86 77 74 S7 30.08R HX 97 TC 30
BELLEVILLE SUNNY 87 76 68 S9 30.06R HX 97 TC 31
CAHOKIA* SUNNY 87 76 69 S6 30.07R HX 97 TC 31
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 86 73 65 SE6 30.09R HX 93 TC 30
MARION SUNNY 86 75 70 S5 30.09R HX 95 TC 30
MT. VERNON SUNNY 88 73 61 S7 30.10R HX 95 TC 31
CENTRALIA* SUNNY 87 72 60 SE7 30.10R HX 93 TC 30
SALEM* SUNNY 87 72 61 SE6 30.10R HX 93 TC 30
METROPOLIS* SUNNY 85 71 62 CALM 30.09R HX 91 TC 30
ILZ067-068-072-073-078-083-087-091-181600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 84 74 71 S9 30.10R HX 91 TC 29
FAIRFIELD* SUNNY 84 71 66 SE7 30.10R HX 89 TC 29
HARRISBURG* SUNNY 85 72 63 CALM 30.09S HX 91 TC 30
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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