341
ASUS43 KLOT 181712
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 PM 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.
ILZ001-002-007-009-015-016-024-181800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 89 76 65 W7 29.99F HX 100 TC 32
ILZ003-004-008-010-011-017-018-181800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 84 76 76 S10 30.03F HX 93 TC 29
ROCHELLE* PTSUNNY 83 75 76 S9 30.04F HX 91 TC 29
DE KALB* PTSUNNY 82 75 80 S15 30.05F HX 89 TC 28
PERU* SUNNY 87 80 79 SE8 30.02F HX 103 TC 31
ILZ005-006-012>014-019>023-181800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 80 72 76 SE14 30.06F HX 84 TC 27
CHICAGO-MIDWAY MOSUNNY 78 70 76 SE8 30.07F THUNDER HX 80
AURORA SUNNY 84 75 74 S14 30.04F HX 92 TC 29
JOLIET* MOSUNNY 83 76 78 S12 30.06F HX 91 TC 29
WAUKEGAN MOSUNNY 79 68 69 SE15 30.06F HX 81 TC 26
DUPAGE AIRPORT SUNNY 83 73 72 SE14 30.04F HX 89 TC 28
KANKAKEE* PTSUNNY 77 73 88 SE9 30.10F TC 25
WHEELING MOSUNNY 82 72 71 S10 30.07F HX 87 TC 28
MORRIS* MOSUNNY 83 77 83 S10 30.04F HX 91 TC 28
ROMEOVILLE* MOSUNNY 82 77 83 SE10 30.07F HX 91 TC 28
LANSING* CLOUDY 77 71 80 S3 30.11S THUNDER TC 25
NORTHERLY ISL* N/A 76 70 82 E9 N/A TC 24
LMZ740>746-181800-
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 72 76 140/ 16/ 17 1019.1F 3/ 4
WINTHROP HARBOR 74 75 140/ 16/ 19 N/A 4/ 5
WAUKEGAN HARBOR 74 76 150/ 16/ 19 N/A 3/ 5
WILMETTE BUOY 74 150/ 14/ 19 1020.8F 3/ 5
NORTHERLY ISL 75 130/ 7/ 10 N/A
CALUMET HARBOR 78 170/ 4/ 8 1018.3
BURNS HARBOR 78 140/ 2/ 5 1020.0F
MICHIGAN CITY 70 90/ 9/ 10 1018.5F
MICH CITY BUOY 71 76 90/ 10/ 14 1018.4F 2/ 6
ST. JOSEPH BUOY 70 75 110/ 14/ 17 1020.9F 1/ 6
ILZ025>027-034>036-040-047-049-050-058-095>099-181800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 85 74 69 S9 30.04F HX 92 TC 29
GALESBURG* SUNNY 88 76 67 S10 30.03F HX 99 TC 31
MACOMB* PTSUNNY 89 78 68 S6 30.04F HX 102 TC 32
JACKSONVILLE* SUNNY 89 76 64 S9 30.05F HX 100 TC 32
PITTSFIELD* PTSUNNY 84 62 48 S12G26 30.05F HX 84 TC 29
ILZ028>032-037-038-041>044-048-051>054-059>061-181800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOSUNNY 86 78 75 S14 30.06F HX 98 TC 30
BLOOMINGTON MOSUNNY 87 77 72 S13 30.08F HX 99 TC 31
DECATUR SUNNY 89 74 60 S13 30.08F HX 98 TC 32
PEORIA SUNNY 90 76 63 S12 30.02F HX 101 TC 32
LACON* SUNNY 88 75 66 S9 30.01F HX 97 TC 31
LINCOLN* SUNNY 88 76 67 S12 30.06F HX 99 TC 31
SPRINGFIELD SUNNY 89 77 67 S12 30.05F HX 101 TC 32
TAYLORVILLE SUNNY 88 75 66 S13 30.08F HX 97 TC 31
ILZ033-039-045-046-055>057-062-063-181800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 87 77 72 S13 30.10F HX 99 TC 31
DANVILLE* MOSUNNY 85 75 72 S9 30.12F HX 94 TC 30
RANTOUL* PTSUNNY 87 75 67 S10 30.10F HX 96 TC 30
MATTOON MOSUNNY 88 75 65 S8 30.10F HX 97 TC 31
PARIS* MOSUNNY 86 75 70 S9 30.12S THUNDER HX 95
ILZ079-100>102-181800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 90 75 62 SE10 30.07F HX 100 TC 32
BELLEVILLE SUNNY 92 77 60 S8 30.05F HX 106 TC 34
CAHOKIA* SUNNY 92 77 61 S7 30.06F HX 105 TC 33
SPARTA* SUNNY 94 69 44 S7 30.09F HX 99 TC 35
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 91 71 51 CALM 30.08F HX 97 TC 33
CAIRO* SUNNY 90 75 62 CALM 30.09S HX 100 TC 32
EFFINGHAM* SUNNY 89 75 62 S5 30.11F HX 99 TC 32
MARION SUNNY 90 73 58 S6 30.09F HX 98 TC 32
MT. VERNON SUNNY 92 70 48 S3 30.10F HX 97 TC 33
CENTRALIA* SUNNY 93 71 48 SE3 30.10S HX 99 TC 34
SALEM* SUNNY 91 70 49 S3 30.10F HX 96 TC 33
METROPOLIS* SUNNY 91 70 50 CALM 30.09F HX 97 TC 33
ILZ067-068-072-073-078-083-087-091-181800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 87 74 64 VRB5 30.10F HX 95 TC 31
FLORA* SUNNY 88 75 66 CALM 30.10F HX 97 TC 31
FAIRFIELD* SUNNY 87 72 60 CALM 30.10F HX 93 TC 31
HARRISBURG* SUNNY 89 71 54 S3 30.09F HX 95 TC 32
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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