822
ASUS43 KLOT 182001
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 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.
ILZ001-002-007-009-015-016-024-182100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 91 77 63 VRB7 29.95F HX 104 TC 33
ILZ003-004-008-010-011-017-018-182100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 83 73 72 VRB6G17 30.00F THUNDER HX 89
ILZ005-006-012>014-019>023-182100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 85 74 69 S12G22 30.00F HX 92 TC 29
CHICAGO-MIDWAY PTSUNNY 86 74 67 S12G22 30.01F HX 94 TC 30
AURORA PTSUNNY 89 79 72 S14 30.00F HX 104 TC 32
WAUKEGAN MOSUNNY 82 72 71 SE15 30.01F HX 87 TC 28
DUPAGE AIRPORT MOSUNNY 87 77 72 S15 30.00F HX 99 TC 31
WHEELING PTSUNNY 85 74 69 SE13 30.01F HX 92 TC 29
MORRIS* PTSUNNY 88 79 76 S10 30.00F HX 103 TC 31
ROMEOVILLE* PTSUNNY 84 81 89 SE13 30.02F HX 98 TC 29
LANSING* CLOUDY 83 75 76 S12 30.04F HX 90 TC 28
NORTHERLY ISL* N/A 79 73 82 SE8 N/A HX 82 TC 26
LMZ740>746-182100-
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 76 150/ 17/ 19 1017.4F
WINTHROP HARBOR 75 75 150/ 16/ 19 N/A 4/ 5
WAUKEGAN HARBOR 75 76 N/A 3/ 4
WILMETTE BUOY 75 150/ 16/ 19 1018.9F 3/ 4
NORTHERLY ISL 78 120/ 12/ 13 N/A
CALUMET HARBOR 82 140/ 8/ 10 1016.3F
BURNS HARBOR 79 150/ 7/ 10 1017.9F
MICHIGAN CITY 75 150/ 14/ 17 1016.1F
MICH CITY BUOY 75 76 140/ 12/ 14 1016.2F 1/ 3
ST. JOSEPH BUOY 74 75 110/ 14/ 17 1019.2F 1/ 2
ILZ025>027-034>036-040-047-049-050-058-095>099-182100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 91 78 65 S10 29.98F HX 106 TC 33
MACOMB* SUNNY 93 77 59 S9 30.00S HX 106 TC 34
ILZ028>032-037-038-041>044-048-051>054-059>061-182100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 91 78 65 S16 30.03F HX 106 TC 33
DECATUR SUNNY 93 76 57 S10 30.03F HX 105 TC 34
PEORIA MOSUNNY 94 76 55 S15G23 29.98F HX 106 TC 34
SPRINGFIELD MOSUNNY 92 74 55 S13 30.00F HX 101 TC 33
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-182100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 91 77 63 S10 30.04F HX 104 TC 33
DANVILLE* CLOUDY 87 78 74 E7 30.06F HX 99 TC 30
RANTOUL* PTSUNNY 91 76 61 S7 30.04F HX 102 TC 33
MATTOON N/A 91 73 55 S8 30.03 HX 99 TC 33
ILZ079-100>102-182100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 93 75 55 S8 30.01F HX 104 TC 34
BELLEVILLE SUNNY 97 73 45 S7 29.98F HX 106 TC 36
CAHOKIA* SUNNY 97 73 45 VRB6 29.99F HX 107 TC 36
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-182100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 94 72 48 S6 30.01F HX 102 TC 34
MARION SUNNY 95 72 46 S3 30.03F HX 103 TC 35
MT. VERNON SUNNY 97 73 45 SE7 30.03F HX 107 TC 36
SALEM* SUNNY 94 70 45 CALM 30.02F HX 101 TC 35
METROPOLIS* SUNNY 96 69 42 CALM 30.04F HX 101 TC 35
ILZ067-068-072-073-078-083-087-091-182100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 90 75 61 VRB3 30.05F HX 100 TC 32
FAIRFIELD* SUNNY 92 71 50 S3 30.03F HX 98 TC 33
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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