810
ASUS43 KLOT 201708
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 PM CDT WED AUG 20 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.
ILZ001-002-007-009-015-016-024-201800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 81 73 76 N3 30.07S HX 86 TC 27
ILZ003-004-008-010-011-017-018-201800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 75 66 73 N7 30.13S TC 24
ROCHELLE* CLOUDY 73 67 82 NE6 30.13S TC 23
DE KALB* PTSUNNY 75 68 78 NE9 30.12F TC 24
PERU* CLOUDY 72 69 92 N5 30.12R TC 22
ILZ005-006-012>014-019>023-201800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 73 64 73 NE15 30.10R TC 23
CHICAGO-MIDWAY CLOUDY 74 63 68 NE14G23 30.10R TC 23
AURORA CLOUDY 77 66 68 NE8 30.10S TC 25
JOLIET* PTSUNNY 79 68 69 NE13G18 30.09S HX 81 TC 26
WAUKEGAN PTSUNNY 75 63 66 N9G22 30.11S TC 24
DUPAGE AIRPORT CLOUDY 76 64 66 NE12 30.10S TC 24
KANKAKEE* CLOUDY 75 64 69 NE16 30.09S TC 24
WHEELING CLOUDY 73 64 73 N14G20 30.12S TC 23
MORRIS* CLOUDY 77 69 74 N3 30.08S TC 25
ROMEOVILLE* PTSUNNY 75 68 78 NE13G21 30.10R TC 24
LANSING* PTSUNNY 74 64 72 N15 30.10R TC 23
NORTHERLY ISL* N/A 72 62 71 NE12 N/A TC 22
LMZ740>746-201800-
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 67 74 30/ 10/ 14 1019.5R
WINTHROP HARBOR 70 72 340/ 14/ 19 N/A 4/ 5
WAUKEGAN HARBOR 70 73 N/A 3/ 5
WILMETTE BUOY 71 40/ 14/ 19 1021.3R 4/ 5
NORTHERLY ISL 73 40/ 13/ 14 N/A
CALUMET HARBOR 72 10/ 10/ 16 1018.0
BURNS HARBOR 71 30/ 9/ 10 1019.0S
MICHIGAN CITY 70 20/ 17/ 18 1017.2S
MICH CITY BUOY 71 75 20/ 14/ 17 1017.2F 6/ 6
ST. JOSEPH BUOY 69 73 350/ 14/ 19 1019.4R 3/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-201800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 82 68 62 E5 30.09S HX 85 TC 28
GALESBURG* PTSUNNY 82 69 64 CALM 30.09F HX 85 TC 28
MACOMB* PTSUNNY 82 69 65 CALM 30.11S HX 85 TC 28
JACKSONVILLE* MOSUNNY 81 67 62 NE6 30.08F HX 83 TC 27
PITTSFIELD* MOSUNNY 83 68 61 NE5 30.10F HX 86 TC 28
ILZ028>032-037-038-041>044-048-051>054-059>061-201800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 76 67 75 N6 30.09F TC 24
BLOOMINGTON CLOUDY 77 69 76 NE10 30.10S TC 25
DECATUR MOSUNNY 82 69 64 N7 30.08S HX 85 TC 28
PEORIA PTSUNNY 82 68 62 NE6 30.08S HX 85 TC 28
LACON* CLOUDY 76 68 77 E9 30.09S TC 24
LINCOLN* PTSUNNY 80 68 66 NE6 30.08F HX 83 TC 27
SPRINGFIELD MOSUNNY 82 68 62 E9 30.08S HX 85 TC 28
TAYLORVILLE MOSUNNY 79 66 65 NE9 30.08S HX 81 TC 26
ILZ033-039-045-046-055>057-062-063-201800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 81 66 60 NE12G21 30.07S HX 83 TC 27
DANVILLE* PTSUNNY 78 67 69 N15 30.06F HX 81 TC 26
RANTOUL* PTSUNNY 79 65 61 N12G18 30.07F HX 81 TC 26
MATTOON PTSUNNY 79 66 64 N12 30.06S HX 81 TC 26
PARIS* CLOUDY 80 67 65 NE9 30.06S HX 82 TC 26
ILZ079-100>102-201800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTSUNNY 81 68 65 NE9 30.08S HX 83 TC 27
BELLEVILLE PTSUNNY 82 69 64 N8 30.04S HX 86 TC 28
CAHOKIA* PTSUNNY 83 69 62 NE7 30.06S HX 86 TC 28
SPARTA* CLOUDY 83 68 59 NE9 30.06F HX 86 TC 29
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 80 69 69 NE8 30.04S HX 83 TC 27
CAIRO* PTSUNNY 83 75 75 NE3 30.01S HX 91 TC 29
EFFINGHAM* CLOUDY 78 67 69 N8 30.07F HX 80 TC 26
MARION CLOUDY 79 70 73 N12 30.04S HX 81 TC 26
MT. VERNON CLOUDY 79 67 66 NE10 30.05F HX 81 TC 26
CENTRALIA* CLOUDY 80 66 62 NE5 30.06F HX 82 TC 27
SALEM* MOSUNNY 82 66 58 NE7 30.06S HX 85 TC 28
METROPOLIS* PTSUNNY 82 70 66 CALM 30.01F HX 86 TC 28
ILZ067-068-072-073-078-083-087-091-201800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 75 66 73 N13 30.04S TC 24
FLORA* CLOUDY 77 68 73 NE9 30.06S TC 25
FAIRFIELD* CLOUDY 76 66 70 N7 30.05S TC 25
HARRISBURG* CLOUDY 80 68 66 N10 30.04S HX 82 TC 27
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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