586
ASUS43 KLOT 201613
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM 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.
ILZ001-002-007-009-015-016-024-201700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 80 72 76 CALM 30.07S HX 84 TC 27
ILZ003-004-008-010-011-017-018-201700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 72 66 81 NE7 30.13R TC 22
ROCHELLE* CLOUDY 68 66 94 E3 30.12S FOG TC 20
DE KALB* CLOUDY 71 68 90 NE6 30.12S TC 22
PERU* CLOUDY 72 70 92 NE5 30.11R TC 22
ILZ005-006-012>014-019>023-201700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 73 64 73 NE17 30.09S TC 23
CHICAGO-MIDWAY CLOUDY 75 64 68 NE15 30.09R TC 24
AURORA CLOUDY 76 66 71 N10 30.10R TC 24
JOLIET* CLOUDY 78 68 73 E6 30.09S TC 25
WAUKEGAN CLOUDY 72 64 76 NE12G20 30.11R TC 22
DUPAGE AIRPORT CLOUDY 75 65 70 NE10 30.10R TC 24
KANKAKEE* CLOUDY 73 66 78 NE14G20 30.09S TC 23
WHEELING CLOUDY 74 64 71 NE13 30.12R TC 23
MORRIS* CLOUDY 75 67 77 NE5 30.09S TC 24
ROMEOVILLE* PTSUNNY 75 68 78 NE13 30.09S TC 24
LANSING* CLOUDY 71 64 77 N12G18 30.09S TC 22
NORTHERLY ISL* N/A 72 64 76 N10 N/A TC 22
LMZ740>746-201700-
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 40/ 14/ 16 1019.3R 3/ 5
WINTHROP HARBOR 70 72 340/ 14/ 17 N/A 4/ 5
WAUKEGAN HARBOR 71 73 N/A 4/ 5
WILMETTE BUOY 71 50/ 16/ 19 1021.2R 4/ 5
NORTHERLY ISL 71 30/ 9/ 13 N/A
CALUMET HARBOR 72 360/ 10/ 15 1018.0
BURNS HARBOR 71 20/ 10/ 12 1019.0R
MICHIGAN CITY 70 30/ 17/ 19 1017.2R
MICH CITY BUOY 71 75 20/ 12/ 16 1017.3R 5/ 6
ST. JOSEPH BUOY 69 73 340/ 17/ 21 1019.3R 3/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-201700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 79 68 69 NE6 30.09S HX 81 TC 26
GALESBURG* MOSUNNY 79 67 67 CALM 30.10R HX 81 TC 26
MACOMB* SUNNY 81 69 66 CALM 30.11S HX 85 TC 27
JACKSONVILLE* MOSUNNY 79 67 66 NE6 30.09S HX 81 TC 26
PITTSFIELD* MOSUNNY 81 69 66 NE8 30.11S HX 84 TC 27
ILZ028>032-037-038-041>044-048-051>054-059>061-201700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 76 69 77 N10 30.10S TC 25
BLOOMINGTON PTSUNNY 79 70 74 NE10 30.10S HX 82 TC 26
DECATUR MOSUNNY 79 68 69 NE9 30.08S HX 81 TC 26
PEORIA MOSUNNY 80 68 66 CALM 30.08S HX 83 TC 27
LACON* CLOUDY 76 68 75 E3 30.09R TC 24
LINCOLN* SUNNY 80 69 68 E5 30.08F HX 83 TC 27
SPRINGFIELD MOSUNNY 80 67 64 NE12 30.08S HX 82 TC 27
TAYLORVILLE SUNNY 79 66 65 N10 30.08S HX 81 TC 26
ILZ033-039-045-046-055>057-062-063-201700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 81 66 60 MISG 30.07F HX 83 TC 27
DANVILLE* CLOUDY 78 67 70 N12 30.07S TC 25
RANTOUL* PTSUNNY 77 64 65 NE12G17 30.08S TC 25
MATTOON MOSUNNY 77 66 68 NE14 30.06S TC 25
PARIS* CLOUDY 76 66 70 N7 30.06S TC 25
ILZ079-100>102-201700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTSUNNY 79 68 69 NE8 30.08R HX 81 TC 26
BELLEVILLE MOSUNNY 82 69 63 NE9 30.04 HX 85 TC 28
CAHOKIA* PTSUNNY 81 68 64 NE7 30.06S HX 84 TC 27
SPARTA* MOSUNNY 80 69 67 NE8 30.07S HX 83 TC 27
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 79 69 71 NE8 30.04S HX 81 TC 26
CAIRO* CLOUDY 83 74 74 NE6 30.02S HX 90 TC 28
EFFINGHAM* PTSUNNY 79 68 69 N6 30.08S HX 82 TC 26
MARION CLOUDY 79 70 73 N9 30.04S HX 81 TC 26
MT. VERNON CLOUDY 78 68 71 NE12 30.06R HX 80 TC 26
CENTRALIA* CLOUDY 79 66 63 NE5 30.07R HX 81 TC 26
SALEM* PTSUNNY 78 67 69 NE5 30.06S TC 25
METROPOLIS* CLOUDY 82 71 70 N3 30.01F HX 86 TC 28
ILZ067-068-072-073-078-083-087-091-201700-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 75 66 73 NE13G21 30.04S TC 24
FLORA* CLOUDY 77 66 69 NE8 30.06S TC 25
FAIRFIELD* CLOUDY 75 67 76 NE7 30.05S TC 24
HARRISBURG* PTSUNNY 80 68 67 N8 30.04S HX 82 TC 26
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page