696
ASUS43 KLOT 201811
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 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.
ILZ001-002-007-009-015-016-024-201900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 83 72 69 NE13 30.06S HX 88 TC 28
6HR MIN TEMP: 68; 6HR MAX TEMP: 83; 6HR PCP: 0.01;
ILZ003-004-008-010-011-017-018-201900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 79 65 62 NE6 30.13R HX 81 TC 26
6HR MIN TEMP: 68; 6HR MAX TEMP: 79; 6HR PCP: 0.03;
ROCHELLE* MOSUNNY 75 65 70 NE8 30.12S TC 24
DE KALB* CLOUDY 76 66 71 NE10 30.12S TC 25
PERU* CLOUDY 73 69 85 CALM 30.10F TC 23
ILZ005-006-012>014-019>023-201900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 73 64 73 NE16 30.10S TC 23
6HR MIN TEMP: 69; 6HR MAX TEMP: 74;
CHICAGO-MIDWAY PTSUNNY 75 62 64 NE16G23 30.09F TC 24
6HR MIN TEMP: 71; 6HR MAX TEMP: 76;
AURORA MOSUNNY 79 66 64 NE9 30.10S HX 81 TC 26
6HR MIN TEMP: 66; 6HR MAX TEMP: 79;
JOLIET* CLOUDY 77 67 70 NE12 30.09S TC 25
WAUKEGAN PTSUNNY 75 63 66 NE14G22 30.11S TC 24
6HR MIN TEMP: 68; 6HR MAX TEMP: 75;
DUPAGE AIRPORT CLOUDY 76 64 66 N15 30.10S TC 24
6HR MIN TEMP: 67; 6HR MAX TEMP: 77;
KANKAKEE* CLOUDY 75 64 69 NE13 30.08F TC 24
WHEELING MOSUNNY 75 64 68 NE13G23 30.12S TC 24
6HR MIN TEMP: 69; 6HR MAX TEMP: 76;
MORRIS* CLOUDY 75 68 78 CALM 30.08S TC 24
ROMEOVILLE* CLOUDY 75 68 78 N16 30.10S TC 24
LANSING* CLOUDY 73 65 75 N8G18 30.09S TC 23
NORTHERLY ISL* N/A 72 63 73 SE10 N/A TC 22
LMZ740>746-201900-
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 68 74 20/ 10/ 14 1019.6R 3/ 5
WINTHROP HARBOR 70 73 340/ 12/ 16 N/A 3/ 5
WAUKEGAN HARBOR 70 74 N/A 3/ 5
WILMETTE BUOY 70 30/ 14/ 19 1021.7R 4/ 5
NORTHERLY ISL 74 350/ 8/ 14 N/A
CALUMET HARBOR 72 350/ 9/ 14 1018.2
BURNS HARBOR 70 20/ 9/ 11 1019.0S
MICHIGAN CITY 70 10/ 16/ 18 1017.2S
MICH CITY BUOY 71 75 360/ 14/ 17 1016.9F 5/ 5
ST. JOSEPH BUOY 68 73 360/ 12/ 14 1019.5R 3/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-201900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 83 67 58 VRB5 30.08F HX 85 TC 28
GALESBURG* MOSUNNY 83 69 62 CALM 30.08S HX 87 TC 29
MACOMB* PTSUNNY 83 70 66 NW3 30.09F HX 87 TC 28
JACKSONVILLE* PTSUNNY 82 67 59 N5 30.07F HX 85 TC 28
PITTSFIELD* PTSUNNY 84 68 59 CALM 30.09F HX 87 TC 29
ILZ028>032-037-038-041>044-048-051>054-059>061-201900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 77 67 72 N8 30.09S TC 25
BLOOMINGTON CLOUDY 77 69 76 N9 30.09F TC 25
DECATUR PTSUNNY 83 69 62 N10 30.07F HX 86 TC 28
PEORIA PTSUNNY 81 68 64 NE6 30.06F HX 84 TC 27
6HR MIN TEMP: 68; 6HR MAX TEMP: 83;
LACON* CLOUDY 75 68 77 NE6 30.08F TC 24
LINCOLN* CLOUDY 81 69 68 N6 30.07F HX 84 TC 27
SPRINGFIELD MOSUNNY 83 68 60 NE9 30.07F HX 86 TC 28
6HR MIN TEMP: 66; 6HR MAX TEMP: 83;
TAYLORVILLE MOSUNNY 81 66 61 N9 30.07S HX 83 TC 27
ILZ033-039-045-046-055>057-062-063-201900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 82 66 58 NE10G17 30.06F HX 84 TC 28
DANVILLE* PTSUNNY 80 67 64 N15 30.06S HX 82 TC 26
RANTOUL* PTSUNNY 78 64 62 N14G21 30.07S HX 80 TC 26
MATTOON PTSUNNY 81 66 60 N14 30.05F HX 83 TC 27
PARIS* CLOUDY 80 67 64 N7 30.05F HX 82 TC 27
ILZ079-100>102-201900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTSUNNY 81 66 61 E9 30.07F HX 83 TC 27
BELLEVILLE PTSUNNY 84 70 61 N9 30.03F HX 88 TC 29
SPARTA* PTSUNNY 86 67 52 NE7 30.05F HX 88 TC 30
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE PTSUNNY 81 68 64 NW6 30.03F HX 84 TC 27
6HR MIN TEMP: 74; 6HR MAX TEMP: 83;
CAIRO* CLOUDY 85 75 71 N10 30.00F HX 93 TC 29
EFFINGHAM* PTSUNNY 81 68 64 N8 30.06F HX 83 TC 27
MARION CLOUDY 79 68 69 NE12 30.03F HX 81 TC 26
MT. VERNON PTSUNNY 81 68 64 NE10 30.05S HX 84 TC 27
CENTRALIA* PTSUNNY 83 66 54 NE7 30.04F HX 85 TC 29
SALEM* PTSUNNY 82 65 55 NE9 30.05S HX 84 TC 28
METROPOLIS* PTSUNNY 84 69 61 CALM 30.00F HX 87 TC 29
ILZ067-068-072-073-078-083-087-091-201900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 76 66 71 NE9 30.04S TC 24
FLORA* CLOUDY 79 68 69 N12 30.05S HX 81 TC 26
FAIRFIELD* CLOUDY 77 66 70 N7 30.04F TC 25
HARRISBURG* CLOUDY 78 67 69 N8 30.04S HX 80 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