309
ASUS43 KLOT 171804
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 PM CDT SUN AUG 17 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.
ILZ001-002-007-009-015-016-024-171900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 87 78 74 SE7 30.03F HX 100 TC 31
6HR MIN TEMP: 75; 6HR MAX TEMP: 87;
STERLING* MOSUNNY 89 79 72 E5 30.05F HX 104 TC 32
ILZ003-004-008-010-011-017-018-171900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 81 74 79 N7 30.08F HX 86 TC 27
6HR MIN TEMP: 71; 6HR MAX TEMP: 81;
ILZ005-006-012>014-019>023-171900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 80 72 76 NE12 30.08F HX 84 TC 27
6HR MIN TEMP: 71; 6HR MAX TEMP: 81;
CHICAGO-MIDWAY PTSUNNY 83 72 69 NE8 30.07F HX 88 TC 28
6HR MIN TEMP: 72; 6HR MAX TEMP: 84;
AURORA CLOUDY 85 74 69 CALM 30.07F HX 92 TC 29
6HR MIN TEMP: 73; 6HR MAX TEMP: 85;
WAUKEGAN PTSUNNY 79 68 69 NE13G20 30.09F HX 81 TC 26
6HR MIN TEMP: 75; 6HR MAX TEMP: 81;
DUPAGE AIRPORT PTSUNNY 84 74 71 E9 30.07F HX 91 TC 29
6HR MIN TEMP: 72; 6HR MAX TEMP: 84;
WHEELING CLOUDY 78 71 79 E6 30.10F HX 80 TC 26
6HR MIN TEMP: 73; 6HR MAX TEMP: 82;
MORRIS* PTSUNNY 82 75 81 CALM 30.06F HX 88 TC 28
ROMEOVILLE* SUNNY 84 77 79 VRB5 30.08F HX 94 TC 29
LANSING* PTSUNNY 82 74 76 NE8 30.08F HX 87 TC 28
NORTHERLY ISL* N/A 78 72 81 N6 N/A HX 80 TC 26
LMZ740>746-171900-
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 73 76 20/ 16/ 19 1019.0F
WINTHROP HARBOR 74 73 350/ 14/ 17 N/A 2/ 4
WAUKEGAN HARBOR 75 75 340/ 14/ 16 N/A 2/ 4
WILMETTE BUOY 75 50/ 12/ 14 1021.4F 2/ 3
NORTHERLY ISL 79 10/ 6/ 10 N/A
CALUMET HARBOR 78 20/ 6/ 9 1017.9
BURNS HARBOR 76 360/ 3/ 4 1019.3F
MICHIGAN CITY 79 340/ 7/ 9 1017.1F
MICH CITY BUOY 76 77 360/ 10/ 12 1017.3F 2/ 3
ST. JOSEPH BUOY 76 77 320/ 8/ 10 1019.6F 1/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-171900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 90 78 68 E9 30.03F HX 104 TC 32
MACOMB* MOSUNNY 89 78 72 SE6 30.06F HX 103 TC 31
ILZ028>032-037-038-041>044-048-051>054-059>061-171900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 84 74 71 S10 30.08F HX 91 TC 29
DECATUR PTSUNNY 82 72 71 S8 30.06F HX 87 TC 28
PEORIA SUNNY 84 73 69 S9 30.05F HX 90 TC 29
6HR MIN TEMP: 75; 6HR MAX TEMP: 85; 6HR PCP: 0.12;
SPRINGFIELD MOSUNNY 87 74 64 S10 30.05F HX 95 TC 31
6HR MIN TEMP: 73; 6HR MAX TEMP: 87; 6HR PCP: 0.04;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-171900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 87 76 69 SW7 30.06F HX 97 TC 31
DANVILLE* MOSUNNY 85 73 68 CALM 30.07F HX 92 TC 29
RANTOUL* MOSUNNY 87 73 62 SW8 30.07S HX 94 TC 31
MATTOON PTSUNNY 86 72 62 S6 30.06F HX 92 TC 30
ILZ079-100>102-171900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 88 77 70 SE13 30.05F HX 100 TC 31
BELLEVILLE MOSUNNY 93 77 58 SE10 30.02 HX 106 TC 34
CAHOKIA* MOSUNNY 95 78 58 SE7 30.02F HX 111 TC 35
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-171900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 94 70 45 SE5 30.05F HX 100 TC 34
6HR MIN TEMP: 72; 6HR MAX TEMP: 95;
MARION MOSUNNY 93 73 52 NE6 30.06F HX 102 TC 34
MT. VERNON MOSUNNY 91 73 55 SE7 30.07F HX 99 TC 33
CENTRALIA* MOSUNNY 90 72 54 E9 30.07F HX 96 TC 32
SALEM* MOSUNNY 90 71 53 S6 30.06F HX 96 TC 32
METROPOLIS* SUNNY 94 69 43 CALM 30.06F HX 99 TC 35
ILZ067-068-072-073-078-083-087-091-171900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTSUNNY 84 74 71 S8 30.07F HX 91 TC 29
FAIRFIELD* MOSUNNY 87 71 59 S7 30.06F HX 92 TC 30
HARRISBURG* MOSUNNY 91 75 60 NE6 30.07F HX 101 TC 33
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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