642
ASUS43 KLOT 171701
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 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.
ILZ001-002-007-009-015-016-024-171800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 85 78 80 SE5 30.04F HX 96 TC 29
STERLING* MOSUNNY 86 78 77 VRB5 30.07S HX 98 TC 30
ILZ003-004-008-010-011-017-018-171800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 79 73 82 VRB3 30.10S HX 82 TC 26
ILZ005-006-012>014-019>023-171800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 81 72 74 N9 30.09R HX 85 TC 27
CHICAGO-MIDWAY PTSUNNY 82 72 71 NE10 30.09R HX 87 TC 28
AURORA MOSUNNY 84 73 69 CALM 30.08S HX 90 TC 29
WAUKEGAN PTSUNNY 79 70 74 NE10 30.11R HX 82 TC 26
DUPAGE AIRPORT MOSUNNY 82 72 71 CALM 30.08S HX 87 TC 28
WHEELING CLOUDY 80 71 74 E9 30.11R HX 84 TC 27
MORRIS* MOSUNNY 80 75 83 CALM 30.08S HX 86 TC 27
LANSING* MOSUNNY 81 74 79 NE5 30.09F HX 87 TC 27
NORTHERLY ISL* N/A 79 71 76 NE8 N/A HX 82 TC 26
LMZ740>746-171800-
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 10/ 14/ 16 1019.1S
WINTHROP HARBOR 74 73 340/ 10/ 12 N/A 2/ 4
WAUKEGAN HARBOR 75 75 340/ 12/ 14 N/A 2/ 3
WILMETTE BUOY 75 40/ 10/ 16 1021.7R 1/ 3
NORTHERLY ISL 79 350/ 5/ 10 N/A
CALUMET HARBOR 78 350/ 6/ 9 1018.0R
BURNS HARBOR 76 350/ 2/ 4 1019.6S
MICHIGAN CITY 78 350/ 8/ 9 1017.3F
MICH CITY BUOY 76 77 350/ 6/ 8 1017.4R 1/ 3
ST. JOSEPH BUOY 76 77 340/ 6/ 8 1019.6R 2/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-171800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 90 76 63 E5 30.05S HX 101 TC 32
MACOMB* MOSUNNY 86 78 76 SE8 30.08S HX 97 TC 30
ILZ028>032-037-038-041>044-048-051>054-059>061-171800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTSUNNY 83 74 74 S16 30.09F HX 89 TC 28
DECATUR PTSUNNY 78 71 79 S7 30.08F HX 80 TC 26
PEORIA MOSUNNY 82 73 74 S12 30.07S HX 87 TC 28
SPRINGFIELD MOSUNNY 82 72 71 S9 30.07F HX 87 TC 28
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-171800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 81 75 82 SW6 30.08F HX 87 TC 27
DANVILLE* PTSUNNY 82 71 69 CALM 30.09F HX 86 TC 28
RANTOUL* PTSUNNY 83 73 70 SW5 30.08F HX 89 TC 29
MATTOON PTSUNNY 84 71 65 S9 30.07F HX 89 TC 29
ILZ079-100>102-171800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTSUNNY 86 77 74 E14 30.08R HX 97 TC 30
CAHOKIA* MOSUNNY 93 76 57 VRB5 30.05 HX 105 TC 34
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-171800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 93 74 53 VRB3 30.07S HX 103 TC 34
MARION MOSUNNY 93 73 52 N7 30.09R HX 102 TC 34
MT. VERNON MOSUNNY 91 73 55 E12 30.10F HX 99 TC 33
CENTRALIA* MOSUNNY 89 73 58 E13 30.10F HX 96 TC 32
SALEM* MOSUNNY 87 72 59 SE7 30.10F HX 94 TC 31
METROPOLIS* SUNNY 93 68 43 CALM 30.09R HX 97 TC 34
ILZ067-068-072-073-078-083-087-091-171800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTSUNNY 81 72 74 S6 30.09F HX 85 TC 27
FAIRFIELD* MOSUNNY 84 71 65 E8 30.11S HX 89 TC 29
HARRISBURG* MOSUNNY 89 74 60 NE9 30.10F HX 98 TC 32
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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