737
ASUS43 KLOT 170801
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 AM CDT WED SEP 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.
ILZ001-002-007-009-015-016-024-170900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 60 57 89 E3 30.09F TC 16
STERLING* CLEAR 60 57 89 CALM 30.13F TC 16
ILZ003-004-008-010-011-017-018-170900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 59 57 93 CALM 30.14F TC 15
DE KALB* CLEAR 57 54 89 CALM 30.14F TC 14
ILZ005-006-012>014-019>023-170900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 63 59 87 N3 30.12S TC 17
CHICAGO-MIDWAY CLEAR 65 59 81 NW5 30.13R TC 18
AURORA CLEAR 54 50 86 CALM 30.13F TC 12
JOLIET* CLEAR 55 55 99 CALM 30.13S TC 13
WAUKEGAN CLEAR 56 53 90 CALM 30.13S FOG TC 13
DUPAGE AIRPORT CLEAR 56 53 90 N3 30.13F TC 13
WHEELING CLEAR 60 58 92 CALM 30.15R TC 16
MORRIS* CLEAR 59 55 85 CALM 30.12S TC 15
LANSING* PTCLDY 56 56 100 CALM 30.12F TC 14
NORTHERLY ISL* N/A 67 61 81 N3 N/A TC 19
LMZ740>746-170900-
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 67 90/ 6/ 6 1020.2F
WINTHROP HARBOR 66 70 N/A 0
WAUKEGAN HARBOR 67 70 N/A 0
WILMETTE BUOY 71 90/ 6/ 8 1022.3R 1
CHICAGO BUOY 71 65 50/ 2/ 4 1020.4F 1
HARRISON CRIB 70 70/ 4/ 5 N/A
NORTHERLY ISL 67 50/ 2/ 6 N/A
CALUMET HARBOR 69 30/ 4/ 6 1018.8F
BURNS HARBOR 65 80/ 3/ 5 1020.0F
MICHIGAN CITY 65 60/ 4/ 5 1018.6F
ST. JOSEPH BUOY 67 68 60/ 10/ 12 1020.6F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-170900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 66 55 67 SE8 30.09F TC 19
MACOMB* CLEAR 58 55 89 E5 30.12F TC 15
PITTSFIELD* CLEAR 61 58 89 CALM 30.11F TC 16
ILZ028>032-037-038-041>044-048-051>054-059>061-170900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 59 55 87 NE3 30.13F TC 15
DECATUR CLEAR 59 53 80 NE3 30.11F TC 15
PEORIA CLEAR 64 57 78 CALM 30.12F TC 18
SPRINGFIELD CLEAR 57 55 93 CALM 30.10F TC 14
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-170900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 61 55 81 NE5 30.11S TC 16
MATTOON CLEAR 60 51 72 NW3 30.09F TC 16
ILZ079-100>102-170900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* CLEAR 65 58 78 CALM 30.08 TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-170900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 62 62 100 CALM 30.06R TC 17
EFFINGHAM* CLEAR 60 55 82 CALM 30.11S TC 16
MARION CLEAR 64 62 92 CALM 30.07S TC 18
MT. VERNON CLEAR 65 59 81 N3 30.08S TC 18
CENTRALIA* CLEAR 60 55 81 E3 30.08F TC 16
METROPOLIS* CLEAR 65 63 91 CALM 30.05S TC 19
ILZ067-068-072-073-078-083-087-091-170900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 62 55 77 NW3 30.08S TC 17
FAIRFIELD* CLEAR 64 56 75 CALM 30.07F TC 18
HARRISBURG* CLEAR 63 58 84 MISG 30.07S TC 17
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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