235
ASUS43 KLOT 170810
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 PTCLDY 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
ROCHELLE* CLEAR 57 52 84 CALM 30.13F TC 14
DE KALB* CLEAR 57 54 89 CALM 30.14F TC 14
PERU* CLEAR 56 54 93 NE3 30.12F TC 13
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 30.13F FOG TC 13
DUPAGE AIRPORT CLEAR 56 53 90 N3 30.13F TC 13
KANKAKEE* CLEAR 57 57 100 CALM 30.12S TC 14
WHEELING CLEAR 60 58 92 CALM 30.15R TC 16
MORRIS* CLEAR 59 55 85 CALM 30.12S TC 15
ROMEOVILLE* CLEAR 61 61 100 N5 30.13F TC 16
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 80/ 4/ 6 1020.3F 0
WINTHROP HARBOR 66 70 N/A 0
WAUKEGAN HARBOR 67 70 N/A 0
WILMETTE BUOY 71 70/ 4/ 6 1022.3R 1
CHICAGO BUOY 70 65 10/ 2/ 6 1020.4 1
HARRISON CRIB 70 50/ 3/ 4 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 65 100/ 5/ 6 1018.4F
ST. JOSEPH BUOY 66 68 50/ 6/ 10 1020.5F 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
GALESBURG* CLEAR 64 55 71 SE3 30.12F TC 18
MACOMB* CLEAR 58 55 89 E5 30.12F TC 15
JACKSONVILLE* CLEAR 57 52 83 E3 30.10F TC 14
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
PONTIAC CLEAR 51 49 93 CALM 30.13S TC 10
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
LACON* CLEAR 57 53 88 CALM 30.12S TC 14
LINCOLN* CLEAR 59 55 88 CALM 30.12S TC 15
SPRINGFIELD CLEAR 57 55 93 CALM 30.10F TC 14
TAYLORVILLE CLEAR 63 52 67 MISG 30.10F TC 17
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
DANVILLE* CLEAR 56 54 92 N3 30.10S TC 13
RANTOUL* CLEAR 62 55 75 CALM 30.11S TC 17
MATTOON CLEAR 60 51 72 NW3 30.09F TC 16
PARIS* CLEAR 53 50 89 CALM 30.10S TC 12
ILZ079-100>102-170900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 62 56 82 MISG 30.09S TC 17
CAHOKIA* CLEAR 65 58 78 CALM 30.08 TC 18
SPARTA* CLEAR 68 61 78 E6 30.08S TC 20
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
CAIRO* CLEAR 68 65 90 CALM 30.04S TC 20
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
SALEM* CLEAR 64 55 72 CALM 30.09S TC 18
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
FLORA* CLEAR 61 57 88 N3 30.09S TC 16
FAIRFIELD* CLEAR 64 56 75 CALM 30.07F TC 18
HARRISBURG* CLEAR 63 58 84 MISG 30.07S TC 17
ROBINSON* CLEAR 55 54 94 NW1 30.08S TC 13
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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