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ASUS43 KLOT 270803
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 AM CDT SUN SEP 27 2026
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.
ILZ001-002-007-009-015-016-024-270900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 60 54 80 E7 30.09F TC 16
STERLING* PTCLDY 49 48 97 E5 30.12F TC 9
ILZ003-004-008-010-011-017-018-270900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 48 47 96 CALM 30.14F TC 9
FREEPORT* PTCLDY 48 47 95 CALM 30.14F TC 9
ILZ005-006-012>014-019>023-270900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 51 48 89 CALM 30.11S TC 11
CHICAGO-MIDWAY PTCLDY 53 51 93 NW3 30.12S TC 12
AURORA PTCLDY 48 48 100 CALM 30.11F TC 9
WAUKEGAN FOG 46 46 100 CALM 30.11F VSB 3/4 TC 8
DUPAGE AIRPORT CLEAR 48 46 93 CALM 30.12F TC 9
WHEELING CLEAR 50 48 93 CALM 30.13F TC 10
LANSING* PTCLDY 48 47 99 CALM 30.12F FOG TC 9
NORTHERLY ISL* N/A 58 55 90 E1 N/A TC 14
LMZ740>746-270900-
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)
WINTHROP HARBOR 61 65 250/ 4/ 8 1018.6F 1/ 3
WAUKEGAN HARBOR 58 63 290/ 6/ 8 1019.4F 1/ 3
WILMETTE BUOY 64 90/ 8/ 10 1021.6S 1/ 3
CHICAGO BUOY 63 63 100/ 8/ 10 1018.4F 2/ 3
HARRISON CRIB 62 100/ 5/ 6 N/A
NORTHERLY ISL 58 90/ 3/ 5 N/A
CALUMET HARBOR 60 80/ 3/ 4 1019.8
MICHIGAN CITY 54 100/ 3/ 4 1019.3F
MICH CITY BUOY 58 62 90/ 4/ 6 N/A 1/ 3
ST. JOSEPH BUOY 53 53 50/ 4/ 4 1020.3F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-270900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY LGT RAIN 59 57 93 CALM 30.08R TC 15
ILZ028>032-037-038-041>044-048-051>054-059>061-270900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTCLDY 51 50 96 NE7 30.11S TC 11
DECATUR PTCLDY 51 49 92 CALM 30.08F TC 11
PEORIA PTCLDY 56 51 84 E7 30.09S TC 13
SPRINGFIELD MOCLDY 60 57 89 CALM 30.07S TC 16
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-270900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 53 47 79 E6 30.09F TC 12
MATTOON PTCLDY 56 48 74 E3 30.06F TC 13
ILZ079-100>102-270900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* CLOUDY 59 58 96 CALM 30.06S TC 15
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-270900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
MT. VERNON CLOUDY 60 55 83 CALM 30.05S TC 16
ILZ067-068-072-073-078-083-087-091-270900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 56 49 77 NE7 30.05F TC 13
FAIRFIELD* MOCLDY 62 51 68 N3 30.05S TC 17
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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