389
ASUS43 KLOT 261703
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 PM CDT SAT SEP 26 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.
ILZ001-002-007-009-015-016-024-261800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 69 51 52 E8 30.18S TC 21
STERLING* MOSUNNY 70 51 51 E8 30.22S TC 21
SAVANNA* MOSUNNY 69 52 54 E10 30.20F TC 21
ILZ003-004-008-010-011-017-018-261800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 67 50 54 SE7 30.23F TC 19
FREEPORT* MOSUNNY 67 52 56 SE10 30.24S TC 20
DE KALB* PTSUNNY 65 49 55 SE7 30.24F TC 19
ILZ005-006-012>014-019>023-261800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 66 48 52 S5 30.22F TC 19
CHICAGO-MIDWAY PTSUNNY 67 47 48 E5 30.23F TC 19
AURORA MOSUNNY 66 49 54 E7 30.22F TC 19
JOLIET* MOSUNNY 68 48 48 SE7 30.22F TC 20
WAUKEGAN SUNNY 62 47 57 E7 30.24F TC 17
DUPAGE AIRPORT MOSUNNY 66 50 56 E7 30.22F TC 19
WHEELING MOSUNNY 66 47 50 E6 30.25F TC 19
LANSING* SUNNY 66 45 46 SE3 30.23F TC 19
NORTHERLY ISL* N/A 63 50 62 E5 N/A TC 17
LMZ740>746-261800-
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 64 40/ 6/ 10 1022.5F 2/ 4
WAUKEGAN HARBOR 61 64 80/ 6/ 8 1023.3F 2/ 4
WILMETTE BUOY 61 120/ 6/ 10 1026.0F 2/ 4
CHICAGO BUOY 61 64 120/ 4/ 6 1023.0F 2/ 4
HARRISON CRIB 62 110/ 3/ 4 N/A
NORTHERLY ISL 62 70/ 5/ 6 N/A
CALUMET HARBOR 62 50/ 6/ 8 1024.1
MICHIGAN CITY 65 350/ 6/ 7 1023.1F
MICH CITY BUOY 59 61 10/ 6/ 8 N/A 1
ST. JOSEPH BUOY 52 52 350/ 6/ 6 1024.8F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-261800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY LGT RAIN 62 56 80 SE5 30.18S TC 17
MACOMB* CLOUDY 65 55 71 S5 30.22R TC 18
ILZ028>032-037-038-041>044-048-051>054-059>061-261800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 70 52 52 E8 30.21F TC 21
DECATUR PTSUNNY 71 49 45 VRB5 30.19F TC 22
PEORIA MOSUNNY 68 53 58 NE6 30.19F TC 20
SPRINGFIELD PTSUNNY 69 51 52 SE5 30.18F TC 21
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-261800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 69 50 50 NE5 30.20F TC 21
MATTOON PTSUNNY 72 46 39 VRB5 30.18F TC 22
ILZ079-100>102-261800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOSUNNY 70 52 52 E7 30.18S TC 21
CAHOKIA* CLOUDY 67 53 61 S3 30.16S TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-261800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* PTSUNNY 69 50 50 CALM 30.20F TC 21
MARION PTSUNNY 70 48 46 E5 30.17S TC 21
MT. VERNON CLOUDY 71 48 43 VRB5 30.18F TC 22
CENTRALIA* CLOUDY 69 51 52 CALM 30.18F TC 21
SALEM* CLOUDY 70 50 49 MISG 30.18S TC 21
ILZ067-068-072-073-078-083-087-091-261800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTSUNNY 74 47 38 NE7 30.17F TC 23
FAIRFIELD* CLOUDY 69 49 48 CALM 30.17F TC 21
HARRISBURG* CLOUDY 71 49 46 CALM 30.17F TC 21
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page