626
ASUS43 KLOT 261812
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 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.
ILZ001-002-007-009-015-016-024-261900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 71 49 45 S8 30.17F TC 22
6HR MIN TEMP: 53; 6HR MAX TEMP: 71;
STERLING* SUNNY 70 49 47 E7 30.20F TC 21
SAVANNA* MOSUNNY 70 51 50 SE8 30.19F TC 21
ILZ003-004-008-010-011-017-018-261900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 69 49 48 E8 30.22F TC 21
6HR MIN TEMP: 48; 6HR MAX TEMP: 69;
FREEPORT* SUNNY 69 51 52 S5 30.23F TC 21
ROCHELLE* MOSUNNY 68 50 51 E8 30.22S TC 20
DE KALB* PTSUNNY 67 49 52 SE3 30.22F TC 19
PERU* MOSUNNY 70 50 49 E7 30.19F TC 21
ILZ005-006-012>014-019>023-261900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 68 47 46 CALM 30.21F TC 20
6HR MIN TEMP: 53; 6HR MAX TEMP: 68;
CHICAGO-MIDWAY PTSUNNY 68 47 46 E8 30.21F TC 20
6HR MIN TEMP: 55; 6HR MAX TEMP: 68;
AURORA PTSUNNY 67 48 50 NE6 30.21F TC 19
6HR MIN TEMP: 47; 6HR MAX TEMP: 68;
JOLIET* MOSUNNY 70 48 45 SE3 30.21F TC 21
WAUKEGAN SUNNY 63 49 60 E8 30.23F TC 17
6HR MIN TEMP: 45; 6HR MAX TEMP: 64;
DUPAGE AIRPORT NOT AVBL
KANKAKEE* MOSUNNY 70 46 43 E9 30.20F HAZE TC 21
WHEELING SUNNY 66 47 50 VRB6 30.23F TC 19
6HR MIN TEMP: 47; 6HR MAX TEMP: 67;
LANSING* SUNNY 68 45 42 SE5 30.21F TC 20
NORTHERLY ISL* N/A 64 51 62 NE6 N/A TC 18
LMZ740>746-261900-
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 30/ 6/ 12 1022.0 2/ 4
WAUKEGAN HARBOR 61 64 50/ 6/ 10 1022.8 2/ 4
WILMETTE BUOY 62 80/ 8/ 10 1025.6F 2/ 4
CHICAGO BUOY 62 64 60/ 6/ 8 1022.2 2/ 4
HARRISON CRIB 61 70/ 5/ 5 N/A
NORTHERLY ISL 63 60/ 5/ 5 N/A
CALUMET HARBOR 64 50/ 6/ 8 1023.5F
MICHIGAN CITY 63 10/ 8/ 8 1022.6F
MICH CITY BUOY 59 61 10/ 8/ 10 N/A 1
ST. JOSEPH BUOY 53 52 10/ 6/ 6 1024.2F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-261900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 61 56 83 E7 30.18S TC 16
GALESBURG* CLOUDY 68 55 63 SE5 30.20S TC 20
MACOMB* CLOUDY 65 55 68 S5 30.21S TC 19
JACKSONVILLE* CLOUDY 67 50 53 CALM 30.17F TC 20
PITTSFIELD* LGT RAIN 64 56 75 CALM 30.19S TC 18
ILZ028>032-037-038-041>044-048-051>054-059>061-261900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOSUNNY 72 46 40 E5 30.19F TC 22
BLOOMINGTON MOSUNNY 71 50 47 E8 30.20F TC 22
DECATUR MOSUNNY 73 47 39 CALM 30.18F TC 23
PEORIA CLOUDY 70 50 49 VRB3 30.18F TC 21
6HR MIN TEMP: 58; 6HR MAX TEMP: 71;
LACON* SUNNY 71 46 40 S3 30.18F TC 22
SPRINGFIELD CLOUDY 71 50 47 VRB3 30.17F TC 22
6HR MIN TEMP: 58; 6HR MAX TEMP: 71;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-261900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 71 48 43 N5 30.18F TC 22
RANTOUL* MOSUNNY 71 43 35 E3 30.19F TC 22
MATTOON MOSUNNY 74 46 36 VRB6 30.17F TC 23
PARIS* MOSUNNY 72 46 38 NE3 30.18F TC 22
ILZ079-100>102-261900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOSUNNY 70 52 52 E7 30.18 TC 21
BELLEVILLE PTSUNNY 73 51 45 S5 30.14S TC 23
CAHOKIA* PTSUNNY 68 55 63 CALM 30.15F TC 20
SPARTA* CLOUDY 72 47 41 CALM 30.16F TC 22
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-261900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* PTSUNNY 78 49 36 E6 30.13F TC 26
EFFINGHAM* PTSUNNY 73 46 37 CALM 30.19S TC 23
MARION PTSUNNY 72 48 43 SE6 30.15F TC 22
MT. VERNON CLOUDY 71 47 42 CALM 30.16F TC 22
CENTRALIA* CLOUDY 70 49 46 CALM 30.17S TC 21
SALEM* CLOUDY 71 52 51 MISG 30.17F TC 22
METROPOLIS* CLOUDY 73 47 39 CALM 30.14F TC 23
ILZ067-068-072-073-078-083-087-091-261900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 74 47 38 VRB3 30.16F TC 23
FLORA* PTSUNNY 73 50 43 S3 30.17F TC 23
FAIRFIELD* CLOUDY 71 46 39 NE3 30.16F TC 22
HARRISBURG* PTSUNNY 71 49 45 CALM 30.16F TC 22
ROBINSON* MOSUNNY 75 48 38 E6 30.16F TC 24
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