675
ASUS43 KLOT 291801
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 PM CDT TUE SEP 29 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.
ILZ001-002-007-009-015-016-024-291900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 78 51 38 VRB7 29.95F TC 26
6HR MIN TEMP: 44; 6HR MAX TEMP: 78;
STERLING* MOSUNNY 79 49 34 VRB6 29.99F TC 26
SAVANNA* MOSUNNY 77 53 42 SW9 29.97F TC 25
ILZ003-004-008-010-011-017-018-291900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 75 46 35 S9G18 30.00F TC 24
6HR MIN TEMP: 49; 6HR MAX TEMP: 77;
FREEPORT* MOSUNNY 77 50 38 S6 30.01F TC 25
DE KALB* SUNNY 76 49 39 S10G16 30.02F TC 24
ILZ005-006-012>014-019>023-291900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 75 50 41 SW9 30.01S TC 24
6HR MIN TEMP: 54; 6HR MAX TEMP: 75;
CHICAGO-MIDWAY MOSUNNY 76 51 41 S8 30.01F TC 24
6HR MIN TEMP: 53; 6HR MAX TEMP: 76;
AURORA SUNNY 76 50 40 S10 30.01F TC 24
6HR MIN TEMP: 47; 6HR MAX TEMP: 77;
JOLIET* SUNNY 77 53 43 SW7 30.02S TC 25
WAUKEGAN SUNNY 69 61 75 SE7 30.01S TC 21
6HR MIN TEMP: 47; 6HR MAX TEMP: 69;
DUPAGE AIRPORT SUNNY 75 53 46 SW9 30.02S TC 24
6HR MIN TEMP: 49; 6HR MAX TEMP: 75;
WHEELING MOSUNNY 75 52 44 SW8 30.02F TC 24
6HR MIN TEMP: 52; 6HR MAX TEMP: 75;
ROMEOVILLE* SUNNY 75 55 50 S8 30.02F TC 24
LANSING* SUNNY 76 53 44 S9 30.02F TC 25
NORTHERLY ISL* N/A 69 60 73 E6 N/A TC 21
LMZ740>746-291900-
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 64 65 90/ 8/ 10 1018.0F 1
WAUKEGAN HARBOR 64 66 90/ 8/ 10 1016.6F 1
WILMETTE BUOY 65 80/ 8/ 12 1018.9F 1
CHICAGO BUOY 65 64 110/ 8/ 12 1015.3F 1
HARRISON CRIB 65 110/ 10/ 11 N/A
NORTHERLY ISL 68 100/ 6/ 7 N/A
CALUMET HARBOR 70 50/ 5/ 8 1016.7
MICHIGAN CITY 70 10/ 4/ 5 1016.0
MICH CITY BUOY 64 62 30/ 4/ 4 N/A 0
ST. JOSEPH BUOY 63 64 CALM / 4 1018.0F 0
ILZ025>027-034>036-040-047-049-050-058-095>099-291900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 82 50 32 S10 29.97F HX 81 TC 28
MACOMB* MOSUNNY 81 51 34 S9 30.00F HX 80 TC 27
ILZ028>032-037-038-041>044-048-051>054-059>061-291900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 79 50 36 SW8 30.04S TC 26
DECATUR SUNNY 80 48 32 S8 30.02F TC 27
PEORIA MOSUNNY 78 51 38 S8 30.00F TC 26
6HR MIN TEMP: 51; 6HR MAX TEMP: 78;
SPRINGFIELD MOSUNNY 82 46 28 S9G17 30.00F HX 80 TC 28
6HR MIN TEMP: 45; 6HR MAX TEMP: 82;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-291900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 80 45 28 MISG 30.03F TC 27
MATTOON SUNNY 80 48 32 S9 30.03 TC 27
ILZ079-100>102-291900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 81 48 32 SW8 30.01F HX 80 TC 27
CAHOKIA* SUNNY 83 50 31 S7 30.00 HX 81 TC 28
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-291900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 82 46 28 S7 30.01F HX 81 TC 28
EFFINGHAM* SUNNY 79 41 26 SE6 30.05F TC 26
MT. VERNON SUNNY 83 46 27 VRB7 30.03F HX 81 TC 28
CENTRALIA* SUNNY 81 44 26 SE3 30.02F HX 80 TC 27
SALEM* SUNNY 82 49 31 MISG 30.02F HX 81 TC 28
ILZ067-068-072-073-078-083-087-091-291900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 78 51 38 MISG 30.04F TC 26
FAIRFIELD* SUNNY 81 46 29 S7 30.03F TC 27
HARRISBURG* SUNNY 82 50 32 SW5 30.03F HX 81 TC 28
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