133
ASUS43 KLOT 272101
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 PM 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.
ILZ001-002-007-009-015-016-024-272200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 72 53 51 CALM 30.07S TC 22
STERLING* PTSUNNY 78 49 35 NE5 30.07F TC 26
SAVANNA* PTSUNNY 75 51 43 W5 30.08S TC 24
ILZ003-004-008-010-011-017-018-272200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 73 49 42 CALM 30.08F TC 23
FREEPORT* PTSUNNY 73 50 43 E5 30.10S TC 23
DE KALB* PTSUNNY 72 48 43 CALM 30.08F TC 22
ILZ005-006-012>014-019>023-272200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 70 48 45 NE8 30.07F TC 21
CHICAGO-MIDWAY PTSUNNY 70 51 51 NE10 30.07F TC 21
AURORA MOSUNNY 72 46 39 N8 30.06F TC 22
JOLIET* MOSUNNY 75 48 38 NE6 30.06F TC 24
WAUKEGAN MOSUNNY 67 53 61 E7 30.08F TC 19
DUPAGE AIRPORT MOSUNNY 72 47 40 E5 30.07F TC 22
WHEELING MOSUNNY 69 49 48 VRB6 30.09F TC 21
LANSING* SUNNY 68 48 48 NE8 30.08F TC 20
NORTHERLY ISL* N/A 67 52 58 N8 N/A TC 19
LMZ740>746-272200-
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 65 65 10/ 10/ 12 1018.0S 1/ 2
WAUKEGAN HARBOR 65 65 10/ 8/ 12 1018.7F 1/ 2
WILMETTE BUOY 65 20/ 8/ 10 1021.5F 1
CHICAGO BUOY 65 65 20/ 8/ 12 1017.5F 1/ 2
HARRISON CRIB 65 10/ 9/ 10 N/A
NORTHERLY ISL 68 20/ 6/ 8 N/A
CALUMET HARBOR 65 360/ 7/ 9 1018.7
MICHIGAN CITY 66 350/ 7/ 7 1017.6F
MICH CITY BUOY 60 63 360/ 6/ 8 N/A 0
ST. JOSEPH BUOY 56 54 330/ 4/ 6 1019.1F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-272200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 66 59 78 W7 30.06F TC 19
MACOMB* CLOUDY 72 54 53 CALM 30.08F TC 22
ILZ028>032-037-038-041>044-048-051>054-059>061-272200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 78 43 28 N7 30.06F TC 26
DECATUR PTSUNNY 77 39 25 VRB3 30.04F TC 25
PEORIA PTSUNNY 73 49 42 N5 30.06F TC 23
SPRINGFIELD PTSUNNY 74 51 44 W7 30.05F TC 23
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-272200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 75 43 31 NE5 30.04F TC 24
MATTOON PTSUNNY 75 40 28 N8 30.02F TC 24
ILZ079-100>102-272200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTSUNNY 75 55 50 N6 30.04F TC 24
CAHOKIA* MOSUNNY 76 52 43 NE7 30.03F TC 24
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-272200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 66 57 72 NW7 30.02S TC 19
EFFINGHAM* PTSUNNY 76 40 27 CALM 30.04S TC 24
MT. VERNON PTSUNNY 77 47 34 NE7 30.02F TC 25
CENTRALIA* PTSUNNY 78 45 31 NE5 30.02F TC 26
SALEM* PTSUNNY 78 49 35 MISG 30.02F TC 26
ILZ067-068-072-073-078-083-087-091-272200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTSUNNY 76 40 27 N10 30.01F TC 24
FAIRFIELD* PTSUNNY 78 42 27 N7 30.01F TC 25
HARRISBURG* PTSUNNY 76 45 33 NE6 30.01F 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