471
ASUS43 KLOT 272212
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 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.
ILZ001-002-007-009-015-016-024-272300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 73 53 49 CALM 30.06F TC 23
STERLING* MOSUNNY 78 49 35 W5 30.06F TC 26
SAVANNA* MOSUNNY 75 52 44 W3 30.07S TC 24
ILZ003-004-008-010-011-017-018-272300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 72 51 47 NW7 30.08S TC 22
FREEPORT* PTSUNNY 73 51 45 NE5 30.09F TC 23
ROCHELLE* PTSUNNY 71 46 41 NE6 30.07S TC 22
DE KALB* MOSUNNY 69 51 52 NE7 30.08S TC 21
PERU* PTSUNNY 79 45 29 NE7 30.05S TC 26
ILZ005-006-012>014-019>023-272300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 69 48 47 NE8 30.06F TC 21
CHICAGO-MIDWAY PTSUNNY 68 48 48 NE10 30.07S TC 20
AURORA MOSUNNY 67 49 52 N5 30.06S TC 19
JOLIET* MOSUNNY 74 45 34 NE3 30.06S TC 24
WAUKEGAN MOSUNNY 64 53 67 NE5 30.07F TC 18
DUPAGE AIRPORT MOSUNNY 71 51 49 N7 30.07S TC 22
KANKAKEE* SUNNY 71 46 39 NE10 30.06S TC 22
WHEELING MOSUNNY 68 49 50 NE8 30.09S TC 20
LANSING* SUNNY 66 50 57 NE7 30.08S TC 19
NORTHERLY ISL* N/A 65 54 67 NE5 N/A TC 18
LMZ740>746-272300-
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/ 8/ 12 1017.7 1/ 2
WAUKEGAN HARBOR 65 64 360/ 8/ 12 1018.5 1/ 2
WILMETTE BUOY 65 40/ 10/ 12 1021.0F 1
CHICAGO BUOY 65 64 20/ 8/ 10 1017.3 1/ 2
HARRISON CRIB 65 20/ 9/ 10 N/A
NORTHERLY ISL 66 350/ 6/ 9 N/A
CALUMET HARBOR 65 360/ 7/ 11 1018.5F
MICHIGAN CITY 66 10/ 7/ 8 1017.4F
MICH CITY BUOY 62 63 360/ 6/ 8 N/A 1
ST. JOSEPH BUOY 56 55 10/ 2/ 2 1018.9F 0
ILZ025>027-034>036-040-047-049-050-058-095>099-272300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 65 61 87 NW6 30.06S TC 18
GALESBURG* PTSUNNY 74 52 44 CALM 30.07S TC 24
MACOMB* PTSUNNY 72 52 48 CALM 30.08S TC 22
JACKSONVILLE* PTSUNNY 69 55 61 NW6 30.05S TC 21
PITTSFIELD* CLOUDY 71 55 57 NE5 30.07S TC 22
ILZ028>032-037-038-041>044-048-051>054-059>061-272300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOSUNNY 73 42 33 CALM 30.05S TC 23
BLOOMINGTON MOSUNNY 77 42 28 N12 30.05F TC 25
DECATUR PTSUNNY 73 44 35 NE6 30.03F TC 23
PEORIA PTSUNNY 74 50 42 N5 30.05F TC 23
LACON* PTSUNNY 73 47 39 N3 30.05R TC 23
LINCOLN* PTSUNNY 74 48 39 NE3 30.04S TC 23
SPRINGFIELD PTSUNNY 73 51 46 NW5 30.04F TC 23
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-272300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 74 44 34 N3 30.03F TC 23
RANTOUL* SUNNY 74 41 30 NE6 30.04R TC 24
MATTOON MOSUNNY 73 41 31 N7 30.02S TC 23
PARIS* SUNNY 75 46 34 N3 30.02F TC 24
ILZ079-100>102-272300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTSUNNY 73 52 46 N3 30.03F TC 23
BELLEVILLE CLOUDY 74 53 48 N5 30.01S TC 23
CAHOKIA* MOSUNNY 76 52 43 N3 30.02F TC 24
SPARTA* MOSUNNY 75 46 35 CALM 30.03F TC 24
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-272300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 72 57 60 NW6 30.01F TC 22
CAIRO* SUNNY 81 47 30 CALM 29.99S HX 80 TC 27
EFFINGHAM* PTSUNNY 76 40 27 CALM 30.03S TC 24
MT. VERNON MOSUNNY 78 41 26 NE7 30.01F TC 26
CENTRALIA* PTSUNNY 77 43 30 NE5 30.02S TC 25
SALEM* PTSUNNY 80 48 33 MISG 30.01S TC 26
METROPOLIS* PTSUNNY 81 47 29 N6 29.99S HX 80 TC 27
ILZ067-068-072-073-078-083-087-091-272300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 76 42 29 N9 30.01S TC 24
FLORA* CLOUDY 75 45 33 CALM 30.02S TC 24
FAIRFIELD* PTSUNNY 76 42 29 N8 30.01R TC 24
HARRISBURG* PTSUNNY 75 46 35 CALM 30.00F TC 24
ROBINSON* MOSUNNY 75 43 31 NE9 30.01S 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