658
ASUS43 KLOT 281606
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM CDT MON SEP 28 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.
ILZ001-002-007-009-015-016-024-281700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 68 57 68 NE3 30.13S TC 20
STERLING* SUNNY 68 51 54 CALM 30.14F TC 20
SAVANNA* SUNNY 67 58 72 CALM 30.13F TC 20
ILZ003-004-008-010-011-017-018-281700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 66 54 65 W5 30.14S TC 19
FREEPORT* CLOUDY 66 58 74 CALM 30.15F TC 19
ROCHELLE* MOSUNNY 67 51 56 CALM 30.14S TC 20
DE KALB* SUNNY 66 52 60 N5 30.13S TC 19
ILZ005-006-012>014-019>023-281700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 67 57 70 N8 30.11S TC 19
CHICAGO-MIDWAY PTSUNNY 68 58 70 NE6 30.11S TC 20
AURORA SUNNY 67 53 61 NE3 30.12S TC 19
JOLIET* SUNNY 69 58 68 CALM 30.12F TC 21
WAUKEGAN MOSUNNY 66 58 75 NE6 30.11F TC 19
DUPAGE AIRPORT SUNNY 66 57 72 NE5 30.12F TC 19
KANKAKEE* SUNNY 69 57 65 CALM 30.12F TC 20
WHEELING CLOUDY 65 58 78 N5 30.13S TC 18
LANSING* SUNNY 69 58 69 NE5 30.11S TC 20
NORTHERLY ISL* N/A 67 58 72 MISG N/A TC 19
LMZ740>746-281700-
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 63 65 340/ 6/ 19 1018.7R 1/ 4
WAUKEGAN HARBOR 64 64 330/ 6/ 10 1019.5R 1/ 4
WILMETTE BUOY 63 350/ 8/ 12 1021.7R 2/ 4
CHICAGO BUOY 63 63 350/ 8/ 12 1018.6R 2/ 4
NORTHERLY ISL 67 330/ 6/ 10 N/A
CALUMET HARBOR 64 330/ 7/ 10 1019.6
MICHIGAN CITY 64 10/ 3/ 4 1018.6F
MICH CITY BUOY 60 61 30/ 4/ 6 N/A 1/ 4
ST. JOSEPH BUOY 57 60 360/ 4/ 4 1020.1R 1/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-281700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 71 52 50 CALM 30.11F TC 22
GALESBURG* SUNNY 69 54 57 E5 30.14F TC 21
MACOMB* SUNNY 69 54 57 E5 30.15F TC 21
JACKSONVILLE* SUNNY 69 51 54 CALM 30.12F TC 20
PITTSFIELD* SUNNY 71 49 46 E5 30.13S TC 22
ILZ028>032-037-038-041>044-048-051>054-059>061-281700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON SUNNY 67 54 63 NE7 30.13F TC 19
DECATUR SUNNY 66 53 63 E7 30.12S TC 19
PEORIA SUNNY 67 51 56 NE8 30.13S TC 19
LACON* SUNNY 64 53 67 NE5 30.12F TC 18
LINCOLN* MOSUNNY 68 51 54 E7 30.13S TC 20
SPRINGFIELD SUNNY 68 51 54 NE8 30.12F TC 20
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-281700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 62 55 77 NE5 30.12F TC 17
RANTOUL* CLOUDY 61 60 97 E5 30.12F TC 16
MATTOON SUNNY 65 55 70 VRB5 30.11F TC 18
PARIS* SUNNY 69 55 60 NE3 30.10F TC 21
ILZ079-100>102-281700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 72 46 40 NE9 30.10F TC 22
BELLEVILLE MOSUNNY 73 52 46 CALM 30.08F TC 23
CAHOKIA* SUNNY 73 47 39 E5 30.10F TC 23
SPARTA* MOSUNNY 73 47 39 NE5 30.11S TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-281700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 72 52 49 VRB3 30.09S TC 22
CAIRO* SUNNY 74 48 39 NE3 30.09S TC 24
EFFINGHAM* SUNNY 68 51 55 NW5 30.12F TC 20
MT. VERNON SUNNY 74 49 41 CALM 30.09F TC 23
CENTRALIA* SUNNY 72 51 48 NW3 30.10S TC 22
SALEM* SUNNY 73 53 49 MISG 30.10S TC 23
METROPOLIS* SUNNY 75 45 34 E3 30.08F TC 24
ILZ067-068-072-073-078-083-087-091-281700-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 70 53 54 CALM 30.10S TC 21
FLORA* SUNNY 70 54 56 N3 30.10F TC 21
FAIRFIELD* SUNNY 71 50 46 CALM 30.09F TC 22
HARRISBURG* SUNNY 73 51 47 CALM 30.09S TC 23
ROBINSON* SUNNY 72 54 53 VRB2 30.09F TC 22
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