675
ASUS43 KLOT 281805
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 PM 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.
ILZ001-002-007-009-015-016-024-281900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 73 51 46 E6 30.09F TC 23
6HR MIN TEMP: 48; 6HR MAX TEMP: 73;
STERLING* SUNNY 74 49 41 VRB5 30.11F TC 23
SAVANNA* SUNNY 73 59 60 W3 30.10F TC 23
ILZ003-004-008-010-011-017-018-281900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 73 49 42 VRB3 30.11F TC 23
6HR MIN TEMP: 48; 6HR MAX TEMP: 73;
FREEPORT* SUNNY 73 56 54 NE6 30.12F TC 23
DE KALB* SUNNY 72 47 41 CALM 30.11F TC 22
ILZ005-006-012>014-019>023-281900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 71 55 56 VRB6 30.09F TC 22
6HR MIN TEMP: 52; 6HR MAX TEMP: 72;
CHICAGO-MIDWAY MOSUNNY 71 53 52 E6 30.09F TC 22
6HR MIN TEMP: 52; 6HR MAX TEMP: 72;
AURORA SUNNY 72 52 49 SE5 30.09F TC 22
6HR MIN TEMP: 44; 6HR MAX TEMP: 72;
JOLIET* SUNNY 73 53 49 CALM 30.09F TC 23
WAUKEGAN SUNNY 69 57 65 VRB3 30.10F TC 21
6HR MIN TEMP: 50; 6HR MAX TEMP: 69;
DUPAGE AIRPORT SUNNY 71 51 49 CALM 30.10F TC 22
6HR MIN TEMP: 46; 6HR MAX TEMP: 71;
WHEELING MOSUNNY 70 53 54 E5 30.11F TC 21
6HR MIN TEMP: 50; 6HR MAX TEMP: 71;
ROMEOVILLE* SUNNY 72 55 56 CALM 30.09F TC 22
LANSING* MOSUNNY 71 57 62 NE6 30.10S TC 22
NORTHERLY ISL* N/A 69 59 70 N8 N/A TC 21
LMZ740>746-281900-
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 65 350/ 8/ 10 1018.7S 1/ 4
WAUKEGAN HARBOR 64 65 330/ 8/ 10 1019.2F 1/ 4
WILMETTE BUOY 64 10/ 8/ 10 1021.5F 2/ 4
CHICAGO BUOY 64 64 360/ 6/ 10 1018.2F 2/ 4
HARRISON CRIB 64 360/ 8/ 9 N/A
NORTHERLY ISL 68 20/ 5/ 9 N/A
CALUMET HARBOR 65 360/ 7/ 11 1019.3
MICHIGAN CITY 66 350/ 4/ 4 1018.2F
MICH CITY BUOY 60 61 350/ 4/ 6 N/A 1/ 4
ST. JOSEPH BUOY 57 60 320/ 6/ 6 1019.6F 1/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-281900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 74 49 41 E3 30.09F TC 23
MACOMB* SUNNY 73 50 43 W3 30.11F TC 23
ILZ028>032-037-038-041>044-048-051>054-059>061-281900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 72 51 47 VRB5 30.11F TC 22
DECATUR SUNNY 68 54 60 NW8 30.09F HAZE TC 20
PEORIA SUNNY 70 45 40 CALM 30.10F TC 21
6HR MIN TEMP: 49; 6HR MAX TEMP: 70;
SPRINGFIELD SUNNY 73 42 32 VRB3 30.09F TC 23
6HR MIN TEMP: 46; 6HR MAX TEMP: 74;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-281900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 70 54 56 VRB3 30.09F TC 21
MATTOON SUNNY 74 44 34 CALM 30.07F TC 23
ILZ079-100>102-281900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 77 46 33 N7 30.08F TC 25
CAHOKIA* SUNNY 76 47 35 N6 30.07F TC 24
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-281900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 79 45 29 N7 30.06F TC 26
EFFINGHAM* SUNNY 76 37 24 CALM 30.09F TC 24
MT. VERNON SUNNY 79 45 29 CALM 30.06F TC 26
CENTRALIA* SUNNY 78 44 29 NW5 30.07F TC 26
SALEM* SUNNY 77 50 38 MISG 30.07F TC 25
ILZ067-068-072-073-078-083-087-091-281900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 76 51 41 NW7 30.06F TC 24
FAIRFIELD* SUNNY 77 45 31 CALM 30.06F HAZE TC 25
HARRISBURG* SUNNY 79 46 31 NE3 30.06F TC 26
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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