218
ASUS43 KLOT 041301
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 AM CDT FRI SEP 04 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.
ILZ001-002-007-009-015-016-024-041400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 79 71 76 SW7 29.91R HX 82 TC 26
STERLING* SUNNY 78 73 84 SW5 29.93R HX 81 TC 26
SAVANNA* SUNNY 76 73 90 CALM 29.91R TC 24
ILZ003-004-008-010-011-017-018-041400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 78 71 79 SE3 29.94R HX 80 TC 26
FREEPORT* SUNNY 79 76 92 SW9 29.94R HX 83 TC 26
ILZ005-006-012>014-019>023-041400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 78 73 84 NE9 29.95R HX 81 TC 26
CHICAGO-MIDWAY MOSUNNY 81 71 71 N5 29.95R HX 85 TC 27
AURORA SUNNY 78 72 81 CALM 29.94R HX 80 TC 26
JOLIET* SUNNY 80 74 82 CALM 29.94R HX 85 TC 27
WAUKEGAN PTSUNNY 72 71 97 NE6 29.98R TC 22
DUPAGE AIRPORT MOSUNNY 79 72 79 NE6 29.95R HX 82 TC 26
WHEELING MOSUNNY 75 72 90 NE5 29.97R TC 24
LANSING* SUNNY 78 71 80 CALM 29.96R TC 25
NORTHERLY ISL* N/A 78 72 81 N3 N/A HX 80 TC 26
LMZ740>746-041400-
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 74 73 360/ 8/ 12 1015.4R 2/ 4
WAUKEGAN HARBOR 73 71 360/ 6/ 8 1014.7 1/ 3
WILMETTE BUOY 75 80/ 12/ 14 1017.1R 1/ 3
NORTHERLY ISL 79 320/ 4/ 6 N/A
CALUMET HARBOR 79 200/ 4/ 5 1014.0R
MICH CITY BUOY 77 74 220/ 4/ 4 N/A 1
ST. JOSEPH BUOY 76 74 270/ 6/ 10 1015.5R 1
ILZ025>027-034>036-040-047-049-050-058-095>099-041400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 80 70 71 SW9 29.97R HX 83 TC 27
MACOMB* SUNNY 78 74 86 SW9 29.97S HX 81 TC 26
ILZ028>032-037-038-041>044-048-051>054-059>061-041400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON SUNNY 79 72 79 SW10 29.99R HX 82 TC 26
DECATUR SUNNY 81 71 71 SW8 29.98R HX 85 TC 27
PEORIA SUNNY 78 72 81 SW7 29.95R HX 80 TC 26
LINCOLN* SUNNY 80 73 78 SW3 29.97R HX 84 TC 27
SPRINGFIELD SUNNY 81 70 69 SW6 29.97R HX 84 TC 27
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-041400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 79 72 79 SW6 29.99R HX 82 TC 26
MATTOON SUNNY 81 71 71 SW9 29.99R HX 85 TC 27
ILZ079-100>102-041400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 81 73 78 S3 29.99R HX 85 TC 27
CAHOKIA* SUNNY 81 71 71 VRB3 29.99R HX 85 TC 27
SPARTA* SUNNY 81 72 73 CALM 30.02R HX 86 TC 27
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-041400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 79 73 83 CALM 30.00R HX 82 TC 26
EFFINGHAM* SUNNY 79 73 81 S5 30.01S HX 82 TC 26
MT. VERNON SUNNY 79 73 82 CALM 30.00S HX 82 TC 26
CENTRALIA* SUNNY 82 74 77 MISG 30.00S HX 88 TC 28
SALEM* SUNNY 82 74 77 MISG 30.01R HX 88 TC 28
ILZ067-068-072-073-078-083-087-091-041400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 79 71 76 CALM 30.00R HX 82 TC 26
FAIRFIELD* SUNNY 79 71 75 CALM 30.00S HX 82 TC 26
HARRISBURG* SUNNY 79 75 88 CALM 30.02R HX 82 TC 26
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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