226
ASUS43 KLOT 041006
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 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.
ILZ001-002-007-009-015-016-024-041100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 75 71 87 CALM 29.89R TC 24
STERLING* CLEAR 73 73 100 CALM 29.92S TC 23
SAVANNA* CLEAR 74 72 92 CALM 29.90S TC 24
ILZ003-004-008-010-011-017-018-041100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 74 71 91 S7 29.91F TC 23
FREEPORT* PTCLDY 75 74 95 S6 29.93F TC 24
ROCHELLE* PTCLDY 72 70 94 S5 29.92F TC 22
DE KALB* CLEAR 73 73 99 SW7 29.93F TC 23
ILZ005-006-012>014-019>023-041100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 80 72 76 SW8 29.89F HX 84 TC 27
CHICAGO-MIDWAY CLEAR 79 71 76 SW8 29.89F HX 82 TC 26
AURORA CLEAR 71 71 100 SW3 29.91F TC 22
JOLIET* CLEAR 77 74 92 CALM 29.92F TC 25
WAUKEGAN PTCLDY 72 72 100 CALM 29.90R TC 22
DUPAGE AIRPORT CLEAR 78 73 84 SW12 29.90F HX 81 TC 26
KANKAKEE* CLEAR 73 71 95 CALM 29.95S TC 23
WHEELING CLEAR 77 73 87 CALM 29.90S TC 25
ROMEOVILLE* CLEAR 75 75 100 S6 29.92F TC 24
LANSING* CLEAR 74 72 91 SW8 29.92F TC 24
NORTHERLY ISL* N/A 81 69 67 S6 N/A HX 84 TC 27
LMZ740>746-041100-
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 71 74 260/ 4/ 6 1014.1 1
WAUKEGAN HARBOR 73 71 330/ 4/ 6 1013.4 0
WILMETTE BUOY 73 90/ 4/ 4 1015.3R 1
NORTHERLY ISL 81 230/ 4/ 5 N/A
CALUMET HARBOR 80 200/ 7/ 10 1012.7
MICH CITY BUOY 78 74 200/ 8/ 10 N/A 1/ 2
ST. JOSEPH BUOY 77 74 190/ 8/ 10 1013.7R 1/ 2
ILZ025>027-034>036-040-047-049-050-058-095>099-041100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 76 70 82 S8 29.93R TC 24
GALESBURG* CLEAR 74 71 88 S6 29.94R TC 24
MACOMB* CLEAR 76 73 90 SW7 29.95R TC 25
JACKSONVILLE* CLEAR 78 70 77 S6 29.94R HX 80 TC 26
ILZ028>032-037-038-041>044-048-051>054-059>061-041100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 72 72 100 CALM 29.94F TC 22
BLOOMINGTON CLEAR 74 71 91 S7 29.97R TC 23
DECATUR CLEAR 77 70 79 SW5 29.96R TC 25
PEORIA CLEAR 77 70 79 S5 29.93R TC 25
LACON* CLEAR 77 68 74 SE3 29.92S TC 25
LINCOLN* PTCLDY 75 72 89 CALM 29.95R TC 24
SPRINGFIELD CLEAR 80 70 71 SW5 29.94R HX 83 TC 27
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-041100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 74 71 91 S5 29.97R TC 23
RANTOUL* CLEAR 75 71 88 CALM 29.97S TC 24
MATTOON CLEAR 80 70 71 S5 29.97R HX 83 TC 27
PARIS* CLEAR 72 71 96 CALM 29.98R TC 22
ILZ079-100>102-041100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 77 71 81 CALM 29.96S TC 25
CAHOKIA* CLEAR 74 71 91 CALM 29.95R TC 23
SPARTA* CLEAR 79 71 77 S3 29.98S HX 82 TC 26
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-041100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLEAR 76 76 100 CALM 29.98R TC 25
EFFINGHAM* CLEAR 73 71 94 CALM 29.99R TC 23
MARION CLEAR 75 75 100 S1 29.97S TC 24
MT. VERNON CLEAR 71 71 100 CALM 29.98R TC 22
CENTRALIA* CLEAR 74 71 91 MISG 29.97S TC 23
SALEM* CLEAR 77 73 87 MISG 29.97S TC 25
METROPOLIS* CLEAR 73 73 98 CALM 29.98S TC 23
ILZ067-068-072-073-078-083-087-091-041100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 74 71 91 CALM 29.97S TC 23
FLORA* CLEAR 73 72 94 CALM 29.97S TC 23
FAIRFIELD* CLEAR 73 69 88 CALM 29.98R TC 23
HARRISBURG* CLEAR 73 73 98 CALM 29.98R TC 23
ROBINSON* CLEAR 70 70 100 E1 29.97S TC 21
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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