304
ASUS43 KLOT 050401
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM 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.
ILZ001-002-007-009-015-016-024-050500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 81 75 82 E6 29.92R HX 87 TC 27
STERLING* CLEAR 78 76 93 CALM 29.94F HX 81 TC 26
SAVANNA* PTCLDY 81 75 81 CALM 29.93S HX 86 TC 27
ILZ003-004-008-010-011-017-018-050500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 79 75 87 SE3 29.93F HX 83 TC 26
FREEPORT* CLEAR 77 76 95 SW5 29.94F TC 25
ILZ005-006-012>014-019>023-050500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 79 73 82 N3 29.91F HX 82 TC 26
CHICAGO-MIDWAY PTCLDY 86 74 67 CALM 29.90F HX 94 TC 30
AURORA PTCLDY 79 76 90 SW6 29.92F HX 83 TC 26
JOLIET* PTCLDY 80 79 96 CALM 29.93F HX 86 TC 27
WAUKEGAN MOCLDY 75 72 90 SW5 29.92F TC 24
DUPAGE AIRPORT MOCLDY 83 76 79 SW7 29.92F HX 91 TC 28
WHEELING MOCLDY 76 74 93 E3 29.93F TC 24
LANSING* PTCLDY 79 74 87 CALM 29.92F HX 82 TC 26
NORTHERLY ISL* N/A 77 71 82 MISG N/A TC 25
LMZ740>746-050500-
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 70 260/ 4/ 6 1010.3F 1/ 3
WAUKEGAN HARBOR 73 70 280/ 6/ 12 1014.4R 1/ 3
WILMETTE BUOY 71 220/ 4/ 14 1016.0F 1/ 2
CHICAGO BUOY 75 74 1011.9F 1
HARRISON CRIB 77 CALM N/A
NORTHERLY ISL 76 CALM / 10 N/A
CALUMET HARBOR 81 330/ 3/ 4 1013.4
MICHIGAN CITY 82 110/ 2/ 2 1011.3F
MICH CITY BUOY 77 74 140/ 4/ 4 N/A 0
ST. JOSEPH BUOY 78 74 100/ 6/ 8 1013.8F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-050500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 77 72 84 S5 29.93S TC 25
MACOMB* CLEAR 76 76 100 CALM 29.96S TC 24
ILZ028>032-037-038-041>044-048-051>054-059>061-050500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 79 75 87 CALM 29.96S HX 83 TC 26
DECATUR CLEAR 78 74 87 CALM 29.95S HX 81 TC 26
PEORIA CLEAR 79 76 90 CALM 29.93S HX 83 TC 26
LINCOLN* CLEAR 80 78 94 CALM 29.94S HX 85 TC 27
SPRINGFIELD CLEAR 78 74 87 CALM 29.94R HX 81 TC 26
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-050500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 78 75 90 SE3 29.95S HX 81 TC 26
MATTOON CLEAR 82 72 71 S7 29.94S HX 87 TC 28
ILZ079-100>102-050500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 78 74 86 CALM 29.94S HX 80 TC 26
CAHOKIA* CLEAR 81 73 76 CALM 29.93S HX 86 TC 27
SPARTA* CLEAR 86 70 59 S6 29.96S HX 90 TC 30
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-050500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* CLEAR 77 74 90 CALM 29.96S TC 25
MT. VERNON CLEAR 76 73 91 CALM 29.95F TC 24
CENTRALIA* CLEAR 79 71 76 SW5 29.95S HX 82 TC 26
SALEM* CLEAR 80 73 78 MISG 29.95S HX 84 TC 27
ILZ067-068-072-073-078-083-087-091-050500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 80 76 87 NW3 29.94S HX 86 TC 27
FAIRFIELD* CLEAR 78 71 77 CALM 29.94F HX 80 TC 26
HARRISBURG* CLEAR 79 74 86 CALM 29.95F 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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