411
ASUS43 KLOT 171601
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM CDT SAT OCT 17 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.
ILZ001-002-007-009-015-016-024-171700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 48 33 56 VRB5 30.56F TC 9
STERLING* SUNNY 51 31 46 VRB3 30.57F TC 11
SAVANNA* SUNNY 48 29 47 SE5 30.57S TC 9
ILZ003-004-008-010-011-017-018-171700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD SUNNY 49 33 54 S6 30.56F TC 9
FREEPORT* SUNNY 51 27 39 SE6 30.56F TC 10
DE KALB* SUNNY 49 36 60 CALM 30.55F TC 9
ILZ005-006-012>014-019>023-171700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 50 36 58 CALM 30.53F TC 10
CHICAGO-MIDWAY MOSUNNY 51 38 60 VRB5 30.54F TC 11
AURORA SUNNY 51 35 54 SE3 30.55F TC 11
JOLIET* SUNNY 51 39 65 CALM 30.56F TC 10
WAUKEGAN SUNNY 51 36 56 SW6 30.52F TC 11
DUPAGE AIRPORT SUNNY 49 35 58 CALM 30.55S TC 9
WHEELING SUNNY 50 36 58 CALM 30.55S TC 10
LANSING* SUNNY 49 36 61 CALM 30.56S TC 9
NORTHERLY ISL* N/A 52 38 58 N2 N/A TC 11
LMZ740>746-171700-
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 49 55 1036.1R
WAUKEGAN HARBOR 50 57 200/ 6/ 10 1031.4F 2/ 6
WILMETTE BUOY 49 1033.0R 4/ 7
CHICAGO BUOY 50 59 330/ 6/ 10 1032.6R 4/ 8
HARRISON CRIB 48 310/ 4/ 6 N/A
NORTHERLY ISL 51 340/ 3/ 7 N/A
CALUMET HARBOR 49 130/ 3/ 6 1034.1F
MICHIGAN CITY 50 30/ 2/ 3 1034.0F
MICH CITY BUOY 48 60 100/ 4/ 8 N/A 5/ 7
ST. JOSEPH BUOY 47 59 100/ 2/ 4 1034.4R 4/ 6
ILZ025>027-034>036-040-047-049-050-058-095>099-171700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 48 29 47 CALM 30.57F TC 9
GALESBURG* SUNNY 48 34 59 CALM 30.59S TC 9
MACOMB* SUNNY 48 36 62 CALM 30.61R TC 9
ILZ028>032-037-038-041>044-048-051>054-059>061-171700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON SUNNY 48 39 71 VRB3 30.58S TC 9
DECATUR SUNNY 50 37 61 NE6 30.58R TC 10
PEORIA SUNNY 48 34 58 CALM 30.58S TC 9
LACON* SUNNY 48 33 55 CALM 30.57F TC 9
SPRINGFIELD SUNNY 49 37 63 E7 30.58S TC 9
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-171700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 49 33 54 E7 30.57R TC 9
MATTOON SUNNY 50 33 52 NE8 30.56R TC 10
ILZ079-100>102-171700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 50 39 66 E7 30.59R TC 10
CAHOKIA* SUNNY 51 40 65 VRB5 30.58S TC 11
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-171700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 53 42 66 N8 30.56R TC 12
CAIRO* MOSUNNY 54 42 62 NE10 30.55S TC 12
EFFINGHAM* MOSUNNY 51 32 49 NE7 30.58F TC 11
MT. VERNON MOSUNNY 52 38 58 VRB7 30.56S TC 11
CENTRALIA* MOSUNNY 52 38 58 N9 30.57S TC 11
SALEM* MOSUNNY 52 40 62 MISG 30.56F TC 11
ILZ067-068-072-073-078-083-087-091-171700-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 51 33 50 NE14 30.55R TC 11
FLORA* SUNNY 52 36 54 NE10 30.57S TC 11
FAIRFIELD* SUNNY 52 35 52 NE8 30.56S TC 11
HARRISBURG* SUNNY 53 39 59 N12G17 30.55S TC 12
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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