945
ASUS43 KLOT 171703
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 PM 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.
ILZ001-002-007-009-015-016-024-171800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 51 30 44 CALM 30.55F TC 11
STERLING* SUNNY 53 30 41 SW7 30.56F TC 12
SAVANNA* SUNNY 51 29 42 SW6 30.56S TC 11
ILZ003-004-008-010-011-017-018-171800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD SUNNY 53 29 39 S8 30.54F TC 12
FREEPORT* SUNNY 53 25 33 SW7 30.55F TC 12
DE KALB* SUNNY 51 35 54 S6 30.54F TC 11
ILZ005-006-012>014-019>023-171800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 52 37 56 VRB3 30.53S TC 11
CHICAGO-MIDWAY MOSUNNY 52 38 58 SW3 30.54S TC 11
AURORA SUNNY 53 37 54 VRB3 30.54F TC 12
JOLIET* SUNNY 52 39 61 SE5 30.56S TC 11
WAUKEGAN SUNNY 53 38 56 SW5 30.52S TC 12
DUPAGE AIRPORT SUNNY 52 37 56 SW6 30.53F TC 11
WHEELING MOSUNNY 53 37 54 VRB3 30.53F TC 12
LANSING* PTSUNNY 50 37 59 SW3 30.55F TC 10
NORTHERLY ISL* N/A 54 40 59 SE2 N/A TC 12
LMZ740>746-171800-
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 51 55 1039.8R
WAUKEGAN HARBOR 51 56 140/ 6/ 14 1031.1F 2/ 7
WILMETTE BUOY 51 1043.0R 3/ 6
CHICAGO BUOY 51 59 220/ 4/ 10 1032.5F 3/ 8
HARRISON CRIB 50 140/ 2/ 3 N/A
NORTHERLY ISL 53 90/ 4/ 7 N/A
CALUMET HARBOR 49 200/ 3/ 5 1034.1
MICHIGAN CITY 52 310/ 4/ 5 1033.8F
MICH CITY BUOY 49 60 90/ 2/ 6 N/A 4/ 7
ST. JOSEPH BUOY 49 60 CALM / 2 1034.4S 3/ 6
ILZ025>027-034>036-040-047-049-050-058-095>099-171800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 51 30 44 CALM 30.56F TC 11
GALESBURG* SUNNY 51 35 54 CALM 30.57F TC 10
MACOMB* SUNNY 51 33 50 CALM 30.59F TC 10
ILZ028>032-037-038-041>044-048-051>054-059>061-171800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON SUNNY 51 37 58 CALM 30.57F TC 11
DECATUR MOSUNNY 51 37 58 E8 30.57F TC 11
PEORIA SUNNY 51 37 58 CALM 30.57F TC 11
LACON* SUNNY 51 34 51 S3 30.56F TC 11
SPRINGFIELD SUNNY 51 37 58 E5 30.57F TC 11
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-171800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 50 35 56 E5 30.57S TC 10
MATTOON SUNNY 51 33 50 NE13 30.55F TC 11
ILZ079-100>102-171800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOSUNNY 54 39 58 VRB3 30.58F TC 12
CAHOKIA* SUNNY 54 39 57 N5 30.57F TC 12
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-171800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 54 38 54 NE7 30.54F TC 12
CAIRO* MOSUNNY 56 40 54 NE10 30.54F TC 13
EFFINGHAM* SUNNY 53 33 46 N7 30.56F TC 12
MT. VERNON MOSUNNY 54 37 52 VRB7 30.55F TC 12
CENTRALIA* SUNNY 54 35 49 N6 30.55F TC 12
SALEM* SUNNY 54 38 54 MISG 30.55F TC 12
ILZ067-068-072-073-078-083-087-091-171800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 53 34 48 N12 30.54F TC 12
FLORA* SUNNY 54 36 50 NE10 30.55F TC 12
FAIRFIELD* SUNNY 54 34 46 NE12 30.54F TC 12
HARRISBURG* SUNNY 56 39 53 N8 30.54F TC 13
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page