786
ASUS43 KLOT 181001
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 AM CDT SUN OCT 18 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.
ILZ001-002-007-009-015-016-024-181100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 41 33 73 S6 30.40S TC 5
STERLING* CLEAR 42 34 73 CALM 30.43R TC 6
SAVANNA* CLEAR 39 33 81 SE7 30.40S WCI 34 TC 4
ILZ003-004-008-010-011-017-018-181100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 39 34 82 S7 30.43R WCI 34 TC 4
FREEPORT* CLEAR 41 36 81 S8 30.41S TC 5
DE KALB* CLEAR 37 35 91 S7 30.44R WCI 31 TC 3
ILZ005-006-012>014-019>023-181100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 44 34 67 SW6 30.43R TC 7
CHICAGO-MIDWAY CLEAR 43 31 62 SW8 30.45R TC 6
AURORA CLEAR 36 34 92 CALM 30.44R TC 2
JOLIET* CLEAR 41 36 83 CALM 30.46R TC 5
WAUKEGAN CLEAR 42 35 76 SW9 30.41R TC 6
DUPAGE AIRPORT CLEAR 40 35 83 SW7 30.44R TC 4
KANKAKEE* CLEAR 36 30 77 S5 30.48S WCI 32 TC 2
WHEELING PTCLDY 43 35 73 SW6 30.44R TC 6
NORTHERLY ISL* N/A 46 29 51 S7 N/A TC 8
LMZ740>746-181100-
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 48 56 1025.9R
WAUKEGAN HARBOR 48 56 210/ 14/ 19 1027.9R 1/ 3
WILMETTE BUOY 50 180/ 16/ 21 1030.2R 2/ 3
CHICAGO BUOY 51 58 220/ 14/ 19 1029.3R 1/ 3
HARRISON CRIB 49 210/ 16/ 17 N/A
NORTHERLY ISL 45 200/ 7/ 11 N/A
CALUMET HARBOR 46 190/ 8/ 10 1030.7R
MICHIGAN CITY 45 190/ 6/ 9 1031.2R
MICH CITY BUOY 49 60 210/ 14/ 17 N/A 2/ 3
ST. JOSEPH BUOY 50 59 200/ 14/ 17 1031.8R 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-181100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 43 35 73 S6 30.42S TC 6
GALESBURG* CLEAR 38 36 90 S6 30.43S WCI 34 TC 4
MACOMB* CLEAR 40 37 89 S9 30.45S TC 4
JACKSONVILLE* CLEAR 42 34 72 S7 30.46S TC 6
ILZ028>032-037-038-041>044-048-051>054-059>061-181100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 39 33 79 S8 30.47S WCI 33 TC 4
DECATUR CLEAR 35 32 88 CALM 30.48S TC 2
PEORIA CLEAR 39 34 82 S3 30.45R TC 4
LACON* CLEAR 39 33 78 SE6 30.44S WCI 35 TC 4
SPRINGFIELD CLEAR 38 33 82 S7 30.47R WCI 33 TC 3
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-181100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 36 30 79 S7 30.48S WCI 30 TC 2
MATTOON CLEAR 37 32 82 S6 30.48S WCI 32 TC 3
ILZ079-100>102-181100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* CLEAR 36 36 100 CALM 30.47S TC 2
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 36 35 96 CALM 30.48S TC 2
CAIRO* CLEAR 39 39 100 CALM 30.48S TC 4
EFFINGHAM* CLEAR 36 34 94 CALM 30.51S TC 2
MT. VERNON CLEAR 33 33 100 CALM 30.49S TC 1
SALEM* CLEAR 39 38 95 MISG 30.48S TC 4
ILZ067-068-072-073-078-083-087-091-181100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE N/A N/A N/A N/A MISG 30.50S
FLORA* CLEAR 36 N/A N/A CALM 30.50S TC 2
FAIRFIELD* CLEAR 39 36 87 CALM 30.49S TC 4
HARRISBURG* CLEAR 35 34 99 CALM 30.50R TC 2
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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