542
ASUS43 KLOT 170812
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 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.
ILZ001-002-007-009-015-016-024-170900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 36 35 96 S5 30.51S WCI 32 TC 2
STERLING* CLEAR 39 32 76 NW3 30.51S TC 4
SAVANNA* CLEAR 35 31 84 CALM 30.52S TC 2
ILZ003-004-008-010-011-017-018-170900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 35 32 88 N5 30.51S WCI 31 TC 2
FREEPORT* CLEAR 35 33 94 N6 30.52R WCI 29 TC 1
ROCHELLE* CLEAR 36 32 87 N5 30.50S WCI 32 TC 2
DE KALB* CLEAR 37 33 85 N6 30.49S WCI 32 TC 3
ILZ005-006-012>014-019>023-170900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 40 29 64 N12 30.45R TC 4
CHICAGO-MIDWAY PTCLDY 42 30 62 NW13 30.45R TC 6
AURORA CLEAR 36 32 85 N5 30.47R WCI 32 TC 2
JOLIET* CLEAR 42 32 68 N8 30.47S TC 5
WAUKEGAN CLEAR 39 30 70 NW8 30.45S WCI 33 TC 4
DUPAGE AIRPORT CLEAR 39 30 70 N8 30.46S WCI 33 TC 4
KANKAKEE* CLEAR 42 33 71 N10 30.45R TC 6
WHEELING PTCLDY 40 30 67 N8 30.47R TC 4
ROMEOVILLE* CLEAR 41 30 65 N8G14 30.47R TC 5
LANSING* MOCLDY 42 34 73 NW7 30.44S TC 6
NORTHERLY ISL* N/A 45 35 68 NW13 N/A TC 7
LMZ740>746-170900-
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 44 55 1019.8
WAUKEGAN HARBOR 43 53 300/ 16/ 21 1029.2 4/ 8
WILMETTE BUOY 46 1023.8F 7/ 7
CHICAGO BUOY 50 60 340/ 21/ 29 1029.2 6/ 8
HARRISON CRIB 48 340/ 20/ 23 N/A
NORTHERLY ISL 45 310/ 13/ 18 N/A
CALUMET HARBOR 45 300/ 3/ 4 1030.5R
MICHIGAN CITY 46 50/ 12/ 14 1030.1R
MICH CITY BUOY 49 60 40/ 17/ 25 N/A 8/ 7
ST. JOSEPH BUOY 47 60 60/ 14/ 19 1030.6R 7/ 8
ILZ025>027-034>036-040-047-049-050-058-095>099-170900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 38 36 92 N6 30.51S WCI 33 TC 3
GALESBURG* CLEAR 35 35 100 CALM 30.53R TC 2
MACOMB* CLEAR 37 37 97 N7 30.53S WCI 32 TC 3
JACKSONVILLE* CLEAR 38 37 98 NW6 30.49S WCI 33 TC 3
PITTSFIELD* CLEAR 43 37 80 N6 30.51S TC 6
ILZ028>032-037-038-041>044-048-051>054-059>061-170900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 40 35 81 N7 30.48R TC 5
BLOOMINGTON CLEAR 40 36 86 N9 30.48R TC 4
DECATUR CLEAR 43 38 82 N13 30.46S TC 6
PEORIA CLEAR 40 35 83 N3 30.50R TC 4
LACON* CLEAR 39 32 76 N3 30.50R TC 4
SPRINGFIELD CLEAR 42 37 82 N6 30.48R TC 6
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-170900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 42 36 79 N12 30.44R TC 6
RANTOUL* CLEAR 40 37 88 NW8 30.45R TC 5
MATTOON CLEAR 42 39 89 N10 30.43R TC 6
PARIS* PTCLDY 42 37 83 N8 30.43R TC 6
ILZ079-100>102-170900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 46 40 81 NW5 30.48R TC 8
BELLEVILLE CLEAR 47 45 90 NW6 30.45R TC 9
CAHOKIA* CLEAR 48 40 73 N10 30.48R TC 9
SPARTA* CLEAR 48 43 84 NW6 30.47R TC 9
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-170900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 48 45 89 NW9 30.43S TC 9
CAIRO* CLEAR 51 47 84 N10 30.42S TC 11
EFFINGHAM* CLEAR 45 40 81 NW5 30.46R TC 7
MARION CLEAR 50 43 76 N8 30.42S TC 10
MT. VERNON CLEAR 48 42 80 N3 30.44R TC 9
CENTRALIA* CLEAR 47 43 84 N9 30.45R TC 9
SALEM* CLEAR 47 43 84 MISG 30.44S TC 9
METROPOLIS* CLEAR 49 43 80 NW7 30.41R TC 10
ILZ067-068-072-073-078-083-087-091-170900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 46 42 86 N9 30.40R TC 8
FLORA* CLEAR 48 39 71 N12G18 30.43S TC 9
FAIRFIELD* CLEAR 48 39 71 N9 30.42R TC 9
HARRISBURG* CLEAR 48 44 85 N7 30.42S TC 9
ROBINSON* CLEAR 46 41 81 N9 30.41R TC 8
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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