561
ASUS43 KLOT 200810
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 AM CDT WED AUG 20 2025
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.
ILZ001-002-007-009-015-016-024-200900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 68 68 100 CALM 30.05S TC 20
ILZ003-004-008-010-011-017-018-200900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 66 66 100 CALM 30.07S TC 19
ROCHELLE* FOG 61 60 95 CALM 30.07R VSB 1/2 TC 16
DE KALB* FOG 64 64 100 CALM 30.07S VSB 1/4 TC 18
PERU* CLEAR 65 65 100 CALM 30.05S FOG TC 19
ILZ005-006-012>014-019>023-200900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 68 66 93 N6 30.04S TC 20
CHICAGO-MIDWAY PTCLDY 71 66 84 NW7 30.03F TC 22
AURORA FOG 63 62 97 CALM 30.05S VSB 1/4 TC 17
JOLIET* CLEAR 69 69 100 CALM 30.05S TC 21
WAUKEGAN CLEAR 68 65 90 N5 30.04F TC 20
DUPAGE AIRPORT CLEAR 67 65 93 CALM 30.05S FOG TC 19
KANKAKEE* CLEAR 68 66 94 NW3 30.05R TC 20
WHEELING CLEAR 68 66 93 NW3 30.05F TC 20
MORRIS* CLEAR 67 67 100 CALM 30.04S FOG TC 19
ROMEOVILLE* CLEAR 68 68 100 CALM 30.05F TC 20
LANSING* CLOUDY 69 69 99 NW5 30.04S TC 21
NORTHERLY ISL* N/A 71 66 84 NW8 N/A TC 22
LMZ740>746-200900-
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)
S. MID LAKE BUOY 71 75 350/ 14/ 17 1016.5F 3/ 5
WINTHROP HARBOR 70 69 270/ 10/ 14 N/A 2/ 5
WAUKEGAN HARBOR 70 74 280/ 6/ 10 N/A 2/ 5
WILMETTE BUOY 72 10/ 10/ 14 1019.4R 2/ 5
NORTHERLY ISL 71 340/ 6/ 7 N/A
CALUMET HARBOR 72 330/ 5/ 8 1016.0F
BURNS HARBOR 73 360/ 8/ 11 1017.3
MICHIGAN CITY 73 350/ 18/ 20 1014.9F
MICH CITY BUOY 74 76 340/ 14/ 19 1015.3S 5/ 5
ST. JOSEPH BUOY 72 71 320/ 16/ 21 1017.1F 3/ 6
ILZ025>027-034>036-040-047-049-050-058-095>099-200900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 67 67 100 N3 30.05F TC 19
GALESBURG* CLEAR 64 64 100 CALM 30.06F TC 18
MACOMB* CLEAR 65 65 100 CALM 30.08S TC 19
JACKSONVILLE* CLEAR 66 65 99 N3 30.05S TC 19
PITTSFIELD* CLEAR 69 69 99 CALM 30.07R TC 21
ILZ028>032-037-038-041>044-048-051>054-059>061-200900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 66 65 97 CALM 30.04S FOG TC 19
BLOOMINGTON MOCLDY 68 68 100 N6 30.07R TC 20
DECATUR CLOUDY 72 69 90 N7 30.05S TC 22
PEORIA CLEAR 69 67 93 CALM 30.05S TC 21
LACON* CLEAR 67 66 94 CALM 30.03F TC 20
LINCOLN* CLEAR 67 67 100 CALM 30.05S TC 20
SPRINGFIELD PTCLDY 67 66 97 N3 30.04F TC 19
TAYLORVILLE CLOUDY 70 68 94 N3 30.05S TC 21
ILZ033-039-045-046-055>057-062-063-200900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 70 68 93 N5 30.05R TC 21
DANVILLE* PTCLDY 67 67 97 N5 30.04S TC 20
RANTOUL* CLEAR 69 68 96 N6 30.05S TC 21
MATTOON MOCLDY 70 68 93 N5 30.03R TC 21
PARIS* CLOUDY 70 67 92 CALM 30.03S TC 21
ILZ079-100>102-200900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 72 70 93 CALM N/A TC 22
BELLEVILLE CLOUDY 75 72 91 NE6 30.00F TC 24
CAHOKIA* MOCLDY 75 72 90 NE6 30.02S TC 24
SPARTA* PTCLDY 76 74 96 NE6 30.02S TC 24
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-200900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOCLDY 73 71 93 N6 29.98F TC 23
CAIRO* CLOUDY 74 72 93 CALM 29.95F TC 23
EFFINGHAM* MOCLDY 70 70 99 CALM 30.04S TC 21
MARION PTCLDY N/A N/A N/A N8 29.98F
MT. VERNON PTCLDY 74 72 93 N6 30.01F TC 23
CENTRALIA* MOCLDY 73 69 87 NE5 30.02F TC 23
SALEM* MOCLDY 72 69 91 CALM 30.03S TC 22
METROPOLIS* CLOUDY 74 73 96 CALM 29.96S TC 23
ILZ067-068-072-073-078-083-087-091-200900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 74 70 87 N8 30.00S TC 23
FLORA* PTCLDY 72 N/A N/A N6 30.02S TC 22
FAIRFIELD* MOCLDY 73 71 95 CALM 30.01S TC 23
HARRISBURG* PTCLDY 75 72 90 NW6 29.99F TC 24
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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