421
ASUS43 KLOT 200907
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 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.
ILZ001-002-007-009-015-016-024-201000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 69 68 96 CALM 30.04F TC 21
ILZ003-004-008-010-011-017-018-201000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 65 65 100 CALM 30.07S TC 18
ROCHELLE* FOG 61 59 94 CALM 30.06F VSB 1/4 TC 16
DE KALB* PTCLDY 64 64 100 N3 30.07S FOG TC 18
PERU* CLEAR 66 66 100 NW3 30.05S TC 19
ILZ005-006-012>014-019>023-201000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 67 66 97 N7 30.04S TC 19
CHICAGO-MIDWAY PTCLDY 70 66 87 NW8 30.03S TC 21
AURORA CLEAR 63 63 100 CALM 30.04S FOG TC 17
JOLIET* CLEAR 69 69 100 CALM 30.04S TC 21
WAUKEGAN CLEAR 68 65 90 NW3 30.05R TC 20
DUPAGE AIRPORT CLEAR 64 62 93 N5 30.04F TC 18
KANKAKEE* CLEAR 66 66 100 NW5 30.04S TC 19
WHEELING CLEAR 67 66 97 N3 30.06R TC 19
MORRIS* CLEAR 65 65 100 CALM 30.03S FOG TC 19
ROMEOVILLE* CLEAR 68 68 100 N5 30.05S TC 20
LANSING* CLOUDY 69 69 99 NW5 30.03S TC 21
NORTHERLY ISL* N/A 71 66 84 NW7 N/A TC 22
LMZ740>746-201000-
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 75 360/ 17/ 19 1016.8R 3/ 5
WINTHROP HARBOR 69 69 260/ 8/ 12 N/A 2/ 5
WAUKEGAN HARBOR 70 74 280/ 8/ 10 N/A 2/ 5
WILMETTE BUOY 72 10/ 12/ 16 1019.1F 2/ 5
NORTHERLY ISL 71 320/ 7/ 9 N/A
CALUMET HARBOR 72 310/ 3/ 7 1015.7
BURNS HARBOR 73 10/ 7/ 10 1016.9F
MICHIGAN CITY 73 360/ 18/ 20 1014.8F
MICH CITY BUOY 73 76 360/ 14/ 19 1014.9F 6/ 6
ST. JOSEPH BUOY 72 72 320/ 16/ 19 1017.1S 3/ 6
ILZ025>027-034>036-040-047-049-050-058-095>099-201000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 68 68 100 CALM 30.05S TC 20
GALESBURG* CLEAR 64 64 100 CALM 30.07R TC 18
MACOMB* CLEAR 65 65 100 CALM 30.08S TC 19
JACKSONVILLE* CLEAR 65 64 98 CALM 30.05S TC 18
PITTSFIELD* CLEAR 70 69 98 CALM 30.06F TC 21
ILZ028>032-037-038-041>044-048-051>054-059>061-201000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC FOG 65 64 97 CALM 30.05R VSB 1/2 TC 18
BLOOMINGTON PTCLDY 66 66 100 CALM 30.07S TC 19
DECATUR PTCLDY 70 68 93 N5 30.04F TC 21
PEORIA CLEAR 67 66 97 CALM 30.05S TC 19
LACON* CLEAR 65 63 94 CALM 30.05R TC 18
LINCOLN* CLEAR 68 68 100 N3 30.04F TC 20
SPRINGFIELD PTCLDY 66 65 96 CALM 30.04S TC 19
TAYLORVILLE CLOUDY 68 68 100 N5 30.05R TC 20
ILZ033-039-045-046-055>057-062-063-201000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 68 66 93 N3 30.04F TC 20
DANVILLE* PTCLDY 67 66 97 NW3 30.04S TC 19
RANTOUL* PTCLDY 69 67 96 CALM 30.05S TC 20
MATTOON MOCLDY 69 68 96 N5 30.02F TC 21
PARIS* MOCLDY 68 67 98 NE3 30.03S TC 20
ILZ079-100>102-201000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 71 69 94 CALM 30.03F TC 22
BELLEVILLE MOCLDY 74 72 93 N5 29.99F TC 24
CAHOKIA* MOCLDY 74 71 91 N3 30.01F TC 23
SPARTA* PTCLDY 75 73 96 NE7 30.00F TC 24
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOCLDY 73 72 96 N5 29.97F TC 23
CAIRO* CLOUDY 74 73 96 CALM 29.97R TC 23
EFFINGHAM* MOCLDY 70 70 100 NW3 30.04S TC 21
MARION PTCLDY N/A N/A N/A N6 29.98S
MT. VERNON PTCLDY 73 71 93 NE6 30.00F TC 23
CENTRALIA* MOCLDY 73 70 91 CALM 30.01F TC 23
SALEM* MOCLDY 72 70 93 N5 30.01F TC 22
METROPOLIS* CLOUDY 73 73 97 NW6 29.96R TC 23
ILZ067-068-072-073-078-083-087-091-201000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 73 69 87 NE8 30.00S TC 23
FLORA* PTCLDY 72 N/A N/A N5 30.01S TC 22
FAIRFIELD* PTCLDY 72 70 95 N3 30.00S TC 22
HARRISBURG* PTCLDY 74 73 94 N9 29.97F TC 24
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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