Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 181110
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 AM CDT MON AUG 18 2025
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.
* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
REPORT WEATHER SUCH AS PRECIPITATION OR FOG.
ILZ001-002-007-009-015-016-024-181200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 71 69 93 E7 29.99R TC 22
$$
ILZ003-004-008-010-011-017-018-181200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 69 68 96 E3 30.05S TC 21
ROCHELLE* CLEAR 68 67 94 SE6 30.05S TC 20
DE KALB* PTCLDY 69 69 100 E5 30.07R TC 21
PERU* PTCLDY 71 70 98 E6 30.04R TC 22
$$
ILZ005-006-012>014-019>023-181200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 73 68 84 SE8 30.06R TC 23
CHICAGO-MIDWAY CLOUDY 74 67 78 SE9 30.06R TC 23
AURORA MOCLDY 73 70 90 SE7 30.04S TC 23
JOLIET* CLOUDY 73 72 94 CALM 30.06R TC 23
WAUKEGAN CLOUDY 75 68 78 SE13 30.07S TC 24
DUPAGE AIRPORT PTCLDY 74 70 87 SE7 30.05R TC 23
KANKAKEE* CLOUDY 72 70 94 SE9 30.08R TC 22
WHEELING CLOUDY 74 70 87 MISG 30.08R TC 23
MORRIS* MOCLDY 71 71 100 SE6 30.04S TC 22
ROMEOVILLE* CLOUDY 73 73 100 SE9G15 30.07R TC 23
LANSING* PTCLDY 70 66 87 SE14 30.07S TC 21
NORTHERLY ISL* N/A 72 67 84 SE10 N/A TC 22
$$
LMZ740>746-181200-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
S. MID LAKE BUOY 69 75 120/ 19/ 23 1018.7S
WINTHROP HARBOR 74 75 140/ 16/ 23 N/A 5/ 5
WAUKEGAN HARBOR 74 75 140/ 16/ 19 N/A 5/ 5
WILMETTE BUOY 73 140/ 17/ 21 1020.2R 4/ 5
NORTHERLY ISL 73 120/ 10/ 13 N/A
CALUMET HARBOR 73 140/ 7/ 11 1017.0R
BURNS HARBOR 71 140/ 7/ 13 1018.6S
MICHIGAN CITY 70 130/ 14/ 17 1016.7S
MICH CITY BUOY 72 77 120/ 17/ 21 1016.7F 4/13
ST. JOSEPH BUOY 70 77 80/ 19/ 25 1019.4F 2/ 6
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-181200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 75 72 90 S6 29.98S TC 24
GALESBURG* CLOUDY 73 73 100 E5 30.01S FOG TC 23
MACOMB* FOG 72 72 100 CALM 30.01S VSB 1/4 TC 22
JACKSONVILLE* CLEAR 77 76 98 S6 30.00R TC 25
PITTSFIELD* CLEAR 74 73 99 S3 30.01R TC 23
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-181200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOCLDY 71 70 97 SE7 30.05R TC 22
BLOOMINGTON PTCLDY 73 73 100 SE6 30.06R TC 23
DECATUR CLEAR 77 73 87 SE5 30.04S TC 25
PEORIA CLEAR 75 74 96 E5 30.01S TC 24
LACON* PTCLDY 71 68 92 SE3 30.01F TC 22
LINCOLN* PTCLDY 75 75 100 SE5 30.02S TC 24
SPRINGFIELD CLEAR 77 74 90 SE8 30.01S TC 25
TAYLORVILLE CLEAR 73 72 94 SE7 30.03R TC 23
$$
ILZ033-039-045-046-055>057-062-063-181200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 73 72 96 NE5 30.06R TC 23
DANVILLE* CLOUDY 74 73 96 E6 30.08R TC 24
RANTOUL* PTCLDY 73 73 98 CALM 30.06S TC 23
MATTOON CLEAR 73 71 93 SE5 30.04R TC 23
PARIS* PTCLDY 72 71 98 E3 30.07R FOG TC 22
$$
ILZ079-100>102-181200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 75 73 94 SW5 30.02R TC 24
BELLEVILLE CLEAR 75 74 96 CALM 30.00R TC 24
CAHOKIA* CLEAR 74 73 97 CALM 30.01R TC 23
SPARTA* CLEAR 76 75 96 CALM 30.04R TC 25
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 72 71 97 CALM 30.03R FOG TC 22
CAIRO* CLEAR 74 74 99 CALM 30.03R TC 23
EFFINGHAM* CLEAR 73 73 100 CALM 30.06R TC 23
MARION CLEAR 74 71 90 CALM 30.04R TC 23
MT. VERNON CLEAR 71 71 100 CALM 30.04R FOG TC 22
CENTRALIA* CLEAR 73 72 96 CALM 30.04R TC 23
SALEM* CLEAR 76 72 86 CALM 30.03S TC 25
METROPOLIS* CLEAR 73 72 96 CALM 30.03R TC 23
$$
ILZ067-068-072-073-078-083-087-091-181200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 73 72 96 E3 30.04S TC 23
FLORA* CLEAR 72 N/A N/A CALM 30.04R TC 22
FAIRFIELD* CLEAR 72 70 95 CALM 30.03S TC 22
HARRISBURG* CLEAR 73 70 91 CALM 30.04R TC 23
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$