117
ASUS43 KLOT 180210
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 PM CDT SUN AUG 17 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.
ILZ001-002-007-009-015-016-024-180300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 81 78 91 E9 29.99R HX 89 TC 27
ILZ003-004-008-010-011-017-018-180300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 73 67 81 VRB3 30.09R TC 23
ROCHELLE* MOCLDY 74 67 80 E9 30.07R TC 23
DE KALB* CLOUDY 72 68 87 E8 30.09R TC 22
PERU* PTCLDY 75 74 98 NE6 30.06R TC 24
ILZ005-006-012>014-019>023-180300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 73 66 78 NE10 30.08R TC 23
CHICAGO-MIDWAY PTCLDY 75 66 73 NE9 30.08R TC 24
AURORA MOCLDY 74 67 78 E8 30.07R TC 23
JOLIET* PTCLDY 76 69 80 NE8 30.07R TC 24
WAUKEGAN CLEAR 71 65 81 N5 30.09R TC 22
DUPAGE AIRPORT PTCLDY 73 66 78 NE6 30.08R TC 23
KANKAKEE* PTCLDY 75 72 88 NE8 30.07R TC 24
WHEELING PTCLDY 73 67 81 MISG 30.10R TC 23
MORRIS* MOCLDY 74 72 95 CALM 30.06R TC 23
ROMEOVILLE* MOCLDY 73 72 94 NE9 30.08R TC 23
LANSING* PTCLDY 73 69 87 NE7 30.08R TC 23
NORTHERLY ISL* N/A 73 66 78 N13 N/A TC 23
LMZ740>746-180300-
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 74 77 10/ 12/ 14 1018.1R
WINTHROP HARBOR 74 75 330/ 12/ 14 N/A 2/ 5
WAUKEGAN HARBOR 74 76 330/ 12/ 16 N/A 2/ 4
WILMETTE BUOY 75 20/ 14/ 17 1020.9R 3/ 5
NORTHERLY ISL 73 360/ 6/ 9 N/A
CALUMET HARBOR 74 350/ 6/ 8 1017.2
BURNS HARBOR 76 30/ 6/ 7 1018.6R
MICHIGAN CITY 76 20/ 12/ 13 1016.7R
MICH CITY BUOY 76 78 10/ 10/ 12 1016.7R 3/ 5
ST. JOSEPH BUOY 76 330/ 14/ 17 1018.8R 3/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-180300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOCLDY 76 70 82 E3 30.00R TC 24
GALESBURG* PTCLDY 81 77 88 SE3 30.02R HX 88 TC 27
MACOMB* MOCLDY 78 76 94 CALM 30.03R TC 25
JACKSONVILLE* PTCLDY 78 77 98 SW5 30.01R HX 80 TC 26
PITTSFIELD* MOCLDY 77 77 98 CALM 30.01R TC 25
ILZ028>032-037-038-041>044-048-051>054-059>061-180300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 78 77 97 NE8 30.04R TC 25
BLOOMINGTON CLEAR 81 76 84 S5 30.05R HX 87 TC 27
DECATUR CLEAR 80 77 90 E3 30.02R HX 87 TC 27
PEORIA PTCLDY 83 77 82 E3 30.01R HX 92 TC 28
LACON* MOCLDY 79 73 81 E6 30.02R HX 82 TC 26
LINCOLN* CLEAR 81 81 100 CALM 30.01S HX 94 TC 27
SPRINGFIELD PTCLDY 81 77 88 CALM 30.00R HX 88 TC 27
TAYLORVILLE CLEAR 81 77 89 S5 30.02R HX 88 TC 27
ILZ033-039-045-046-055>057-062-063-180300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 80 73 79 NE5 30.03S HX 84 TC 27
DANVILLE* PTCLDY 79 76 91 E5 30.05R HX 83 TC 26
RANTOUL* PTCLDY 78 71 80 CALM 30.04R TC 25
MATTOON CLEAR 79 75 87 SE5 30.02R HX 83 TC 26
PARIS* CLEAR 77 76 98 CALM 30.04R TC 25
ILZ079-100>102-180300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 81 79 94 VRB3 30.00R HX 89 TC 27
CAHOKIA* PTCLDY 82 76 81 CALM 29.98R HX 89 TC 28
SPARTA* CLEAR 87 74 63 SE3 30.01R HX 95 TC 31
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-180300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 81 76 84 S3 29.99R HX 87 TC 27
CAIRO* PTCLDY 80 77 91 CALM 30.00R HX 87 TC 27
EFFINGHAM* CLEAR 80 78 95 E3 30.03S HX 86 TC 27
MARION PTCLDY N/A N/A N/A SE3 30.01R
MT. VERNON CLEAR 82 77 84 CALM 30.02R HAZE HX 90
CENTRALIA* CLEAR 81 75 84 E3 30.01R HX 86 TC 27
SALEM* CLEAR 85 75 73 CALM 30.01R HX 93 TC 29
METROPOLIS* PTCLDY 82 73 76 CALM 30.00S HX 87 TC 28
ILZ067-068-072-073-078-083-087-091-180300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 79 75 87 CALM 30.02R HX 83 TC 26
FLORA* PTCLDY 81 75 83 E3 30.02R HX 86 TC 27
FAIRFIELD* CLEAR 79 75 87 CALM 30.01R HX 82 TC 26
HARRISBURG* PTCLDY 80 75 83 CALM 30.01R HX 85 TC 27
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page