508
ASUS43 KLOT 150810
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 AM CDT MON SEP 15 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.
ILZ001-002-007-009-015-016-024-150900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 69 66 90 E8 30.06S TC 21
STERLING* CLEAR 63 62 97 E5 30.11R TC 17
ILZ003-004-008-010-011-017-018-150900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 66 60 81 E5 30.13S TC 19
ROCHELLE* CLEAR 62 57 83 SE6 30.12S TC 17
DE KALB* CLEAR 63 60 90 E5 30.14R TC 17
PERU* CLEAR 66 60 80 E7 30.10S TC 19
ILZ005-006-012>014-019>023-150900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 67 56 67 SE6 30.12S TC 19
CHICAGO-MIDWAY CLEAR 69 54 58 SE7 30.13R TC 21
AURORA CLEAR 64 58 80 E3 30.12R TC 18
JOLIET* CLEAR 68 56 65 SE7 30.13R TC 20
WAUKEGAN CLEAR 68 60 75 SE5 30.13S TC 20
DUPAGE AIRPORT CLEAR 67 57 70 E3 30.13R TC 19
KANKAKEE* CLEAR 63 55 77 E5 30.12S TC 17
WHEELING CLEAR 66 57 72 CALM 30.15R TC 19
MORRIS* CLEAR 66 58 75 E7 30.11R TC 19
ROMEOVILLE* CLEAR 66 59 77 E8 30.13S TC 19
LANSING* CLEAR 63 56 77 CALM 30.14R TC 17
LMZ740>746-150900-
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 68 120/ 8/ 8 1021.0R
WINTHROP HARBOR 69 66 170/ 4/ 6 N/A 1/ 3
WAUKEGAN HARBOR 71 69 N/A 1/ 3
WILMETTE BUOY 71 150/ 10/ 12 1022.3R 2/ 3
CHICAGO BUOY 71 65 130/ 6/ 10 1020.7 2/ 3
HARRISON CRIB 71 150/ 11/ 13 N/A
CALUMET HARBOR 71 120/ 7/ 10 1019.2
BURNS HARBOR 71 130/ 7/ 11 1020.7R
MICHIGAN CITY 68 120/ 9/ 11 1019.1S
MICH CITY BUOY 67 1018.8R
ST. JOSEPH BUOY 68 69 70/ 10/ 14 1021.4S 1
ILZ025>027-034>036-040-047-049-050-058-095>099-150900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 73 66 78 E7 30.04R TC 23
GALESBURG* PTCLDY 70 64 80 E5 30.08S TC 21
MACOMB* PTCLDY 67 65 94 E3 30.08R TC 19
JACKSONVILLE* PTCLDY 68 68 98 CALM 30.05S TC 20
PITTSFIELD* PTCLDY 71 66 84 CALM 30.05S TC 22
ILZ028>032-037-038-041>044-048-051>054-059>061-150900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 63 57 79 E5 30.11R TC 17
BLOOMINGTON CLEAR 65 59 81 E9 30.10S TC 18
DECATUR CLEAR 67 63 87 E5 30.07S TC 19
PEORIA CLEAR 72 63 73 E6 30.07R TC 22
LACON* CLEAR 67 58 74 E8 30.08R TC 19
LINCOLN* CLEAR 68 65 89 E5 30.07S TC 20
SPRINGFIELD PTCLDY 69 65 86 E7 30.05S TC 21
TAYLORVILLE CLEAR 72 66 83 MISG 30.05S TC 22
ILZ033-039-045-046-055>057-062-063-150900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 65 58 78 E6 30.09R TC 18
DANVILLE* CLEAR 65 56 74 E6 30.10F TC 18
RANTOUL* CLEAR 65 56 70 E8 30.10S TC 19
MATTOON CLEAR 67 64 90 CALM 30.06S TC 19
ILZ079-100>102-150900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 70 68 94 MISG 30.02F TC 21
BELLEVILLE MOCLDY 72 68 87 CALM 30.00R TC 22
CAHOKIA* PTCLDY 71 68 90 CALM 30.01S TC 22
SPARTA* MOCLDY 73 70 91 CALM 30.02F TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-150900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* PTCLDY 71 66 85 CALM 29.99R TC 22
EFFINGHAM* CLEAR 70 68 94 NE3 30.06S TC 21
MARION PTCLDY 70 67 89 CALM 30.01S TC 21
MT. VERNON CLEAR 71 68 90 NE6 30.02S TC 22
CENTRALIA* CLEAR 71 68 90 E6 30.02S TC 22
SALEM* CLEAR 74 67 80 E5 30.03S TC 23
METROPOLIS* PTCLDY 69 68 96 CALM 30.00S FOG TC 21
ILZ067-068-072-073-078-083-087-091-150900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 68 66 93 NE5 30.05R TC 20
FLORA* CLEAR 70 66 88 NE6 30.04S TC 21
FAIRFIELD* CLEAR 71 65 81 NE3 30.02S TC 22
HARRISBURG* CLEAR 67 64 90 MISG 30.01S TC 20
ROBINSON* CLEAR 63 63 100 N2 30.05S TC 17
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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