331
ASUS43 KLOT 151212
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 AM CDT SAT AUG 15 2026
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.
ILZ001-002-007-009-015-016-024-151300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE RAIN 73 72 96 S6 30.01F TC 23
6HR MIN TEMP: 73; 6HR MAX TEMP: 74; 6HR PCP: 0.40;
STERLING* CLOUDY 72 72 100 E6 30.07F FOG TC 22
SAVANNA* LGT RAIN 70 68 94 E6 30.06F TC 21
ILZ003-004-008-010-011-017-018-151300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 71 67 87 E5 30.10R TC 22
6HR MIN TEMP: 70; 6HR MAX TEMP: 71; 6HR PCP: TRACE;
FREEPORT* CLOUDY 69 67 94 CALM 30.11S TC 21
ILZ005-006-012>014-019>023-151300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 74 70 87 SE6 30.09S TC 23
6HR MIN TEMP: 73; 6HR MAX TEMP: 74;
CHICAGO-MIDWAY CLOUDY 74 71 91 SE9 30.09S TC 23
6HR MIN TEMP: 73; 6HR MAX TEMP: 74; 6HR PCP: TRACE;
AURORA CLOUDY 72 71 97 SE3 30.09S FOG TC 22
6HR MIN TEMP: 71; 6HR MAX TEMP: 72; 6HR PCP: TRACE;
JOLIET* CLOUDY 74 74 100 CALM 30.10R TC 23
WAUKEGAN CLOUDY 73 72 96 SE5 30.09S TC 23
6HR MIN TEMP: 72; 6HR MAX TEMP: 74;
DUPAGE AIRPORT CLOUDY 72 70 93 SE3 30.09S TC 22
6HR MIN TEMP: 70; 6HR MAX TEMP: 72; 6HR PCP: TRACE;
WHEELING CLOUDY 73 71 93 CALM 30.11R TC 23
6HR MIN TEMP: 72; 6HR MAX TEMP: 74; 6HR PCP: TRACE;
ROMEOVILLE* DRIZZLE 73 73 100 SE3 30.10S TC 23
LANSING* N/A N/A N/A N/A MISG N/A
NORTHERLY ISL* N/A 72 70 93 SE6 N/A TC 22
LMZ740>746-151300-
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)
WINTHROP HARBOR 74 74 100/ 8/ 12 1018.6 2/ 5
WAUKEGAN HARBOR 74 74 120/ 8/ 10 1019.2 2/ 5
WILMETTE BUOY 74 120/ 6/ 8 1022.0S 2/ 5
CHICAGO BUOY 74 73 1018.3 2/ 4
HARRISON CRIB 74 140/ 10/ 11 N/A
NORTHERLY ISL 73 110/ 3/ 3 N/A
CALUMET HARBOR 74 140/ 4/ 4 1019.4
MICHIGAN CITY 73 140/ 6/ 7 1018.4R
MICH CITY BUOY 73 73 150/ 6/ 10 N/A 2/ 5
ST. JOSEPH BUOY 74 75 110/ 6/ 8 1020.7R 1/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-151300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY RAIN 74 73 97 S8 30.08F TC 23
ILZ028>032-037-038-041>044-048-051>054-059>061-151300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON LGT RAIN 71 32 23 W13 30.15R FOG TC 22
DECATUR TSTM 72 71 97 W7 30.16S FOG TC 22
PEORIA RAIN 72 71 97 S8 30.10S TC 22
6HR MIN TEMP: 71; 6HR MAX TEMP: 74; 6HR PCP: 1.50;
LINCOLN* HVY RAIN 73 73 100 CALM 30.14S TC 23
SPRINGFIELD CLOUDY 72 72 100 CALM 30.12F TC 22
6HR MIN TEMP: 72; 6HR MAX TEMP: 76;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-151300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN TSTM 71 71 100 W5 30.16R VSB 3/4 TC 22
MATTOON LGT RAIN 74 72 93 N7 30.13R FOG TC 23
ILZ079-100>102-151300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 77 73 88 MISG 30.12R TC 25
CAHOKIA* MOCLDY 78 73 84 CALM 30.09R HX 81 TC 26
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-151300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 79 72 78 CALM 30.09 HX 82 TC 26
MT. VERNON PTCLDY 78 74 87 SW3 30.09R HX 81 TC 26
CENTRALIA* MOCLDY 78 74 88 CALM 30.08R HX 80 TC 26
ILZ067-068-072-073-078-083-087-091-151300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 75 73 93 CALM 30.09R TC 24
FAIRFIELD* PTCLDY 77 74 90 CALM 30.08R TC 25
HARRISBURG* PTCLDY 74 74 100 CALM 30.09S TC 24
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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