686
ASUS43 KLOT 150606
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 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.
ILZ001-002-007-009-015-016-024-150700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 73 72 96 E8 30.06S TC 23
6HR MIN TEMP: 73; 6HR MAX TEMP: 76; 6HR PCP: TRACE;
STERLING* CLOUDY 72 72 100 E10 30.09F TC 22
SAVANNA* CLOUDY 72 69 90 E8 30.09F TC 22
ILZ003-004-008-010-011-017-018-150700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 70 65 84 CALM 30.12F TC 21
6HR MIN TEMP: 70; 6HR MAX TEMP: 76; 6HR PCP: TRACE;
FREEPORT* MOCLDY 70 69 96 E7 30.12F TC 21
ROCHELLE* CLOUDY 71 68 90 E8 30.11F TC 22
DE KALB* CLOUDY 70 67 90 E8 30.12F TC 21
PERU* CLOUDY 73 73 100 E6 30.10S FOG TC 23
ILZ005-006-012>014-019>023-150700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 73 67 81 NE10 30.10F TC 23
6HR MIN TEMP: 73; 6HR MAX TEMP: 75; 6HR PCP: TRACE;
CHICAGO-MIDWAY LGT RAIN 74 68 81 E7 30.09F TC 23
6HR MIN TEMP: 74; 6HR MAX TEMP: 76; 6HR PCP: 0.01;
AURORA MOCLDY 72 68 87 E7 30.11F TC 22
6HR MIN TEMP: 72; 6HR MAX TEMP: 76;
JOLIET* MOCLDY 74 72 95 E5 30.11S TC 23
WAUKEGAN CLOUDY 73 68 84 NE8 30.11F TC 23
6HR MIN TEMP: 71; 6HR MAX TEMP: 73;
DUPAGE AIRPORT CLOUDY 72 67 84 NE6 30.11F TC 22
6HR MIN TEMP: 72; 6HR MAX TEMP: 76;
KANKAKEE* PTCLDY 72 71 95 E3 30.11F TC 22
WHEELING PTCLDY 73 68 84 NE7 30.12F TC 23
6HR MIN TEMP: 73; 6HR MAX TEMP: 74;
ROMEOVILLE* MOCLDY 73 72 94 E6 30.12S TC 23
LANSING* N/A N/A N/A N/A MISG N/A
NORTHERLY ISL* N/A 72 69 90 N7 N/A TC 22
LMZ740>746-150700-
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 75 74 30/ 10/ 12 1017.4R 3/ 4
WILMETTE BUOY 75 90/ 10/ 14 1022.9F 2/ 4
CHICAGO BUOY 75 73 1018.2F 2/ 4
HARRISON CRIB 75 60/ 11/ 12 N/A
NORTHERLY ISL 72 10/ 3/ 6 N/A
CALUMET HARBOR 73 20/ 5/ 6 1019.8
MICHIGAN CITY 74 30/ 3/ 3 1018.3F
MICH CITY BUOY 74 74 80/ 4/ 4 N/A 1/ 4
ST. JOSEPH BUOY 75 75 170/ 2/ 4 1021.0F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-150700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 77 75 93 NE12 30.00R TC 25
GALESBURG* CLOUDY 73 73 100 CALM 30.08R TC 23
MACOMB* HVY RAIN 73 73 100 NE10G30 30.08R VSB 1 TC 23
JACKSONVILLE* CLOUDY 76 76 100 E10 30.02R TC 25
ILZ028>032-037-038-041>044-048-051>054-059>061-150700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 73 73 100 E6 30.11R TC 23
BLOOMINGTON FOG 73 73 100 VRB3 30.14R THUNDER VSB 3/4
DECATUR PTCLDY 75 72 90 SE7 30.08S TC 24
PEORIA TSTM 74 72 93 E9 30.08R FOG TC 23
6HR MIN TEMP: 74; 6HR MAX TEMP: 77; 6HR PCP: 0.37;
LACON* MOCLDY 73 70 91 E3 30.08R TC 23
LINCOLN* CLOUDY 76 76 100 NE5 30.07R TC 24
SPRINGFIELD PTCLDY 76 72 87 E10 30.04S TC 24
6HR MIN TEMP: 76; 6HR MAX TEMP: 82;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-150700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 73 73 100 E7 30.10S TC 23
RANTOUL* CLOUDY 73 73 98 E5 30.10S TC 23
MATTOON PTCLDY 75 71 87 SE9 30.08F TC 24
PARIS* PTCLDY 73 72 98 SE5 30.10F TC 23
ILZ079-100>102-150700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTCLDY 80 76 89 E8 30.01F HX 85 TC 27
CAHOKIA* CLEAR 80 77 90 SE5 30.00F HX 87 TC 27
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-150700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLEAR 82 77 83 CALM 30.09S HX 91 TC 28
EFFINGHAM* MOCLDY 75 75 99 E7 30.09F TC 24
MARION CLEAR 79 78 98 S5 30.08F HX 84 TC 26
MT. VERNON CLEAR 80 77 90 E3 30.07F HX 87 TC 27
CENTRALIA* CLEAR 79 78 96 CALM 30.06F HX 83 TC 26
SALEM* N/A 79 78 95 MISG 30.06F HX 84 TC 26
METROPOLIS* CLEAR 78 78 98 S3 30.09S HX 81 TC 26
ILZ067-068-072-073-078-083-087-091-150700-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 76 73 91 SE6 30.09F TC 24
FLORA* PTCLDY 77 N/A N/A SE5 30.08F TC 25
FAIRFIELD* CLEAR 79 75 88 E5 30.08S HX 82 TC 26
HARRISBURG* CLEAR 76 76 100 CALM 30.08F TC 25
ROBINSON* PTCLDY 73 73 100 SE5 30.08F TC 23
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