055
ASUS43 KLOT 152312
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 PM 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.
ILZ001-002-007-009-015-016-024-160000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 85 77 77 SW3 29.98F HX 95 TC 29
STERLING* PTSUNNY 82 77 84 CALM 30.02F HX 90 TC 28
SAVANNA* MOSUNNY 81 75 82 CALM 30.01F HX 86 TC 27
ILZ003-004-008-010-011-017-018-160000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 78 75 90 CALM 30.03F HX 81 TC 26
FREEPORT* CLOUDY 77 76 95 CALM 30.04F TC 25
ROCHELLE* PTSUNNY 80 75 85 CALM 30.03F HX 85 TC 27
DE KALB* CLOUDY 78 77 96 S5 30.05R HX 81 TC 26
PERU* CLOUDY 82 75 78 S3 30.02S HX 89 TC 28
ILZ005-006-012>014-019>023-160000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 78 74 87 SW3 30.02F HX 81 TC 26
CHICAGO-MIDWAY PTSUNNY 81 74 79 SW5 30.02S HX 86 TC 27
AURORA CLOUDY 80 76 87 S5 30.03R HX 86 TC 27
JOLIET* CLOUDY 82 77 85 SW5 30.03S HX 89 TC 28
WAUKEGAN CLOUDY 74 73 97 SE3 30.03S FOG TC 23
DUPAGE AIRPORT CLOUDY 79 76 90 CALM 30.03S HX 83 TC 26
KANKAKEE* PTSUNNY 81 77 89 CALM 30.05F HX 88 TC 27
WHEELING CLOUDY 77 75 93 CALM 30.04S TC 25
LANSING* N/A N/A N/A N/A MISG N/A
NORTHERLY ISL* N/A 76 72 87 N3 N/A TC 24
LMZ740>746-160000-
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 74 110/ 6/ 8 1017.6 2/ 4
WAUKEGAN HARBOR 74 74 140/ 4/ 6 1017.3 1/ 4
WILMETTE BUOY 74 190/ 4/ 6 1020.0R 1/ 3
CHICAGO BUOY 75 73 1015.8 1/ 4
HARRISON CRIB 77 340/ 2/ 3 N/A
NORTHERLY ISL 76 340/ 2/ 9 N/A
CALUMET HARBOR 79 200/ 5/ 7 1017.0
MICHIGAN CITY 76 180/ 7/ 8 1015.7R
MICH CITY BUOY 75 74 180/ 4/ 6 N/A 1
ST. JOSEPH BUOY 75 75 30/ 4/ 6 1018.0R 0
ILZ025>027-034>036-040-047-049-050-058-095>099-160000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 87 77 72 S8 30.01S HX 99 TC 31
GALESBURG* PTSUNNY 83 79 87 CALM 30.02F HX 94 TC 28
MACOMB* PTSUNNY 87 83 89 SW3 30.03S HX 108 TC 31
JACKSONVILLE* PTSUNNY 87 79 78 SW5 30.02S HX 101 TC 30
ILZ028>032-037-038-041>044-048-051>054-059>061-160000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 83 79 86 SW9 30.04S HX 94 TC 29
BLOOMINGTON PTSUNNY 82 79 90 S9 30.06S HX 92 TC 28
DECATUR PTSUNNY 84 76 76 S8 30.04F HX 93 TC 29
PEORIA PTSUNNY 82 77 84 S3 30.03R HX 90 TC 28
LACON* CLOUDY 82 74 77 CALM 30.02S HX 88 TC 28
LINCOLN* PTSUNNY 86 80 81 S6 30.02F HX 100 TC 30
SPRINGFIELD PTSUNNY 86 76 71 SW9 30.01F HX 96 TC 30
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-160000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 83 76 79 S6 30.05F HX 91 TC 28
RANTOUL* CLOUDY 82 76 83 SW5 30.06S HX 89 TC 28
MATTOON CLOUDY 82 76 81 S6 30.04F HX 89 TC 28
PARIS* CLOUDY 82 77 85 S3 30.06F HX 90 TC 28
ILZ079-100>102-160000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 86 77 74 S5 30.03S HX 97 TC 30
BELLEVILLE MOSUNNY 92 80 67 SW9 30.00F HX 111 TC 34
CAHOKIA* MOSUNNY 93 76 57 VRB6 30.01F HX 105 TC 34
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-160000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 93 73 52 S7 30.05S HX 102 TC 34
CAIRO* SUNNY 94 76 55 CALM 30.05F HX 107 TC 35
EFFINGHAM* PTSUNNY 85 81 87 CALM 30.06S HX 102 TC 30
MT. VERNON SUNNY 94 76 55 S10 30.04F HX 106 TC 34
CENTRALIA* SUNNY 93 74 52 SW9 30.04S HX 103 TC 34
SALEM* N/A 91 77 62 MISG 30.03F HX 104 TC 33
METROPOLIS* SUNNY 94 71 47 S3 30.06F HX 100 TC 34
ILZ067-068-072-073-078-083-087-091-160000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 92 76 59 SW8 30.03F HX 104 TC 33
FLORA* SUNNY 91 79 66 S8 30.04S HX 107 TC 33
FAIRFIELD* SUNNY 91 75 59 S7 30.04S HX 102 TC 33
ROBINSON* PTSUNNY 84 81 89 NE5 30.04S HX 98 TC 29
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