321
ASUS43 KLOT 161501
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 AM CDT SUN AUG 16 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.
ILZ001-002-007-009-015-016-024-161600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 79 75 87 W8 30.00F HX 83 TC 26
STERLING* CLOUDY 78 78 100 W9 30.00F HX 81 TC 26
SAVANNA* CLOUDY 77 74 89 NW3 30.01S TC 25
ILZ003-004-008-010-011-017-018-161600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 79 73 82 NW10 30.00F HX 82 TC 26
FREEPORT* CLOUDY 79 78 95 W6 30.01F HX 84 TC 26
ILZ005-006-012>014-019>023-161600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 78 74 87 W10 29.96F HX 81 TC 26
CHICAGO-MIDWAY CLOUDY 77 74 90 W12 29.97F TC 25
AURORA CLOUDY 77 74 90 W9 29.98F TC 25
WAUKEGAN CLOUDY 76 74 93 W6 29.95F TC 24
DUPAGE AIRPORT PTSUNNY 78 74 87 NW8 29.97F HX 81 TC 26
WHEELING PTSUNNY 78 74 87 NW8 29.97F HX 81 TC 26
LANSING* N/A N/A N/A N/A MISG N/A
NORTHERLY ISL* N/A 77 72 84 W9 N/A TC 25
LMZ740>746-161600-
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 77 74 250/ 8/ 10 1017.5R 1
WAUKEGAN HARBOR 76 74 290/ 8/ 10 1015.1F 1
WILMETTE BUOY 76 330/ 6/ 8 1017.7F 1
CHICAGO BUOY 76 72 1013.7F 1
HARRISON CRIB 76 270/ 8/ 10 N/A
NORTHERLY ISL 76 290/ 8/ 9 N/A
CALUMET HARBOR 75 240/ 4/ 6 1015.2F
MICHIGAN CITY 74 240/ 12/ 14 1013.3F
MICH CITY BUOY 74 74 250/ 12/ 16 N/A 2/ 3
ST. JOSEPH BUOY 74 73 250/ 12/ 16 1015.4F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-161600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 80 78 94 W5 30.05R HX 88 TC 27
MACOMB* MOSUNNY 83 80 90 W7 30.05R HX 94 TC 28
ILZ028>032-037-038-041>044-048-051>054-059>061-161600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTSUNNY 80 77 90 W7 30.02F HX 87 TC 27
DECATUR PTSUNNY 79 75 87 NW5 30.03S HX 83 TC 26
PEORIA PTSUNNY 81 75 82 W5 30.00F HX 87 TC 27
LINCOLN* PTSUNNY 83 76 79 W6 30.02S HX 92 TC 29
SPRINGFIELD PTSUNNY 80 76 87 SW5 30.03R HX 86 TC 27
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-161600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 79 75 87 W12 30.02F HX 83 TC 26
MATTOON LGT RAIN 76 74 93 S6 30.02 TC 24
ILZ079-100>102-161600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 82 75 78 W9 30.07R HX 89 TC 28
CAHOKIA* LGT RAIN 82 73 74 NW7 30.06R HX 87 TC 28
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-161600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 88 73 62 W8 30.06S HX 96 TC 31
MT. VERNON PTSUNNY 84 73 69 SW3 30.06S HX 90 TC 29
SALEM* N/A 83 76 80 MISG 30.05S HX 91 TC 28
ILZ067-068-072-073-078-083-087-091-161600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTSUNNY 81 74 79 W6 30.04F HX 86 TC 27
FAIRFIELD* PTSUNNY 83 73 69 CALM 30.05S HX 89 TC 29
HARRISBURG* MOSUNNY 89 75 64 W8 30.05F HX 99 TC 32
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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