038
ASUS43 KLOT 171903
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 PM CDT MON AUG 17 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.
ILZ001-002-007-009-015-016-024-172000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 82 61 48 NW7 30.06F HX 83 TC 28
STERLING* PTSUNNY 81 61 50 N6 30.07F HX 82 TC 27
SAVANNA* SUNNY 81 60 47 W6 30.07S HX 82 TC 27
ILZ003-004-008-010-011-017-018-172000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 77 58 51 NW10 30.07F TC 25
FREEPORT* PTSUNNY 77 62 59 N5 30.09S TC 25
ILZ005-006-012>014-019>023-172000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 77 63 61 NE7 30.02F TC 25
CHICAGO-MIDWAY PTSUNNY 77 63 61 E12 30.03S TC 25
AURORA SUNNY 78 61 55 NW12 30.04S HX 80 TC 26
WAUKEGAN PTSUNNY 74 64 71 VRB6 30.04S TC 23
DUPAGE AIRPORT SUNNY 79 59 50 NW8 30.03F HX 80 TC 26
WHEELING PTSUNNY 76 63 64 E8 30.05S TC 24
LANSING* MOSUNNY 77 63 60 NE10G16 30.04S TC 25
LMZ740>746-172000-
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 72 75 60/ 6/ 10 1016.8S 2/ 4
WAUKEGAN HARBOR 72 74 20/ 8/ 10 1017.7R 2/ 4
WILMETTE BUOY 72 70/ 8/ 12 1020.5R 2/ 5
CHICAGO BUOY 72 74 1016.3F 2/ 5
HARRISON CRIB 72 20/ 10/ 11 N/A
CALUMET HARBOR 360/ 9/ 12 1017.4
MICHIGAN CITY 73 10/ 11/ 13 1015.6
MICH CITY BUOY 71 74 360/ 10/ 14 N/A 3/ 4
ST. JOSEPH BUOY 71 75 350/ 10/ 14 1017.7F 3/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-172000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 79 62 56 NW7 30.10S HX 80 TC 26
MACOMB* MOSUNNY 80 66 63 NW10G16 30.11S HX 82 TC 27
ILZ028>032-037-038-041>044-048-051>054-059>061-172000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 80 64 58 NW16 30.07F HX 82 TC 27
DECATUR MOSUNNY 80 63 55 N16G23 30.06S HX 81 TC 27
PEORIA MOSUNNY 80 61 52 N9 30.06F HX 81 TC 27
SPRINGFIELD MOSUNNY 81 63 54 N12 30.07S HX 82 TC 27
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-172000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 79 67 66 NW12G21 30.04S HX 81 TC 26
MATTOON PTSUNNY 79 66 64 N12 30.04S HX 81 TC 26
ILZ079-100>102-172000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOSUNNY 81 66 61 NW10 30.09S HX 83 TC 27
BELLEVILLE MOSUNNY 84 69 61 N12 30.05S HX 87 TC 29
CAHOKIA* MOSUNNY 81 65 58 N9 30.08R HX 83 TC 27
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-172000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
MT. VERNON PTSUNNY 82 68 62 VRB5 30.05R HX 85 TC 28
SALEM* N/A 81 69 65 MISG 30.06S HX 84 TC 27
ILZ067-068-072-073-078-083-087-091-172000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 84 69 60 NW15 30.00S HX 88 TC 29
FAIRFIELD* MOSUNNY 83 68 61 NW6 30.03S HX 86 TC 28
HARRISBURG* CLOUDY 85 73 66 NW7 30.03S HX 91 TC 29
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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