731
ASUS43 KLOT 211501
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 AM CDT SUN JUN 21 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.
ILZ001-002-007-009-015-016-024-211600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE RAIN 63 59 87 S7 29.88S TC 17
STERLING* PTSUNNY 64 61 90 SE3 29.92S TC 18
SAVANNA* CLOUDY 65 59 79 E6 29.89F TC 19
ILZ003-004-008-010-011-017-018-211600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 66 58 75 CALM 29.93S TC 19
FREEPORT* CLOUDY 65 61 85 CALM 29.94F TC 19
DE KALB* CLOUDY 67 58 73 SE5 29.94F TC 20
PERU* LGT RAIN 64 61 88 SE5 29.92S TC 18
ILZ005-006-012>014-019>023-211600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 70 56 61 SE6 29.93R TC 21
CHICAGO-MIDWAY CLOUDY 71 57 61 SE3 29.93S TC 22
AURORA CLOUDY 69 59 70 SE6 29.92S TC 21
WAUKEGAN CLOUDY 66 55 67 SE8 29.94R TC 19
DUPAGE AIRPORT CLOUDY 68 58 70 SE3 29.93R TC 20
WHEELING CLOUDY 69 56 62 E5 29.95R TC 21
ROMEOVILLE* PTSUNNY 70 61 73 S6 29.94S TC 21
LANSING* CLOUDY 69 56 64 S5 29.95S TC 21
NORTHERLY ISL* N/A 64 59 83 E2 N/A TC 18
LMZ740>746-211600-
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 59 56 1013.8R 0
WAUKEGAN HARBOR 57 55 330/ 2/ 4 1014.5R 0
WILMETTE BUOY 60 130/ 4/ 6 1015.8R 0
CHICAGO BUOY 63 62 120/ 4/ 8 1012.8R 1
HARRISON CRIB 63 110/ 5/ 5 N/A
NORTHERLY ISL 63 80/ 3/ 7 N/A
CALUMET HARBOR 65 60/ 5/ 6 1013.8
BURNS HARBOR 180/ 3/ 4 1014.6S
MICHIGAN CITY 69 130/ 8/ 10 1012.8R
MICH CITY BUOY 66 64 140/ 6/ 8 992.5F 0
ST. JOSEPH BUOY 66 64 140/ 6/ 6 1015.2R 0
ILZ025>027-034>036-040-047-049-050-058-095>099-211600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY RAIN 61 60 97 E17 29.79F FOG TC 16
MACOMB* RAIN 60 60 99 E13G20 29.87F TC 16
ILZ028>032-037-038-041>044-048-051>054-059>061-211600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLOUDY 67 58 72 E8 29.91F TC 19
DECATUR CLOUDY 70 57 63 SE13 29.88F TC 21
PEORIA CLOUDY 67 56 67 E8 29.88F TC 19
SPRINGFIELD PTSUNNY 69 56 62 SE14G25 29.85F TC 21
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-211600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 72 57 59 E12 29.91F TC 22
DANVILLE* PTSUNNY 72 59 64 SE7 29.94F TC 22
MATTOON PTSUNNY 72 58 61 E15G22 29.89F TC 22
ILZ079-100>102-211600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 73 64 73 SE13 29.83F TC 23
BELLEVILLE CLOUDY 78 70 76 S13 29.82F HX 80 TC 26
CAHOKIA* CLOUDY 77 67 71 SE9 29.81F TC 25
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-211600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE PTSUNNY 80 72 76 S9 29.87F HX 84 TC 27
CAIRO* PTSUNNY 81 75 82 SW5 29.89F HX 86 TC 27
MARION MOSUNNY 79 72 78 S8 29.88F HX 82 TC 26
MT. VERNON PTSUNNY 81 65 58 SE8 29.89F HX 83 TC 27
CENTRALIA* PTSUNNY 80 64 58 S8 29.88F HX 81 TC 27
SALEM* PTSUNNY 78 66 68 MISG 29.88F HX 80 TC 25
ILZ067-068-072-073-078-083-087-091-211600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 78 62 57 SE9 29.90F HX 80 TC 26
FAIRFIELD* PTSUNNY 80 63 57 S8 29.89F HX 81 TC 27
HARRISBURG* MOSUNNY 80 70 72 SE6 29.89F HX 82 TC 26
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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