516
ASUS43 KLOT 220006
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 PM CDT THU MAY 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.
ILZ001-002-007-009-015-016-024-220100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 67 47 48 E14 30.11F TC 19
6HR MIN TEMP: 65; 6HR MAX TEMP: 71;
ILZ003-004-008-010-011-017-018-220100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 60 42 51 VRB7G18 30.22S TC 16
6HR MIN TEMP: 60; 6HR MAX TEMP: 65;
PERU* MOSUNNY 66 45 45 E16G23 30.16S TC 19
ILZ005-006-012>014-019>023-220100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 53 37 54 NE14 30.22F TC 12
6HR MIN TEMP: 53; 6HR MAX TEMP: 58;
CHICAGO-MIDWAY PTSUNNY 55 37 50 NE13 30.22S TC 13
6HR MIN TEMP: 55; 6HR MAX TEMP: 61;
AURORA PTSUNNY 59 43 55 NE15 30.19F TC 15
6HR MIN TEMP: 59; 6HR MAX TEMP: 63;
WAUKEGAN MOSUNNY 49 37 63 NE14G22 30.23F TC 9
6HR MIN TEMP: 48; 6HR MAX TEMP: 54;
DUPAGE AIRPORT MOSUNNY 56 40 55 NE15 30.21S TC 13
6HR MIN TEMP: 56; 6HR MAX TEMP: 61;
WHEELING MOSUNNY 50 37 61 NE10G18 30.24F TC 10
6HR MIN TEMP: 50; 6HR MAX TEMP: 56;
MORRIS* MOSUNNY 63 43 48 E8G18 30.17F TC 17
ROMEOVILLE* SUNNY 59 45 58 NE14G20 30.20S TC 15
NORTHERLY ISL* N/A 50 40 68 MISG N/A TC 10
LMZ740>746-220100-
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 48 51 170/ 17/ 21 1025.0 3/ 4
WAUKEGAN HARBOR 48 49 340/ 17/ 23 1022.5 3/ 4
WILMETTE BUOY 49 50/ 21/ 27 1023.6F 4/ 5
CHICAGO BUOY 50 55 350/ 17/ 21 1022.0 4/ 5
HARRISON CRIB 49 360/ 20/ 21 N/A
NORTHERLY ISL 50 350/ 15/ 17 N/A
CALUMET HARBOR 51 1023.2F
BURNS HARBOR 50 30/ 8/ 9 1023.4F
MICHIGAN CITY 51 20/ 15/ 15 1022.1F
ST. JOSEPH BUOY 52 360/ 10/ 14 1023.2F 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-220100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 69 48 47 E7 30.06F TC 21
ILZ028>032-037-038-041>044-048-051>054-059>061-220100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
DECATUR CLOUDY 65 47 52 E14G22 30.11S TC 18
PEORIA PTSUNNY 68 36 30 E12G23 30.12R TC 20
6HR MIN TEMP: 68; 6HR MAX TEMP: 72;
SPRINGFIELD CLOUDY 66 45 46 E13 30.10F TC 19
6HR MIN TEMP: 66; 6HR MAX TEMP: 74;
TAYLORVILLE CLOUDY 64 48 55 NE9G16 30.10F TC 18
ILZ033-039-045-046-055>057-062-063-220100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 66 46 48 E15 30.12S TC 19
MATTOON CLOUDY 65 52 62 MISG 30.09F TC 18
ILZ079-100>102-220100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 64 57 77 E9 30.08S TC 18
CAHOKIA* CLOUDY 65 57 75 E8 30.06S TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-220100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 66 59 78 NE7 30.04S TC 19
6HR MIN TEMP: 65; 6HR MAX TEMP: 67;
MARION CLOUDY 66 61 82 NE6 30.05S TC 19
ILZ067-068-072-073-078-083-087-091-220100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 67 57 70 NE7 30.07F TC 19
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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