ASUS43 KLOT 211258

RWRIL 



ILLINOIS REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL

800 AM CDT TUE APR 21 2026



NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO

SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.



* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT

  REPORT WEATHER SUCH AS PRECIPITATION OR FOG.



ILZ001-002-007-009-015-016-024-211400-

NORTHWEST ILLINOIS

  

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MOLINE         MOSUNNY   58  43  57 SW10G22   29.92F TC  14           

$$



ILZ003-004-008-010-011-017-018-211400-

NORTH CENTRAL ILLINOIS

  

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

ROCKFORD       CLOUDY    53  43  68 S6        29.96F TC  12           

$$



ILZ005-006-012>014-019>023-211400-

NORTHEAST ILLINOIS

  

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

CHICAGO-OHARE  PTSUNNY   55  40  56 SW10      29.97F TC  13           

CHICAGO-MIDWAY NOT AVBL                                               

AURORA         MOSUNNY   51  43  74 S8        29.98F TC  11           

WAUKEGAN       MOSUNNY   56  41  57 SW18      29.93F TC  13           

DUPAGE AIRPORT MOSUNNY   53  42  66 S12       29.98F TC  12           

WHEELING       MOSUNNY   54  41  61 SW12      29.98F TC  12           

ROMEOVILLE*    SUNNY     54  45  71 S12       30.01F TC  12           

NORTHERLY ISL*   N/A     55  38  52 SW14        N/A  TC  13           

$$



LMZ740>746-211400-

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               44              1012.8F         2/ 4

WAUKEGAN HARBOR            53 47              1014.9F         2/ 4

HARRISON CRIB              54     190/ 19/ 21   N/A

NORTHERLY ISL              53     220/  7/ 13   N/A

CALUMET HARBOR                    190/ 10/ 15 1015.8

BURNS HARBOR               52     190/ 10/ 15 1017.3S

MICHIGAN CITY              51     160/ 18/ 22 1015.8F

ST. JOSEPH BUOY            50     180/ 14/ 17 1017.2F         2/ 3

$$



ILZ025>027-034>036-040-047-049-050-058-095>099-211400-

WEST-CENTRAL ILLINOIS

  

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

$$



ILZ028>032-037-038-041>044-048-051>054-059>061-211400-

CENTRAL ILLINOIS

  

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

PEORIA         NOT AVBL                                               

SPRINGFIELD    SUNNY     57  42  57 S12       30.08S TC  14           

TAYLORVILLE    NOT AVBL                                               

$$



ILZ033-039-045-046-055>057-062-063-211400-

EAST-CENTRAL ILLINOIS

  

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

$$



ILZ079-100>102-211400-

SOUTHWEST ILLINOIS

  

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

ALTON          SUNNY     57  45  62 S10       30.13S TC  14           

CAHOKIA*       SUNNY     59  43  55 S5        30.13F TC  15           

$$



ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-211400-

SOUTH-CENTRAL ILLINOIS

  

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

CARBONDALE     SUNNY     61  45  55 W8        30.20R TC  16           

$$



ILZ067-068-072-073-078-083-087-091-211400-

SOUTHEAST ILLINOIS

  

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

$$



ABBREVIATIONS USED IN REMARKS

   TC - TEMPERATURE IN CELSIUS

  WCI - WIND CHILL INDEX

   HX - HEAT INDEX

  VSB - VISIBILITY

$$