Regional Weather Roundup
Issued by NWS

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237
ASUS43 KLOT 171356
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 AM CDT THU JUL 17 2025

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.

ILZ001-002-007-009-015-016-024-171500-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         CLOUDY    68  64  87 NW8       30.04R TC  20
$$

ILZ003-004-008-010-011-017-018-171500-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       DRZL/FOG  70  63  78 NW12      30.05R VSB 1   TC  21
$$

ILZ005-006-012>014-019>023-171500-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLOUDY    71  64  78 N7        30.00R TC  22
CHICAGO-MIDWAY NOT AVBL
AURORA         PTSUNNY   73  66  78 NW8       30.01R TC  23
WAUKEGAN       CLOUDY    67  60  78 N3        30.01S TC  19
DUPAGE AIRPORT CLOUDY    73  64  73 N7        30.01R TC  23
WHEELING       CLOUDY    70  63  78 N6        30.03R TC  21
ROMEOVILLE*    PTSUNNY   73  70  88 CALM      30.01S TC  23
NORTHERLY ISL*   N/A     70  62  76 N9          N/A  TC  21
$$

LMZ740>746-171500-
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)
S. MID LAKE BUOY           63     340/ 14/ 17 1016.2R
WINTHROP HARBOR            65 67   10/  4/  6   N/A           3/ 7
WAUKEGAN HARBOR            64 64   20/  4/  8   N/A           3/ 8
WILMETTE BUOY              68      10/  8/ 12 1017.8S         4/ 8
CHICAGO BUOY               69 72  360/ 12/ 14 1016.4R         3/ 7
HARRISON CRIB              74     360/ 11/ 14   N/A
NORTHERLY ISL              69     360/  8/ 12   N/A
CALUMET HARBOR                    340/  6/ 12 1015.0
BURNS HARBOR               69     350/  5/  8 1016.9R
MICHIGAN CITY              69     340/  7/  8 1015.0R
MICH CITY BUOY             69 76  340/  8/ 12 1015.0R         6/ 8
ST. JOSEPH BUOY            68 76  350/ 14/ 19 1016.7R         5/ 8
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-171500-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-171500-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PEORIA         NOT AVBL
SPRINGFIELD    MOSUNNY   76  71  85 CALM      30.00R TC  24
TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-171500-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
$$

ILZ079-100>102-171500-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          MOSUNNY   79  73  83 N5        30.00S HX  82  TC  26
CAHOKIA*       MOSUNNY   83  72  69 VRB3      29.99S HX  88  TC  28
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-171500-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     MOSUNNY   84  77  79 SW5       29.99F HX  94  TC  29
MARION         MOSUNNY   82  77  83 S7        30.01F HX  91  TC  28
$$

ILZ067-068-072-073-078-083-087-091-171500-
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
$$