Regional Weather Roundup
Issued by NWS

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317
ASUS43 KLOT 040156
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 PM CST WED DEC 03 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.

ILZ001-002-007-009-015-016-024-040300-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         PTCLDY    20  13  74 NW8       30.24R WCI  10 TC  -7
$$

ILZ003-004-008-010-011-017-018-040300-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       PTCLDY    22  12  65 NW18      30.21R WCI   7 TC  -6
$$

ILZ005-006-012>014-019>023-040300-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLOUDY    26  18  71 NW9       30.14R WCI  17 TC  -3
CHICAGO-MIDWAY FRZ DRZL  28  22  78 NW13      30.14R FOG     WCI  17
AURORA         CLOUDY    25  20  81 N13       30.15R WCI  14 TC  -4
WAUKEGAN       CLOUDY    23  14  68 NW10      30.15R WCI  12 TC  -5
DUPAGE AIRPORT CLOUDY    25  17  72 NW14      30.15R WCI  13 TC  -4
WHEELING       CLOUDY    26  18  71 NW13      30.16R WCI  15 TC  -3
ROMEOVILLE*    CLOUDY    27  23  86 NW12G22   30.16R WCI  16 TC  -3
NORTHERLY ISL*   N/A     28  22  78 NW12        N/A  WCI  18 TC  -2
$$

LMZ740>746-040300-
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           30 44  320/ 16/ 19 1020.3R
HARRISON CRIB              29     310/ 18/ 21   N/A
NORTHERLY ISL              29     290/  8/ 17   N/A
CALUMET HARBOR             30     290/  7     1019.5
BURNS HARBOR               31     260/  7/  8 1020.3R
MICHIGAN CITY              33     320/  4/  6 1019.2R
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-040300-
WEST-CENTRAL ILLINOIS

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

ILZ028>032-037-038-041>044-048-051>054-059>061-040300-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
DECATUR        CLOUDY    31  27  85 SW6       30.16S WCI  25 TC  -1
PEORIA         NOT AVBL
SPRINGFIELD    CLOUDY    33  31  92 NW14      30.18R WCI  23 TC   1
TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-040300-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      CLOUDY    29  27  92 SW8       30.15R WCI  21 TC  -2
MATTOON        CLOUDY    29  26  89 S6        30.15S WCI  23 TC  -2
$$

ILZ079-100>102-040300-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          MOCLDY    32  28  86 CALM      30.18R TC   0
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-040300-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     CLOUDY    32  27  81 SW6       30.20R WCI  26 TC   0
$$

ILZ067-068-072-073-078-083-087-091-040300-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  CLOUDY    30  27  88 SW5       30.19R WCI  25 TC  -1
$$

ABBREVIATIONS USED IN REMARKS
   TC - TEMPERATURE IN CELSIUS
  WCI - WIND CHILL INDEX
   HX - HEAT INDEX
  VSB - VISIBILITY
$$