Regional Weather Roundup
Issued by NWS

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984
ASUS43 KLOT 112156
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 PM CST THU DEC 11 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.

ILZ001-002-007-009-015-016-024-112300-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         LGT SNOW  25  20  81 SE3       29.96F TC  -4
$$

ILZ003-004-008-010-011-017-018-112300-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       CLOUDY    24  16  71 CALM      29.99S TC  -4
$$

ILZ005-006-012>014-019>023-112300-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLOUDY    26  15  63 W5        29.97F WCI  20 TC  -3
CHICAGO-MIDWAY NOT AVBL
AURORA         CLOUDY    24  17  74 CALM      29.97F TC  -4
WAUKEGAN       CLOUDY    24  13  62 W3        29.97F TC  -4
DUPAGE AIRPORT CLOUDY    25  17  72 CALM      29.97S TC  -4
WHEELING       CLOUDY    25  15  66 W6        29.99F WCI  18 TC  -4
ROMEOVILLE*    CLOUDY    27  19  74 W6        29.98F WCI  20 TC  -3
NORTHERLY ISL*   N/A     27  16  63 W6          N/A  WCI  21 TC  -3
$$

LMZ740>746-112300-
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)
HARRISON CRIB              27     320/  3/  4   N/A
NORTHERLY ISL              27     310/  5/  8   N/A
CALUMET HARBOR                    200/  2/  5 1015.2
BURNS HARBOR               28     250/  3/  4 1015.9S
MICHIGAN CITY              27     250/  6/  8 1016.0R
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-112300-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         LGT SNOW  27  23  85 E13       29.91F FOG     WCI  16
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-112300-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PEORIA         NOT AVBL
SPRINGFIELD    LGT SNOW  28  22  78 E5        29.97F WCI  23 TC  -2
TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-112300-
EAST-CENTRAL ILLINOIS

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

ILZ079-100>102-112300-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          CLOUDY    32  25  74 E10       29.97S WCI  24 TC   0
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-112300-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     CLOUDY    39  27  62 S5        29.96F TC   4
MARION         CLOUDY    37  27  65 S6        29.99S WCI  33 TC   3
$$

ILZ067-068-072-073-078-083-087-091-112300-
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
$$