Regional Weather Roundup
Issued by NWS

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501
ASUS43 KLOT 042101
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 PM CST THU DEC 04 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.

ILZ001-002-007-009-015-016-024-042200-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         SUNNY     13   0  56 SE5       30.34F WCI   5 TC -11
STERLING*      SUNNY     12  -1  56 SW5       30.36S WCI   4 TC -11
$$

ILZ003-004-008-010-011-017-018-042200-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       MOSUNNY   13  -3  49 SW5       30.33F WCI   5 TC -11
DE KALB*       SUNNY     14   0  54 CALM      30.31F TC -10
$$

ILZ005-006-012>014-019>023-042200-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  MOSUNNY   20  -6  31 CALM      30.31F TC  -7
CHICAGO-MIDWAY MOSUNNY   21  10  62 N3        30.32F TC  -6
AURORA         SUNNY      8   1  73 NW6       30.32F WCI  -2 TC -13
JOLIET*        SUNNY     21   2  44 CALM      30.34S TC  -6
WAUKEGAN       SUNNY     18 -12  26 CALM      30.31F TC  -8
DUPAGE AIRPORT SUNNY     18  -5  36 CALM      30.31F TC  -8
WHEELING       SUNNY     20  -8  28 CALM      30.33F TC  -7
MORRIS*        SUNNY     12   2  65 NW3       30.33F TC -11
ROMEOVILLE*    SUNNY     19  -2  38 NW5       30.32F WCI  13 TC  -7
LANSING*       SUNNY     24  10  54 N5        30.32S WCI  18 TC  -5
NORTHERLY ISL*   N/A     21  13  71 MISG        N/A  TC  -6
$$

LMZ740>746-042200-
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           22 44  240/  2/  4 1027.7F
HARRISON CRIB              22     340/  9/ 11   N/A
NORTHERLY ISL              24     360/  5/  7   N/A
CALUMET HARBOR             22     330/  4/  6 1026.1F
BURNS HARBOR               27      CALM  /  4 1026.8F
MICHIGAN CITY              26      10/  5/  7 1026.7F
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-042200-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         SUNNY     19   5  54 NW3       30.33F TC  -7
MACOMB*        SUNNY     13   4  68 CALM      30.36F TC -10
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-042200-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        SUNNY     13   1  58 CALM      30.34F TC -10
BLOOMINGTON    SUNNY     21   4  47 NE6       30.33S WCI  13 TC  -6
DECATUR        SUNNY     18   4  54 N6        30.32F WCI  10 TC  -8
PEORIA         SUNNY     20  -2  38 CALM      30.34F TC  -7
LACON*         SUNNY     14   2  59 CALM      30.35S TC -10
LINCOLN*       SUNNY     17  -1  45 N3        30.35F TC  -8
SPRINGFIELD    SUNNY     16   2  54 NE6       30.34F WCI   7 TC  -9
TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-042200-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      SUNNY     17   9  70 N7        30.32S WCI   8 TC  -8
RANTOUL*       SUNNY     15   6  66 N6        30.33S WCI   7 TC  -9
MATTOON        SUNNY     17   8  67 N8        30.30F WCI   7 TC  -8
PARIS*         SUNNY     22  12  64 NW7       30.31S WCI  14 TC  -5
$$

ILZ079-100>102-042200-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          SUNNY     21   7  53 N9        30.33F WCI  11 TC  -6
BELLEVILLE     MOSUNNY   24  11  57 N6        30.32R WCI  17 TC  -4
CAHOKIA*       SUNNY     25  11  55 NE8       30.32S WCI  16 TC  -4
SPARTA*        PTSUNNY   25  14  63 N7        30.30F WCI  17 TC  -4
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-042200-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     PTSUNNY   29  17  61 N9        30.26F WCI  20 TC  -2
EFFINGHAM*     MOSUNNY   23  11  61 N5        30.32F WCI  16 TC  -5
MARION         MOSUNNY   30  19  64 N6        30.25F WCI  24 TC  -1
MT. VERNON     PTSUNNY  N/A N/A N/A NE7       30.28F
CENTRALIA*       N/A    N/A N/A N/A MISG        N/A
SALEM*         MOSUNNY   24  14  64 N6        30.30S WCI  17 TC  -4
METROPOLIS*    CLOUDY    32  21  63 CALM      30.25F TC   0
$$

ILZ067-068-072-073-078-083-087-091-042200-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  PTSUNNY   29  19  66 N9        30.29F WCI  20 TC  -2
FLORA*         PTSUNNY   25  16  68 N10       30.30F WCI  15 TC  -4
FAIRFIELD*     CLOUDY    28  19  70 N7        30.29F WCI  20 TC  -2
HARRISBURG*    CLOUDY    31  19  63 N8        30.27F WCI  23 TC  -1
$$

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