National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Regional Weather Roundup
Issued by NWS

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438
ASUS43 KLOT 090901
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 AM CST TUE DEC 09 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.

ILZ001-002-007-009-015-016-024-091000-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         MOCLDY    27  21  78 S13       29.86F WCI  16 TC  -3
STERLING*      MOCLDY    25  20  81 VRB3      29.90F TC  -4
$$

ILZ003-004-008-010-011-017-018-091000-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       CLOUDY    22  17  81 S9        29.89F WCI  12 TC  -6
FREEPORT*      CLOUDY    24  20  85 S17       29.86F WCI  10 TC  -4
DE KALB*       CLOUDY    19  17  90 S15       29.91F WCI   5 TC  -7
PERU*          CLOUDY    25  20  79 S18       29.91F WCI  12 TC  -4
$$

ILZ005-006-012>014-019>023-091000-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  LGT SNOW  22  16  78 S10       29.91F WCI  11 TC  -6
CHICAGO-MIDWAY FLURRIES  22  14  71 S12G21    29.95F WCI  10 TC  -6
AURORA         CLOUDY    21  16  81 S13       29.92F WCI   9 TC  -6
JOLIET*        CLOUDY    25  18  74 S10G16    29.95F WCI  15 TC  -4
WAUKEGAN       CLOUDY    22  16  78 S15       29.89F WCI   9 TC  -6
DUPAGE AIRPORT CLOUDY    22  17  81 S12       29.91F WCI  10 TC  -6
WHEELING       LGT SNOW  22  18  85 S13       29.94F FOG     WCI  10
MORRIS*        CLOUDY    23  19  86 S14       29.94F WCI  10 TC  -5
ROMEOVILLE*    CLOUDY    21  16  79 S15       29.94F WCI   8 TC  -6
LANSING*       CLOUDY    22  13  69 S15       29.97F WCI   9 TC  -6
NORTHERLY ISL*   N/A     24  16  71 S12         N/A  WCI  13 TC  -4
$$

LMZ740>746-091000-
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              25     180/ 21/ 23   N/A
NORTHERLY ISL              23     140/ 11/ 14   N/A
CALUMET HARBOR             22     170/ 12/ 17 1014.6F
BURNS HARBOR               22     180/  8/ 11 1016.3F
MICHIGAN CITY              21     190/ 11/ 14 1017.2F
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-091000-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         MOCLDY    33  27  78 SW16      29.94F WCI  23 TC   1
GALESBURG*     MOCLDY    24  24  97 S12       29.91F WCI  13 TC  -4
MACOMB*        PTCLDY    28  23  81 S10       29.95F WCI  19 TC  -2
JACKSONVILLE*  MOCLDY    30  23  75 S12       29.98F WCI  20 TC  -1
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-091000-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        CLOUDY    26  20  79 S17       29.95F WCI  12 TC  -4
BLOOMINGTON    MOCLDY    25  21  85 S17       29.96F WCI  12 TC  -4
DECATUR        CLOUDY    28  21  75 S17       30.01F WCI  16 TC  -2
PEORIA         MOCLDY    24  20  84 S12       29.95F WCI  13 TC  -4
LINCOLN*       MOCLDY    29  20  67 S14       29.99F WCI  18 TC  -2
SPRINGFIELD    MOCLDY    29  22  75 S14G21    29.99F WCI  18 TC  -2
TAYLORVILLE    MOCLDY    30  23  75 S17G24    30.02F WCI  18 TC  -1
$$

ILZ033-039-045-046-055>057-062-063-091000-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      CLOUDY    25  21  85 S16       30.02F WCI  12 TC  -4
RANTOUL*       CLOUDY    25  20  83 S16       30.01F WCI  12 TC  -4
MATTOON        CLOUDY    28  20  71 S13       30.04F WCI  17 TC  -2
PARIS*         CLOUDY    26  21  79 S14       30.07F WCI  15 TC  -3
$$

ILZ079-100>102-091000-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          CLOUDY    33  24  71 S10       30.06S WCI  24 TC   0
BELLEVILLE     CLOUDY    33  26  73 S9        30.06F WCI  26 TC   1
CAHOKIA*       CLOUDY    34  25  69 S7        30.06F WCI  28 TC   1
SPARTA*        CLOUDY    32  26  78 S13G18    30.11F WCI  22 TC   0
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-091000-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     CLOUDY    32  26  78 SW10      30.14F WCI  24 TC   0
CAIRO*         MOCLDY    32  29  87 SW8       30.20S WCI  25 TC   0
EFFINGHAM*     CLOUDY    29  20  70 SE7       30.10F WCI  22 TC  -2
MT. VERNON     CLOUDY   N/A N/A N/A S9        30.12F
CENTRALIA*       N/A    N/A N/A N/A MISG        N/A
SALEM*         CLOUDY    32  23  69 S8        30.10F WCI  25 TC   0
METROPOLIS*    MOCLDY    30  22  73 CALM      30.19F TC  -1
$$

ILZ067-068-072-073-078-083-087-091-091000-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  MOCLDY    27  23  85 S8        30.15S WCI  19 TC  -3
FLORA*         CLOUDY    28  23  80 S9        30.12F WCI  20 TC  -2
FAIRFIELD*     MOCLDY    29  22  74 S8        30.14S WCI  21 TC  -1
HARRISBURG*    MOCLDY    30  22  71 S6        30.15F WCI  24 TC  -1
ROBINSON*      CLOUDY    27  23  86 S9        30.13R WCI  17 TC  -3
$$

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