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

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 
906
ASUS43 KLOT 281310
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 AM CDT MON SEP 28 2026

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.

ILZ001-002-007-009-015-016-024-281400-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         SUNNY     52  51  97 CALM      30.14R TC  11
STERLING*      MOSUNNY   51  51 100 CALM      30.15R TC  11
SAVANNA*       PTSUNNY   56  56 100 CALM      30.14R TC  14
$$

ILZ003-004-008-010-011-017-018-281400-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       CLOUDY    50  49  96 CALM      30.15S TC  10
FREEPORT*      CLOUDY    55  54  95 CALM      30.16R TC  13
ROCHELLE*      MOSUNNY   47  47 100 CALM      30.14S FOG     TC   9
DE KALB*       MOSUNNY   51  51 100 CALM      30.15R FOG     TC  10
PERU*          MOSUNNY   54  52  94 CALM      30.13F TC  12
$$

ILZ005-006-012>014-019>023-281400-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  MOSUNNY   56  49  77 CALM      30.11S TC  13
CHICAGO-MIDWAY MOSUNNY   56  51  84 NW3       30.11S TC  13
AURORA         MOSUNNY   50  49  96 CALM      30.12S FOG     TC  10
JOLIET*        MOSUNNY   53  53 100 N3        30.13S TC  11
WAUKEGAN       PTSUNNY   55  51  86 NW6       30.11F TC  13
DUPAGE AIRPORT MOSUNNY   50  48  93 N3        30.13R TC  10
KANKAKEE*      FOG       49  47  95 CALM      30.12S VSB 3/4 TC   9
WHEELING       MOSUNNY   54  51  90 N5        30.13S TC  12
LANSING*         N/A    N/A N/A N/A MISG        N/A
NORTHERLY ISL*   N/A     61  55  81 NW3         N/A  TC  16
$$

LMZ740>746-281400-
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)
WINTHROP HARBOR            59 64  300/  8/ 10 1018.4          1/ 4
WAUKEGAN HARBOR            58 64  270/  8/ 10 1019.2          1/ 4
WILMETTE BUOY              61     340/ 10/ 14 1021.1R         2/ 4
CHICAGO BUOY               60 63  320/ 10/ 14 1018.2          2/ 4
HARRISON CRIB              59     320/  9/ 10   N/A
NORTHERLY ISL              58     270/  3/  4   N/A
CALUMET HARBOR             55     280/  2/  3 1019.4S
MICHIGAN CITY              59     110/  1/  1 1018.4F
MICH CITY BUOY             60 61   50/  4/  6   N/A           1/ 4
ST. JOSEPH BUOY            56 59   20/  4/  6 1019.7R         1/ 4
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-281400-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         CLOUDY    59  55  87 E3        30.12S TC  15
GALESBURG*     SUNNY     50  50 100 CALM      30.15S TC  10
MACOMB*        SUNNY     51  51 100 CALM      30.15S FOG     TC  10
JACKSONVILLE*  MOSUNNY   53  53 100 CALM      30.13R TC  11
PITTSFIELD*    PTSUNNY   58  56  94 CALM      30.13S TC  14
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-281400-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        SUNNY     50  50 100 CALM      30.14R FOG     TC  10
BLOOMINGTON    MOSUNNY   52  52 100 N5        30.14R TC  11
DECATUR        FOG       53  53 100 N6        30.13R VSB 1/4 TC  12
PEORIA         MOSUNNY   51  50  96 NE3       30.13R TC  11
LACON*         FOG       49  47  95 CALM      30.13S VSB<1/4 TC   9
LINCOLN*       MOSUNNY   52  52 100 CALM      30.14R TC  11
SPRINGFIELD    MOSUNNY   51  49  92 CALM      30.13R TC  11
TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-281400-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      FOG       52  52 100 N6        30.12R VSB 1/4 TC  11
RANTOUL*       FOG       53  52  99 N7        30.12R VSB<1/4 TC  11
MATTOON        FOG       48  48 100 N3        30.10R VSB 1/4 TC   9
PARIS*         SUNNY     51  50  97 CALM      30.11R TC  11
$$

ILZ079-100>102-281400-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          SUNNY     57  52  82 VRB3      30.11R TC  14
BELLEVILLE     PTSUNNY   60  53  77 CALM      30.08R TC  16
CAHOKIA*       MOSUNNY   62  51  67 CALM      30.10R TC  17
SPARTA*        MOSUNNY   59  50  72 CALM      30.11R TC  15
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-281400-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     SUNNY     52  52 100 CALM      30.09R TC  11
CAIRO*         SUNNY     58  53  85 CALM      30.08R TC  14
EFFINGHAM*     SUNNY     52  50  92 CALM      30.12R TC  11
MT. VERNON     SUNNY     52  50  93 N3        30.10R TC  11
CENTRALIA*     MOSUNNY   51  50  97 CALM      30.10R TC  11
SALEM*         MOSUNNY   55  52  89 MISG      30.10R TC  13
METROPOLIS*    SUNNY     54  51  90 CALM      30.08R TC  12
$$

ILZ067-068-072-073-078-083-087-091-281400-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  SUNNY     54  50  86 MISG      30.09R TC  12
FLORA*         SUNNY     52  50  93 NE3       30.10R TC  11
FAIRFIELD*     SUNNY     54  47  78 N3        30.09R TC  12
HARRISBURG*    SUNNY     50  49  98 CALM      30.09R TC  10
ROBINSON*      SUNNY     52  52 100 N3        30.09R TC  11
$$

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