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
750
ASUS43 KLOT 150410
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM CDT MON SEP 14 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.

ILZ001-002-007-009-015-016-024-150500-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         PTCLDY    71  54  54 SE12G20   29.93F TC  22
STERLING*      CLOUDY    70  52  52 SE10      29.98F TC  21
SAVANNA*       PTCLDY    68  51  55 S12       29.94F TC  20
$$

ILZ003-004-008-010-011-017-018-150500-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       CLOUDY    67  49  52 SE17G28   29.98F TC  19
FREEPORT*      PTCLDY    67  53  60 S18       29.97F TC  20
ROCHELLE*      MOCLDY    66  51  58 SE14G23   29.99F TC  19
DE KALB*       MOCLDY    65  50  58 SE13      30.03F TC  18
PERU*          CLEAR     68  54  60 SE14      30.02F TC  20
$$

ILZ005-006-012>014-019>023-150500-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  MOCLDY    68  48  48 S12G22    30.04F TC  20
CHICAGO-MIDWAY PTCLDY    68  49  50 S9        30.05F TC  20
AURORA         PTCLDY    65  50  58 SE10      30.04S TC  18
JOLIET*        CLOUDY    68  51  54 S5        30.06S TC  20
WAUKEGAN       MOCLDY    67  54  63 S15G28    30.02F TC  19
DUPAGE AIRPORT CLOUDY    67  49  52 S13       30.04F TC  19
KANKAKEE*      CLEAR     62  51  67 SE6       30.09R TC  17
WHEELING       PTCLDY    67  49  52 S14       30.05S TC  19
ROMEOVILLE*    CLOUDY    66  50  55 SE12      30.06F TC  19
LANSING*       CLEAR     65  49  55 SE5       30.08S TC  19
NORTHERLY ISL*   N/A     68  50  52 SE9         N/A  TC  20
$$

LMZ740>746-150500-
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            67 61  130/ 19/ 27 1015.1          4/ 5
WAUKEGAN HARBOR            65 63  170/ 19/ 27 1016.6          4/ 5
WILMETTE BUOY              67     170/ 19/ 23 1019.5F         4/ 4
CHICAGO BUOY               70 68              1016.9          3/ 4
HARRISON CRIB              70     170/ 22/ 27   N/A
NORTHERLY ISL              67     130/  7/ 13   N/A
CALUMET HARBOR             68     150/ 12/ 14 1018.3R
MICHIGAN CITY              66     140/ 13/ 17 1017.2F
MICH CITY BUOY             66 66  150/ 16/ 19   N/A           2/ 2
ST. JOSEPH BUOY            65 61  130/ 12/ 16 1019.7S         1
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-150500-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         CLEAR     78  64  61 S14       29.96R HX  80  TC  26
GALESBURG*     CLEAR     71  56  58 SE7       29.98S TC  22
MACOMB*        CLEAR     72  61  70 S8        29.99S TC  22
JACKSONVILLE*  CLEAR     75  59  57 S12       30.01S TC  24
PITTSFIELD*    CLEAR     76  63  63 SE12      29.99F TC  25
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-150500-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        CLEAR     67  55  65 SE6       30.05S TC  19
BLOOMINGTON    CLEAR     67  55  65 SE12      30.06R TC  19
DECATUR        CLEAR     68  54  60 SE8       30.06S TC  20
PEORIA         CLEAR     71  53  52 SE8       30.01S TC  22
LACON*         CLEAR     67  52  59 SE8       30.00F TC  19
LINCOLN*       CLEAR     72  56  56 S8        30.04R TC  22
SPRINGFIELD    CLEAR     75  53  46 S13G21    30.02R TC  24
TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-150500-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      CLEAR     65  55  70 SE13      30.08S TC  18
RANTOUL*       CLEAR     64  56  76 SE7       30.08S TC  18
MATTOON        CLEAR     70  56  61 SE10      30.06F TC  21
PARIS*         CLEAR     64  55  72 SE6       30.10S TC  18
$$

ILZ079-100>102-150500-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          CLEAR     74  61  63 SE7       30.03S TC  23
BELLEVILLE     CLEAR     74  63  69 S6        30.01S TC  23
CAHOKIA*       CLEAR     76  63  64 SE7       30.02R TC  24
SPARTA*        CLEAR     74  62  64 SE7       30.05S TC  24
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-150500-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     NOT AVBL
CAIRO*         CLEAR     75  69  81 CALM      30.06F TC  24
EFFINGHAM*     CLEAR     71  53  52 SE9       30.09S TC  22
MARION         CLEAR     75  61  60 SE7       30.07F TC  24
MT. VERNON     CLEAR     74  59  59 SE6       30.08S TC  23
CENTRALIA*     CLEAR     71  58  62 SE9       30.05F TC  22
SALEM*         CLEAR     74  58  57 MISG      30.06F TC  23
METROPOLIS*    CLEAR     71  68  91 CALM      30.07F TC  22
$$

ILZ067-068-072-073-078-083-087-091-150500-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  CLEAR     70  60  70 E8        30.09F TC  21
FLORA*         CLEAR     68  57  68 SE7       30.08S TC  20
FAIRFIELD*     CLEAR     70  56  62 CALM      30.08S TC  21
HARRISBURG*    CLEAR     69  64  84 CALM      30.08F TC  20
ROBINSON*      CLEAR     66  61  82 SE3       30.09F TC  19
$$

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