Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 291901
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 PM CDT TUE SEP 29 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.
ILZ001-002-007-009-015-016-024-292000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 80 51 36 S8 29.93F HX 80 TC 27
STERLING* SUNNY 81 45 28 VRB6 29.96F HX 80 TC 27
SAVANNA* MOSUNNY 77 54 44 SW7 29.94F TC 25
$$
ILZ003-004-008-010-011-017-018-292000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 78 47 33 S5 29.98F TC 26
FREEPORT* MOSUNNY 78 49 34 SW10 29.98F TC 26
DE KALB* MOSUNNY 77 49 36 S7 29.99F TC 25
$$
ILZ005-006-012>014-019>023-292000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 77 51 40 SW9 29.99F TC 25
CHICAGO-MIDWAY PTSUNNY 77 52 41 SW7G17 29.99F TC 25
AURORA SUNNY 78 47 33 SW12 29.98F TC 26
JOLIET* SUNNY 79 52 38 S6 29.99F TC 26
WAUKEGAN SUNNY 70 61 73 S9 29.99F TC 21
DUPAGE AIRPORT SUNNY 76 52 43 S7 30.00F TC 24
WHEELING SUNNY 76 50 40 SW6 30.01F TC 24
LANSING* SUNNY 78 51 39 SW5 30.00F TC 25
NORTHERLY ISL* N/A 68 60 75 E5 N/A TC 20
$$
LMZ740>746-292000-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
WINTHROP HARBOR 65 65 100/ 8/ 10 1017.1F 1
WAUKEGAN HARBOR 65 66 100/ 8/ 10 1016.3F 1
WILMETTE BUOY 65 90/ 8/ 10 1018.6F 1
CHICAGO BUOY 66 64 120/ 8/ 12 1014.9F 1
HARRISON CRIB 67 110/ 9/ 10 N/A
NORTHERLY ISL 68 100/ 5/ 8 N/A
CALUMET HARBOR 75 190/ 7/ 12 1016.2
MICHIGAN CITY 69 20/ 5/ 5 1015.4F
MICH CITY BUOY 65 62 40/ 4/ 6 N/A 0
ST. JOSEPH BUOY 65 64 CALM / 2 1017.3F 0
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-292000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 83 51 33 S13 29.94F HX 81 TC 28
GALESBURG* MOSUNNY 79 52 38 S12 29.96F TC 26
MACOMB* SUNNY 82 51 34 S9 29.97F HX 81 TC 28
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-292000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 81 50 33 S9 30.01F HX 80 TC 27
DECATUR MOSUNNY 82 46 28 S9 30.00F HX 80 TC 28
PEORIA SUNNY 80 48 32 S5 29.97F TC 27
LACON* SUNNY 76 48 37 SW7 29.97F TC 25
SPRINGFIELD SUNNY 83 45 26 SW8 29.98F HX 81 TC 28
TAYLORVILLE NOT AVBL
$$
ILZ033-039-045-046-055>057-062-063-292000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 82 44 26 VRB7 30.01F HX 80 TC 28
MATTOON SUNNY 80 45 28 CALM 30.00F TC 27
$$
ILZ079-100>102-292000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 81 50 34 SE9 29.99F HX 80 TC 27
BELLEVILLE PTSUNNY 83 51 31 SE6 29.96F HX 82 TC 29
CAHOKIA* SUNNY 84 48 28 E7 29.98F HX 82 TC 29
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-292000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 82 45 26 S10G18 29.99F HX 80 TC 28
CAIRO* SUNNY 85 50 29 SE7 29.99F HX 83 TC 29
EFFINGHAM* SUNNY 80 44 27 CALM 30.03F TC 27
MT. VERNON SUNNY 83 46 27 SW6 30.00F HX 81 TC 28
CENTRALIA* SUNNY 84 45 25 SW5 30.00F HX 82 TC 29
SALEM* SUNNY 84 48 28 MISG 30.00F HX 82 TC 29
$$
ILZ067-068-072-073-078-083-087-091-292000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 80 51 36 VRB5 30.02F HX 80 TC 27
FLORA* SUNNY 82 48 30 CALM 30.00F HX 81 TC 28
FAIRFIELD* SUNNY 82 45 26 CALM 30.00F HX 80 TC 28
HARRISBURG* SUNNY 83 49 30 CALM 30.00F HX 82 TC 29
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$