780
ASUS43 KLOT 092101
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 PM CDT WED SEP 09 2026
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR S TO VISIBILITY.
* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
REPORT WEATHER SUCH AS PRECIPITATION OR FOG.
ILZ001-002-007-009-015-016-024-092200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 78 68 71 W13 30.03F HX 80 TC 26
STERLING* CLOUDY 77 71 82 W10 30.03F TC 25
SAVANNA* MOSUNNY 79 70 73 W9 30.03S HX 82 TC 26
ILZ003-004-008-010-011-017-018-092200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 78 70 76 W12 30.01F HX 80 TC 26
FREEPORT* PTSUNNY 78 76 93 W8 30.04S HX 81 TC 26
ILZ005-006-012>014-019>023-092200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 79 67 66 W12G21 29.99S HX 81 TC 26
CHICAGO-MIDWAY PTSUNNY 80 68 66 W13 29.99F HX 83 TC 27
AURORA CLOUDY 78 69 73 W12 30.01S HX 80 TC 26
JOLIET* PTSUNNY 81 71 72 W8 30.01S HX 84 TC 27
WAUKEGAN PTSUNNY 77 71 82 SW12 29.97F TC 25
DUPAGE AIRPORT CLOUDY 78 69 73 W14G20 30.01S HX 80 TC 26
KANKAKEE* PTSUNNY 77 69 75 W8 30.04S TC 25
WHEELING CLOUDY 78 69 73 W10 30.00S HX 80 TC 26
LANSING* PTSUNNY 77 69 74 SW6 30.01S TC 25
NORTHERLY ISL* N/A 79 66 64 W12 N/A HX 81 TC 26
LMZ740>746-092200-
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 74 65 240/ 10/ 14 1020.6R 1
WAUKEGAN HARBOR 72 61 260/ 10/ 17 1015.5F 1
WILMETTE BUOY 75 270/ 14/ 19 1018.6R 1/ 2
CHICAGO BUOY 78 72 1014.4F 1
HARRISON CRIB 78 270/ 12/ 13 N/A
NORTHERLY ISL 78 250/ 10/ 14 N/A
CALUMET HARBOR 78 220/ 8/ 11 1015.9
MICHIGAN CITY 74 250/ 8/ 8 1014.4F
MICH CITY BUOY 71 70 230/ 2/ 4 N/A 1/ 3
ST. JOSEPH BUOY 72 72 210/ 8/ 12 1016.3F 2/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-092200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 73 70 90 NW7 30.06S TC 23
MACOMB* MOSUNNY 75 73 93 W7 30.08F TC 24
PITTSFIELD* LGT RAIN 83 69 62 CALM 30.04F HX 86 TC 28
ILZ028>032-037-038-041>044-048-051>054-059>061-092200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 77 68 73 W9 30.07R TC 25
DECATUR MOSUNNY 85 67 54 NW9 30.04R HX 87 TC 29
PEORIA MOSUNNY 76 68 76 W6 30.04F TC 24
LINCOLN* LGT RAIN 78 66 67 W5 30.06S HX 80 TC 26
SPRINGFIELD MOSUNNY 77 68 73 N12 30.04R TC 25
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-092200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 84 69 60 NW13 30.02S HX 88 TC 29
MATTOON SUNNY 92 66 42 SW7 30.00F HX 94 TC 33
ILZ079-100>102-092200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* MOSUNNY 93 68 43 VRB3 30.01F HX 97 TC 34
SPARTA* SUNNY 92 66 43 CALM 30.04F HX 94 TC 33
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-092200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* SUNNY 91 66 43 SE7 30.02F HX 94 TC 33
MT. VERNON MOSUNNY 96 73 47 SW13 30.03F HX 105 TC 36
SALEM* SUNNY 94 69 43 MISG 30.02F HX 99 TC 35
ILZ067-068-072-073-078-083-087-091-092200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 90 74 59 NW7 30.01F HX 99 TC 32
FAIRFIELD* SUNNY 92 68 45 SW5 30.02F HX 96 TC 33
HARRISBURG* MOSUNNY 86 74 67 SW7 30.06F HX 94 TC 30
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page