037
ASUS43 KLOT 301901
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 PM CDT WED SEP 30 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.
ILZ001-002-007-009-015-016-024-302000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE LGT RAIN 65 63 93 S7 29.84F FOG TC 18
STERLING* CLOUDY 64 64 100 CALM 29.87F FOG TC 18
SAVANNA* LGT RAIN 65 64 98 S8 29.85F TC 18
ILZ003-004-008-010-011-017-018-302000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD LGT RAIN 64 63 96 S10 29.88F TC 18
FREEPORT* CLOUDY 66 65 94 SW14 29.87F TC 19
DE KALB* DRIZZLE 62 62 100 S9 29.89F TC 17
ILZ005-006-012>014-019>023-302000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE LGT RAIN 63 61 93 SW10G21 29.88F TC 17
CHICAGO-MIDWAY LGT RAIN 63 61 93 S12 29.90F TC 17
AURORA LGT RAIN 64 63 96 S9 29.89F FOG TC 18
JOLIET* LGT RAIN 64 64 100 S7 29.91F TC 18
WAUKEGAN CLOUDY 64 62 93 SW13 29.87S TC 18
DUPAGE AIRPORT LGT RAIN 62 61 96 S10G20 29.89F FOG TC 17
WHEELING LGT RAIN 63 61 93 SW10 29.90S TC 17
LANSING* RAIN 62 60 93 S9 29.92F TC 17
LMZ740>746-302000-
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 65 170/ 16/ 21 1012.5S 2/ 4
WAUKEGAN HARBOR 65 64 210/ 14/ 17 1012.2F 2/ 4
WILMETTE BUOY 63 170/ 14/ 17 1013.9F 2/ 4
CHICAGO BUOY 63 64 210/ 8/ 12 1011.5F 2/ 3
HARRISON CRIB 63 190/ 20/ 21 N/A
NORTHERLY ISL 62 190/ 7/ 12 N/A
CALUMET HARBOR 180/ 9/ 15 N/A
MICHIGAN CITY 63 170/ 12/ 15 1012.6F
MICH CITY BUOY 63 63 180/ 14/ 19 N/A 1/ 2
ST. JOSEPH BUOY 62 61 160/ 10/ 14 1014.3F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-302000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 75 62 64 E6 29.87F TC 24
MACOMB* CLOUDY 68 66 94 S6 29.90F TC 20
ILZ028>032-037-038-041>044-048-051>054-059>061-302000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLOUDY 68 62 81 SE6 29.94F TC 20
DECATUR CLOUDY 84 57 39 VRB6 29.92F HX 83 TC 29
PEORIA LGT RAIN 65 62 90 E3 29.90F TC 18
SPRINGFIELD CLOUDY 74 59 59 NE8 29.90F TC 23
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-302000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 81 53 37 CALM 29.93F HX 80 TC 27
MATTOON PTSUNNY 85 55 35 SW7G18 29.92F HX 83 TC 29
ILZ079-100>102-302000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 91 57 31 SW15 29.89F HX 90 TC 33
CAHOKIA* MOSUNNY 93 60 33 SW7 29.88F HX 93 TC 34
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-302000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 91 57 31 SW12G20 29.93F HX 90 TC 33
EFFINGHAM* MOSUNNY 88 53 29 SE8 29.94F HX 86 TC 31
MT. VERNON SUNNY 91 57 31 SW13G20 29.93F HX 89 TC 33
CENTRALIA* SUNNY 94 55 26 SW10G17 29.92F HX 91 TC 34
SALEM* MOSUNNY 93 57 29 MISG 29.91F HX 92 TC 34
ILZ067-068-072-073-078-083-087-091-302000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 85 57 38 S13 29.95F HX 84 TC 29
FAIRFIELD* SUNNY 91 52 26 SW12 29.93F HX 88 TC 33
HARRISBURG* MOSUNNY 90 57 32 SW9 29.95F HX 89 TC 32
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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