700
ASUS43 KLOT 261601
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM CDT SAT SEP 26 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.
ILZ001-002-007-009-015-016-024-261700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 68 52 56 E9 30.18S TC 20
STERLING* MOSUNNY 67 50 54 E8 30.22F TC 19
SAVANNA* MOSUNNY 67 54 62 SE8 30.21F TC 20
ILZ003-004-008-010-011-017-018-261700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 64 51 62 SE6 30.25S TC 18
FREEPORT* MOSUNNY 65 54 66 SE8 30.25S TC 19
DE KALB* MOSUNNY 64 50 60 SE8 30.25S TC 18
ILZ005-006-012>014-019>023-261700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 64 49 57 E3 30.24S TC 18
CHICAGO-MIDWAY MOSUNNY 65 47 52 E7 30.24F TC 18
AURORA MOSUNNY 66 51 58 SE9 30.24F TC 19
JOLIET* MOSUNNY 67 50 54 SE6 30.24F TC 19
WAUKEGAN SUNNY 62 49 62 SE9 30.25S TC 17
DUPAGE AIRPORT MOSUNNY 64 50 60 SE7 30.24F TC 18
WHEELING MOSUNNY 63 48 58 VRB5 30.26F TC 17
LANSING* SUNNY 65 46 51 SE5 30.24F TC 18
NORTHERLY ISL* N/A 62 49 62 E5 N/A TC 17
LMZ740>746-261700-
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 61 64 70/ 8/ 12 1022.8R 2/ 4
WAUKEGAN HARBOR 61 64 90/ 8/ 14 1023.6R 2/ 4
WILMETTE BUOY 61 120/ 10/ 12 1026.2S 2/ 4
CHICAGO BUOY 61 63 120/ 6/ 8 1023.1F 2/ 4
HARRISON CRIB 60 110/ 6/ 7 N/A
NORTHERLY ISL 63 100/ 5/ 8 N/A
CALUMET HARBOR 61 70/ 5/ 6 1024.3
MICHIGAN CITY 63 140/ 3/ 4 1023.5F
MICH CITY BUOY 61 60 CALM / 2 N/A 1
ST. JOSEPH BUOY 53 52 340/ 6/ 6 1024.9S 0
ILZ025>027-034>036-040-047-049-050-058-095>099-261700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY LGT RAIN 63 56 78 SE6 30.18R TC 17
MACOMB* CLOUDY 64 56 76 SE7 30.21R TC 18
ILZ028>032-037-038-041>044-048-051>054-059>061-261700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTSUNNY 67 52 58 E8 30.22F TC 19
DECATUR PTSUNNY 68 50 52 SE9 30.20S TC 20
PEORIA PTSUNNY 67 54 63 E7 30.20S TC 19
SPRINGFIELD PTSUNNY 67 53 61 E7 30.19S TC 19
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-261700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 67 52 58 E8 30.21F TC 19
MATTOON PTSUNNY 69 51 52 E5 30.19S TC 21
ILZ079-100>102-261700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 66 52 59 E8 30.18F TC 19
CAHOKIA* PTSUNNY 67 54 63 SE8 30.16F TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-261700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 66 52 59 CALM 30.17S TC 19
EFFINGHAM* PTSUNNY 66 51 57 E3 30.21S TC 19
MARION CLOUDY 68 52 56 E5 30.17F TC 20
MT. VERNON PTSUNNY 68 50 52 CALM 30.19S TC 20
CENTRALIA* CLOUDY 66 52 60 E3 30.19S TC 19
SALEM* CLOUDY 68 53 58 MISG 30.19S TC 20
ILZ067-068-072-073-078-083-087-091-261700-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 70 50 49 SE3 30.19S TC 21
FAIRFIELD* PTSUNNY 66 50 55 CALM 30.19S TC 19
HARRISBURG* PTSUNNY 68 52 57 CALM 30.18S TC 20
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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