187
ASUS43 KLOT 272001
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 PM CDT SUN SEP 27 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.
ILZ001-002-007-009-015-016-024-272100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 71 55 56 CALM 30.07F TC 22
STERLING* MOSUNNY 77 49 37 VRB5 30.08F TC 25
SAVANNA* PTSUNNY 75 53 46 W6 30.08F TC 24
ILZ003-004-008-010-011-017-018-272100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 74 49 41 N5 30.09F TC 23
FREEPORT* PTSUNNY 74 50 43 NE6 30.11S TC 23
DE KALB* MOSUNNY 71 48 42 N7 30.09F TC 22
ILZ005-006-012>014-019>023-272100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 72 49 44 NE10 30.08F TC 22
CHICAGO-MIDWAY PTSUNNY 70 49 47 N9 30.08F TC 21
AURORA MOSUNNY 73 49 42 E8 30.08F TC 23
JOLIET* MOSUNNY 74 48 39 CALM 30.08F TC 23
WAUKEGAN MOSUNNY 67 52 58 NE9 30.09F TC 19
DUPAGE AIRPORT MOSUNNY 72 52 49 VRB6 30.08F TC 22
WHEELING MOSUNNY 69 50 50 NE6 30.10F TC 21
LANSING* SUNNY 69 48 46 NE9 30.09F TC 21
NORTHERLY ISL* N/A 68 56 65 MISG N/A TC 20
LMZ740>746-272100-
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 64 65 10/ 8/ 12 1018.1F 1/ 2
WAUKEGAN HARBOR 65 65 360/ 8/ 10 1019.0F 1
WILMETTE BUOY 65 20/ 8/ 12 1022.0F 1
CHICAGO BUOY 65 65 10/ 4/ 6 1018.0F 1/ 3
HARRISON CRIB 65 20/ 8/ 9 N/A
NORTHERLY ISL 67 30/ 6/ 8 N/A
CALUMET HARBOR 64 360/ 7/ 10 1019.1F
MICHIGAN CITY 65 10/ 7/ 7 1018.1F
MICH CITY BUOY 60 63 10/ 4/ 6 N/A 1
ST. JOSEPH BUOY 56 54 330/ 6/ 8 1019.5F 0
ILZ025>027-034>036-040-047-049-050-058-095>099-272100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 68 55 63 CALM 30.07F TC 20
MACOMB* CLOUDY 72 54 53 CALM 30.10S TC 22
ILZ028>032-037-038-041>044-048-051>054-059>061-272100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTSUNNY 77 44 30 N7 30.07F TC 25
DECATUR PTSUNNY 76 45 33 N14 30.05F TC 24
PEORIA PTSUNNY 74 53 48 NE3 30.07F TC 23
SPRINGFIELD PTSUNNY 74 51 44 N5 30.06F TC 23
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-272100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 76 41 28 N6 30.05F TC 24
MATTOON PTSUNNY 76 36 23 N7 30.03F TC 24
ILZ079-100>102-272100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 72 55 56 N6 30.06F TC 22
CAHOKIA* MOSUNNY 74 52 46 NE7 30.04F TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-272100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* PTSUNNY 75 39 26 CALM 30.05F TC 24
MT. VERNON PTSUNNY 77 42 28 VRB5 30.03F TC 25
CENTRALIA* PTSUNNY 79 43 27 N6 30.04S TC 26
SALEM* PTSUNNY 79 49 34 MISG 30.03F TC 26
ILZ067-068-072-073-078-083-087-091-272100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 75 38 26 NW7 30.02F TC 24
FAIRFIELD* PTSUNNY 77 42 29 N5 30.02F TC 25
HARRISBURG* PTSUNNY 79 45 30 NE8 30.02F TC 26
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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