025
ASUS43 KLOT 271806
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 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.
ILZ001-002-007-009-015-016-024-271900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 68 55 63 CALM 30.12F TC 20
6HR MIN TEMP: 56; 6HR MAX TEMP: 68;
STERLING* MOSUNNY 75 49 39 CALM 30.13F TC 24
SAVANNA* MOSUNNY 71 54 54 SW6 30.12F TC 22
ILZ003-004-008-010-011-017-018-271900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 72 49 44 CALM 30.13F TC 22
6HR MIN TEMP: 46; 6HR MAX TEMP: 72;
FREEPORT* MOSUNNY 74 49 41 N3 30.14F TC 23
ROCHELLE* MOSUNNY 72 49 44 CALM 30.13F TC 22
DE KALB* MOSUNNY 72 50 44 N7 30.13F TC 22
ILZ005-006-012>014-019>023-271900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 69 47 45 VRB3 30.11F TC 21
6HR MIN TEMP: 50; 6HR MAX TEMP: 70;
CHICAGO-MIDWAY PTSUNNY 72 42 34 NE7 30.11F TC 22
6HR MIN TEMP: 50; 6HR MAX TEMP: 72;
AURORA MOSUNNY 71 47 42 CALM 30.11F TC 22
6HR MIN TEMP: 46; 6HR MAX TEMP: 72;
JOLIET* SUNNY 74 48 40 N6 30.12F TC 23
WAUKEGAN MOSUNNY 68 50 52 VRB5 30.12F TC 20
6HR MIN TEMP: 45; 6HR MAX TEMP: 68;
DUPAGE AIRPORT MOSUNNY 70 50 49 E7 30.12F TC 21
6HR MIN TEMP: 46; 6HR MAX TEMP: 70;
KANKAKEE* SUNNY 73 45 37 NE5 30.11F TC 23
WHEELING MOSUNNY 70 49 47 E7 30.13F TC 21
6HR MIN TEMP: 48; 6HR MAX TEMP: 70;
LANSING* SUNNY 70 43 38 NE8 30.12F TC 21
NORTHERLY ISL* N/A 67 56 67 N7 N/A TC 19
LMZ740>746-271900-
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/ 6/ 8 1019.0F 1
WAUKEGAN HARBOR 64 64 360/ 6/ 8 1020.0F 1
WILMETTE BUOY 64 40/ 4/ 4 1023.0S 1
CHICAGO BUOY 64 64 30/ 6/ 8 1019.1F 1/ 3
HARRISON CRIB 63 20/ 4/ 6 N/A
NORTHERLY ISL 67 40/ 6/ 7 N/A
CALUMET HARBOR 64 10/ 8/ 10 1020.4
MICHIGAN CITY 63 20/ 5/ 5 1019.4F
MICH CITY BUOY 58 62 30/ 4/ 6 N/A 1
ST. JOSEPH BUOY 54 54 340/ 4/ 4 1020.7F 0
ILZ025>027-034>036-040-047-049-050-058-095>099-271900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 64 50 60 CALM 30.11F TC 18
GALESBURG* PTSUNNY 72 58 61 N3 30.13F TC 22
MACOMB* PTSUNNY 71 56 58 NE5 30.13F TC 22
JACKSONVILLE* PTSUNNY 65 57 75 NE5 30.11F TC 19
PITTSFIELD* CLOUDY 69 57 64 N7 30.12S TC 21
ILZ028>032-037-038-041>044-048-051>054-059>061-271900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 75 47 36 N9 30.12F TC 24
DECATUR PTSUNNY 75 46 35 N6 30.10F TC 24
PEORIA PTSUNNY 70 51 51 CALM 30.11F TC 21
6HR MIN TEMP: 53; 6HR MAX TEMP: 70;
LACON* MOSUNNY 73 49 43 W6 30.10F TC 23
SPRINGFIELD PTSUNNY 71 54 54 CALM 30.10F TC 22
6HR MIN TEMP: 59; 6HR MAX TEMP: 71;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-271900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 72 44 36 CALM 30.10F TC 22
RANTOUL* MOSUNNY 73 44 35 N3 30.10F TC 23
MATTOON MOSUNNY 74 41 30 VRB3 30.08F TC 23
PARIS* MOSUNNY 73 41 31 N5 30.09F TC 23
ILZ079-100>102-271900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTSUNNY 66 54 63 N7 30.11F TC 19
CAHOKIA* PTSUNNY 73 56 54 NE6 30.09F TC 23
SPARTA* PTSUNNY 65 58 77 CALM 30.10F TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-271900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 70 52 52 NW8 30.08F TC 21
CAIRO* PTSUNNY 75 49 40 CALM 30.07F TC 24
EFFINGHAM* PTSUNNY 75 40 27 CALM 30.10F TC 24
MARION MOSUNNY 73 52 46 NW9 30.08F TC 23
MT. VERNON PTSUNNY 74 50 42 W6 30.08F TC 23
CENTRALIA* PTSUNNY 76 49 39 N3 30.09F TC 24
SALEM* PTSUNNY 76 47 35 MISG 30.08F TC 25
METROPOLIS* PTSUNNY 78 45 31 W5 30.05F TC 26
ILZ067-068-072-073-078-083-087-091-271900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 74 37 26 N3 30.07F TC 23
FLORA* PTSUNNY 75 48 38 N5 30.08F TC 24
FAIRFIELD* PTSUNNY 76 43 30 CALM 30.07F TC 25
HARRISBURG* PTSUNNY 77 49 37 NE3 30.07F TC 25
ROBINSON* MOSUNNY 77 43 29 N8 30.07F TC 25
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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