530
ASUS43 KLOT 271701
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 PM CDT MON JUL 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.
ILZ001-002-007-009-015-016-024-271800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 92 77 61 SW20G30 29.72F HX 105 TC 33
STERLING* SUNNY 89 81 77 SW14G22 29.72F HX 108 TC 32
SAVANNA* SUNNY 91 80 69 SW12 29.71F HX 108 TC 33
ILZ003-004-008-010-011-017-018-271800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 92 80 68 SW16G24 29.72S HX 110 TC 33
FREEPORT* SUNNY 92 83 75 SW20G25 29.71F HX 115 TC 33
ILZ005-006-012>014-019>023-271800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE TSTM 81 78 91 NW22G35 29.82R VSB 1/2 HX 89
CHICAGO-MIDWAY TSTM 84 79 85 S17G26 29.73F HX 96 TC 29
AURORA MOSUNNY 86 79 79 SW16G26 29.71F HX 99 TC 30
JOLIET* MOSUNNY 85 82 88 SW9 29.74F HX 102 TC 30
WAUKEGAN TSTM 77 76 96 VRB5G23 29.74R VSB 1 TC 25
DUPAGE AIRPORT TSTM 81 78 91 MISG 29.72F HX 89 TC 27
KANKAKEE* MOSUNNY 85 76 75 SW10 29.78F HX 94 TC 29
WHEELING TSTM 76 74 93 SW16G33 29.79R FOG TC 24
LANSING* CLOUDY 80 76 88 S12G17 29.76F FOG HX 86
NORTHERLY ISL* N/A 82 76 81 S13 N/A HX 89 TC 28
LMZ740>746-271800-
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 75 71 1010.6F 2/ 3
WAUKEGAN HARBOR 76 74 1007.5F 2/ 3
WILMETTE BUOY 77 150/ 17/ 23 1009.7F 2/ 3
CHICAGO BUOY 78 75 160/ 12 1005.7F 1/ 2
HARRISON CRIB 79 150/ 20/ 24 N/A
NORTHERLY ISL 80 120/ 7/ 13 N/A
CALUMET HARBOR 83 150/ 12/ 16 1007.4
BURNS HARBOR 1008.1F
MICHIGAN CITY 83 160/ 11/ 14 1006.1F
MICH CITY BUOY 80 75 170/ 10/ 14 N/A 1
ST. JOSEPH BUOY 78 74 170/ 8/ 10 1009.2F 1/ 2
ILZ025>027-034>036-040-047-049-050-058-095>099-271800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 89 78 70 S10 29.83F HX 103 TC 32
MACOMB* PTSUNNY 90 82 76 SW13G21 29.81F HX 110 TC 32
ILZ028>032-037-038-041>044-048-051>054-059>061-271800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 88 76 67 SW16G25 29.82F HX 99 TC 31
DECATUR SUNNY 88 73 61 SW20 29.84F HX 95 TC 31
PEORIA MOSUNNY 90 78 68 SW20 29.77F HX 104 TC 32
LINCOLN* MOSUNNY 91 75 60 SW8G18 29.81F HX 101 TC 33
SPRINGFIELD SUNNY 87 73 62 S14G24 29.83F HX 94 TC 31
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-271800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 87 75 67 SW16G29 29.83F HX 96 TC 31
DANVILLE* SUNNY 88 76 66 W15G22 29.83F HX 99 TC 31
MATTOON SUNNY 89 74 60 SW8G21 29.86F HX 98 TC 32
ILZ079-100>102-271800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 91 72 52 SW14 29.86F HX 98 TC 33
CAHOKIA* SUNNY 92 75 57 VRB6 29.86F HX 103 TC 33
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-271800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE N/A 90 72 55 MISG 29.88F HX 96 TC 32
CAIRO* SUNNY 89 80 75 W7 29.90S HX 106 TC 32
EFFINGHAM* SUNNY 86 75 68 SW12 29.88F HX 95 TC 30
MT. VERNON SUNNY 93 72 50 SW8 29.88F HX 101 TC 34
CENTRALIA* SUNNY 89 69 51 CALM 29.88F HX 94 TC 32
SALEM* SUNNY 88 74 62 MISG 29.88F HX 96 TC 31
ILZ067-068-072-073-078-083-087-091-271800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
FAIRFIELD* SUNNY 88 73 61 CALM 29.88S HX 96 TC 31
HARRISBURG* SUNNY 89 75 63 SW3 29.89S HX 100 TC 32
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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