343
ASUS43 KLOT 272101
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 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.
ILZ001-002-007-009-015-016-024-272200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 95 77 55 W20G28 29.68F HX 109 TC 35
STERLING* SUNNY 96 77 54 SW16G24 29.67F HX 111 TC 36
SAVANNA* SUNNY 94 78 59 W12G17 29.67F HX 110 TC 35
ILZ003-004-008-010-011-017-018-272200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 95 75 52 SW17G29 29.66F HX 107 TC 35
FREEPORT* SUNNY 93 80 65 SW15G23 29.68F HX 111 TC 34
DE KALB* MOSUNNY 83 77 81 SE14 29.71S HX 92 TC 28
ILZ005-006-012>014-019>023-272200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 72 67 84 S14 29.71F TC 22
CHICAGO-MIDWAY PTSUNNY 73 69 87 S10 29.72F TC 23
AURORA MOSUNNY 79 73 82 SE9 29.70S HX 82 TC 26
JOLIET* HVY RAIN 75 75 100 NE10G24 29.76R VSB 1/2 TC 24
WAUKEGAN NOT AVBL
DUPAGE AIRPORT TSTM 77 74 90 SE16 29.70F TC 25
KANKAKEE* PTSUNNY 72 70 95 E9 29.80R TC 22
WHEELING MOSUNNY 73 69 87 S15 29.72S TC 23
NORTHERLY ISL* N/A 73 68 84 S8 N/A TC 23
LMZ740>746-272200-
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 69 68 1003.7F 3/ 4
WAUKEGAN HARBOR 73 71 1012.0R 2/ 4
WILMETTE BUOY 73 1008.5F 3/ 4
CHICAGO BUOY 75 74 160/ 14 1005.2 2/ 3
HARRISON CRIB 74 170/ 18/ 20 N/A
NORTHERLY ISL 71 160/ 12/ 13 N/A
CALUMET HARBOR 74 150/ 7/ 11 1007.0F
BURNS HARBOR 1007.8F
MICHIGAN CITY 73 150/ 13/ 16 1005.7F
MICH CITY BUOY 74 75 160/ 14/ 17 N/A 2/ 2
ST. JOSEPH BUOY 72 72 60/ 16/ 19 1012.3R 1/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-272200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 93 74 53 SW10 29.77R HX 103 TC 34
GALESBURG* MOSUNNY 92 78 63 SW15 29.74S HX 108 TC 34
MACOMB* MOSUNNY 93 83 71 W13 29.76R HX 118 TC 34
JACKSONVILLE* MOSUNNY 93 77 59 SW10G20 29.76F HX 107 TC 34
ILZ028>032-037-038-041>044-048-051>054-059>061-272200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTSUNNY 92 78 63 SW21G28 29.74F HX 107 TC 33
DECATUR MOSUNNY 93 78 61 SW20G28 29.74F HX 108 TC 34
PEORIA TSTM 89 82 79 SW20 29.70F HX 110 TC 32
LINCOLN* MOSUNNY 90 81 73 SW6 29.74F HX 109 TC 32
SPRINGFIELD MOSUNNY 91 76 61 SW10 29.75F HX 103 TC 33
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-272200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 87 78 74 SW8 29.76F HX 100 TC 31
DANVILLE* PTSUNNY 83 78 84 NE5 29.81R HX 93 TC 28
MATTOON MOSUNNY 88 77 69 S9 29.77F HX 100 TC 31
ILZ079-100>102-272200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 93 75 55 W9 29.81F HX 104 TC 34
BELLEVILLE PTSUNNY 97 78 54 SW9 29.79S HX 113 TC 36
CAHOKIA* SUNNY 96 75 50 SW7 29.80S HX 108 TC 36
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-272200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 95 79 59 MISG 29.82F HX 112 TC 35
CAIRO* SUNNY 93 83 71 SW7 29.84F HX 118 TC 34
EFFINGHAM* MOSUNNY 90 79 70 S9 29.82F HX 105 TC 32
MT. VERNON SUNNY 97 77 52 W10G18 29.82F HX 112 TC 36
CENTRALIA* SUNNY 96 77 53 SW12G17 29.81F HX 110 TC 36
SALEM* SUNNY 95 80 62 MISG 29.81F HX 114 TC 35
ILZ067-068-072-073-078-083-087-091-272200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
FAIRFIELD* SUNNY 92 76 59 SW7 29.82F HX 104 TC 33
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page