278
ASUS43 KLOT 270706
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 AM 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.
ILZ001-002-007-009-015-016-024-270800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 79 78 97 CALM 29.81F HX 83 TC 26
STERLING* CLOUDY 78 78 100 SE3 29.84F HX 81 TC 26
SAVANNA* FOG 78 77 98 S3 29.83S VSB 1/4 HX 81
ILZ003-004-008-010-011-017-018-270800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD FOG 78 78 100 S8 29.85F VSB 1/4 HX 81
FREEPORT* CLOUDY 80 78 95 S5 29.85F VSB 1/2 HX 86
ROCHELLE* FOG 78 76 94 S3 29.85F VSB 1/2 HX 81
DE KALB* FOG 77 77 100 SW6 29.87S VSB 1 TC 25
PERU* FOG 79 79 100 S5 29.85F VSB 1/4 HX 83
ILZ005-006-012>014-019>023-270800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 79 77 94 S8 29.82F HX 83 TC 26
CHICAGO-MIDWAY CLEAR 78 76 93 SW9 29.84S HX 81 TC 26
AURORA CLOUDY N/A N/A N/A SW5 29.85S FOG
JOLIET* CLOUDY 78 78 100 SW3 29.85S FOG HX 80
WAUKEGAN PTCLDY 78 77 96 SW7 29.82S HX 81 TC 26
DUPAGE AIRPORT CLOUDY 78 77 96 S7 29.84S FOG HX 81
KANKAKEE* CLEAR 75 73 95 SW8 29.87S FOG TC 24
WHEELING PTCLDY 80 78 94 SW7 29.84F HX 88 TC 27
ROMEOVILLE* MOCLDY 75 75 100 S5 29.86R FOG TC 24
LANSING* CLEAR 74 73 99 S5 29.85F FOG TC 23
NORTHERLY ISL* N/A 79 74 84 SW6 N/A HX 82 TC 26
LMZ740>746-270800-
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 74 70 1010.1 0
WAUKEGAN HARBOR 77 72 1011.0 0
WILMETTE BUOY 78 210/ 6/ 10 1013.2F 1
CHICAGO BUOY 78 75 210/ 6 1009.1 0
HARRISON CRIB 80 200/ 14/ 14 N/A
NORTHERLY ISL 79 190/ 4/ 8 N/A
CALUMET HARBOR 79 170/ 4/ 5 1010.6
BURNS HARBOR 1011.2F
MICHIGAN CITY 77 190/ 10/ 11 1008.8F
MICH CITY BUOY 76 76 200/ 8/ 10 N/A 1
ST. JOSEPH BUOY 76 74 190/ 8/ 10 1011.3F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-270800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 80 77 90 S5 29.86F HX 87 TC 27
GALESBURG* PTCLDY 78 78 100 CALM 29.85S HX 82 TC 26
MACOMB* PTCLDY 81 81 100 CALM 29.85S HX 93 TC 27
JACKSONVILLE* PTCLDY 83 83 100 W3 29.83F HX 98 TC 28
ILZ028>032-037-038-041>044-048-051>054-059>061-270800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOCLDY 76 76 100 MISG 29.86F FOG TC 25
BLOOMINGTON CLOUDY 77 77 100 S8 29.88F FOG TC 25
DECATUR MOCLDY 79 78 97 CALM 29.86F FOG HX 83
PEORIA PTCLDY 81 79 94 SE3 29.84F FOG HX 90
LACON* MOCLDY 79 77 94 CALM 29.84F FOG HX 82
LINCOLN* PTCLDY 80 80 100 SE3 29.86S FOG HX 86
SPRINGFIELD PTCLDY 79 76 90 E3 29.84F HX 83 TC 26
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-270800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN FOG 72 72 100 SE5 29.88F VSB 3/4 TC 22
DANVILLE* N/A 73 72 98 S3 29.87F TC 23
MATTOON CLOUDY 77 76 96 SE6 29.86F FOG TC 25
PARIS* FOG 71 70 98 CALM 29.87F VSB 1/4 TC 22
ILZ079-100>102-270800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTCLDY 82 79 91 CALM 29.85F HX 92 TC 28
CAHOKIA* PTCLDY 81 78 91 CALM 29.85F HX 89 TC 27
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-270800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* PTCLDY 79 75 89 CALM 29.91S HX 83 TC 26
EFFINGHAM* HVY RAIN 75 68 79 N13G43 29.91R TC 24
MARION PTCLDY 77 74 91 S9G17 29.90F TC 25
MT. VERNON PTCLDY 77 73 87 S8 29.90R TC 25
CENTRALIA* MOCLDY 78 75 90 CALM 29.87R HX 82 TC 26
SALEM* MOCLDY 78 74 87 MISG 29.87R HX 81 TC 26
METROPOLIS* CLOUDY 75 68 80 E6 29.95F TC 24
ILZ067-068-072-073-078-083-087-091-270800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
FLORA* HVY RAIN 73 72 94 SE7 29.88F FOG TC 23
FAIRFIELD* CLOUDY 74 70 89 E10G18 29.95R TC 23
HARRISBURG* MOCLDY 73 73 99 S7 29.90F TC 23
ROBINSON* CLOUDY 72 72 100 S5 29.87S FOG TC 22
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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