370
ASUS43 KLOT 270903
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 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.
ILZ001-002-007-009-015-016-024-271000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 79 78 97 CALM 29.80S HX 83 TC 26
STERLING* CLOUDY 80 80 100 VRB3 29.83S HX 89 TC 27
SAVANNA* FOG 75 75 98 CALM 29.81S VSB 1/4 TC 24
ILZ003-004-008-010-011-017-018-271000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD FOG 78 78 100 S7 29.84S VSB 1/4 HX 81
FREEPORT* CLOUDY 79 77 95 S3 29.84S VSB 1/2 HX 83
ILZ005-006-012>014-019>023-271000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 79 77 94 SW8 29.83S FOG HX 83
CHICAGO-MIDWAY CLOUDY 78 77 96 SW6 29.83F HX 81 TC 26
AURORA FOG N/A N/A N/A S5 29.84F VSB 1/4
JOLIET* MOCLDY 78 78 100 S3 29.84F FOG HX 80
WAUKEGAN CLOUDY 79 79 100 SW5 29.83R FOG HX 84
DUPAGE AIRPORT CLOUDY 78 78 100 SW9 29.83F FOG HX 81
KANKAKEE* PTCLDY 74 73 95 SW6 29.87F FOG TC 23
WHEELING CLOUDY 80 78 94 W8 29.84F HX 88 TC 27
LANSING* CLOUDY 75 75 100 SW7 29.85F FOG TC 24
NORTHERLY ISL* N/A 78 75 90 SW8 N/A HX 81 TC 26
LMZ740>746-271000-
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 76 70 1010.6R 0
WAUKEGAN HARBOR 78 71 1011.4R 1
WILMETTE BUOY 78 230/ 8/ 10 1013.2F 1
CHICAGO BUOY 78 74 240/ 12 1009.4F 1
HARRISON CRIB 80 230/ 10/ 11 N/A
NORTHERLY ISL 78 240/ 7/ 9 N/A
CALUMET HARBOR 77 210/ 7/ 11 1010.7
BURNS HARBOR 1010.8S
MICHIGAN CITY 77 170/ 11/ 15 1008.4S
MICH CITY BUOY 76 76 200/ 6/ 10 N/A 1
ST. JOSEPH BUOY 74 74 190/ 6/ 6 1011.3R 1
ILZ025>027-034>036-040-047-049-050-058-095>099-271000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 78 76 93 SW5 29.84S HX 81 TC 26
MACOMB* CLEAR 76 76 100 CALM 29.85S TC 24
ILZ028>032-037-038-041>044-048-051>054-059>061-271000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON FOG 76 76 100 S8 29.88R VSB 1/2 TC 24
DECATUR CLOUDY 80 77 90 S9 29.88R HX 87 TC 27
PEORIA CLEAR 79 78 97 CALM 29.84S FOG HX 83
LINCOLN* PTCLDY 78 78 100 CALM 29.86R FOG HX 81
SPRINGFIELD CLEAR 76 74 93 E5 29.85R TC 24
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-271000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 75 75 100 SE5 29.88R FOG TC 24
DANVILLE* CLOUDY 72 72 98 CALM 29.89R VSB<1/4 TC 22
MATTOON MOCLDY 76 74 93 S7 29.88R TC 24
ILZ079-100>102-271000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTCLDY 81 78 91 CALM 29.87R HX 88 TC 27
CAHOKIA* PTCLDY 81 77 88 CALM 29.85R HX 88 TC 27
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-271000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* MOCLDY 77 72 85 E20G28 30.01R TC 25
EFFINGHAM* LGT RAIN 71 71 99 E12G17 29.92R TC 22
MARION CLOUDY 73 67 83 SE9 29.99S TC 23
MT. VERNON MOCLDY 73 68 84 S14 29.93F TC 23
CENTRALIA* PTCLDY 75 70 84 SE14G22 29.93R TC 24
SALEM* CLOUDY 76 71 85 MISG 29.91S TC 25
ILZ067-068-072-073-078-083-087-091-271000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
FAIRFIELD* CLOUDY 71 68 90 S13 29.91F TC 22
HARRISBURG* MOCLDY 69 69 100 NE6 30.02R TC 21
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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