621
ASUS43 KLOT 220210
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 PM CDT MON JUL 21 2025
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.
ILZ001-002-007-009-015-016-024-220300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 76 73 91 E7 29.96F TC 24
ILZ003-004-008-010-011-017-018-220300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 74 60 61 E6 30.04R TC 23
ROCHELLE* PTCLDY 73 61 67 E8 30.03S TC 23
DE KALB* PTCLDY 70 63 77 E7 30.05R TC 21
PERU* MOCLDY 76 72 86 E6 30.01S TC 25
ILZ005-006-012>014-019>023-220300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 73 60 63 E8 30.03S TC 23
CHICAGO-MIDWAY MOCLDY 74 62 66 E10 30.03F TC 23
AURORA PTCLDY 71 64 78 E6 30.02S TC 22
JOLIET* PTCLDY 74 64 70 E7 30.03S TC 24
WAUKEGAN CLEAR 67 60 78 NE3 30.04S TC 19
DUPAGE AIRPORT PTCLDY 72 61 68 E6 30.03S TC 22
KANKAKEE* CLEAR 73 71 93 SE5 30.04S TC 23
WHEELING CLEAR 70 63 78 E3 30.05F TC 21
MORRIS* PTCLDY 73 67 82 E7 30.01S TC 23
ROMEOVILLE* PTCLDY 73 64 73 E9 30.04S TC 23
LANSING* PTCLDY 72 65 80 E7 30.04S TC 22
NORTHERLY ISL* N/A 70 64 81 NE6 N/A TC 21
LMZ740>746-220300-
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)
S. MID LAKE BUOY 69 70 40/ 8/ 10 1017.3S 1/ 3
WINTHROP HARBOR 69 69 350/ 6/ 8 N/A 1/ 3
WAUKEGAN HARBOR 69 70 360/ 6/ 8 N/A 1/ 3
WILMETTE BUOY 71 80/ 6/ 10 1019.3S 2/ 4
CHICAGO BUOY 73 74 70/ 4/ 8 1017.7 2/ 4
HARRISON CRIB 78 70/ 8/ 9 N/A
NORTHERLY ISL 70 30/ 3/ 9 N/A
CALUMET HARBOR 72 40/ 5/ 7 1016.3F
BURNS HARBOR 74 70/ 6/ 8 1017.6S
MICHIGAN CITY 73 60/ 7/ 9 1015.8R
MICH CITY BUOY 74 75 60/ 10/ 12 1015.6S 2/ 4
ST. JOSEPH BUOY 73 75 360/ 8/ 12 1018.1F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-220300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 77 74 90 SE5 29.95F TC 25
GALESBURG* CLOUDY 76 73 88 E5 29.99F TC 25
MACOMB* PTCLDY 75 74 98 E3 30.00S TC 24
JACKSONVILLE* PTCLDY 76 76 99 E3 29.97F TC 25
PITTSFIELD* CLEAR 77 76 98 CALM 29.98F TC 25
ILZ028>032-037-038-041>044-048-051>054-059>061-220300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOCLDY 74 72 91 E6 30.02S TC 24
BLOOMINGTON PTCLDY 74 74 100 E6 30.03R TC 23
DECATUR PTCLDY 78 75 90 E6 30.00S HX 81 TC 26
PEORIA PTCLDY 79 73 82 E6 29.98F HX 82 TC 26
LACON* PTCLDY 76 71 85 E5 29.99S TC 24
LINCOLN* PTCLDY 77 77 100 E5 29.99S TC 25
SPRINGFIELD PTCLDY 81 77 88 E9 29.98S HX 88 TC 27
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-220300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
RANTOUL* PTCLDY 75 73 92 E5 30.02S TC 24
MATTOON PTCLDY 77 75 93 NE3 30.00R TC 25
ILZ079-100>102-220300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 77 75 94 VRB5 29.98S TC 25
BELLEVILLE CLEAR 79 76 89 CALM 29.96R HX 84 TC 26
CAHOKIA* CLEAR 79 75 87 CALM 29.97S HX 83 TC 26
SPARTA* PTCLDY 82 78 89 CALM 30.00R HX 90 TC 28
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-220300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE PTCLDY 79 77 94 E3 29.98R HX 83 TC 26
CAIRO* PTCLDY 81 77 86 CALM 29.99R HX 88 TC 27
EFFINGHAM* PTCLDY 78 78 99 CALM 30.02R HX 80 TC 26
MARION PTCLDY 78 76 96 CALM 30.00R TC 25
MT. VERNON PTCLDY 77 76 96 CALM 29.99R TC 25
CENTRALIA* PTCLDY 77 76 97 CALM 29.99S TC 25
SALEM* PTCLDY 77 76 95 CALM 29.99R TC 25
METROPOLIS* PTCLDY 78 77 96 CALM 29.99R HX 81 TC 26
ILZ067-068-072-073-078-083-087-091-220300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 80 75 84 NE7 30.00R HX 85 TC 27
FLORA* PTCLDY 81 75 83 CALM 30.00R HX 86 TC 27
FAIRFIELD* PTCLDY 78 75 91 CALM 29.98S HX 80 TC 25
HARRISBURG* PTCLDY 80 76 89 CALM 29.99R HX 85 TC 27
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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