926
ASUS43 KLOT 210301
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 PM CDT SUN JUL 20 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.
ILZ001-002-007-009-015-016-024-210400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 74 70 87 E10 29.99R TC 23
ILZ003-004-008-010-011-017-018-210400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 68 57 68 E5 30.05R TC 20
ROCHELLE* PTCLDY 66 58 75 E5 30.04S TC 19
PERU* CLOUDY 72 69 92 E5 30.02S TC 22
ILZ005-006-012>014-019>023-210400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 68 62 81 NE8 30.03R TC 20
CHICAGO-MIDWAY PTCLDY 71 61 70 NE9 30.04R TC 22
AURORA MOCLDY 68 60 75 E7 30.03R TC 20
JOLIET* PTCLDY 71 62 75 NE6 30.03R TC 22
WAUKEGAN CLEAR 65 60 84 NE3 30.05R TC 18
DUPAGE AIRPORT CLEAR 68 60 75 NE7 30.04R TC 20
KANKAKEE* PTCLDY 69 67 95 NE5 30.04S TC 20
WHEELING CLEAR 67 63 87 N6 30.06R TC 19
MORRIS* PTCLDY 69 66 89 E3 30.02R TC 21
ROMEOVILLE* PTCLDY 70 63 78 NE9G17 30.04S TC 21
LANSING* PTCLDY 69 65 87 NE5 30.04R TC 20
NORTHERLY ISL* N/A 68 61 78 N9 N/A TC 20
LMZ740>746-210400-
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 69 10/ 14/ 16 1016.9R
WINTHROP HARBOR 69 68 320/ 8/ 12 N/A 3/ 4
WAUKEGAN HARBOR 70 69 340/ 10/ 14 N/A 2/ 4
WILMETTE BUOY 70 60/ 12/ 14 1019.2R 3/ 5
CHICAGO BUOY 71 71 10/ 10/ 14 1017.7R 2/ 5
HARRISON CRIB 76 20/ 17/ 18 N/A
NORTHERLY ISL 68 10/ 8/ 13 N/A
CALUMET HARBOR 70 360/ 6/ 10 1016.0R
BURNS HARBOR 72 30/ 6/ 8 1017.3R
MICHIGAN CITY 72 30/ 14/ 15 1015.2R
MICH CITY BUOY 72 75 30/ 12/ 14 1015.3R 4/ 5
ST. JOSEPH BUOY 72 75 350/ 14/ 17 1017.6R 3/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-210400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY HVY RAIN 77 77 100 NE5 29.93F FOG TC 25
GALESBURG* CLOUDY 74 71 88 E7 29.99S TC 24
MACOMB* CLOUDY 77 76 97 NE10 29.97F TC 25
PITTSFIELD* CLOUDY 78 77 98 S6 29.96R THUNDER HX 80
ILZ028>032-037-038-041>044-048-051>054-059>061-210400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 72 71 97 NE6 30.01F FOG TC 22
BLOOMINGTON CLOUDY 74 74 100 NE10 30.00F TC 23
DECATUR MOCLDY 76 74 93 SE5 29.98S TC 24
PEORIA MOCLDY 76 73 91 E12 29.98S TC 24
LACON* CLOUDY 73 69 89 E5 29.99F TC 23
LINCOLN* PTCLDY 76 76 100 NE3 29.96F TC 25
SPRINGFIELD MOCLDY 78 75 90 E6 29.95F HX 81 TC 26
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-210400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
RANTOUL* CLOUDY 74 73 96 NE7 30.00R TC 24
MATTOON CLEAR 74 73 97 SE3 29.98S TC 23
ILZ079-100>102-210400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 84 79 84 NE7 29.93S THUNDER HX 96
BELLEVILLE PTCLDY 82 76 83 S3 29.91S HX 89 TC 28
CAHOKIA* MOCLDY 83 76 79 S3 29.91F HX 91 TC 28
SPARTA* CLEAR 86 77 76 S5 29.95F HX 97 TC 30
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 81 77 88 S6 29.95S HX 88 TC 27
CAIRO* CLEAR 83 78 85 CALM 29.98R HX 94 TC 29
EFFINGHAM* CLOUDY 72 72 100 CALM 30.03R TC 22
MARION CLEAR 80 76 86 S3 29.97S HX 86 TC 27
MT. VERNON PTCLDY 80 72 76 NE14G20 29.99R HX 84 TC 27
CENTRALIA* MOCLDY 78 71 79 E10 29.98R TC 25
SALEM* PTCLDY 76 70 81 NE5 29.98F TC 25
METROPOLIS* CLEAR 82 74 77 CALM 29.99R HX 88 TC 28
ILZ067-068-072-073-078-083-087-091-210400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE TSTM 74 32 21 S13 N/A TC 23
FLORA* PTCLDY 73 73 100 NE9 30.00S TC 23
FAIRFIELD* CLOUDY 76 70 81 N13 30.00R TC 25
HARRISBURG* CLEAR 79 75 87 CALM 29.98R HX 84 TC 26
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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