841
ASUS43 KLOT 210810
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 AM 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.
ILZ001-002-007-009-015-016-024-210900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 70 62 76 E13 30.01R TC 21
ILZ003-004-008-010-011-017-018-210900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 63 56 78 NE3 30.07R TC 17
ROCHELLE* PTCLDY 61 58 91 NE5 30.06R TC 16
DE KALB* MOCLDY 61 60 97 NE5 30.06R TC 16
PERU* CLOUDY 65 64 96 NE5 30.04R TC 18
ILZ005-006-012>014-019>023-210900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 63 60 90 N6 30.03S TC 17
CHICAGO-MIDWAY PTCLDY 69 62 78 N5 30.03R TC 21
AURORA PTCLDY 64 60 87 NE3 30.04R FOG TC 18
JOLIET* MOCLDY 66 64 92 CALM 30.03R TC 19
WAUKEGAN CLEAR 66 61 84 NE5 30.05R TC 19
DUPAGE AIRPORT PTCLDY 63 59 87 N3 30.04R TC 17
KANKAKEE* CLOUDY 66 64 96 CALM 30.02F TC 19
WHEELING CLEAR 63 61 93 N3 30.05S TC 17
MORRIS* MOCLDY 62 62 100 CALM 30.03R TC 17
ROMEOVILLE* PTCLDY 66 64 94 NE8 30.03S TC 19
LANSING* MOCLDY 64 64 100 CALM 30.03S TC 18
NORTHERLY ISL* N/A 68 65 90 NE5 N/A TC 20
LMZ740>746-210900-
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 70 69 60/ 12/ 14 1017.8R 2/ 4
WINTHROP HARBOR 70 68 350/ 10/ 14 N/A 2/ 4
WAUKEGAN HARBOR 70 69 50/ 10/ 14 N/A 2/ 4
WILMETTE BUOY 71 90/ 10/ 14 1018.9R 2/ 5
CHICAGO BUOY 72 71 60/ 4/ 6 1017.1 2/ 5
HARRISON CRIB 77 50/ 8/ 9 N/A
NORTHERLY ISL 68 20/ 5/ 6 N/A
CALUMET HARBOR 72 30/ 5/ 7 1015.7R
BURNS HARBOR 69 70/ 3/ 4 1017.3S
MICHIGAN CITY 67 60/ 2/ 3 1015.4F
MICH CITY BUOY 71 75 80/ 6/ 8 1015.5F 2/ 5
ST. JOSEPH BUOY 70 75 40/ 10/ 14 1017.7F 2/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-210900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 73 72 96 S3 29.97R TC 23
GALESBURG* CLOUDY 72 71 96 E7 30.01R TC 22
MACOMB* CLOUDY 74 73 99 E6 30.00S FOG TC 23
JACKSONVILLE* MOCLDY 73 73 98 SE9 29.95F TC 23
PITTSFIELD* PTCLDY 73 73 99 SW3 29.97F TC 23
ILZ028>032-037-038-041>044-048-051>054-059>061-210900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 68 67 95 NE5 30.01S TC 20
BLOOMINGTON CLOUDY 69 69 100 NE9 30.02R FOG TC 21
DECATUR MOCLDY 75 73 93 NE3 29.98F TC 24
PEORIA CLOUDY 73 71 93 E10 29.99S FOG TC 23
LACON* CLOUDY 68 62 82 E6 30.01R TC 20
LINCOLN* CLOUDY 74 74 100 CALM 29.98S TC 23
SPRINGFIELD LGT RAIN 75 74 96 SW5 29.98R TC 24
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-210900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
RANTOUL* CLOUDY 71 71 99 NE7 29.99F FOG TC 22
MATTOON MOCLDY 73 72 96 S6 29.96F TC 23
ILZ079-100>102-210900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON TSTM 73 72 96 CALM 30.00F TC 23
BELLEVILLE TSTM 73 73 100 CALM 29.97 TC 23
CAHOKIA* RAIN 72 71 97 SW5 30.01R FOG TC 22
SPARTA* LGT RAIN 75 74 96 E10 29.98F TC 24
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 78 74 87 NE8G18 29.98S HX 81 TC 26
CAIRO* CLEAR 78 77 98 CALM 29.98F HX 80 TC 25
EFFINGHAM* RAIN 72 72 99 S7 29.98F TC 22
MARION MOCLDY 76 74 92 NE8G17 30.00R TC 25
MT. VERNON CLOUDY 73 72 96 S3 29.98F TC 23
CENTRALIA* LGT RAIN 73 72 98 S3 29.98F TC 23
SALEM* CLOUDY 72 71 97 CALM 29.96F TC 22
METROPOLIS* CLEAR 78 77 96 CALM 29.98F HX 80 TC 26
ILZ067-068-072-073-078-083-087-091-210900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE RAIN 73 32 22 S6 N/A TC 23
FLORA* LGT RAIN 73 N/A N/A SW5 29.97F TC 23
FAIRFIELD* LGT RAIN 73 72 98 NW6 29.99F TC 23
HARRISBURG* MOCLDY 76 73 89 N9G22 30.01R TC 25
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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