663
ASUS43 KLOT 210511
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 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.
ILZ001-002-007-009-015-016-024-210600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 72 69 90 E10 29.99R TC 22
ILZ003-004-008-010-011-017-018-210600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 67 56 67 E5 30.05R TC 19
ROCHELLE* CLEAR 63 60 88 NE5 30.04R TC 17
DE KALB* CLEAR 62 58 86 NE6 30.04S FOG TC 17
PERU* CLEAR 68 64 85 NE8 30.01R TC 20
ILZ005-006-012>014-019>023-210600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 67 60 78 NE8 30.01F TC 19
CHICAGO-MIDWAY CLEAR 71 59 65 NE6 30.01S TC 22
AURORA CLEAR 66 60 81 NE5 30.02S TC 19
JOLIET* CLEAR 67 64 87 NE3 30.01S TC 20
WAUKEGAN CLEAR 63 59 87 N5 30.03S TC 17
DUPAGE AIRPORT CLEAR 66 61 84 NE6 30.02S TC 19
KANKAKEE* MOCLDY 66 65 95 NE3 30.02S TC 19
WHEELING CLEAR 65 61 87 NW5 30.04S TC 18
MORRIS* CLEAR 65 62 90 CALM 30.01R TC 19
ROMEOVILLE* CLEAR 66 64 94 NE6 30.03R TC 19
LANSING* CLEAR 68 64 86 NE5 30.02S TC 20
NORTHERLY ISL* N/A 68 62 81 NE7 N/A TC 20
LMZ740>746-210600-
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 40/ 14/ 16 1016.6F 2/ 5
WINTHROP HARBOR 70 69 320/ 10/ 12 N/A 2/ 4
WAUKEGAN HARBOR 70 69 350/ 10/ 14 N/A 2/ 4
WILMETTE BUOY 71 70/ 12/ 16 1018.2F 3/ 4
CHICAGO BUOY 71 71 30/ 6/ 10 1016.8 2/ 5
HARRISON CRIB 76 50/ 12/ 14 N/A
NORTHERLY ISL 68 10/ 9/ 11 N/A
CALUMET HARBOR 70 10/ 7/ 9 1015.4
BURNS HARBOR 72 60/ 8/ 9 1016.6F
MICHIGAN CITY 71 70/ 7/ 8 1014.6F
MICH CITY BUOY 73 75 40/ 12/ 16 1014.8F 3/ 5
ST. JOSEPH BUOY 71 76 30/ 12/ 14 1017.2F 2/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-210600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 77 76 96 E9 29.95R TC 25
GALESBURG* CLOUDY 73 72 99 E7 30.00R TC 23
MACOMB* LGT RAIN 74 74 98 E6 29.98S TC 24
JACKSONVILLE* CLOUDY 76 75 98 SE9 29.97R TC 25
PITTSFIELD* CLOUDY 74 74 98 S9 29.99R TC 24
ILZ028>032-037-038-041>044-048-051>054-059>061-210600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 69 66 92 E9 30.01S TC 20
BLOOMINGTON MOCLDY 72 72 100 E8 30.00S FOG TC 22
DECATUR MOCLDY 76 74 93 S8 29.99R TC 24
PEORIA CLOUDY 75 72 90 E8 29.98R TC 24
LACON* CLOUDY 70 67 90 E6 29.98S TC 21
LINCOLN* PTCLDY 75 75 100 E5 29.97S TC 24
SPRINGFIELD CLOUDY 76 73 91 SE8 29.97R TC 24
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-210600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
RANTOUL* CLOUDY 73 72 99 E6 29.99F TC 23
MATTOON MOCLDY 73 72 96 E3 29.97F TC 23
ILZ079-100>102-210600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 77 74 91 W15 29.96R TC 25
BELLEVILLE PTCLDY 81 77 88 SE6 29.93R HX 88 TC 27
CAHOKIA* PTCLDY 81 75 82 CALM 29.94R HX 87 TC 27
SPARTA* PTCLDY 83 80 89 S5 29.96S HX 95 TC 28
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLEAR 82 78 89 S5 29.97R HX 91 TC 28
EFFINGHAM* CLOUDY 73 73 100 E5 29.98F TC 23
MARION CLEAR 79 76 89 S5 29.97S HX 84 TC 26
MT. VERNON MOCLDY 76 71 85 E7 29.99S TC 24
CENTRALIA* MOCLDY 76 71 84 SE9 29.97F TC 24
SALEM* MOCLDY 76 71 83 CALM 29.98S TC 25
METROPOLIS* CLEAR 81 76 84 CALM 29.97F HX 86 TC 27
ILZ067-068-072-073-078-083-087-091-210600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE LGT RAIN 74 32 21 CALM N/A TC 23
FLORA* MOCLDY 73 N/A N/A E3 29.98F TC 23
FAIRFIELD* PTCLDY 73 72 94 SE3 29.98F TC 23
HARRISBURG* DRIZZLE 79 72 79 NE6 29.99S HX 81 TC 26
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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