850
ASUS43 KLOT 220007
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 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.
ILZ001-002-007-009-015-016-024-220100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 79 74 84 E12 29.96F HX 82 TC 26
6HR MIN TEMP: 77; 6HR MAX TEMP: 80;
ILZ003-004-008-010-011-017-018-220100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 81 65 58 E3 30.03S HX 83 TC 27
6HR MIN TEMP: 78; 6HR MAX TEMP: 82;
ROCHELLE* CLOUDY 77 69 75 S3 30.03R TC 25
DE KALB* PTSUNNY 77 64 63 E8 30.04R TC 25
PERU* CLOUDY 80 72 77 E8 30.01R HX 83 TC 27
ILZ005-006-012>014-019>023-220100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 79 62 56 E12 30.03F HX 80 TC 26
6HR MIN TEMP: 78; 6HR MAX TEMP: 82;
CHICAGO-MIDWAY PTSUNNY 78 60 53 E10 30.03S TC 26
6HR MIN TEMP: 78; 6HR MAX TEMP: 83;
AURORA CLOUDY 80 62 54 E8 30.01F HAZE HX 81
6HR MIN TEMP: 80; 6HR MAX TEMP: 86;
JOLIET* PTSUNNY 81 66 60 E9 30.02R HX 83 TC 27
WAUKEGAN SUNNY 71 59 65 NE6 30.05S TC 22
6HR MIN TEMP: 71; 6HR MAX TEMP: 77;
DUPAGE AIRPORT MOSUNNY 78 62 57 E10 30.02S HX 80 TC 26
6HR MIN TEMP: 78; 6HR MAX TEMP: 84;
KANKAKEE* PTSUNNY 79 71 74 CALM 30.03R HX 82 TC 26
WHEELING MOSUNNY 74 62 66 NE7 30.05F TC 23
6HR MIN TEMP: 74; 6HR MAX TEMP: 80;
MORRIS* PTSUNNY 79 70 74 SE5 30.01R HX 82 TC 26
ROMEOVILLE* SUNNY 81 66 61 E12 30.03S HX 83 TC 27
LANSING* PTSUNNY 75 66 72 NE8 30.04S TC 24
NORTHERLY ISL* N/A 71 64 78 NE8 N/A TC 22
LMZ740>746-220100-
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 68 70 20/ 10/ 12 1017.5F
WINTHROP HARBOR 69 69 340/ 8/ 10 N/A 2/ 4
WAUKEGAN HARBOR 69 70 360/ 10/ 12 N/A 2/ 3
WILMETTE BUOY 71 60/ 10/ 14 1019.5F 2/ 4
CHICAGO BUOY 73 73 20/ 8/ 12 1017.6F 2/ 4
HARRISON CRIB 77 30/ 13/ 13 N/A
NORTHERLY ISL 71 30/ 8/ 10 N/A
CALUMET HARBOR 73 20/ 7/ 12 1016.4R
BURNS HARBOR 75 50/ 8/ 9 1017.6S
MICHIGAN CITY 74 30/ 15/ 16 1015.6S
MICH CITY BUOY 74 75 30/ 12/ 14 1015.8R 2/ 4
ST. JOSEPH BUOY 73 75 350/ 14/ 17 1018.1S 2/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-220100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 82 75 79 SE5 29.96R HX 89 TC 28
GALESBURG* PTSUNNY 78 72 81 E5 29.99S HX 81 TC 26
MACOMB* CLOUDY 79 75 87 E7 29.99F HX 84 TC 26
JACKSONVILLE* PTSUNNY 82 73 73 E3 29.96S HX 87 TC 28
PITTSFIELD* MOSUNNY 82 76 80 SE3 29.97S HX 89 TC 28
ILZ028>032-037-038-041>044-048-051>054-059>061-220100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 79 73 80 E5 30.01R HX 82 TC 26
BLOOMINGTON PTSUNNY 78 75 90 E7 30.02S HX 81 TC 26
DECATUR PTSUNNY 82 77 84 NE8 29.99S HX 90 TC 28
PEORIA PTSUNNY 82 74 76 E6 29.99S HX 88 TC 28
6HR MIN TEMP: 80; 6HR MAX TEMP: 82;
LACON* PTSUNNY 80 71 75 E6 29.99S HX 83 TC 27
LINCOLN* PTSUNNY 81 76 84 E6 29.99R HX 87 TC 27
SPRINGFIELD PTSUNNY N/A N/A N/A E7 29.97S
6HR PCP: TRACE;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-220100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
RANTOUL* PTSUNNY 79 73 80 E6 30.01S HX 82 TC 26
MATTOON PTSUNNY 81 74 79 NE7 29.98S HX 86 TC 27
ILZ079-100>102-220100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 84 75 74 SE6 29.97F HX 92 TC 29
BELLEVILLE MOSUNNY 85 76 73 SE3 29.94S HX 94 TC 29
CAHOKIA* MOSUNNY 84 74 71 SE5 29.95F HX 91 TC 29
SPARTA* MOSUNNY 86 77 73 E5 29.98R HX 97 TC 30
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-220100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 85 77 77 CALM 29.96S HX 95 TC 29
6HR MIN TEMP: 83; 6HR MAX TEMP: 87;
CAIRO* MOSUNNY 83 76 78 CALM 29.96R HX 91 TC 29
EFFINGHAM* PTSUNNY 83 76 79 W3 29.99R HX 91 TC 28
MARION MOSUNNY 84 77 79 NE6 29.97R HX 94 TC 29
MT. VERNON MOSUNNY 85 75 72 CALM 29.97S HX 93 TC 29
CENTRALIA* MOSUNNY 84 73 69 CALM 29.98S HX 91 TC 29
SALEM* MOSUNNY 85 74 68 CALM 29.98S HX 93 TC 30
METROPOLIS* PTSUNNY 80 78 94 CALM 29.97R HX 86 TC 27
ILZ067-068-072-073-078-083-087-091-220100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 86 72 62 NW5 29.97R HX 92 TC 30
FLORA* MOSUNNY 84 73 70 SW3 29.97S HX 91 TC 29
FAIRFIELD* MOSUNNY 83 75 76 CALM 29.97R HX 91 TC 29
HARRISBURG* PTSUNNY 85 75 72 CALM 29.97R HX 94 TC 30
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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