152
ASUS43 KLOT 190009
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 PM CDT MON AUG 18 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.
ILZ001-002-007-009-015-016-024-190100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 73 72 96 S5 29.95F TC 23
6HR MIN TEMP: 73; 6HR MAX TEMP: 92; 6HR PCP: TRACE;
ILZ003-004-008-010-011-017-018-190100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD TSTM 72 69 90 W9G35 30.01R FOG TC 22
6HR MIN TEMP: 72; 6HR MAX TEMP: 87; 6HR PCP: 0.13;
ROCHELLE* HVY RAIN 73 71 91 S17G23 29.97R TC 23
DE KALB* MOCLDY 73 73 100 SW12G18 29.99R TC 23
PERU* MOCLDY 87 78 76 S8 29.96R HX 100 TC 31
ILZ005-006-012>014-019>023-190100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE TSTM 72 71 97 SW3 29.96F TC 22
6HR MIN TEMP: 71; 6HR MAX TEMP: 87; 6HR PCP: 0.52;
CHICAGO-MIDWAY TSTM 74 70 87 S9 29.97F TC 23
6HR MIN TEMP: 73; 6HR MAX TEMP: 88; 6HR PCP: 0.25;
AURORA LGT RAIN 74 72 93 S6 29.96F TC 23
6HR MIN TEMP: 72; 6HR MAX TEMP: 90; 6HR PCP: 0.88;
JOLIET* CLOUDY 74 73 96 CALM 29.99F TC 24
WAUKEGAN MOCLDY 75 71 87 NW9 29.98R TC 24
6HR MIN TEMP: 75; 6HR MAX TEMP: 82; 6HR PCP: 0.05;
DUPAGE AIRPORT LGT RAIN 73 71 93 SE7 29.95F TC 23
6HR MIN TEMP: 71; 6HR MAX TEMP: 88; 6HR PCP: 0.64;
KANKAKEE* PTCLDY 82 81 94 SE6 30.00S HX 95 TC 28
WHEELING MOCLDY 73 71 93 S8 29.97F THUNDER TC 23
6HR MIN TEMP: 72; 6HR MAX TEMP: 88; 6HR PCP: 0.10;
MORRIS* CLOUDY 76 71 86 NE3 29.97S TC 24
ROMEOVILLE* TSTM 75 75 100 S8G17 29.98F TC 24
LANSING* MOCLDY 82 76 82 S7 29.99F HX 89 TC 28
NORTHERLY ISL* N/A 74 69 85 SW7 N/A TC 23
LMZ740>746-190100-
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 76 76 140/ 14/ 16 1014.7F 3/ 5
WINTHROP HARBOR 76 74 270/ 12/ 19 N/A 3/ 5
WAUKEGAN HARBOR 75 76 N/A 2/ 5
WILMETTE BUOY 73 1017.0F 2/ 4
NORTHERLY ISL 73 260/ 6/ 11 N/A
CALUMET HARBOR 75 300/ 14/ 19 1015.6
BURNS HARBOR 83 180/ 4/ 6 1015.9S
MICHIGAN CITY 83 150/ 8/ 10 1013.6S
MICH CITY BUOY 80 77 140/ 6/ 8 1013.8F 1/ 2
ST. JOSEPH BUOY 77 75 90/ 12/ 14 1016.8F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-190100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 89 77 67 SW6 29.95S HX 101 TC 32
GALESBURG* PTCLDY 76 70 79 E3 29.98S TC 25
MACOMB* CLEAR 86 78 77 S3 29.97R HX 99 TC 30
JACKSONVILLE* CLEAR 89 75 64 S3 29.96S HX 99 TC 32
PITTSFIELD* PTCLDY 88 75 65 S8 29.97S HX 97 TC 31
ILZ028>032-037-038-041>044-048-051>054-059>061-190100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 87 76 70 S9 29.98R HX 96 TC 30
BLOOMINGTON CLEAR 86 78 77 S10 30.00R HX 98 TC 30
DECATUR CLEAR 90 77 65 S7 30.00R HX 103 TC 32
PEORIA CLEAR 89 76 65 S9 29.96R HX 100 TC 32
6HR MIN TEMP: 89; 6HR MAX TEMP: 94;
LACON* MOCLDY 85 75 71 S5 29.95R HX 94 TC 30
LINCOLN* CLEAR 89 76 65 S7 29.98R HX 99 TC 31
SPRINGFIELD CLEAR 87 77 72 S6 29.97R HX 99 TC 31
6HR MIN TEMP: 87; 6HR MAX TEMP: 93;
TAYLORVILLE CLEAR 88 77 70 S5 29.99R HX 100 TC 31
ILZ033-039-045-046-055>057-062-063-190100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 86 77 74 S7 30.00R HX 97 TC 30
DANVILLE* PTCLDY 83 76 79 SE6 30.02S HX 90 TC 28
RANTOUL* CLEAR 86 77 76 S6 30.01R HX 97 TC 30
MATTOON CLEAR 86 75 69 SE7 30.00R HX 95 TC 30
PARIS* CLEAR 84 77 78 S3 30.02R HX 94 TC 29
ILZ079-100>102-190100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 90 79 70 SE5 29.96S HX 105 TC 32
BELLEVILLE CLEAR 92 76 58 S7 29.93S HX 105 TC 34
CAHOKIA* PTCLDY 90 76 63 SE6 29.94F HX 101 TC 32
SPARTA* CLEAR 93 71 47 SE7 29.98S HX 100 TC 34
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-190100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 90 75 61 S5 29.97F HX 100 TC 32
6HR MIN TEMP: 90; 6HR MAX TEMP: 96;
CAIRO* CLEAR 91 76 60 CALM 29.99R HX 103 TC 33
EFFINGHAM* CLEAR 88 76 68 E5 30.01R HX 99 TC 31
MARION CLEAR 93 72 49 S7 29.98S HX 100 TC 34
MT. VERNON CLEAR 92 74 55 SE5 29.98F HX 101 TC 33
CENTRALIA* CLEAR 91 74 57 SE3 29.97S HX 100 TC 33
SALEM* CLEAR 91 73 54 SE5 29.98S HX 99 TC 33
METROPOLIS* CLEAR 92 71 48 CALM 29.98S HX 98 TC 34
ILZ067-068-072-073-078-083-087-091-190100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 86 79 79 SE5 29.99F HX 99 TC 30
FLORA* CLEAR 86 77 74 SE6 29.99S HX 97 TC 30
FAIRFIELD* CLEAR 88 73 61 SE5 29.98F HX 95 TC 31
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page