624
ASUS43 KLOT 182008
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 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.
ILZ001-002-007-009-015-016-024-182100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 91 77 63 VRB7 29.95F HX 104 TC 33
ILZ003-004-008-010-011-017-018-182100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 83 73 72 VRB6G17 30.00F THUNDER HX 89
ROCHELLE* CLOUDY 87 76 70 S8 29.99F HX 96 TC 30
DE KALB* PTSUNNY 87 79 78 S14 30.01F HX 100 TC 30
PERU* MOSUNNY 89 80 74 S13 29.99F HX 107 TC 32
ILZ005-006-012>014-019>023-182100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 84 74 71 S15G22 30.00F HX 91 TC 29
CHICAGO-MIDWAY PTSUNNY 86 74 67 S12G22 30.01F HX 94 TC 30
AURORA PTSUNNY 89 79 72 S14 30.00F HX 104 TC 32
JOLIET* MOSUNNY 87 81 80 S8 30.01F HX 104 TC 31
WAUKEGAN MOSUNNY 82 72 71 SE15 30.01F HX 87 TC 28
DUPAGE AIRPORT MOSUNNY 87 77 72 S15 30.00F HX 99 TC 31
KANKAKEE* CLOUDY 84 79 84 SE13 30.05F HX 96 TC 29
WHEELING PTSUNNY 85 74 69 SE13 30.01F HX 92 TC 29
MORRIS* PTSUNNY 88 79 76 S10 30.00F HX 103 TC 31
ROMEOVILLE* PTSUNNY 84 81 89 SE13 30.02F HX 98 TC 29
LANSING* CLOUDY 83 75 76 S12 30.04F HX 90 TC 28
NORTHERLY ISL* N/A 79 73 82 SE8 N/A HX 82 TC 26
LMZ740>746-182100-
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 74 76 150/ 16/ 19 1017.3F 4/ 5
WINTHROP HARBOR 75 75 150/ 14/ 17 N/A 3/ 5
WAUKEGAN HARBOR 75 76 N/A 3/ 5
WILMETTE BUOY 75 150/ 16/ 19 1018.9F 3/ 4
NORTHERLY ISL 78 120/ 12/ 13 N/A
CALUMET HARBOR 82 140/ 8/ 10 1016.3F
BURNS HARBOR 79 150/ 7/ 10 1017.9F
MICHIGAN CITY 75 150/ 14/ 17 1016.1F
MICH CITY BUOY 75 76 140/ 12/ 14 1016.2F 1/ 3
ST. JOSEPH BUOY 74 75 110/ 14/ 17 1019.2F 1/ 2
ILZ025>027-034>036-040-047-049-050-058-095>099-182100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 91 78 65 S10 29.98F HX 106 TC 33
GALESBURG* SUNNY 91 76 60 S10G16 29.99R HX 102 TC 33
MACOMB* SUNNY 93 77 59 S9 30.00S HX 106 TC 34
JACKSONVILLE* SUNNY 91 76 60 S12G20 29.99F HX 103 TC 33
PITTSFIELD* SUNNY 92 78 62 S9 30.00F HX 107 TC 34
ILZ028>032-037-038-041>044-048-051>054-059>061-182100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOSUNNY 88 76 68 S10 30.01F HX 99 TC 31
BLOOMINGTON MOSUNNY 91 78 65 S16 30.03F HX 106 TC 33
DECATUR SUNNY 93 76 57 S10 30.03F HX 105 TC 34
PEORIA MOSUNNY 94 76 55 S15G23 29.98F HX 106 TC 34
LACON* MOSUNNY 90 77 64 S9 29.98S HX 102 TC 32
LINCOLN* SUNNY 92 76 60 S10G16 30.00F HX 104 TC 33
SPRINGFIELD MOSUNNY 92 74 55 S13 30.00F HX 101 TC 33
TAYLORVILLE SUNNY 91 75 59 S12 30.02F HX 102 TC 33
ILZ033-039-045-046-055>057-062-063-182100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 91 77 63 S10 30.04F HX 104 TC 33
DANVILLE* CLOUDY 87 78 74 E7 30.06F HX 99 TC 30
RANTOUL* PTSUNNY 91 76 61 S7 30.04F HX 102 TC 33
MATTOON N/A 91 73 55 S8 30.03 HX 99 TC 33
PARIS* MOSUNNY 89 76 64 S7 30.05F HX 100 TC 32
ILZ079-100>102-182100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 93 75 55 S8 30.01F HX 104 TC 34
BELLEVILLE SUNNY 97 73 45 S7 29.98F HX 106 TC 36
CAHOKIA* SUNNY 97 73 45 VRB6 29.99F HX 107 TC 36
SPARTA* SUNNY 98 67 36 S7 30.03F HX 102 TC 37
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-182100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 94 72 48 S6 30.01F HX 102 TC 34
CAIRO* SUNNY 96 71 44 CALM 30.03F HX 103 TC 35
EFFINGHAM* SUNNY 92 75 57 SE6 30.05F HX 103 TC 33
MARION SUNNY 95 72 46 S3 30.03F HX 103 TC 35
MT. VERNON SUNNY 97 73 45 SE7 30.03F HX 107 TC 36
SALEM* SUNNY 94 70 45 CALM 30.02F HX 101 TC 35
METROPOLIS* SUNNY 96 69 42 CALM 30.04F HX 101 TC 35
ILZ067-068-072-073-078-083-087-091-182100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 90 75 61 VRB3 30.05F HX 100 TC 32
FLORA* SUNNY 91 73 55 S7 30.04F HX 100 TC 33
FAIRFIELD* SUNNY 92 71 50 S3 30.03F HX 98 TC 33
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