733
ASUS43 KLOT 182107
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 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.
ILZ001-002-007-009-015-016-024-182200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 91 78 65 S8 29.92F HX 106 TC 33
ILZ003-004-008-010-011-017-018-182200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 79 72 79 VRB7 29.97F THUNDER HX 82
ROCHELLE* HVY RAIN 74 71 92 N9G21 29.96S VSB 3/4 TC 23
DE KALB* PTSUNNY 85 77 78 S12 30.00R THUNDER HX 95
PERU* PTSUNNY 90 80 73 S16 29.95F HX 108 TC 32
ILZ005-006-012>014-019>023-182200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 86 76 71 S10 29.98F HX 96 TC 30
CHICAGO-MIDWAY PTSUNNY 86 74 67 S12G25 29.98F HX 94 TC 30
AURORA PTSUNNY 88 78 72 S14 29.96F THUNDER HX 101
JOLIET* PTSUNNY 87 81 81 SE10 29.97F HX 104 TC 31
WAUKEGAN LGT RAIN 77 72 84 SE10 29.97F TC 25
DUPAGE AIRPORT MOSUNNY 88 77 69 SE13 29.96F HX 100 TC 31
KANKAKEE* PTSUNNY 82 77 83 SE12 30.02F HX 91 TC 28
WHEELING CLOUDY 87 76 69 S12 29.98F HX 97 TC 31
MORRIS* MOSUNNY 88 79 75 S13 29.96F HX 102 TC 31
ROMEOVILLE* MOSUNNY 86 82 89 SE14 29.99F HX 105 TC 30
LANSING* CLOUDY 84 75 74 S13 30.01F HX 92 TC 29
NORTHERLY ISL* N/A 80 73 79 SE10 N/A HX 84 TC 27
LMZ740>746-182200-
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 1016.2F
WINTHROP HARBOR 75 74 200/ 10/ 14 N/A 4/ 5
WAUKEGAN HARBOR 76 76 N/A 3/ 4
WILMETTE BUOY 76 150/ 16/ 19 1018.0F 3/ 4
NORTHERLY ISL 78 90/ 5/ 13 N/A
CALUMET HARBOR 83 160/ 8/ 15 1015.1F
BURNS HARBOR 83 170/ 5/ 10 1016.9F
MICHIGAN CITY 77 140/ 13/ 15 1015.0F
MICH CITY BUOY 76 76 130/ 12/ 14 1015.0F 1
ST. JOSEPH BUOY 76 75 100/ 16/ 21 1017.9F 1/ 2
ILZ025>027-034>036-040-047-049-050-058-095>099-182200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 92 77 61 S9 29.97F HX 105 TC 33
GALESBURG* SUNNY 91 76 60 S9 29.97F HX 103 TC 33
MACOMB* SUNNY 92 75 56 S8 29.99F HX 102 TC 33
JACKSONVILLE* SUNNY 91 74 55 SW8 29.98S HX 100 TC 33
PITTSFIELD* SUNNY 93 78 61 S8 30.00S HX 108 TC 34
ILZ028>032-037-038-041>044-048-051>054-059>061-182200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOSUNNY 89 77 67 S12 29.99F HX 101 TC 32
BLOOMINGTON SUNNY 91 78 65 S15 30.01F HX 106 TC 33
DECATUR SUNNY 92 76 59 S12 30.01F HX 104 TC 33
PEORIA MOSUNNY 94 76 55 S13 29.96F HX 106 TC 34
LACON* SUNNY 89 79 73 S7 29.95F HX 104 TC 32
LINCOLN* SUNNY 92 77 60 S12 29.99F HX 106 TC 34
SPRINGFIELD SUNNY 92 73 53 SW9G18 29.99F HX 100 TC 33
TAYLORVILLE SUNNY 91 75 59 S12 30.00F HX 102 TC 33
ILZ033-039-045-046-055>057-062-063-182200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 90 78 68 S8 30.02F HX 104 TC 32
DANVILLE* PTSUNNY 85 78 80 SE7 30.05F HX 96 TC 29
RANTOUL* PTSUNNY 91 75 60 S10 30.02F HX 102 TC 33
MATTOON N/A 91 73 55 S6 30.03S HX 99 TC 33
PARIS* MOSUNNY 87 76 68 SE3 30.05S HX 98 TC 31
ILZ079-100>102-182200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 93 75 55 S9 30.00F HX 104 TC 34
BELLEVILLE SUNNY 97 73 45 S6 29.97F HX 106 TC 36
CAHOKIA* SUNNY 97 74 47 S6 29.98F HX 108 TC 36
SPARTA* SUNNY 98 69 38 SE7 30.01F HX 104 TC 37
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-182200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 95 70 44 S3 30.00F HX 101 TC 35
CAIRO* SUNNY 95 74 49 CALM 30.01F HX 105 TC 35
EFFINGHAM* SUNNY 92 76 60 SE5 30.05S HX 104 TC 33
MARION SUNNY 95 72 46 S6 30.01F HX 103 TC 35
MT. VERNON SUNNY 97 74 47 SE6 30.02F HX 108 TC 36
SALEM* SUNNY 96 71 44 S6 30.02S HX 103 TC 35
METROPOLIS* SUNNY 95 70 44 CALM 30.02F HX 101 TC 35
ILZ067-068-072-073-078-083-087-091-182200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 89 76 65 SE3 30.03F HX 100 TC 32
FLORA* SUNNY 91 75 59 SE6 30.03F HX 102 TC 33
FAIRFIELD* SUNNY 92 71 49 CALM 30.02F HX 99 TC 34
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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