Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 121407
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 AM CDT TUE AUG 12 2025
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.
* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
REPORT WEATHER SUCH AS PRECIPITATION OR FOG.
ILZ001-002-007-009-015-016-024-121500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 72 69 90 VRB3 29.97R TC 22
STERLING* PTSUNNY 71 71 100 CALM 29.98R TC 22
$$
ILZ003-004-008-010-011-017-018-121500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 71 68 90 SE5 29.97F TC 22
ROCHELLE* PTSUNNY 73 68 86 SE3 29.98R TC 23
DE KALB* MOSUNNY 72 68 85 SE5 29.99F TC 22
PERU* PTSUNNY 77 71 82 E3 29.98S TC 25
$$
ILZ005-006-012>014-019>023-121500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 74 67 78 W5 30.00R TC 23
CHICAGO-MIDWAY PTSUNNY 78 69 73 W3 29.99F HX 80 TC 26
AURORA MOSUNNY 74 68 81 E6 29.98F TC 23
JOLIET* CLOUDY 76 72 86 CALM 30.00S TC 25
WAUKEGAN LGT RAIN 73 68 84 SW5 29.98F TC 23
DUPAGE AIRPORT LGT RAIN 74 68 81 E3 29.98F TC 23
KANKAKEE* MOSUNNY 77 74 88 SW3 30.01F TC 25
WHEELING CLOUDY 74 68 81 NW3 30.00F TC 23
MORRIS* PTSUNNY 74 72 93 CALM 29.99S TC 23
ROMEOVILLE* CLOUDY 77 73 88 NW7 30.01S TC 25
LANSING* PTSUNNY 79 72 78 CALM 30.00F HX 82 TC 26
NORTHERLY ISL* N/A 75 68 78 NE6 N/A TC 24
$$
LMZ740>746-121500-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
S. MID LAKE BUOY 73 75 290/ 8/ 8 1015.1F 2/ 4
WINTHROP HARBOR 70 69 70/ 2/ 4 N/A 0
WAUKEGAN HARBOR 72 74 210/ 4/ 6 N/A 0
WILMETTE BUOY 73 10/ 4/ 6 1018.1S 1
HARRISON CRIB 86 10/ 5/ 5 N/A
NORTHERLY ISL 76 230/ 1/ 13 N/A
CALUMET HARBOR 77 290/ 5/ 8 1014.9
BURNS HARBOR 77 270/ 2/ 4 1016.6R
MICHIGAN CITY 79 250/ 11/ 13 1014.3R
MICH CITY BUOY 78 77 250/ 10/ 14 1014.5R 1/ 2
ST. JOSEPH BUOY 78 76 220/ 12/ 17 1016.9R 1/ 2
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-121500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 76 69 79 SW3 29.98R TC 24
GALESBURG* PTSUNNY 72 71 97 CALM 29.99S TC 22
MACOMB* PTSUNNY 74 70 86 CALM 29.99F TC 24
JACKSONVILLE* SUNNY 77 73 88 S7 29.97F TC 25
PITTSFIELD* MOSUNNY 77 75 93 S3 29.99F TC 25
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-121500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOSUNNY 78 72 84 CALM 29.99S TC 25
BLOOMINGTON MOSUNNY 80 73 79 S10 30.00F HX 84 TC 27
DECATUR SUNNY 83 72 69 SW12 30.00F HX 88 TC 28
PEORIA MOSUNNY 77 73 87 S5 29.97F TC 25
LACON* MOSUNNY 76 70 83 SE3 29.97S TC 24
LINCOLN* MOSUNNY 82 72 72 S5 29.98F HX 86 TC 28
SPRINGFIELD SUNNY 81 70 69 SW8 29.98S HX 84 TC 27
TAYLORVILLE SUNNY 81 73 78 S7 30.00S HX 85 TC 27
$$
ILZ033-039-045-046-055>057-062-063-121500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 81 73 76 S10 30.01F HX 86 TC 27
DANVILLE* SUNNY 82 72 72 S6 30.02S HX 87 TC 28
RANTOUL* SUNNY 80 72 77 S3 30.01S HX 83 TC 27
MATTOON MOSUNNY 75 71 87 S8 30.02R TC 24
PARIS* CLOUDY 80 72 75 W13 30.03S HX 84 TC 27
$$
ILZ079-100>102-121500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 81 72 74 VRB7 29.99S HX 84 TC 27
BELLEVILLE SUNNY 80 73 79 S6 29.97F HX 84 TC 27
CAHOKIA* SUNNY 81 73 76 S3 29.98S HX 86 TC 27
SPARTA* MOSUNNY 83 72 69 S7 30.01F HX 88 TC 28
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-121500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 82 73 74 SW6 30.01S HX 87 TC 28
CAIRO* CLOUDY 81 76 86 CALM 30.01S HX 87 TC 27
EFFINGHAM* CLOUDY 74 73 96 CALM 30.02F TC 24
MT. VERNON PTSUNNY 81 74 79 S5 30.01F HX 86 TC 27
CENTRALIA* MOSUNNY 80 73 79 CALM 30.01F HX 84 TC 27
SALEM* CLOUDY 80 72 77 CALM 30.01F HX 84 TC 27
METROPOLIS* CLOUDY 78 77 96 CALM 30.02F HX 81 TC 26
$$
ILZ067-068-072-073-078-083-087-091-121500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 77 73 87 W5 30.01S TC 25
FLORA* MOSUNNY 77 73 88 CALM 30.01F TC 25
FAIRFIELD* CLOUDY 78 73 84 CALM 30.02R TC 25
HARRISBURG* SUNNY 80 74 80 CALM 30.02S HX 85 TC 27
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$