Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 231610
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM CDT SAT AUG 23 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.
ILZ001-002-007-009-015-016-024-231700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 77 64 64 NW13G20 29.99S TC 25
$$
ILZ003-004-008-010-011-017-018-231700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 77 63 61 W9 29.96S TC 25
ROCHELLE* SUNNY 77 64 64 NW13 29.96S TC 25
DE KALB* MOSUNNY 77 68 72 W9G18 29.96S TC 25
PERU* PTSUNNY 78 71 81 W9 29.97S TC 25
$$
ILZ005-006-012>014-019>023-231700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 79 63 57 W9G18 29.91F HX 80 TC 26
CHICAGO-MIDWAY MOSUNNY 80 66 62 W10 29.92S HX 82 TC 27
AURORA SUNNY 79 68 69 W10 29.94S HX 81 TC 26
JOLIET* MOSUNNY 79 71 74 W6 29.95S HX 82 TC 26
WAUKEGAN SUNNY 81 65 58 W12G24 29.90S HX 83 TC 27
DUPAGE AIRPORT SUNNY 80 67 64 W12 29.93F HX 82 TC 27
KANKAKEE* MOSUNNY 73 70 88 W10 29.97S TC 23
WHEELING SUNNY 81 64 56 NW10G20 29.92F HX 82 TC 27
MORRIS* PTSUNNY 77 70 79 W8 29.94F TC 25
ROMEOVILLE* MOSUNNY 77 72 83 W12 29.95F TC 25
LANSING* MOSUNNY 76 68 78 W12 29.94F TC 24
NORTHERLY ISL* N/A 78 63 59 W8 N/A HX 80 TC 26
$$
LMZ740>746-231700-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
S. MID LAKE BUOY 73 74 270/ 14/ 16 1012.1R 3/ 4
WINTHROP HARBOR 76 73 230/ 10/ 16 N/A 1/ 3
WAUKEGAN HARBOR 77 73 N/A 1
WILMETTE BUOY 76 290/ 8/ 10 1015.4F 1
HARRISON CRIB 77 260/ 8/ 9 N/A
NORTHERLY ISL 77 250/ 7/ 13 N/A
CALUMET HARBOR 78 230/ 5/ 10 1012.3
BURNS HARBOR 74 240/ 5/ 7 1014.2S
MICHIGAN CITY 72 230/ 13/ 14 1012.0F
MICH CITY BUOY 72 74 230/ 12/ 14 1012.1F 2/ 4
ST. JOSEPH BUOY 72 72 220/ 16/ 19 1013.9S 3/ 4
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-231700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 74 66 76 W7 30.04S TC 23
GALESBURG* MOSUNNY 78 68 71 NW9 30.02S HX 80 TC 26
MACOMB* MOSUNNY 78 71 79 NW8 30.04S TC 25
JACKSONVILLE* PTSUNNY 74 66 75 SW6 30.03S TC 23
PITTSFIELD* PTSUNNY 76 67 73 W6 30.06S TC 24
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-231700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOSUNNY 75 70 84 W8 29.97F TC 24
BLOOMINGTON PTSUNNY 75 69 81 W10 30.01S TC 24
DECATUR PTSUNNY 78 67 68 W12 30.01F HX 80 TC 26
PEORIA MOSUNNY 77 67 71 W9 29.99S TC 25
LACON* MOSUNNY 77 69 75 W7 29.97F TC 25
LINCOLN* PTSUNNY 77 68 72 W7 30.01S TC 25
SPRINGFIELD PTSUNNY 76 67 73 W7 30.02S TC 24
TAYLORVILLE PTSUNNY 77 70 78 W8 30.03S TC 25
$$
ILZ033-039-045-046-055>057-062-063-231700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 75 66 73 W8 30.01S TC 24
DANVILLE* CLOUDY 74 65 75 W9 30.00F TC 23
RANTOUL* CLOUDY 77 65 68 W7 30.00S HAZE TC 25
MATTOON PTSUNNY 77 65 66 VRB5 30.01F TC 25
PARIS* CLOUDY 76 66 71 W8 30.02S TC 24
$$
ILZ079-100>102-231700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTSUNNY 79 66 65 W8 30.05R HX 81 TC 26
BELLEVILLE PTSUNNY 82 66 58 VRB6 30.02S HX 84 TC 28
CAHOKIA* PTSUNNY 81 67 62 W6 30.03F HX 83 TC 27
SPARTA* SUNNY 82 61 47 W8 30.05F HX 83 TC 28
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-231700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 80 64 58 CALM 30.04S HX 82 TC 27
CAIRO* MOSUNNY 82 68 62 NW6 30.04F HX 85 TC 28
EFFINGHAM* PTSUNNY 80 66 62 SW8 30.04F HX 81 TC 26
MARION MOSUNNY 79 64 61 N6 30.04F HX 81 TC 26
MT. VERNON MOSUNNY 80 64 58 CALM 30.04F HX 82 TC 27
CENTRALIA* MOSUNNY 81 64 55 CALM 30.04F HX 82 TC 27
SALEM* MOSUNNY 81 63 55 CALM 30.03F HX 82 TC 27
METROPOLIS* MOSUNNY 79 63 58 CALM 30.04S HX 81 TC 26
$$
ILZ067-068-072-073-078-083-087-091-231700-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 79 64 60 W7 30.02F HX 81 TC 26
FLORA* MOSUNNY 79 66 65 W5 30.03F HX 81 TC 26
FAIRFIELD* SUNNY 78 64 63 NW3 30.03F TC 25
HARRISBURG* MOSUNNY 80 64 57 NW5 30.04S HX 81 TC 27
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$