Regional Weather Roundup
Issued by NWS
Issued by NWS
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890
ASUS43 KLOT 211306
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 AM CDT THU AUG 21 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.
ILZ001-002-007-009-015-016-024-211400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 66 62 87 NE5 30.13R TC 19
$$
ILZ003-004-008-010-011-017-018-211400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 65 63 93 N6 30.14F FOG TC 18
ROCHELLE* FOG 63 62 94 NE7 30.14R VSB 3/4 TC 17
PERU* SUNNY 64 64 97 N6 30.12R TC 18
$$
ILZ005-006-012>014-019>023-211400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 70 64 81 NE8 30.10R TC 21
CHICAGO-MIDWAY MOSUNNY 72 64 76 NE6 30.09S TC 22
AURORA SUNNY 68 64 87 NE6 30.11R TC 20
JOLIET* SUNNY 70 67 92 NE5 30.10S TC 21
WAUKEGAN PTSUNNY 72 63 73 E9 30.11S TC 22
DUPAGE AIRPORT PTSUNNY 68 65 90 N6 30.11R TC 20
WHEELING PTSUNNY 69 65 86 CALM 30.12S TC 21
MORRIS* SUNNY 65 65 100 CALM 30.09S TC 19
ROMEOVILLE* MOSUNNY 68 68 100 N6 30.11R TC 20
LANSING* SUNNY 66 66 100 CALM 30.11R TC 19
NORTHERLY ISL* N/A 70 62 76 NE10 N/A TC 21
$$
LMZ740>746-211400-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
S. MID LAKE BUOY 69 74 70/ 10/ 14 1019.8R 2/ 6
WINTHROP HARBOR 71 72 360/ 8/ 12 N/A 2/ 6
WAUKEGAN HARBOR 71 73 N/A 2/ 6
WILMETTE BUOY 71 110/ 10/ 16 1021.6S 3/ 5
NORTHERLY ISL 70 50/ 9/ 10 N/A
CALUMET HARBOR 70 30/ 8/ 13 1018.1
BURNS HARBOR 67 70/ 5/ 7 1019.6R
MICHIGAN CITY 63 70/ 9/ 9 1018.1R
MICH CITY BUOY 67 74 60/ 8/ 12 1017.9R 3/ 6
ST. JOSEPH BUOY 61 68 50/ 8/ 12 1020.1R 2/ 6
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-211400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 64 62 93 NE9 30.11R TC 18
GALESBURG* CLOUDY 63 63 100 N6 30.14R TC 17
MACOMB* CLOUDY 64 63 96 N3 30.14R TC 18
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-211400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC SUNNY 66 65 97 NE9 30.11R TC 19
BLOOMINGTON MOSUNNY 67 65 93 N12 30.11R TC 19
DECATUR SUNNY 69 64 84 N7 30.07R TC 21
PEORIA CLOUDY 67 63 87 N6 30.11R TC 19
LACON* MOSUNNY 67 63 87 CALM 30.11R TC 19
LINCOLN* CLOUDY 66 66 100 N5 30.09R TC 19
SPRINGFIELD CLOUDY 66 62 87 NE8 30.08S TC 19
TAYLORVILLE NOT AVBL
$$
ILZ033-039-045-046-055>057-062-063-211400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 69 63 81 NE7 30.07R TC 21
DANVILLE* MOSUNNY 68 64 88 NE6 30.07S TC 20
RANTOUL* SUNNY 67 63 86 N9 30.08R TC 20
MATTOON SUNNY 65 63 93 N7 30.05R TC 18
PARIS* CLOUDY 67 65 93 N5 30.06R TC 19
$$
ILZ079-100>102-211400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 64 63 94 N6 30.07R TC 18
BELLEVILLE SUNNY 68 64 86 N7 30.04R TC 20
CAHOKIA* SUNNY 68 63 84 N7 30.06R TC 20
SPARTA* MOSUNNY 68 66 92 CALM 30.06R TC 20
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-211400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 69 65 86 N6 30.03R TC 21
CAIRO* MOSUNNY 72 69 92 NE7 30.01R TC 22
EFFINGHAM* CLOUDY 65 64 97 N3 30.07R TC 18
MT. VERNON PTSUNNY 67 64 90 NE7 30.04R TC 19
CENTRALIA* SUNNY 66 63 88 CALM 30.05R TC 19
SALEM* PTSUNNY 66 63 90 N5 30.05R TC 19
METROPOLIS* CLOUDY 68 67 96 N6 30.01R TC 20
$$
ILZ067-068-072-073-078-083-087-091-211400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 68 65 90 NE8 30.03R TC 20
FLORA* SUNNY 66 64 94 N7 30.05R TC 19
FAIRFIELD* SUNNY 66 63 91 N7 30.03R TC 19
HARRISBURG* PTSUNNY 68 66 92 N6 30.03R TC 20
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$