Regional Weather Roundup
Issued by NWS
Issued by NWS
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055
ASUS43 KLOT 210806
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 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.
ILZ001-002-007-009-015-016-024-210900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 62 60 93 CALM 30.10S TC 17
$$
ILZ003-004-008-010-011-017-018-210900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 62 60 93 N3 30.13S TC 17
ROCHELLE* CLEAR 61 59 94 N6 30.12S TC 16
DE KALB* CLEAR 61 61 100 N5 30.12S TC 16
PERU* CLOUDY 64 63 97 N3 30.09F TC 18
$$
ILZ005-006-012>014-019>023-210900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 66 63 90 N6 30.07S TC 19
CHICAGO-MIDWAY PTCLDY 69 63 81 NW7 30.07S TC 21
AURORA CLEAR 64 61 90 N5 30.09S TC 18
JOLIET* CLEAR 65 64 96 N3 30.08S TC 19
WAUKEGAN MOCLDY 67 63 87 NW5 30.08F TC 19
DUPAGE AIRPORT CLEAR 64 61 90 N6 30.09S TC 18
KANKAKEE* CLOUDY 66 64 94 N3 30.08S TC 19
WHEELING PTCLDY 67 64 90 N6 30.09S TC 19
MORRIS* CLEAR 63 63 100 CALM 30.07S TC 17
ROMEOVILLE* CLEAR 66 66 100 N7 30.09S TC 19
LANSING* CLEAR 62 62 99 CALM 30.08R TC 17
NORTHERLY ISL* N/A 70 65 84 N6 N/A TC 21
$$
LMZ740>746-210900-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
S. MID LAKE BUOY 72 74 100/ 14/ 16 1018.6R
WINTHROP HARBOR 72 72 320/ 10/ 16 N/A 4/ 6
WAUKEGAN HARBOR 72 72 320/ 10/ 14 N/A 4/ 6
WILMETTE BUOY 72 70/ 8/ 14 1020.5R 4/ 6
NORTHERLY ISL 69 350/ 6/ 7 N/A
CALUMET HARBOR 71 360/ 4/ 8 1017.1
BURNS HARBOR 70 60/ 4/ 5 1019.0S
MICHIGAN CITY 67 50/ 5/ 6 1017.0S
MICH CITY BUOY 72 74 40/ 10/ 14 1016.9F 5/ 6
ST. JOSEPH BUOY 65 66 10/ 8/ 10 1019.3R 3/ 6
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-210900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOCLDY 68 65 90 E9 30.07R TC 20
GALESBURG* CLEAR 59 59 100 N3 30.11S TC 15
MACOMB* CLEAR 62 62 100 CALM 30.10F TC 16
JACKSONVILLE* CLEAR 63 63 99 NE3 30.06S TC 17
PITTSFIELD* CLEAR 66 66 97 NE6 30.07S TC 19
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-210900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 64 63 97 N7 30.08S TC 18
BLOOMINGTON CLOUDY 64 62 93 N7 30.09S TC 18
DECATUR CLEAR 63 61 93 N7 30.05S TC 17
PEORIA PTCLDY 63 61 93 CALM 30.08S TC 17
LACON* MOCLDY 61 59 92 CALM 30.08S TC 16
LINCOLN* MOCLDY 62 62 100 N3 30.07S TC 17
SPRINGFIELD CLEAR 62 60 93 NE5 30.06S TC 17
TAYLORVILLE NOT AVBL
$$
ILZ033-039-045-046-055>057-062-063-210900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 64 61 90 NE7 30.05F TC 18
DANVILLE* CLOUDY 65 63 95 N5 30.05S TC 18
RANTOUL* CLEAR 63 61 93 NE6 30.06S TC 17
MATTOON CLEAR 60 59 96 N5 30.03S TC 16
PARIS* CLEAR 62 61 97 CALM 30.04S TC 17
$$
ILZ079-100>102-210900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 68 64 86 CALM 30.03F TC 20
BELLEVILLE CLOUDY 71 65 82 NE6 30.00S TC 21
CAHOKIA* CLOUDY 71 64 78 NE6 30.02S TC 22
SPARTA* CLEAR 69 67 93 NE6 30.02F TC 21
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 68 66 93 NE3 29.99S TC 20
CAIRO* CLEAR 70 68 93 CALM 29.98S TC 21
EFFINGHAM* CLEAR 63 63 99 NW5 30.04S TC 17
MARION CLEAR 66 65 96 N5 30.00S TC 19
MT. VERNON CLEAR 67 66 97 N6 30.01S TC 19
CENTRALIA* CLEAR 67 65 92 NE3 30.02S TC 20
SALEM* CLEAR 66 63 90 N5 30.01F TC 19
METROPOLIS* CLEAR 69 68 96 N3 29.98S TC 21
$$
ILZ067-068-072-073-078-083-087-091-210900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 69 65 86 NE9 29.99F TC 21
FLORA* CLEAR 64 N/A N/A N7 30.01F TC 18
FAIRFIELD* PTCLDY 67 65 93 N5 30.00S TC 19
HARRISBURG* CLEAR 67 66 94 N6 29.99S TC 20
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$