Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 310910
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 AM CDT SUN AUG 31 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.
ILZ001-002-007-009-015-016-024-311000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 58 57 97 E5 30.19S TC 14
STERLING* PTCLDY 56 56 100 E3 30.22S TC 13
$$
ILZ003-004-008-010-011-017-018-311000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 55 52 89 CALM 30.25R TC 13
ROCHELLE* PTCLDY 55 50 83 CALM 30.23S TC 13
DE KALB* PTCLDY 55 51 87 CALM 30.24R TC 13
PERU* PTCLDY 56 54 94 NE3 30.21S TC 13
$$
ILZ005-006-012>014-019>023-311000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 56 49 77 N6 30.21S TC 13
CHICAGO-MIDWAY CLEAR 60 52 74 CALM 30.21F TC 16
AURORA PTCLDY 55 53 93 CALM 30.22S TC 13
JOLIET* CLEAR 56 55 95 CALM 30.22S TC 14
WAUKEGAN CLEAR 47 45 93 CALM 30.22S TC 8
DUPAGE AIRPORT CLEAR 55 50 83 N5 30.22S TC 13
KANKAKEE* PTCLDY 57 54 88 E5 30.22S TC 14
WHEELING CLEAR 53 50 89 CALM 30.24S TC 12
MORRIS* CLOUDY 58 55 91 CALM 30.21S TC 15
ROMEOVILLE* MOCLDY 59 57 94 CALM 30.22S TC 15
LANSING* CLEAR 54 53 96 CALM 30.22S TC 12
NORTHERLY ISL* N/A 64 56 75 NE6 N/A TC 18
$$
LMZ740>746-311000-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
S. MID LAKE BUOY 66 70 80/ 10/ 12 1023.4R 1/ 3
WINTHROP HARBOR 65 N/A
WAUKEGAN HARBOR 65 N/A
WILMETTE BUOY 65 N/A
HARRISON CRIB 67 90/ 6/ 7 N/A
NORTHERLY ISL 64 60/ 2/ 5 N/A
CALUMET HARBOR 62 200/ 2/ 3 1022.0F
BURNS HARBOR 61 80/ 4/ 5 1023.7S
MICHIGAN CITY 59 120/ 3/ 4 1022.4S
MICH CITY BUOY 65 N/A
ST. JOSEPH BUOY 65 N/A
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-311000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 64 60 87 E7 30.15R TC 18
GALESBURG* PTCLDY 60 56 86 E3 30.20S TC 16
MACOMB* PTCLDY 59 58 97 E3 30.20S TC 15
JACKSONVILLE* MOCLDY 59 59 99 E3 30.16S TC 15
PITTSFIELD* PTCLDY 63 62 96 CALM 30.16S TC 17
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-311000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 56 55 97 CALM 30.21S TC 13
BLOOMINGTON MOCLDY 57 56 96 NE6 30.21S TC 14
DECATUR PTCLDY 57 54 89 E6 30.19R TC 14
PEORIA CLEAR 62 56 80 E6 30.19S TC 17
LACON* PTCLDY 57 54 88 CALM 30.19F TC 14
LINCOLN* PTCLDY 58 58 100 E3 30.19R TC 15
SPRINGFIELD PTCLDY 61 57 87 NE3 30.17S TC 16
TAYLORVILLE MOCLDY 61 57 88 CALM 30.17R TC 16
$$
ILZ033-039-045-046-055>057-062-063-311000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 58 54 86 E6 30.19S TC 14
DANVILLE* CLEAR 54 51 92 N6 30.21R TC 12
RANTOUL* PTCLDY 59 52 78 NE6 30.20R TC 15
MATTOON PTCLDY 56 54 93 NE5 30.17R TC 13
PARIS* CLOUDY 55 54 95 NE3 30.19S TC 13
$$
ILZ079-100>102-311000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTCLDY 65 59 81 W5 30.15S TC 18
CAHOKIA* CLOUDY 67 60 78 SE3 30.13S TC 19
SPARTA* MOCLDY 66 60 81 E5 30.14S TC 19
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-311000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 64 59 83 NE5 30.12S TC 18
CAIRO* CLOUDY 70 58 66 E5 30.11S TC 21
EFFINGHAM* MOCLDY 61 57 88 CALM 30.18R TC 16
MARION MOCLDY 66 55 67 E3 30.13S TC 19
MT. VERNON MOCLDY 64 58 80 N3 30.14S TC 18
CENTRALIA* PTCLDY 62 57 84 E5 30.15S TC 17
SALEM* PTCLDY 65 57 75 CALM 30.15S TC 18
METROPOLIS* MOCLDY 66 54 64 CALM 30.12S TC 19
$$
ILZ067-068-072-073-078-083-087-091-311000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 59 54 83 NE7 30.15S TC 15
FLORA* PTCLDY 61 57 88 CALM 30.16R TC 16
FAIRFIELD* MOCLDY 61 56 82 CALM 30.14R TC 16
HARRISBURG* MOCLDY 64 57 76 CALM 30.13S TC 18
ROBINSON* PTCLDY 54 54 100 N3 30.15S TC 12
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$