Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 311606
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 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.
ILZ001-002-007-009-015-016-024-311700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 72 60 66 NE8 30.26S TC 22
STERLING* SUNNY 72 55 55 E6 30.29F TC 22
$$
ILZ003-004-008-010-011-017-018-311700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 68 51 54 VRB3 30.32S TC 20
ROCHELLE* SUNNY 69 50 51 NE5 30.31S TC 20
DE KALB* MOSUNNY 67 55 64 CALM 30.31F TC 20
PERU* PTSUNNY 72 56 57 E3 30.29S TC 22
$$
ILZ005-006-012>014-019>023-311700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 72 52 49 E6 30.29R TC 22
CHICAGO-MIDWAY MOSUNNY 73 52 47 VRB5 30.29R TC 23
AURORA SUNNY 70 57 63 CALM 30.30R TC 21
JOLIET* SUNNY 73 57 57 CALM 30.29S TC 23
WAUKEGAN MOSUNNY 72 54 53 E5 30.30R TC 22
DUPAGE AIRPORT PTSUNNY 72 53 51 VRB3 30.29S TC 22
KANKAKEE* PTSUNNY 70 52 52 CALM 30.30S TC 21
WHEELING MOSUNNY 71 53 52 CALM 30.31R TC 22
MORRIS* MOSUNNY 69 58 68 CALM 30.29S TC 21
ROMEOVILLE* SUNNY 70 57 64 VRB3 30.30S TC 21
LANSING* SUNNY 71 56 59 CALM 30.30R TC 22
NORTHERLY ISL* N/A 69 55 60 NE6 N/A TC 21
$$
LMZ740>746-311700-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
S. MID LAKE BUOY 67 71 70/ 4/ 6 1026.1R 1/ 3
HARRISON CRIB 71 120/ 1/ 2 N/A
NORTHERLY ISL 69 70/ 5 N/A
CALUMET HARBOR 68 60/ 5/ 7 1024.7R
BURNS HARBOR 66 360/ 2/ 3 1026.4R
MICHIGAN CITY 67 280/ 4/ 5 1024.9R
ST. JOSEPH BUOY 67 1013.9
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-311700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 75 59 57 SE10 30.23S TC 24
GALESBURG* MOSUNNY 72 59 62 E5 30.28S TC 22
MACOMB* CLOUDY 73 60 62 CALM 30.28S TC 23
JACKSONVILLE* PTSUNNY 74 57 55 E8 30.24S TC 23
PITTSFIELD* MOSUNNY 76 60 55 SE6 30.25S TC 25
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-311700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 72 54 53 CALM 30.29S TC 22
BLOOMINGTON MOSUNNY 72 53 51 SE6 30.29S TC 22
DECATUR MOSUNNY 75 54 47 E10 30.27S TC 24
PEORIA MOSUNNY 73 53 49 SE8 30.27S TC 23
LACON* PTSUNNY 71 54 55 SE3 30.28S TC 22
LINCOLN* MOSUNNY 74 56 52 SE6 30.27S TC 23
SPRINGFIELD MOSUNNY 73 53 49 E9 30.25S TC 23
TAYLORVILLE NOT AVBL
$$
ILZ033-039-045-046-055>057-062-063-311700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 73 52 47 E8 30.28R TC 23
DANVILLE* SUNNY 73 51 46 E5 30.29S TC 23
RANTOUL* SUNNY 72 50 45 E6 30.28S TC 22
MATTOON MOSUNNY 73 50 44 E7 30.25S TC 23
PARIS* SUNNY 73 48 41 E8 30.27S TC 23
$$
ILZ079-100>102-311700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 72 57 60 SE7 30.23S TC 22
CAHOKIA* MOSUNNY 79 57 46 VRB5 30.21S HX 80 TC 26
SPARTA* MOSUNNY 78 53 41 E9 30.23S TC 25
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-311700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 78 52 40 NE9 30.20S TC 26
CAIRO* PTSUNNY 76 55 47 NE8 30.19S TC 25
EFFINGHAM* MOSUNNY 73 53 50 NE6 30.26F TC 23
MARION PTSUNNY 75 54 46 E6 30.20F TC 24
MT. VERNON MOSUNNY 77 53 43 NE10 30.23S TC 25
CENTRALIA* MOSUNNY 77 51 40 SE6 30.23S TC 25
SALEM* MOSUNNY 74 54 49 E3 30.23F TC 23
METROPOLIS* MOSUNNY 75 51 42 CALM 30.19F TC 24
$$
ILZ067-068-072-073-078-083-087-091-311700-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 74 52 46 NE7 30.23F TC 23
FLORA* MOSUNNY 72 55 56 E6 30.24F TC 22
FAIRFIELD* MOSUNNY 70 56 62 NE3 30.23S TC 21
HARRISBURG* MOSUNNY 77 52 41 NE9 30.21S TC 25
ROBINSON* MOSUNNY 72 55 56 NE7 30.23F TC 22
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$