Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 311310
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 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.
ILZ001-002-007-009-015-016-024-311400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 60 56 86 E7 30.25R TC 16
STERLING* SUNNY 58 57 97 E6 30.28R TC 14
$$
ILZ003-004-008-010-011-017-018-311400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 58 52 80 N3 30.30R TC 14
FREEPORT* SUNNY 57 54 88 CALM 30.31R TC 14
ROCHELLE* SUNNY 57 51 78 CALM 30.29R TC 14
DE KALB* SUNNY 58 53 84 NE6 30.29R TC 14
PERU* PTSUNNY 62 57 86 NE3 30.27R TC 17
$$
ILZ005-006-012>014-019>023-311400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 60 51 72 N3 30.26R TC 16
CHICAGO-MIDWAY MOSUNNY 65 53 65 CALM 30.27R TC 18
AURORA SUNNY 59 53 80 CALM 30.28R TC 15
JOLIET* SUNNY 61 59 91 CALM 30.27R TC 16
WAUKEGAN SUNNY 61 52 72 CALM 30.28R TC 16
DUPAGE AIRPORT SUNNY 58 52 80 N5 30.27R TC 14
KANKAKEE* SUNNY 59 55 88 CALM 30.28R TC 15
WHEELING SUNNY 60 53 77 N3 30.29R TC 16
MORRIS* SUNNY 57 57 100 CALM 30.26R TC 14
ROMEOVILLE* SUNNY 61 59 94 CALM 30.28R TC 16
LANSING* SUNNY 57 57 99 CALM 30.27R TC 14
NORTHERLY ISL* N/A 64 54 69 W5 N/A TC 18
$$
LMZ740>746-311400-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
S. MID LAKE BUOY 66 70 120/ 4/ 6 1025.2R
WILMETTE BUOY 66 1025.8
CHICAGO BUOY 67 1026.0
HARRISON CRIB 65 270/ 5/ 6 N/A
NORTHERLY ISL 63 240/ 5/ 5 N/A
CALUMET HARBOR 62 160/ 4/ 5 1023.7
BURNS HARBOR 62 190/ 4/ 5 1025.4R
MICHIGAN CITY 60 140/ 7/ 8 1024.0R
ST. JOSEPH BUOY 1012.7
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-311400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 65 59 81 SE6 30.22R TC 18
GALESBURG* PTSUNNY 60 56 87 CALM 30.26R TC 16
MACOMB* MOSUNNY 60 59 96 E3 30.26R TC 16
JACKSONVILLE* MOSUNNY 61 60 98 E6 30.23R TC 16
PITTSFIELD* PTSUNNY 65 61 85 CALM 30.24R TC 19
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-311400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC SUNNY 60 56 88 E5 30.27R TC 15
BLOOMINGTON MOSUNNY 57 55 93 E5 30.27R TC 14
DECATUR MOSUNNY 61 56 83 E7 30.25R TC 16
PEORIA PTSUNNY 63 57 81 E5 30.25R TC 17
LACON* SUNNY 59 55 89 CALM 30.26R TC 15
LINCOLN* MOSUNNY 59 59 100 NE3 30.25R TC 15
SPRINGFIELD MOSUNNY 61 56 83 E5 30.24R TC 16
TAYLORVILLE MOSUNNY 63 55 77 E3 30.24R TC 17
$$
ILZ033-039-045-046-055>057-062-063-311400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 60 53 77 E7 30.25R TC 16
DANVILLE* SUNNY 58 53 83 E3 30.27R TC 14
RANTOUL* PTSUNNY 60 52 73 E5 30.26R TC 16
MATTOON MOSUNNY 60 54 80 CALM 30.23R TC 16
PARIS* MOSUNNY 58 53 84 E3 30.25R TC 15
$$
ILZ079-100>102-311400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 63 59 88 CALM 30.22R TC 17
CAHOKIA* PTSUNNY 69 58 67 E3 30.20R TC 21
SPARTA* MOSUNNY 70 57 64 E5 30.21R TC 21
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-311400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 67 58 72 E5 30.19R TC 19
CAIRO* MOSUNNY 69 56 64 NE3 30.17S TC 20
EFFINGHAM* MOSUNNY 62 55 78 E6 30.25R TC 17
MARION PTSUNNY 66 57 72 E5 30.19R TC 19
MT. VERNON MOSUNNY 63 57 81 NE6 30.22R TC 17
CENTRALIA* MOSUNNY 62 58 87 E3 30.22R TC 17
SALEM* MOSUNNY 63 55 77 CALM 30.22R TC 17
METROPOLIS* PTSUNNY 64 53 65 CALM 30.18R TC 18
$$
ILZ067-068-072-073-078-083-087-091-311400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 61 53 75 NE7 30.22R TC 16
FLORA* MOSUNNY 61 55 82 NE5 30.23R TC 16
FAIRFIELD* PTSUNNY 60 55 84 NE3 30.21R TC 15
HARRISBURG* MOSUNNY 65 56 72 NE3 30.20R TC 18
ROBINSON* MOSUNNY 59 57 94 VRB2 30.22S TC 15
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$