Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 160306
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 PM CDT TUE SEP 15 2026
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.
ILZ001-002-007-009-015-016-024-160400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 68 62 81 NE5 30.15R TC 20
STERLING* MOCLDY 68 66 93 N3 30.16R TC 20
SAVANNA* PTCLDY 65 62 91 CALM 30.16S TC 18
$$
ILZ003-004-008-010-011-017-018-160400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 68 65 90 N5 30.17S TC 20
FREEPORT* PTCLDY 66 65 95 NW3 30.19R TC 19
ROCHELLE* MOCLDY 67 67 100 CALM 30.16S TC 19
DE KALB* MOCLDY 67 67 100 CALM 30.17S TC 19
PERU* PTCLDY 72 70 94 N5 30.15R TC 22
$$
ILZ005-006-012>014-019>023-160400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 72 69 90 N9 30.15R TC 22
CHICAGO-MIDWAY PTCLDY 76 70 82 N8 30.15R TC 24
AURORA PTCLDY 70 67 90 NE3 30.15R TC 21
JOLIET* PTCLDY 76 73 88 N6 30.16R TC 25
WAUKEGAN PTCLDY 69 68 96 CALM 30.15R TC 21
DUPAGE AIRPORT MOCLDY 70 67 90 N6 30.15R TC 21
KANKAKEE* MOCLDY 72 70 95 E3 30.15R TC 22
WHEELING PTCLDY 71 70 96 CALM 30.18R TC 22
ROMEOVILLE* PTCLDY 75 73 94 N10 30.16R TC 24
LANSING* CLOUDY 76 69 78 NE6 30.16R TC 25
NORTHERLY ISL* N/A 73 67 81 N7 N/A TC 23
$$
LMZ740>746-160400-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
WINTHROP HARBOR 63 57 CALM / 2 1014.0F 0
WAUKEGAN HARBOR 68 63 CALM / 2 1020.5R 0
WILMETTE BUOY 63 290/ 2/ 4 1022.9R 0
CHICAGO BUOY 69 66 1019.9R 0
NORTHERLY ISL 71 330/ 5/ 8 N/A
CALUMET HARBOR 72 20/ 2/ 4 1020.7
MICH CITY BUOY 70 65 130/ 4/ 4 N/A 0
ST. JOSEPH BUOY 70 65 CALM / 2 1021.8R 0
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-160400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 74 71 91 NE6 30.09R TC 23
GALESBURG* MOCLDY 70 68 95 N9 30.17R TC 21
MACOMB* RAIN 71 71 100 E7 30.14S TC 22
JACKSONVILLE* MOCLDY 74 74 100 CALM 30.10R TC 24
PITTSFIELD* MOCLDY 74 74 98 CALM 30.11R TC 24
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-160400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 73 73 100 W6 30.16R TC 23
BLOOMINGTON MOCLDY 74 73 97 E6 30.15R TC 23
DECATUR PTCLDY 74 69 85 CALM 30.11S TC 23
PEORIA LGT RAIN 73 68 84 VRB3 30.14R TC 23
LACON* HVY RAIN 73 70 88 CALM 30.14R TC 23
LINCOLN* CLOUDY 76 73 91 CALM 30.12R TC 24
SPRINGFIELD MOCLDY 75 74 96 NW8G18 30.12R TC 24
TAYLORVILLE NOT AVBL
$$
ILZ033-039-045-046-055>057-062-063-160400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 75 72 90 N8G18 30.14R TC 24
RANTOUL* LGT RAIN 75 72 91 NE5 30.15R TC 24
MATTOON PTCLDY 78 70 76 SE5 30.11F HX 80 TC 26
PARIS* PTCLDY 77 69 77 CALM 30.12F TC 25
$$
ILZ079-100>102-160400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* PTCLDY 80 72 76 S5 30.08R HX 84 TC 27
SPARTA* CLEAR 80 72 75 CALM 30.11S HX 83 TC 27
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-160400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLEAR 82 72 71 CALM 30.12R HX 87 TC 28
EFFINGHAM* PTCLDY 80 71 75 SE5 30.12S HX 83 TC 27
MARION CLEAR 82 70 65 CALM 30.12R HX 86 TC 28
MT. VERNON PTCLDY 74 72 93 CALM 30.12R TC 23
CENTRALIA* PTCLDY 83 70 65 S3 30.11S HX 86 TC 28
SALEM* PTCLDY 86 71 60 MISG 30.11S HX 91 TC 30
METROPOLIS* CLEAR 78 71 79 CALM 30.13R HX 80 TC 25
$$
ILZ067-068-072-073-078-083-087-091-160400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 79 73 82 S7 30.12R HX 82 TC 26
FLORA* PTCLDY 77 70 78 S3 30.12S TC 25
FAIRFIELD* PTCLDY 82 69 66 CALM 30.11F HX 85 TC 28
HARRISBURG* CLEAR 79 73 83 CALM 30.13R HX 82 TC 26
ROBINSON* PTCLDY 77 73 88 S6 30.11F TC 25
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$