299
ASUS43 KLOT 201510
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 AM CDT MON APR 20 2026
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR S TO VISIBILITY.
* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
REPORT WEATHER SUCH AS PRECIPITATION OR FOG.
ILZ001-002-007-009-015-016-024-201600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 48 22 35 S6 30.33F TC 9
STERLING* SUNNY 48 25 40 SE8 30.36S TC 9
SAVANNA* SUNNY 48 17 28 S6 30.35S TC 9
ILZ003-004-008-010-011-017-018-201600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 46 18 32 SE8 30.37S TC 8
FREEPORT* MOSUNNY 46 23 40 SE8 30.36S TC 8
ROCHELLE* MOSUNNY 46 19 34 S9 30.35F TC 8
DE KALB* MOSUNNY 45 22 41 S5 30.36S TC 7
ILZ005-006-012>014-019>023-201600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 44 25 47 S8 30.35F TC 7
CHICAGO-MIDWAY PTSUNNY 46 22 38 CALM 30.36F TC 8
AURORA SUNNY 49 19 30 S5 30.35S TC 9
JOLIET* SUNNY 49 24 38 S3 30.37R TC 10
WAUKEGAN SUNNY 41 30 65 S10G17 30.36S TC 5
DUPAGE AIRPORT SUNNY 45 23 42 S5 30.35S TC 7
KANKAKEE* MOSUNNY 47 24 41 SE7 30.38R TC 8
WHEELING MOSUNNY 44 22 41 S5 30.37S TC 7
MORRIS* MOSUNNY 47 25 42 SE6 30.36R TC 8
ROMEOVILLE* SUNNY 46 23 39 SE6 30.37S TC 8
LANSING* SUNNY 46 24 42 E3 30.37F TC 8
NORTHERLY ISL* N/A 43 33 68 E6 N/A TC 6
LMZ740>746-201600-
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 44 1027.8 2/ 3
WAUKEGAN HARBOR 40 45 1027.1 1/ 2
HARRISON CRIB 41 130/ 8/ 10 N/A
NORTHERLY ISL 43 70/ 6/ 8 N/A
CALUMET HARBOR 42 90/ 7/ 12 1027.8
BURNS HARBOR 42 350/ 2/ 2 1028.8F
MICHIGAN CITY 42 10/ 6/ 6 1028.5F
ST. JOSEPH BUOY 41 140/ 4/ 6 1029.3R 1/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-201600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 51 28 41 SE8G18 30.33S TC 11
GALESBURG* SUNNY 48 30 48 SE7 30.35F TC 9
MACOMB* SUNNY 49 27 41 S9 30.37S TC 9
JACKSONVILLE* SUNNY 50 24 35 SE7 30.35S TC 10
PITTSFIELD* SUNNY 51 28 41 SE6 30.35F TC 10
ILZ028>032-037-038-041>044-048-051>054-059>061-201600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOSUNNY 48 29 48 MISG 30.36F TC 9
BLOOMINGTON SUNNY 48 28 46 E5 30.36S TC 9
DECATUR SUNNY 49 22 34 SE7 30.36S TC 9
PEORIA SUNNY 49 23 36 CALM 30.35F TC 9
LACON* SUNNY 48 23 38 SE6 30.36S TC 9
LINCOLN* SUNNY 49 27 41 SE3 30.36F TC 10
SPRINGFIELD SUNNY 51 22 31 E9 30.36S TC 11
TAYLORVILLE SUNNY 50 27 40 SE5 30.36F TC 10
ILZ033-039-045-046-055>057-062-063-201600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 47 31 53 SE6 30.36R TC 8
DANVILLE* MOSUNNY 48 29 47 SE7 30.38R TC 9
RANTOUL* MOSUNNY 47 28 46 SE8 30.36S TC 8
PARIS* SUNNY 49 33 52 MISG 30.37S TC 10
ILZ079-100>102-201600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 52 30 43 E9 30.36S TC 11
BELLEVILLE SUNNY 53 34 47 SE7 30.34S TC 12
CAHOKIA* SUNNY 54 29 38 E7 30.35S TC 12
SPARTA* SUNNY 53 31 42 E6 30.36S TC 12
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 55 33 43 E8 30.34S TC 13
CAIRO* SUNNY 57 38 47 E10 30.34R TC 14
EFFINGHAM* SUNNY 51 28 39 CALM 30.38R TC 11
MARION SUNNY 55 30 38 E7 30.34S TC 13
MT. VERNON SUNNY 53 31 42 NE6 30.36R TC 12
CENTRALIA* SUNNY 54 30 40 CALM 30.36R TC 12
SALEM* SUNNY 53 29 41 E3 30.35S TC 12
METROPOLIS* SUNNY 57 33 40 MISG 30.34S TC 14
ILZ067-068-072-073-078-083-087-091-201600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 52 26 36 VRB3 30.36R TC 11
FLORA* SUNNY 52 30 43 E5 30.37R TC 11
FAIRFIELD* SUNNY 53 31 42 E7 30.36S TC 12
HARRISBURG* SUNNY 55 33 42 E5 30.35S TC 13
ROBINSON* SUNNY 52 27 37 E9 30.36R TC 11
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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