880  
ASUS43 KLOT 022012  
RWRIL  
 
ILLINOIS REGIONAL WEATHER ROUNDUP  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
300 PM CDT SAT MAY 02 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.
 
 
ILZ001-002-007-009-015-016-024-022100-  
NORTHWEST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
MOLINE SUNNY 59 27 29 SW10 30.08F TC 15  
STERLING* MOSUNNY 56 27 32 W5 30.08F TC 13  
SAVANNA* PTSUNNY 58 26 29 W10 30.07F TC 15  

 
 
ILZ003-004-008-010-011-017-018-022100-  
NORTH CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
ROCKFORD PTSUNNY 55 25 31 NW12 30.07F TC 13  
FREEPORT* CLOUDY 57 27 32 NW5 30.08S TC 14  
ROCHELLE* CLOUDY 55 25 31 NW6 30.07F TC 13  
DE KALB* PTSUNNY 53 29 40 W9G20 30.07F TC 12  
PERU* MOSUNNY 55 23 28 W5G16 30.08F TC 13  

 
 
ILZ005-006-012>014-019>023-022100-  
NORTHEAST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CHICAGO-OHARE PTSUNNY 54 26 34 NW9 30.05F TC 12  
CHICAGO-MIDWAY PTSUNNY 54 25 32 NW3 30.06F TC 12  
AURORA PTSUNNY 57 28 33 NW3G16 30.06F TC 14  
JOLIET* PTSUNNY 55 30 37 N8 30.09S TC 13  
WAUKEGAN PTSUNNY 48 32 53 SE13 30.04F TC 9  
DUPAGE AIRPORT PTSUNNY 54 26 34 VRB5 30.05F TC 12  
KANKAKEE* MOSUNNY 53 26 34 N10G18 30.09F TC 12  
WHEELING CLOUDY 54 25 32 NW10 30.05F TC 12  
MORRIS* PTSUNNY 54 27 35 CALM 30.07F TC 12  
ROMEOVILLE* PTSUNNY 54 27 35 NW9G17 30.08F TC 12  
LANSING* MOSUNNY 53 26 35 CALM 30.08S TC 12  
NORTHERLY ISL* N/A 48 30 50 E9 N/A TC 9  

 
 
LMZ740>746-022100-  
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 48 1020.0 1/ 2  
WAUKEGAN HARBOR 45 49 100/ 12/ 16 1017.5 2/ 3  
HARRISON CRIB 46 130/ 12/ 13 N/A  
NORTHERLY ISL 50 110/ 7/ 9 N/A  
CALUMET HARBOR 47 70/ 10/ 12 1018.4  
BURNS HARBOR 48 60/ 4/ 5 1019.6F  
MICHIGAN CITY 44 40/ 4/ 4 1018.9F  
ST. JOSEPH BUOY 44 260/ 2/ 4 1019.6F 1  

 
 
ILZ025>027-034>036-040-047-049-050-058-095>099-022100-  
WEST-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
QUINCY PTSUNNY 57 32 38 MISG 30.11F TC 14  
GALESBURG* CLOUDY 58 26 28 NW7 30.10F TC 15  
MACOMB* MOSUNNY 56 27 32 W5 30.13S TC 13  
JACKSONVILLE* PTSUNNY 57 35 42 NW7 30.11S TC 14  
PITTSFIELD* PTSUNNY 59 33 37 N8 30.12F TC 15  

 
 
ILZ028>032-037-038-041>044-048-051>054-059>061-022100-  
CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
PONTIAC PTSUNNY 54 22 28 MISG 30.09F TC 12  
BLOOMINGTON CLOUDY 55 26 32 VRB6 30.10F TC 13  
DECATUR CLOUDY 55 27 34 N10 30.10S TC 13  
PEORIA PTSUNNY 56 24 29 NW7 30.10F TC 13  
LACON* MOSUNNY 56 21 26 CALM 30.08F TC 13  
LINCOLN* CLOUDY 57 26 30 NE5 30.10F TC 14  
SPRINGFIELD PTSUNNY 56 28 34 W3 30.11S TC 13  
TAYLORVILLE PTSUNNY 55 30 38 N5 30.10F TC 13  

 
 
ILZ033-039-045-046-055>057-062-063-022100-  
EAST-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CHAMPAIGN PTSUNNY 54 26 34 NW13 30.09F TC 12  
DANVILLE* CLOUDY 54 25 32 N8 30.10F TC 12  
RANTOUL* CLOUDY 53 24 32 NW7 30.09F TC 12  
MATTOON PTSUNNY 56 28 34 N15G21 30.09S TC 13  
PARIS* CLOUDY 54 27 34 N9G17 30.09F TC 12  

 
 
ILZ079-100>102-022100-  
SOUTHWEST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
ALTON PTSUNNY 59 32 36 N13 30.11S TC 15  
BELLEVILLE CLOUDY 56 43 61 S3 30.09F TC 14  
CAHOKIA* MOSUNNY 60 33 36 NW10G21 30.11S TC 16  

 
 
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-022100-  
SOUTH-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CARBONDALE LGT RAIN 48 44 86 N18G31 30.12R FOG TC 9  
CAIRO* CLOUDY 64 41 43 N17 30.06S TC 18  
MARION CLOUDY 59 41 51 NE13 30.08F TC 15  
MT. VERNON CLOUDY 53 42 66 N5 30.10S TC 12  
CENTRALIA* CLOUDY 57 38 49 CALM 30.10F TC 14  
SALEM* CLOUDY 57 37 48 N5 30.10S TC 14  
METROPOLIS* LGT RAIN 54 45 73 N9G23 30.08R TC 12  

 
 
ILZ067-068-072-073-078-083-087-091-022100-  
SOUTHEAST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
LAWRENCEVILLE CLOUDY 54 33 45 N9 30.09S TC 12  
FLORA* MOSUNNY 57 34 41 NE12 30.10S TC 14  
FAIRFIELD* PTSUNNY 55 41 60 NE7 30.09F TC 13  
HARRISBURG* MOSUNNY 56 42 58 NE9G16 30.10S TC 13  
ROBINSON* CLOUDY 57 30 35 NW13 30.08S TC 14  

 
 
ABBREVIATIONS USED IN REMARKS  
TC - TEMPERATURE IN CELSIUS  
WCI - WIND CHILL INDEX  
HX - HEAT INDEX  
VSB - VISIBILITY  

 
 
 
 
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