631  
ASUS43 KLOT 152008  
RWRIL  
 
ILLINOIS REGIONAL WEATHER ROUNDUP  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
300 PM CDT FRI MAY 15 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.
 
 
ILZ001-002-007-009-015-016-024-152100-  
NORTHWEST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
MOLINE SUNNY 79 56 45 S12G21 29.78F HX 80 TC 26  
STERLING* SUNNY 80 53 39 VRB5 29.82F HX 80 TC 27  
SAVANNA* SUNNY 81 54 39 SW12G17 29.79F HX 80 TC 27  

 
 
ILZ003-004-008-010-011-017-018-152100-  
NORTH CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
ROCKFORD SUNNY 79 53 40 S12G25 29.82F TC 26  
FREEPORT* SUNNY 79 55 44 S8G16 29.82F HX 80 TC 26  
ROCHELLE* SUNNY 79 48 34 S15G23 29.83F TC 26  
DE KALB* SUNNY 74 53 48 S15G23 29.85F TC 24  
PERU* SUNNY 79 52 38 S15G21 29.84S TC 26  

 
 
ILZ005-006-012>014-019>023-152100-  
NORTHEAST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CHICAGO-OHARE SUNNY 71 48 43 S18G25 29.86F TC 22  
CHICAGO-MIDWAY SUNNY 71 47 42 S13G32 29.88F TC 22  
AURORA SUNNY 76 51 41 SE18G29 29.84F TC 24  
JOLIET* SUNNY 74 51 44 S14 29.87F TC 24  
WAUKEGAN SUNNY 72 51 47 S20G26 29.84F TC 22  
DUPAGE AIRPORT SUNNY 72 51 47 S15G25 29.85F TC 22  
KANKAKEE* SUNNY 72 47 41 S13G22 29.90F TC 22  
WHEELING SUNNY 71 48 43 S20G26 29.87F TC 22  
MORRIS* SUNNY 75 48 38 S18 29.86F TC 24  
ROMEOVILLE* SUNNY 68 48 49 S17G28 29.88F TC 20  
LANSING* SUNNY 70 47 43 S13G18 29.91F TC 21  
NORTHERLY ISL* N/A 69 44 40 S9 N/A TC 21  

 
 
LMZ740>746-152100-  
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)  

 
 
ILZ025>027-034>036-040-047-049-050-058-095>099-152100-  
WEST-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
QUINCY MOSUNNY 79 59 50 S9 29.80F HX 80 TC 26  
GALESBURG* SUNNY 77 57 50 S12G18 29.82F TC 25  
MACOMB* SUNNY 77 60 55 S9 29.83F TC 25  
JACKSONVILLE* MOSUNNY 78 60 53 S10 29.83F TC 25  
PITTSFIELD* MOSUNNY 79 59 51 S10 29.82F HX 80 TC 26  

 
 
ILZ028>032-037-038-041>044-048-051>054-059>061-152100-  
CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
PONTIAC SUNNY 74 54 48 MISG 29.88F TC 23  
BLOOMINGTON SUNNY 72 57 59 S16 29.88F TC 22  
DECATUR SUNNY 73 56 54 S16G25 29.89F TC 23  
PEORIA SUNNY 74 57 55 S13 29.84F TC 23  
LACON* SUNNY 73 54 50 S13 29.83F TC 23  
LINCOLN* SUNNY 75 58 56 S13 29.86F TC 24  
SPRINGFIELD SUNNY 77 59 53 S15 29.85F TC 25  
TAYLORVILLE SUNNY 75 59 57 S10 29.88S TC 24  

 
 
ILZ033-039-045-046-055>057-062-063-152100-  
EAST-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CHAMPAIGN SUNNY 70 55 59 S21 29.91F TC 21  
DANVILLE* SUNNY 68 50 53 S16 29.94S TC 20  
RANTOUL* SUNNY 68 55 62 S17 29.92S TC 20  
MATTOON SUNNY 72 54 53 S12G24 29.92S TC 22  
PARIS* PTSUNNY 67 52 58 S17 29.94F TC 20  

 
 
ILZ079-100>102-152100-  
SOUTHWEST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
ALTON SUNNY 82 59 44 S17 29.84F HX 82 TC 28  
BELLEVILLE SUNNY 81 61 49 S18 29.83F HX 82 TC 27  
CAHOKIA* MOSUNNY 84 59 42 S10G21 29.83F HX 84 TC 29  

 
 
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-152100-  
SOUTH-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CARBONDALE PTSUNNY 82 55 39 S18G28 29.90F HX 81 TC 28  
CAIRO* PTSUNNY 83 58 41 S15 29.92F HX 83 TC 29  
EFFINGHAM* SUNNY 75 56 50 SE12 29.93F TC 24  
MARION MOSUNNY 81 55 41 S12G23 29.92F HX 80 TC 27  
MT. VERNON SUNNY 81 57 43 S18 29.91F HX 81 TC 27  
CENTRALIA* SUNNY 80 55 41 S12G21 29.89F HX 80 TC 27  
SALEM* SUNNY 80 56 42 S15G23 29.90S HX 80 TC 27  
METROPOLIS* CLOUDY 81 56 43 SE8 29.95F HX 81 TC 27  

 
 
ILZ067-068-072-073-078-083-087-091-152100-  
SOUTHEAST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
LAWRENCEVILLE MOSUNNY 77 47 34 S22G28 29.94F TC 25  
FLORA* SUNNY 77 55 47 S17 29.92F TC 25  
FAIRFIELD* SUNNY 79 51 38 S16G23 29.92F TC 26  
HARRISBURG* SUNNY 79 55 43 S10 29.93F TC 26  
ROBINSON* CLOUDY 73 52 46 S15G22 29.93S TC 23  

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

 
 
 
 
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