290  
ASUS43 KLOT 221212  
RWRIL  
 
ILLINOIS REGIONAL WEATHER ROUNDUP  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
700 AM CDT FRI MAY 22 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.  
 
ILZ001-002-007-009-015-016-024-221300-  
NORTHWEST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS  
MOLINE CLOUDY 56 42 59 E10 30.08R TC 13  
6HR MIN TEMP: 54; 6HR MAX TEMP: 56;  
 
STERLING* PTSUNNY 55 44 66 E15 30.12F TC 13  
SAVANNA* CLOUDY 53 41 63 E14 30.11F TC 12  
 
 
ILZ003-004-008-010-011-017-018-221300-  
NORTH CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS  
ROCKFORD CLOUDY 53 42 66 NE7 30.16S TC 12  
6HR MIN TEMP: 51; 6HR MAX TEMP: 53;  
 
FREEPORT* CLOUDY 52 44 74 E10 30.16F TC 11  
ROCHELLE* CLOUDY 54 40 60 E16 30.14S TC 12  
DE KALB* CLOUDY 53 43 69 E16 30.15R TC 12  
PERU* CLOUDY 57 43 58 NE12 30.11S TC 14  
 
 
ILZ005-006-012>014-019>023-221300-  
NORTHEAST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS  
CHICAGO-OHARE CLOUDY 52 40 63 NE13G23 30.16R TC 11  
6HR MIN TEMP: 52; 6HR MAX TEMP: 54;  
 
CHICAGO-MIDWAY CLOUDY 53 43 68 E14G22 30.15F TC 12  
6HR MIN TEMP: 53; 6HR MAX TEMP: 57;  
 
AURORA CLOUDY 54 44 69 E12G20 30.12S TC 12  
6HR MIN TEMP: 51; 6HR MAX TEMP: 55;  
 
JOLIET* CLOUDY 57 46 66 E10 30.13S TC 14  
WAUKEGAN PTSUNNY 48 38 68 E13 30.19R TC 9  
6HR MIN TEMP: 48; 6HR MAX TEMP: 49; 6HR PCP: TRACE;  
 
DUPAGE AIRPORT CLOUDY 52 42 69 NE10 30.14S TC 11  
6HR MIN TEMP: 47; 6HR MAX TEMP: 54;  
 
KANKAKEE* CLOUDY 55 42 61 E13 30.12S TC 13  
WHEELING CLOUDY 50 40 68 E8 30.18S TC 10  
6HR MIN TEMP: 50; 6HR MAX TEMP: 53;  
 
MORRIS* CLOUDY 57 43 58 E10G18 30.11S TC 14  
ROMEOVILLE* CLOUDY 54 45 71 NE14G21 30.14S TC 12  
LANSING* CLOUDY 54 41 60 E8 30.15S TC 12  
NORTHERLY ISL* N/A 51 43 74 NE17 N/A TC 11  
 
 
LMZ740>746-221300-  
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 50 1020.3 3/ 4  
WAUKEGAN HARBOR 48 50 20/ 14/ 17 1021.3 3/ 4  
WILMETTE BUOY 49 90/ 17/ 21 1022.1F 3/ 4  
CHICAGO BUOY 52 54 70/ 17/ 21 1020.1 3/ 5  
HARRISON CRIB 51 60/ 19/ 21 N/A  
NORTHERLY ISL 51 60/ 16/ 18 N/A  
CALUMET HARBOR 52 40/ 10/ 14 1021.1  
BURNS HARBOR 55 80/ 6/ 7 1021.3F  
MICHIGAN CITY 54 70/ 11/ 13 1020.6S  
ST. JOSEPH BUOY 52 90/ 8/ 14 1022.5F 2/ 4  
 
 
ILZ025>027-034>036-040-047-049-050-058-095>099-221300-  
WEST-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS  
QUINCY CLOUDY 61 48 62 E9 30.01R TC 16  
GALESBURG* CLOUDY 55 42 61 E12G18 30.07S TC 13  
MACOMB* CLOUDY 57 45 63 E14 30.07R TC 14  
JACKSONVILLE* CLOUDY 59 47 65 E12 30.02S TC 15  
PITTSFIELD* CLOUDY 61 50 65 NE7 30.03R TC 16  
 
 
ILZ028>032-037-038-041>044-048-051>054-059>061-221300-  
CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS  
PONTIAC CLOUDY 57 43 58 MISG 30.09S TC 14  
BLOOMINGTON PTSUNNY 55 42 61 E21 30.08S TC 13  
DECATUR PTSUNNY 55 46 71 NE14 30.04S TC 13  
PEORIA CLOUDY 57 41 55 NE13 30.07R TC 14  
6HR MIN TEMP: 57; 6HR MAX TEMP: 59;  
 
LACON* CLOUDY 56 40 53 E12 30.09R TC 14  
LINCOLN* CLOUDY 57 44 62 E12G17 30.06R TC 14  
SPRINGFIELD CLOUDY 58 45 62 E13 30.04R TC 14  
6HR MIN TEMP: 57; 6HR MAX TEMP: 63;  
 
TAYLORVILLE PTSUNNY 55 48 76 NE9 30.03S TC 13  
 
 
ILZ033-039-045-046-055>057-062-063-221300-  
EAST-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS  
CHAMPAIGN PTSUNNY 54 44 69 NE16 30.05F TC 12  
DANVILLE* CLOUDY 55 44 66 NE14 30.08S TC 13  
RANTOUL* CLOUDY 55 43 64 NE15 30.08S TC 13  
MATTOON CLOUDY 56 49 77 NE10 30.02S TC 13  
PARIS* CLOUDY 54 46 73 NE12 30.05S TC 12  
 
 
ILZ079-100>102-221300-  
SOUTHWEST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS  
BELLEVILLE CLOUDY 62 57 85 NE6 29.97R TC 17  
CAHOKIA* PTSUNNY 62 55 77 NE8 29.97S TC 17  
 
 
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-221300-  
SOUTH-CENTRAL ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS  
CARBONDALE CLOUDY 63 59 87 E8 29.95S TC 17  
6HR MIN TEMP: 63; 6HR MAX TEMP: 64;  
 
CAIRO* CLOUDY 64 62 94 E8 29.95S TC 18  
EFFINGHAM* CLOUDY 60 53 80 E7 30.03R TC 15  
MARION CLOUDY 63 59 88 NE7 29.96F TC 17  
MT. VERNON CLOUDY 62 56 80 NE5 29.99R TC 17  
CENTRALIA* CLOUDY 61 55 78 CALM 29.98S HAZE TC 16  
SALEM* CLOUDY 62 55 77 MISG 29.99S TC 17  
METROPOLIS* CLOUDY 63 63 100 CALM 29.96R TC 17  
 
 
ILZ067-068-072-073-078-083-087-091-221300-  
SOUTHEAST ILLINOIS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS  
LAWRENCEVILLE CLOUDY 61 54 77 N7 30.01R TC 16  
FLORA* CLOUDY 61 54 77 E7 30.00S TC 16  
FAIRFIELD* CLOUDY 62 55 77 N3 29.99S TC 17  
HARRISBURG* CLOUDY 62 59 88 E7 29.98S TC 17  
ROBINSON* CLOUDY 59 55 88 NE8 30.01R TC 15  
 
 
ABBREVIATIONS USED IN REMARKS  
TC - TEMPERATURE IN CELSIUS  
WCI - WIND CHILL INDEX  
HX - HEAT INDEX  
VSB - VISIBILITY  
 
 
 
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