805
ASUS43 KLOT 201808
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 PM CDT WED MAY 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.
ILZ001-002-007-009-015-016-024-201900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 62 43 49 N9 30.24F TC 17
6HR MIN TEMP: 49; 6HR MAX TEMP: 63;
STERLING* SUNNY 67 43 41 NE3 30.25F TC 19
SAVANNA* PTSUNNY 62 41 46 N6 30.26F TC 16
ILZ003-004-008-010-011-017-018-201900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 64 40 41 N12 30.25F TC 18
6HR MIN TEMP: 49; 6HR MAX TEMP: 64;
FREEPORT* PTSUNNY 62 44 50 N12 30.27F TC 17
ROCHELLE* MOSUNNY 64 39 39 N8G20 30.24F TC 18
DE KALB* PTSUNNY 62 43 50 NE13 30.25F TC 17
PERU* MOSUNNY 66 45 45 E12G18 30.23F TC 19
ILZ005-006-012>014-019>023-201900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 58 42 55 NE15G22 30.25S TC 14
6HR MIN TEMP: 53; 6HR MAX TEMP: 59;
CHICAGO-MIDWAY PTSUNNY 59 42 53 NE20G26 30.25F TC 15
6HR MIN TEMP: 55; 6HR MAX TEMP: 59;
AURORA MOSUNNY 63 44 50 NE10 30.24S TC 17
6HR MIN TEMP: 51; 6HR MAX TEMP: 63;
JOLIET* MOSUNNY 63 46 53 NE12 30.24S TC 17
WAUKEGAN MOSUNNY 55 43 63 NE13G24 30.28R TC 13
6HR MIN TEMP: 49; 6HR MAX TEMP: 58;
DUPAGE AIRPORT CLOUDY 59 44 57 NE15G23 30.24S TC 15
6HR MIN TEMP: 51; 6HR MAX TEMP: 60;
KANKAKEE* PTSUNNY 62 44 51 NE13G25 30.22F TC 17
WHEELING PTSUNNY 56 43 61 E15G25 30.29R TC 13
6HR MIN TEMP: 52; 6HR MAX TEMP: 58;
MORRIS* MOSUNNY 64 45 48 NE6 30.22F TC 18
ROMEOVILLE* MOSUNNY 61 45 55 NE17G23 30.24S TC 16
LANSING* PTSUNNY 55 41 58 N12G23 30.25S TC 13
NORTHERLY ISL* N/A 56 46 69 N12 N/A TC 13
LMZ740>746-201900-
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 46 1023.0 2/ 3
WAUKEGAN HARBOR 49 52 350/ 16/ 21 1024.2 2/ 3
WILMETTE BUOY 50 60/ 17/ 23 1025.8R 2/ 3
CHICAGO BUOY 52 54 20/ 19/ 23 1023.3 2/ 4
HARRISON CRIB 51 20/ 20/ 22 N/A
NORTHERLY ISL 56 350/ 13/ 14 N/A
CALUMET HARBOR 54 340/ 12/ 19 1024.5S
BURNS HARBOR 51 10/ 10/ 13 1024.0F
MICHIGAN CITY 50 10/ 23/ 24 1023.1F
ST. JOSEPH BUOY 51 360/ 16/ 19 1024.6F 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-201900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 61 48 62 NE9 30.24S TC 16
GALESBURG* MOSUNNY 62 46 55 N8 30.25S TC 17
MACOMB* MOSUNNY 62 49 61 CALM 30.27S TC 17
JACKSONVILLE* MOSUNNY 64 51 63 N7 30.22S TC 18
PITTSFIELD* MOSUNNY 63 49 61 CALM 30.24S TC 17
ILZ028>032-037-038-041>044-048-051>054-059>061-201900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 65 48 53 MISG 30.22S TC 19
BLOOMINGTON PTSUNNY 65 51 60 NE12 30.22S TC 18
DECATUR CLOUDY 63 52 67 N10 30.19F TC 17
PEORIA MOSUNNY 64 47 53 NE6 30.22F TC 18
6HR MIN TEMP: 50; 6HR MAX TEMP: 64;
LACON* SUNNY 64 44 49 N6 30.22F TC 18
LINCOLN* PTSUNNY 65 51 60 N12 30.21F TC 19
SPRINGFIELD PTSUNNY 65 51 60 NE7G16 30.21S TC 18
6HR MIN TEMP: 53; 6HR MAX TEMP: 65;
TAYLORVILLE CLOUDY 63 55 77 N9 30.20F TC 17
ILZ033-039-045-046-055>057-062-063-201900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 64 51 62 NE13 30.18F TC 18
DANVILLE* CLOUDY 66 52 60 NE10 30.19F TC 19
RANTOUL* CLOUDY 63 48 57 NE9 30.20S TC 17
MATTOON CLOUDY 64 54 69 NE12 30.16F TC 18
PARIS* CLOUDY 64 53 68 NE10 30.18F TC 18
ILZ079-100>102-201900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 63 52 67 N8 30.21R TC 17
BELLEVILLE CLOUDY 66 58 75 N7 30.17S TC 19
CAHOKIA* CLOUDY 64 52 64 N7 30.19S TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 63 55 77 N8 30.15F TC 17
CAIRO* CLOUDY 64 62 93 N12 30.12F TC 18
EFFINGHAM* CLOUDY 64 57 79 NW8 30.19F TC 18
MARION LGT RAIN 61 57 88 N14 30.15F TC 16
MT. VERNON CLOUDY 61 54 77 N5 30.17S TC 16
CENTRALIA* CLOUDY 64 55 73 NE7 30.17S TC 18
SALEM* CLOUDY 64 58 79 MISG 30.17F TC 18
METROPOLIS* CLOUDY 63 63 100 NW9 30.12S TC 17
ILZ067-068-072-073-078-083-087-091-201900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE LGT RAIN 63 59 87 N8 30.14F TC 17
FLORA* CLOUDY 63 55 77 NE8 30.17F TC 17
FAIRFIELD* LGT RAIN 60 55 83 N6 30.17R TC 16
HARRISBURG* LGT RAIN 61 59 94 N7 30.15F TC 16
ROBINSON* CLOUDY 64 59 82 N9 30.14F TC 18
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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