984
ASUS43 KLOT 202203
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 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.
ILZ001-002-007-009-015-016-024-202300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 66 45 46 NE10 30.19F TC 19
STERLING* SUNNY 70 41 34 NE12 30.20F TC 21
SAVANNA* SUNNY 67 42 39 NE9 30.21F TC 19
ILZ003-004-008-010-011-017-018-202300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 64 43 46 NE7 30.22S TC 18
FREEPORT* SUNNY 66 42 42 NE8 30.23F TC 19
ROCHELLE* MOSUNNY 67 41 39 E16 30.20S TC 19
PERU* SUNNY 68 43 40 NE12 30.19S TC 20
ILZ005-006-012>014-019>023-202300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 56 34 43 NE16G26 30.25S TC 13
CHICAGO-MIDWAY MOSUNNY 57 35 43 NE14G23 30.24F TC 14
AURORA SUNNY 60 41 49 NE15G24 30.23R TC 16
WAUKEGAN SUNNY 53 32 44 NE13G23 30.26F TC 12
DUPAGE AIRPORT SUNNY 57 37 47 NE16G25 30.24R TC 14
WHEELING MOSUNNY 55 33 43 NE16G24 30.27F TC 13
MORRIS* SUNNY 64 43 45 NE7 30.21S TC 18
ROMEOVILLE* SUNNY 61 41 48 NE14G23 30.23F TC 16
LANSING* SUNNY 56 38 50 NE14G21 30.24F TC 14
NORTHERLY ISL* N/A 55 41 59 N10 N/A TC 13
LMZ740>746-202300-
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 47 1022.6F 2/ 4
WAUKEGAN HARBOR 49 52 360/ 16/ 21 1023.6F 2/ 4
WILMETTE BUOY 50 70/ 17/ 21 1025.3F 3/ 4
CHICAGO BUOY 52 55 20/ 19/ 25 1023.1F 4/ 4
HARRISON CRIB 51 20/ 20/ 22 N/A
NORTHERLY ISL 54 350/ 11/ 16 N/A
CALUMET HARBOR 53 360/ 12/ 19 1024.5
BURNS HARBOR 51 30/ 10/ 12 1024.4F
MICHIGAN CITY 51 20/ 20/ 22 1023.3F
ST. JOSEPH BUOY 51 360/ 17/ 21 1024.7F 4/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-202300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 66 49 54 N8 30.17F TC 19
PITTSFIELD* PTSUNNY 68 50 52 NE3 30.16F TC 20
ILZ028>032-037-038-041>044-048-051>054-059>061-202300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC SUNNY 67 43 42 MISG 30.19S TC 19
BLOOMINGTON SUNNY 69 46 43 NE15G22 30.17S TC 21
DECATUR SUNNY 68 50 52 NE15 30.14F TC 20
PEORIA SUNNY 68 46 45 VRB7 30.17F TC 20
LACON* MOSUNNY 68 46 43 NE7 30.18S TC 20
SPRINGFIELD MOSUNNY 70 50 49 NE13 30.15F TC 21
TAYLORVILLE CLOUDY 68 52 56 NE8 30.15F TC 20
ILZ033-039-045-046-055>057-062-063-202300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 69 48 47 NE10G18 30.14F TC 21
RANTOUL* MOSUNNY 68 46 45 NE15 30.16S TC 20
MATTOON PTSUNNY 67 54 63 NE14 30.13F TC 19
PARIS* PTSUNNY 67 53 61 NE8G16 30.15S TC 20
ILZ079-100>102-202300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 66 54 63 NE9 30.15F TC 19
BELLEVILLE CLOUDY 68 57 68 N12 30.11F TC 20
CAHOKIA* CLOUDY 66 55 67 N10 30.13F TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-202300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* CLOUDY 67 56 70 NE6 30.15F TC 19
MARION CLOUDY 63 57 82 N8 30.12F TC 17
MT. VERNON N/A 66 58 75 N7 30.12 TC 19
SALEM* PTSUNNY 68 59 72 MISG 30.13F TC 20
METROPOLIS* CLOUDY 63 63 100 N12 30.09F TC 17
ILZ067-068-072-073-078-083-087-091-202300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 64 59 83 NE12 30.13R TC 18
FAIRFIELD* CLOUDY 65 58 77 N12 30.12F TC 18
ROBINSON* CLOUDY 64 61 88 NE8 30.12F TC 18
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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