889
ASUS43 KLOT 202101
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 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.
ILZ001-002-007-009-015-016-024-202200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 66 45 46 NE8 30.20F TC 19
STERLING* SUNNY 70 42 36 N8 30.21F TC 21
SAVANNA* SUNNY 67 42 39 N8 30.22F TC 20
ILZ003-004-008-010-011-017-018-202200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 66 39 37 NE9 30.22F TC 19
FREEPORT* SUNNY 66 44 44 NE8G16 30.24S TC 19
ROCHELLE* SUNNY 68 39 34 N7 30.21F TC 20
DE KALB* MOSUNNY 64 45 49 E16 30.23F TC 18
PERU* SUNNY 70 45 40 E9G16 30.19F TC 21
ILZ005-006-012>014-019>023-202200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 57 35 43 NE20G26 30.25F TC 14
CHICAGO-MIDWAY MOSUNNY 57 37 47 NE20G25 30.25F TC 14
AURORA MOSUNNY 62 44 51 NE16 30.22F TC 17
JOLIET* MOSUNNY 64 45 50 E13G22 30.23F TC 18
WAUKEGAN SUNNY 53 33 46 NE15G23 30.28S TC 12
DUPAGE AIRPORT MOSUNNY 58 40 51 NE15G24 30.23F TC 14
KANKAKEE* MOSUNNY 63 41 45 NE18G25 30.22F TC 17
WHEELING SUNNY 55 34 45 E14G26 30.29S TC 13
MORRIS* N/A 64 43 45 NE6 30.21F TC 18
ROMEOVILLE* MOSUNNY 63 45 51 NE16G23 30.24F TC 17
LANSING* MOSUNNY 57 39 50 NE14G21 30.25F TC 14
NORTHERLY ISL* N/A 54 39 57 MISG N/A TC 12
LMZ740>746-202200-
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 1022.9F 3/ 4
WAUKEGAN HARBOR 49 52 360/ 16/ 19 1024.0F 2/ 4
WILMETTE BUOY 50 60/ 19/ 23 1026.0S 3/ 4
CHICAGO BUOY 51 55 20/ 19/ 25 1023.3F 3/ 4
HARRISON CRIB 50 20/ 21/ 23 N/A
NORTHERLY ISL 55 340/ 10/ 15 N/A
CALUMET HARBOR 53 360/ 14/ 19 1024.9
BURNS HARBOR 51 20/ 11/ 13 1024.7S
MICHIGAN CITY 51 20/ 21/ 22 1023.9F
ST. JOSEPH BUOY 51 360/ 17/ 21 1025.2S 4/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-202200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 65 49 56 N9G17 30.18F TC 18
GALESBURG* SUNNY 67 44 43 NE10 30.20F TC 20
MACOMB* SUNNY 67 48 50 CALM 30.21F TC 20
JACKSONVILLE* MOSUNNY 67 50 55 NE9 30.17F TC 19
PITTSFIELD* PTSUNNY 68 51 54 NE12 30.18F TC 20
ILZ028>032-037-038-041>044-048-051>054-059>061-202200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC SUNNY 68 44 42 MISG 30.20S TC 20
BLOOMINGTON MOSUNNY 70 47 43 NE16 30.17F TC 21
DECATUR MOSUNNY 67 51 56 NE13G20 30.16F TC 19
PEORIA SUNNY 68 45 43 NE8 30.18F TC 20
LACON* SUNNY 68 45 44 NE7 30.18F TC 20
LINCOLN* MOSUNNY 71 50 47 NE9G16 30.17F TC 22
SPRINGFIELD MOSUNNY 69 49 48 NE7 30.16F TC 21
TAYLORVILLE CLOUDY 64 54 68 NE12 30.17F TC 18
ILZ033-039-045-046-055>057-062-063-202200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 70 49 47 NE14 30.16F TC 21
DANVILLE* PTSUNNY 68 48 49 NE9 30.17F TC 20
RANTOUL* MOSUNNY 69 46 44 NE12 30.17S TC 20
MATTOON CLOUDY 67 55 65 N13 30.14F TC 19
PARIS* CLOUDY 66 53 63 NE8 30.16F TC 19
ILZ079-100>102-202200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 66 54 63 N10 30.17F TC 19
CAHOKIA* CLOUDY 66 55 67 N10G18 30.15F TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-202200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 64 57 77 N8 30.12F TC 18
CAIRO* CLOUDY 66 62 86 NE14 30.10F TC 19
EFFINGHAM* CLOUDY 66 58 73 NE3 30.16F TC 19
MARION CLOUDY 63 57 82 N10 30.13S TC 17
CENTRALIA* CLOUDY 66 57 72 N3 30.14F TC 19
SALEM* CLOUDY 67 59 76 MISG 30.14F TC 19
METROPOLIS* CLOUDY 63 63 100 N7 30.10F TC 17
ILZ067-068-072-073-078-083-087-091-202200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 63 59 87 N12 30.12F TC 17
FLORA* CLOUDY 66 59 77 NE12 30.14F TC 19
FAIRFIELD* CLOUDY 64 57 78 N8 30.13F TC 18
HARRISBURG* CLOUDY 62 60 91 N7 30.12F TC 17
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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