189
ASUS43 KLOT 201901
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 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.
ILZ001-002-007-009-015-016-024-202000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 64 44 48 VRB7 30.23F TC 18
STERLING* SUNNY 67 44 43 NE7 30.24F TC 19
SAVANNA* MOSUNNY 64 41 42 NE7 30.26S TC 18
ILZ003-004-008-010-011-017-018-202000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 65 40 39 NW9 30.25S TC 18
FREEPORT* MOSUNNY 64 44 48 NE12G18 30.26F TC 18
ROCHELLE* SUNNY 65 37 36 N6 30.23S TC 18
DE KALB* MOSUNNY 64 43 47 NE9 30.24S TC 18
ILZ005-006-012>014-019>023-202000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 58 42 55 NE17G26 30.25S TC 14
CHICAGO-MIDWAY PTSUNNY 58 41 53 NE18G26 30.26R TC 14
AURORA MOSUNNY 63 44 50 NE14G20 30.23F TC 17
JOLIET* MOSUNNY 64 45 50 N8G17 30.24S TC 18
WAUKEGAN MOSUNNY 55 37 50 NE14G24 30.28S TC 13
DUPAGE AIRPORT MOSUNNY 61 45 55 E13G20 30.24S TC 16
KANKAKEE* PTSUNNY 63 42 47 NE15G23 30.24R TC 17
WHEELING MOSUNNY 57 42 57 NE16G25 30.28F TC 14
ROMEOVILLE* MOSUNNY 61 45 55 N13G23 30.24S TC 16
LANSING* PTSUNNY 56 41 56 NE15G23 30.26R TC 14
NORTHERLY ISL* N/A 54 46 74 N9 N/A TC 12
LMZ740>746-202000-
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 1023.0R 2/ 3
WAUKEGAN HARBOR 49 52 350/ 14/ 17 1024.2R 2/ 3
WILMETTE BUOY 50 60/ 19/ 23 1025.7F 2/ 3
CHICAGO BUOY 51 54 30/ 19/ 23 1023.3F 3/ 4
HARRISON CRIB 50 10/ 21/ 22 N/A
NORTHERLY ISL 55 10/ 14/ 17 N/A
CALUMET HARBOR 53 360/ 15/ 19 1024.6
BURNS HARBOR 50 20/ 12/ 14 1024.4R
MICHIGAN CITY 50 360/ 23/ 25 1023.4R
ST. JOSEPH BUOY 50 360/ 17/ 21 1024.8S 4/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-202000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 62 49 62 N10 30.21F TC 17
GALESBURG* SUNNY 64 46 51 NE12G17 30.24F TC 18
MACOMB* MOSUNNY 64 50 61 CALM 30.25S TC 18
JACKSONVILLE* MOSUNNY 64 49 58 N5G10 30.20F TC 18
PITTSFIELD* MOSUNNY 65 51 60 NE10 30.21F TC 18
ILZ028>032-037-038-041>044-048-051>054-059>061-202000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOSUNNY 67 47 49 MISG 30.21S TC 19
BLOOMINGTON PTSUNNY 67 48 50 N10 30.21F TC 19
DECATUR CLOUDY 65 54 67 N12 30.19S TC 18
PEORIA MOSUNNY 66 48 52 NE9G18 30.21F TC 19
LACON* MOSUNNY 65 45 47 N9 30.22S TC 19
LINCOLN* PTSUNNY 67 50 54 N9 30.21S TC 20
SPRINGFIELD PTSUNNY 67 51 56 NE9 30.20F TC 19
TAYLORVILLE CLOUDY 63 55 77 N8 30.21R TC 17
ILZ033-039-045-046-055>057-062-063-202000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 66 51 58 NE13 30.19R TC 19
DANVILLE* CLOUDY 67 51 57 NE10 30.19S TC 19
RANTOUL* PTSUNNY 66 50 56 N8 30.19S TC 19
MATTOON CLOUDY 66 55 67 N14G31 30.16S TC 19
PARIS* CLOUDY 65 53 65 NE13 30.18R TC 18
ILZ079-100>102-202000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 63 52 67 N10 30.20F TC 17
BELLEVILLE CLOUDY 66 57 72 N13 30.16F TC 19
CAHOKIA* CLOUDY 65 54 67 N10G18 30.18F TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-202000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 63 55 77 N8 30.15S TC 17
CAIRO* CLOUDY 63 61 92 N12 30.12S TC 17
EFFINGHAM* CLOUDY 65 58 78 CALM 30.18S TC 18
MARION CLOUDY 61 57 88 N9 30.14F TC 16
MT. VERNON CLOUDY 62 56 80 N6 30.15F TC 17
SALEM* CLOUDY 64 58 79 MISG 30.17S TC 18
METROPOLIS* LGT RAIN 63 63 100 N8 30.11S TC 17
ILZ067-068-072-073-078-083-087-091-202000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 63 60 90 N5 30.14F TC 17
FLORA* CLOUDY 63 57 82 N9 30.17S TC 17
FAIRFIELD* CLOUDY 62 56 81 N5 30.15F TC 17
HARRISBURG* RAIN 61 59 94 N6 30.13F TC 16
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page