663
ASUS43 KLOT 212203
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 PM CDT SAT MAR 21 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.
ILZ001-002-007-009-015-016-024-212300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 86 46 24 SW12 29.67F HX 83 TC 30
STERLING* MOSUNNY 83 47 28 SW15 29.68F HX 81 TC 28
SAVANNA* MOSUNNY 82 46 27 SW12G18 29.67F HX 80 TC 28
ILZ003-004-008-010-011-017-018-212300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 79 47 32 SW16 29.68F TC 26
FREEPORT* MOSUNNY 78 43 29 W12G18 29.69F TC 25
ROCHELLE* MOSUNNY 79 44 28 SW20 29.69F TC 26
DE KALB* MOSUNNY 75 50 40 SW13 29.70F TC 24
ILZ005-006-012>014-019>023-212300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 74 44 34 S12 29.68F TC 23
CHICAGO-MIDWAY PTSUNNY 75 43 31 S15G28 29.70F TC 24
AURORA MOSUNNY 78 46 32 SW14 29.69F TC 26
JOLIET* SUNNY 80 46 30 SW12 29.71F TC 27
WAUKEGAN MOSUNNY 72 45 37 SW17 29.66F TC 22
DUPAGE AIRPORT MOSUNNY 75 47 36 SW15G25 29.69F TC 24
WHEELING MOSUNNY 73 44 35 SW14G22 29.69F TC 23
MORRIS* SUNNY 80 46 30 SW16 29.70F TC 27
ROMEOVILLE* SUNNY 77 46 33 SW12G21 29.71F TC 25
LANSING* SUNNY 73 43 34 SW14G22 29.73F TC 23
NORTHERLY ISL* N/A 72 39 30 S13 N/A TC 22
LMZ740>746-212300-
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)
HARRISON CRIB 69 210/ 18/ 19 N/A
NORTHERLY ISL 71 190/ 17/ 18 N/A
CALUMET HARBOR 71 170/ 10/ 14 1006.1
BURNS HARBOR 70 180/ 7/ 11 1007.5F
MICHIGAN CITY 69 190/ 15/ 18 1005.5F
ILZ025>027-034>036-040-047-049-050-058-095>099-212300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 87 45 23 SW10 29.73F HX 84 TC 31
MACOMB* SUNNY 87 44 21 SW13 29.75F HX 84 TC 31
JACKSONVILLE* SUNNY 87 42 20 SW8 29.75F HX 83 TC 30
PITTSFIELD* SUNNY 87 45 23 S10 29.76F HX 84 TC 31
ILZ028>032-037-038-041>044-048-051>054-059>061-212300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC SUNNY 82 38 20 MISG 29.73F HX 80 TC 28
BLOOMINGTON SUNNY 82 46 28 SW13 29.76F HX 80 TC 28
DECATUR SUNNY 82 49 31 SW14 29.77F HX 81 TC 28
PEORIA SUNNY 82 47 29 SW15 29.73F HX 80 TC 28
LACON* MOSUNNY 82 43 25 SW9 29.70F HX 80 TC 28
LINCOLN* SUNNY 85 38 18 SW6 29.75F HX 82 TC 30
SPRINGFIELD SUNNY 85 45 24 S15 29.75F HX 82 TC 29
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-212300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 82 45 27 SW16 29.77F HX 80 TC 28
DANVILLE* SUNNY 80 45 28 S10 29.78F TC 27
RANTOUL* SUNNY 82 43 25 SW13 29.76F HX 80 TC 28
MATTOON SUNNY 79 48 33 SW8 29.79S TC 26
PARIS* SUNNY 79 47 33 SW7 29.79F TC 26
ILZ079-100>102-212300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 86 46 25 S8 29.78F HX 83 TC 30
BELLEVILLE SUNNY 86 53 32 S6 29.76F HX 84 TC 30
CAHOKIA* SUNNY 86 52 30 S6 29.77F HX 84 TC 30
SPARTA* SUNNY 83 52 33 SE5 29.80F HX 82 TC 29
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-212300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 86 55 34 SE6 29.78F HX 84 TC 30
CAIRO* SUNNY 85 59 41 SW9 29.81F HX 85 TC 30
EFFINGHAM* SUNNY 82 46 27 S7 29.81F HX 81 TC 28
MARION SUNNY 84 55 37 CALM 29.80F HX 83 TC 29
MT. VERNON N/A 84 56 38 S7 29.80F HX 83 TC 29
CENTRALIA* SUNNY 84 50 29 S3 29.79F HX 82 TC 29
SALEM* SUNNY 85 48 27 S8 29.80S HX 83 TC 30
METROPOLIS* SUNNY 83 58 41 SW3 29.82F HX 83 TC 29
ILZ067-068-072-073-078-083-087-091-212300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 82 47 29 S10 29.79F HX 80 TC 28
FLORA* SUNNY 82 50 32 S7 29.81F HX 81 TC 28
FAIRFIELD* SUNNY 82 49 31 S6 29.81S HX 80 TC 28
HARRISBURG* SUNNY 84 51 32 CALM 29.81F HX 82 TC 29
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