828
ASUS43 KLOT 212201
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 PM CST SUN DEC 21 2025
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 CLEAR 36 18 48 SE7 30.38F WCI 30 TC 2
STERLING* CLEAR 33 18 53 SE3 30.41F TC 1
SAVANNA* CLEAR 32 16 52 SE6 30.40F WCI 26 TC 0
ILZ003-004-008-010-011-017-018-212300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 30 16 56 S7 30.42S WCI 23 TC -1
FREEPORT* CLEAR 29 19 64 S7 30.41F WCI 22 TC -1
DE KALB* CLEAR 28 18 67 CALM 30.41F TC -2
PERU* CLEAR 34 19 54 SE8 30.42F WCI 27 TC 1
ILZ005-006-012>014-019>023-212300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 32 9 38 SW7 30.42F WCI 26 TC 0
CHICAGO-MIDWAY PTCLDY 32 9 38 SW8 30.45S WCI 25 TC 0
AURORA CLEAR 30 14 51 S6 30.42F WCI 24 TC -1
JOLIET* CLEAR 33 14 45 CALM 30.45F TC 1
WAUKEGAN CLEAR 30 10 43 SW8 30.40F WCI 22 TC -1
DUPAGE AIRPORT CLEAR 30 12 47 S3 30.42F TC -1
KANKAKEE* CLEAR 33 18 53 CALM 30.47S TC 1
WHEELING CLEAR 32 9 38 SW6 30.44S WCI 26 TC 0
MORRIS* CLEAR 33 18 52 S3 30.44S TC 1
ROMEOVILLE* CLEAR 32 14 47 S5 30.45S WCI 27 TC 0
LANSING* CLEAR 32 10 40 CALM 30.45F TC 0
NORTHERLY ISL* N/A 32 8 37 S7 N/A WCI 26 TC 0
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)
NORTHERLY ISL 34 230/ 5/ 8 N/A
CALUMET HARBOR 33 190/ 6/ 6 1030.3S
BURNS HARBOR 31 CALM 1031.8R
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 CLEAR 39 22 50 S6 30.40S WCI 35 TC 4
GALESBURG* CLEAR 37 26 65 SE5 30.41S WCI 33 TC 3
MACOMB* CLEAR 36 22 57 SE8 30.43S WCI 30 TC 2
JACKSONVILLE* CLEAR 39 22 50 SE6 30.43S WCI 35 TC 4
ILZ028>032-037-038-041>044-048-051>054-059>061-212300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 35 20 53 SE3 30.44F TC 2
BLOOMINGTON CLEAR 36 18 48 SE6 30.44S WCI 31 TC 2
DECATUR CLEAR 36 23 59 MISG 30.44S TC 2
PEORIA CLEAR 37 18 46 SE7 30.43S WCI 32 TC 3
LACON* CLEAR 36 17 45 SE9 30.42S WCI 29 TC 2
LINCOLN* CLEAR 37 21 52 S5 30.45R WCI 33 TC 3
SPRINGFIELD CLEAR 38 23 55 S7 30.44R WCI 33 TC 3
TAYLORVILLE CLEAR 38 24 55 S5 30.45R WCI 35 TC 4
ILZ033-039-045-046-055>057-062-063-212300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 36 22 56 SE6 30.45S WCI 31 TC 2
DANVILLE* CLEAR 37 20 50 CALM 30.47S TC 3
RANTOUL* CLEAR 37 21 53 SE3 30.45S TC 3
MATTOON CLEAR 38 19 46 SE5 30.44R WCI 34 TC 3
PARIS* CLEAR 37 22 54 CALM 30.47R TC 3
ILZ079-100>102-212300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 43 21 42 E7 30.44S TC 6
BELLEVILLE CLEAR 44 20 38 SE5 30.42F TC 6
CAHOKIA* CLEAR 44 18 35 SE7 30.43S TC 7
SPARTA* CLEAR 43 20 39 E5 30.44S TC 6
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 CLEAR 44 19 36 NE9 30.43R TC 7
CAIRO* CLEAR 48 20 33 NE9 30.41S TC 9
EFFINGHAM* CLEAR 39 20 46 E3 30.47S TC 4
MT. VERNON CLEAR 44 19 36 E6 30.45R TC 7
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* CLEAR 43 19 37 NE3 30.45R TC 6
METROPOLIS* CLEAR 46 15 28 CALM 30.42S TC 8
ILZ067-068-072-073-078-083-087-091-212300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 39 24 55 N5 30.47R TC 4
FLORA* CLEAR 41 25 52 CALM 30.47R TC 5
FAIRFIELD* CLEAR 43 18 36 E5 30.46R TC 6
HARRISBURG* CLEAR 44 19 37 E5 30.46R TC 6
ROBINSON* CLEAR 41 23 48 E5 30.46R TC 5
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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