370
ASUS43 KLOT 212101
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 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.
ILZ001-002-007-009-015-016-024-212200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 37 17 44 SE6 30.39F WCI 32 TC 3
STERLING* SUNNY 33 17 51 SE5 30.42F WCI 29 TC 1
SAVANNA* SUNNY 32 14 48 S7 30.41S WCI 26 TC 0
ILZ003-004-008-010-011-017-018-212200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD SUNNY 30 14 51 S8 30.42F WCI 22 TC -1
FREEPORT* SUNNY 30 16 56 S5 30.42S WCI 25 TC -1
DE KALB* SUNNY 29 16 58 CALM 30.43F TC -2
PERU* SUNNY 35 17 48 SE3 30.43F TC 2
ILZ005-006-012>014-019>023-212200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE SUNNY 33 8 35 SW7 30.43R WCI 27 TC 1
CHICAGO-MIDWAY SUNNY 33 9 36 W8 30.45R WCI 26 TC 1
AURORA SUNNY 33 13 43 SW5 30.44R WCI 29 TC 1
JOLIET* SUNNY 34 15 45 CALM 30.46S TC 1
WAUKEGAN SUNNY 31 7 36 W9 30.42R WCI 23 TC -1
DUPAGE AIRPORT SUNNY 31 12 45 SW6 30.43S WCI 25 TC -1
KANKAKEE* SUNNY 33 16 48 CALM 30.46S TC 1
WHEELING SUNNY 32 8 36 W6 30.44S WCI 26 TC 0
MORRIS* SUNNY 33 17 52 CALM 30.45S TC 0
ROMEOVILLE* SUNNY 32 12 43 SW6 30.45S WCI 26 TC 0
LANSING* SUNNY 33 7 33 SW5 30.46R WCI 29 TC 1
NORTHERLY ISL* N/A 33 8 35 W3 N/A TC 1
LMZ740>746-212200-
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 33 220/ 7/ 9 N/A
CALUMET HARBOR 32 200/ 6/ 8 1030.1
BURNS HARBOR 29 CALM 1031.5S
ILZ025>027-034>036-040-047-049-050-058-095>099-212200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 42 17 36 S9 30.40R TC 6
GALESBURG* SUNNY 38 25 60 SE5 30.41R WCI 34 TC 3
MACOMB* SUNNY 40 22 49 SE10 30.42F TC 4
JACKSONVILLE* SUNNY 41 21 45 SE8 30.42S TC 5
ILZ028>032-037-038-041>044-048-051>054-059>061-212200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC SUNNY 36 15 42 CALM 30.45S TC 2
BLOOMINGTON SUNNY 39 19 44 S3 30.44S TC 4
DECATUR SUNNY 39 19 44 SE3 30.44S TC 4
PEORIA SUNNY 38 15 39 SE8 30.43S HAZE WCI 32
LACON* SUNNY 37 14 40 SE3 30.42F TC 3
LINCOLN* SUNNY 39 16 39 SE5 30.44F TC 4
SPRINGFIELD SUNNY 41 20 43 SE7 30.43 TC 5
TAYLORVILLE SUNNY 40 21 46 SE5 30.44S TC 5
ILZ033-039-045-046-055>057-062-063-212200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 38 19 46 S3 30.45R TC 3
DANVILLE* SUNNY 38 19 46 CALM 30.46R TC 3
RANTOUL* SUNNY 37 19 48 CALM 30.45R TC 3
MATTOON SUNNY 41 13 31 S3 30.43S TC 5
PARIS* SUNNY 38 19 45 SE3 30.46R TC 4
ILZ079-100>102-212200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 43 18 36 E5 30.44R TC 6
BELLEVILLE MOSUNNY 45 20 37 SE6 30.43R TC 7
CAHOKIA* SUNNY 46 17 31 SE6 30.43R TC 8
SPARTA* SUNNY 44 19 36 SE3 30.44R TC 7
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-212200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 46 19 34 E8 30.42S TC 8
CAIRO* SUNNY 49 19 30 NE12 30.41S TC 10
EFFINGHAM* MOSUNNY 40 18 40 E3 30.47R TC 5
MARION MOSUNNY 46 18 31 E8 30.42F TC 8
MT. VERNON SUNNY 45 18 34 E6 30.44S TC 7
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* SUNNY 44 18 35 E3 30.43S TC 7
METROPOLIS* MOSUNNY 47 14 26 CALM 30.42S TC 8
ILZ067-068-072-073-078-083-087-091-212200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 41 21 44 NE3 30.46S TC 5
FLORA* MOSUNNY 41 21 45 SE3 30.45S TC 5
FAIRFIELD* SUNNY 44 17 33 E6 30.44S TC 7
HARRISBURG* SUNNY 45 19 35 E6 30.44S TC 7
ROBINSON* SUNNY 43 19 39 E5 30.45S TC 6
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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