687
ASUS43 KLOT 212308
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 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.
ILZ001-002-007-009-015-016-024-220000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 30 18 60 SE5 30.39R WCI 25 TC -1
STERLING* CLEAR 31 21 66 CALM 30.42R TC -1
SAVANNA* MOCLDY 28 18 67 SE5 30.40S WCI 22 TC -2
ILZ003-004-008-010-011-017-018-220000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 28 17 63 S6 30.41F WCI 22 TC -2
FREEPORT* CLEAR 26 18 72 S3 30.41R TC -3
DE KALB* CLEAR 24 17 74 CALM 30.41S TC -4
PERU* CLEAR 30 20 67 SE7 30.42F WCI 23 TC -1
ILZ005-006-012>014-019>023-220000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 30 9 41 S3 30.41F TC -1
CHICAGO-MIDWAY PTCLDY 31 10 41 S5 30.43F WCI 26 TC -1
AURORA CLEAR 27 16 63 S6 30.41F WCI 20 TC -3
JOLIET* CLEAR 27 14 59 CALM 30.44F TC -3
WAUKEGAN CLEAR 25 11 55 S6 30.39F WCI 18 TC -4
DUPAGE AIRPORT CLEAR 26 12 55 S8 30.40F WCI 18 TC -3
KANKAKEE* CLEAR 29 20 67 SE3 30.45F TC -1
WHEELING CLEAR 27 11 51 S6 30.42F WCI 20 TC -3
MORRIS* CLEAR 30 19 64 SE5 30.43F WCI 25 TC -1
ROMEOVILLE* CLEAR 30 14 51 VRB5 30.44F WCI 25 TC -1
LANSING* CLEAR 25 11 57 S6 30.45F WCI 18 TC -4
NORTHERLY ISL* N/A 31 10 41 S7 N/A WCI 24 TC 0
LMZ740>746-220000-
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 32 190/ 5/ 7 N/A
CALUMET HARBOR 32 190/ 3/ 6 1030.2
BURNS HARBOR 29 CALM 1031.5F
ILZ025>027-034>036-040-047-049-050-058-095>099-220000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 34 22 61 SE6 30.38F WCI 29 TC 1
GALESBURG* CLEAR 33 25 73 SE3 30.43R TC 0
MACOMB* CLEAR 32 24 72 S6 30.44S WCI 26 TC 0
JACKSONVILLE* PTCLDY 36 21 53 SE5 30.43S WCI 32 TC 2
ILZ028>032-037-038-041>044-048-051>054-059>061-220000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 31 24 74 SE5 30.44S WCI 26 TC -1
BLOOMINGTON CLEAR 30 21 69 S7 30.44S WCI 23 TC -1
DECATUR CLEAR 34 22 61 SE6 30.45R WCI 29 TC 1
PEORIA CLEAR 33 19 56 S5 30.44R WCI 29 TC 1
LACON* CLEAR 32 19 58 SE3 30.43R TC 0
LINCOLN* CLEAR 34 21 60 S3 30.45S TC 1
SPRINGFIELD CLEAR 34 23 64 S6 30.44S WCI 29 TC 1
TAYLORVILLE CLEAR 36 22 58 CALM 30.45S TC 2
ILZ033-039-045-046-055>057-062-063-220000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 32 23 69 SE7 30.45S WCI 26 TC 0
DANVILLE* CLEAR 32 21 64 CALM 30.47S TC 0
RANTOUL* CLEAR 33 22 63 SE5 30.44F WCI 29 TC 1
MATTOON CLEAR 36 17 46 SE5 30.44S WCI 32 TC 2
PARIS* CLEAR 33 21 60 CALM 30.47R TC 1
ILZ079-100>102-220000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 37 21 52 E7 30.44S WCI 32 TC 3
BELLEVILLE CLEAR 39 21 47 SE3 30.43R TC 4
SPARTA* CLEAR 36 21 55 E3 30.44F TC 2
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-220000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 40 19 43 E6 30.44R TC 4
CAIRO* CLEAR 43 21 41 NE5 30.44R TC 6
EFFINGHAM* CLEAR 34 27 75 CALM 30.48S TC 1
MARION PTCLDY 43 18 36 E5 30.45R TC 6
MT. VERNON CLEAR 39 19 44 CALM 30.46R TC 4
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* CLEAR 39 19 43 CALM 30.46R TC 4
METROPOLIS* CLEAR 42 14 31 CALM 30.45R TC 6
ILZ067-068-072-073-078-083-087-091-220000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 35 25 66 NE6 30.48R WCI 30 TC 2
FLORA* CLEAR 34 25 69 CALM 30.47S TC 1
FAIRFIELD* CLEAR 37 18 44 NE5 30.46S WCI 34 TC 3
HARRISBURG* CLEAR 38 18 43 CALM 30.46R TC 4
ROBINSON* CLEAR 36 21 55 SE2 30.47R TC 2
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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