826
ASUS43 KLOT 220301
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 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.
ILZ001-002-007-009-015-016-024-220400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 33 21 61 SE10 30.34F WCI 25 TC 1
STERLING* CLEAR 30 22 72 SE5 30.39F WCI 25 TC -1
SAVANNA* MOCLDY 30 22 71 SE6 30.38F WCI 24 TC -1
ILZ003-004-008-010-011-017-018-220400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 27 19 72 SE3 30.41S TC -3
FREEPORT* CLOUDY 28 21 74 S6 30.40S WCI 22 TC -2
DE KALB* MOCLDY 25 19 79 CALM 30.41S TC -4
ILZ005-006-012>014-019>023-220400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 29 14 53 S5 30.41F WCI 24 TC -2
CHICAGO-MIDWAY MOCLDY 30 16 56 S9 30.43F WCI 22 TC -1
AURORA MOCLDY 28 19 69 S7 30.41S WCI 21 TC -2
JOLIET* MOCLDY 31 19 62 CALM 30.44S TC -1
WAUKEGAN CLOUDY 25 15 66 SW6 30.40S WCI 18 TC -4
DUPAGE AIRPORT CLOUDY 27 17 66 S5 30.41R WCI 22 TC -3
WHEELING CLOUDY 29 15 56 S6 30.43S WCI 23 TC -2
MORRIS* CLOUDY 29 22 74 S6 30.43F WCI 23 TC -2
LANSING* CLOUDY 25 13 61 S7 30.45S WCI 17 TC -4
NORTHERLY ISL* N/A 31 14 49 SW5 N/A WCI 26 TC 0
LMZ740>746-220400-
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 30 170/ 6/ 9 N/A
CALUMET HARBOR 30 170/ 7/ 10 1029.6
BURNS HARBOR 30 180/ 6/ 10 1030.8F
ILZ025>027-034>036-040-047-049-050-058-095>099-220400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 34 20 56 S10 30.34F WCI 26 TC 1
MACOMB* PTCLDY 29 24 82 SE9 30.38F WCI 21 TC -2
ILZ028>032-037-038-041>044-048-051>054-059>061-220400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 28 22 79 SE6 30.44S WCI 21 TC -2
BLOOMINGTON CLEAR 29 23 78 S10 30.41F WCI 20 TC -2
DECATUR CLEAR 29 20 69 S9 30.42F WCI 20 TC -2
PEORIA CLEAR 30 21 69 SE3 30.40F TC -1
LACON* MOCLDY 29 21 70 SE6 30.40F WCI 23 TC -2
LINCOLN* CLEAR 31 21 68 SE3 30.41F TC -1
SPRINGFIELD CLEAR 34 21 59 SE12 30.40F WCI 25 TC 1
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-220400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 29 20 69 SE9 30.44F WCI 20 TC -2
DANVILLE* CLEAR 25 22 88 SE6 30.46F WCI 18 TC -4
RANTOUL* CLEAR 27 21 79 SE6 30.45S WCI 21 TC -3
MATTOON PTCLDY 28 19 69 SE3 30.44F TC -2
PARIS* CLEAR 26 24 90 CALM 30.47F TC -3
ILZ079-100>102-220400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 28 21 74 SE5 30.43F WCI 23 TC -2
BELLEVILLE PTCLDY 28 21 76 CALM 30.42F TC -2
CAHOKIA* MOCLDY 27 19 72 SE3 30.42F TC -3
SPARTA* PTCLDY 35 20 54 SE7 30.45F WCI 29 TC 1
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-220400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOCLDY 31 22 69 E5 30.45S WCI 26 TC -1
CAIRO* MOCLDY 39 23 51 E6 30.45S WCI 35 TC 4
EFFINGHAM* PTCLDY 26 23 87 CALM 30.47F TC -3
MT. VERNON MOCLDY 24 20 84 CALM 30.46F TC -4
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* MOCLDY 34 19 55 SE3 30.44F TC 1
METROPOLIS* MOCLDY 34 19 54 CALM 30.45F TC 1
ILZ067-068-072-073-078-083-087-091-220400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 28 23 81 E5 30.47F WCI 23 TC -2
FAIRFIELD* PTCLDY 28 21 73 CALM 30.47S TC -2
HARRISBURG* MOCLDY 32 20 62 CALM 30.47S TC 0
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