498
ASUS43 KLOT 171110
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 AM CST WED DEC 17 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.
ILZ001-002-007-009-015-016-024-171200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 37 30 75 W10 29.92R WCI 30 TC 3
STERLING* CLEAR 34 31 88 W13 29.89R WCI 25 TC 1
SAVANNA* CLEAR 34 29 82 W8 29.90R WCI 28 TC 1
ILZ003-004-008-010-011-017-018-171200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 33 29 85 W7 29.88R WCI 27 TC 1
FREEPORT* CLEAR 33 30 88 W6 29.88S WCI 27 TC 1
DE KALB* CLEAR 35 32 88 W12 29.86R WCI 27 TC 2
PERU* CLEAR 37 32 81 W12 29.88S WCI 30 TC 3
ILZ005-006-012>014-019>023-171200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 37 30 75 W6 29.85R WCI 32 TC 3
CHICAGO-MIDWAY PTCLDY 36 31 82 W5 29.86R WCI 32 TC 2
AURORA CLEAR 33 30 88 W8 29.85R WCI 26 TC 1
JOLIET* PTCLDY 37 33 84 W3 29.88R TC 3
WAUKEGAN CLEAR 36 31 82 W6 29.83R WCI 31 TC 2
DUPAGE AIRPORT CLEAR 35 31 85 W10 29.85R WCI 27 TC 2
WHEELING CLEAR 38 31 76 W6 29.86R WCI 33 TC 3
MORRIS* PTCLDY 35 33 90 W9 29.87R WCI 28 TC 2
ROMEOVILLE* PTCLDY 36 32 87 W6 29.87R WCI 31 TC 2
LANSING* PTCLDY 35 28 77 SW3 29.88R TC 1
NORTHERLY ISL* N/A 38 31 76 W6 N/A WCI 33 TC 3
LMZ740>746-171200-
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 40 250/ 10/ 11 N/A
NORTHERLY ISL 39 230/ 3/ 13 N/A
CALUMET HARBOR 38 190/ 4 1010.5
BURNS HARBOR 39 220/ 5/ 7 1012.2R
MICHIGAN CITY 39 230/ 14/ 15 1011.1R
ILZ025>027-034>036-040-047-049-050-058-095>099-171200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOCLDY 37 33 85 SW7 29.96S WCI 32 TC 3
GALESBURG* CLEAR 37 35 93 W9 29.94S WCI 30 TC 3
MACOMB* PTCLDY 36 32 85 W8 29.98R WCI 30 TC 2
JACKSONVILLE* PTCLDY 38 32 79 SW8 29.96S WCI 32 TC 3
ILZ028>032-037-038-041>044-048-051>054-059>061-171200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 36 32 86 SW6 29.91R WCI 31 TC 2
BLOOMINGTON PTCLDY 37 33 85 W8 29.93R WCI 31 TC 3
DECATUR PTCLDY 37 31 78 SW10 29.95S WCI 30 TC 3
PEORIA PTCLDY 37 32 82 W7 29.94R WCI 32 TC 3
LINCOLN* PTCLDY 37 31 81 W3 29.95R TC 3
SPRINGFIELD PTCLDY 38 33 82 SW7 29.93F WCI 33 TC 3
TAYLORVILLE PTCLDY 36 32 84 S8 29.98F WCI 30 TC 2
ILZ033-039-045-046-055>057-062-063-171200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 34 30 85 SW14 29.93F WCI 25 TC 1
DANVILLE* PTCLDY 38 31 76 SW9 29.95S WCI 31 TC 3
RANTOUL* PTCLDY 37 31 82 SW13 29.92S WCI 28 TC 3
MATTOON PTCLDY 38 27 64 SW10 29.98R WCI 31 TC 3
PARIS* PTCLDY 37 28 71 SW14 29.97S WCI 28 TC 3
ILZ079-100>102-171200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTCLDY 35 26 69 CALM 30.01S TC 2
BELLEVILLE PTCLDY 35 26 70 S3 30.01R TC 1
CAHOKIA* PTCLDY 39 24 55 CALM 30.02R TC 4
SPARTA* PTCLDY 39 25 58 S5 30.05R TC 4
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-171200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOCLDY 41 27 57 S9 30.05S TC 5
CAIRO* CLOUDY 46 29 50 SW7 30.09S TC 8
EFFINGHAM* PTCLDY 38 28 68 S8 30.02S WCI 32 TC 3
MARION MOCLDY 43 25 49 SW7 30.06S TC 6
MT. VERNON MOCLDY N/A N/A N/A SW9 30.05R
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* PTCLDY 41 27 58 SW10 30.02R TC 5
METROPOLIS* CLOUDY 47 23 38 CALM 30.09S TC 9
ILZ067-068-072-073-078-083-087-091-171200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 37 25 61 SW5 30.03R WCI 33 TC 3
FLORA* MOCLDY 41 27 56 SW10 30.03R TC 5
FAIRFIELD* MOCLDY 41 26 54 SW5 30.03S TC 5
HARRISBURG* MOCLDY 43 24 45 SW8 30.06S TC 6
ROBINSON* MOCLDY 39 28 65 SW10 30.01R WCI 32 TC 4
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