491
ASUS43 KLOT 172201
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 PM 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.
ILZ001-002-007-009-015-016-024-172300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 36 29 75 E6 29.89F WCI 31 TC 2
STERLING* CLEAR 35 30 82 SE5 29.92F WCI 31 TC 2
SAVANNA* CLEAR 34 28 78 S8 29.91F WCI 27 TC 1
ILZ003-004-008-010-011-017-018-172300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 34 29 82 S10 29.94S WCI 26 TC 1
FREEPORT* CLEAR 32 29 87 S14 29.91F WCI 22 TC 0
DE KALB* CLEAR 32 29 90 CALM 29.95S TC 0
ILZ005-006-012>014-019>023-172300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 41 30 65 S7 29.93F TC 5
CHICAGO-MIDWAY PTCLDY 40 29 64 SE10 29.96F TC 4
AURORA CLEAR 35 30 82 S9 29.96R HAZE WCI 28
JOLIET* CLEAR 40 32 73 S5 29.99R TC 5
WAUKEGAN CLEAR 36 29 75 SE9 29.93F WCI 29 TC 2
DUPAGE AIRPORT CLEAR 38 30 73 S10 29.94S WCI 31 TC 3
WHEELING CLEAR 40 30 67 SE7 29.95F TC 4
MORRIS* CLEAR 38 33 81 S7 29.98R WCI 33 TC 4
ROMEOVILLE* CLEAR 39 32 75 S12 29.98R WCI 32 TC 4
LANSING* CLEAR 41 27 58 S13 29.97S TC 5
LMZ740>746-172300-
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 38 140/ 11/ 12 N/A
NORTHERLY ISL 36 140/ 3/ 5 N/A
CALUMET HARBOR 36 90/ 6/ 7 1014.3
BURNS HARBOR 39 60/ 3/ 4 1015.6F
MICHIGAN CITY 40 140/ 8/ 10 1015.0F
ILZ025>027-034>036-040-047-049-050-058-095>099-172300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 47 35 63 SE7 29.89F TC 8
GALESBURG* CLEAR 38 34 85 SE5 29.91F WCI 35 TC 4
MACOMB* CLEAR 36 31 84 SE7 29.93F WCI 30 TC 2
ILZ028>032-037-038-041>044-048-051>054-059>061-172300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 35 32 87 SE5 29.98F WCI 31 TC 2
BLOOMINGTON CLEAR 37 32 82 SE6 29.97F WCI 32 TC 3
DECATUR CLEAR 40 33 76 SE7 29.97F TC 4
PEORIA CLEAR 38 31 76 S6 29.95F WCI 33 TC 3
LACON* CLEAR 37 30 75 SE5 29.95F WCI 34 TC 3
LINCOLN* CLEAR 36 29 74 SE5 29.97S WCI 32 TC 2
SPRINGFIELD CLEAR 41 33 73 SE9 29.96F TC 5
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-172300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 35 32 88 E6 29.98F WCI 30 TC 2
DANVILLE* PTCLDY 39 32 75 SE6 30.01S WCI 35 TC 4
RANTOUL* PTCLDY 37 32 84 SE6 29.98F WCI 32 TC 3
MATTOON PTCLDY 42 32 67 SE7 29.99S TC 6
PARIS* PTCLDY 36 31 82 SE5 30.01S WCI 32 TC 2
ILZ079-100>102-172300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 54 34 47 SE8 29.96F TC 12
BELLEVILLE PTCLDY 52 32 46 S9 29.95F TC 11
CAHOKIA* PTCLDY 55 35 47 SE9 29.95F TC 13
SPARTA* PTCLDY 55 36 47 SE5 29.99S TC 13
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-172300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 57 40 52 S14 29.99F TC 14
CAIRO* CLOUDY 56 39 53 CALM 30.04R TC 13
EFFINGHAM* MOCLDY 47 37 67 E7 30.00F TC 9
MARION CLOUDY 57 37 47 S9 29.99F TC 14
MT. VERNON MOCLDY N/A N/A N/A CALM 30.00F
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* MOCLDY 56 36 46 S3 29.99F TC 13
METROPOLIS* CLOUDY 57 35 43 CALM 30.03R TC 14
ILZ067-068-072-073-078-083-087-091-172300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 49 41 74 S8 30.03R TC 9
FLORA* MOCLDY 52 37 58 S9 30.01F TC 11
FAIRFIELD* MOCLDY 54 35 48 E3 30.01S TC 12
HARRISBURG* MOCLDY 57 37 48 S6 30.02R TC 14
ROBINSON* CLOUDY 48 41 76 E5 30.02S TC 9
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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