917
ASUS43 KLOT 180001
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 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.
ILZ001-002-007-009-015-016-024-180100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 31 28 89 E6 29.85F WCI 25 TC -1
6HR MIN TEMP: 29; 6HR MAX TEMP: 40;
STERLING* CLEAR 27 25 92 E5 29.90F WCI 22 TC -3
SAVANNA* CLEAR 28 24 86 SE7 29.87F WCI 20 TC -2
ILZ003-004-008-010-011-017-018-180100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 29 27 92 SE5 29.91F WCI 24 TC -2
6HR MIN TEMP: 29; 6HR MAX TEMP: 38;
FREEPORT* CLEAR 26 23 90 SE5 29.91R WCI 20 TC -3
DE KALB* CLEAR 30 28 92 CALM 29.91F TC -1
ILZ005-006-012>014-019>023-180100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 37 30 75 S8 29.92F WCI 31 TC 3
6HR MIN TEMP: 37; 6HR MAX TEMP: 43;
CHICAGO-MIDWAY CLEAR 38 32 79 S7 29.94F WCI 33 TC 3
6HR MIN TEMP: 37; 6HR MAX TEMP: 43;
AURORA CLEAR 30 28 92 SE8 29.91S FOG WCI 22
6HR MIN TEMP: 30; 6HR MAX TEMP: 45;
JOLIET* CLEAR 36 33 87 S3 29.94F TC 2
WAUKEGAN CLEAR 35 31 85 S7 29.93R WCI 29 TC 2
6HR MIN TEMP: 34; 6HR MAX TEMP: 39;
DUPAGE AIRPORT CLEAR 34 30 85 S9 29.92S WCI 27 TC 1
6HR MIN TEMP: 33; 6HR MAX TEMP: 40;
WHEELING CLEAR 36 29 75 E3 29.93F TC 2
6HR MIN TEMP: 33; 6HR MAX TEMP: 42;
MORRIS* CLEAR 33 32 96 SE7 29.93S WCI 27 TC 1
ROMEOVILLE* CLEAR 34 30 86 SE7 29.94F WCI 28 TC 1
LANSING* CLEAR 35 28 78 S8 29.95F WCI 28 TC 2
NORTHERLY ISL* N/A 32 30 93 S5 N/A WCI 27 TC 0
LMZ740>746-180100-
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 36 160/ 10/ 11 N/A
NORTHERLY ISL 32 170/ 3/ 6 N/A
CALUMET HARBOR 38 130/ 4 1013.1
BURNS HARBOR 39 170/ 8/ 11 1014.6F
MICHIGAN CITY 38 140/ 7/ 8 1014.0F
ILZ025>027-034>036-040-047-049-050-058-095>099-180100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 40 35 83 SE12 29.85F TC 4
MACOMB* CLEAR 33 30 87 SE7 29.89F WCI 27 TC 1
ILZ028>032-037-038-041>044-048-051>054-059>061-180100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 32 31 95 SE9 29.93F WCI 24 TC 0
BLOOMINGTON CLEAR 34 31 88 SE15 29.93F WCI 24 TC 1
DECATUR CLEAR 37 32 82 SE8 29.94F WCI 31 TC 3
PEORIA CLEAR 36 30 79 S7 29.91F WCI 30 TC 2
6HR MIN TEMP: 36; 6HR MAX TEMP: 42;
LACON* CLEAR 32 29 88 S5 29.90S WCI 28 TC 0
LINCOLN* CLEAR 33 28 83 SE5 29.93S WCI 28 TC 1
SPRINGFIELD CLEAR 36 32 85 SE7 29.91F WCI 30 TC 2
6HR MIN TEMP: 36; 6HR MAX TEMP: 45;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-180100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 31 29 92 SE10 29.95F WCI 22 TC -1
DANVILLE* CLEAR 37 32 82 SE8 29.99F WCI 31 TC 3
RANTOUL* CLEAR 33 30 90 SE7 29.96S WCI 27 TC 1
MATTOON PTCLDY 39 33 79 SE8 29.95F WCI 33 TC 4
PARIS* PTCLDY 38 30 72 SE6 29.98F WCI 34 TC 4
ILZ079-100>102-180100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 41 32 70 SE7 29.91F TC 5
BELLEVILLE PTCLDY 46 30 53 SW2 29.92F TC 8
CAHOKIA* CLEAR 48 35 60 S5 29.90F TC 9
SPARTA* CLOUDY 53 39 58 SE8 29.94F TC 12
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-180100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 54 38 54 S13 29.97F TC 12
6HR MIN TEMP: 54; 6HR MAX TEMP: 60;
CAIRO* CLOUDY 51 47 84 S6 30.02R TC 11
EFFINGHAM* PTCLDY 40 35 79 E6 29.96F TC 5
MARION N/A 54 37 54 S6 29.99F TC 12
MT. VERNON CLOUDY N/A N/A N/A S8 29.96F
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* PTCLDY 50 35 56 SE6 29.94F TC 10
METROPOLIS* CLOUDY 55 40 55 CALM 30.01S TC 13
ILZ067-068-072-073-078-083-087-091-180100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 41 34 76 SE9 29.99F TC 5
FLORA* PTCLDY 39 32 75 SE12 29.96F WCI 32 TC 4
FAIRFIELD* PTCLDY 47 33 59 SE6 29.98F TC 8
HARRISBURG* CLOUDY 51 37 59 S3 30.01F TC 11
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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