892
ASUS43 KLOT 181201
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 AM CST THU DEC 18 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.
ILZ001-002-007-009-015-016-024-181300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 46 43 89 S17G26 29.43F TC 8
6HR MIN TEMP: 43; 6HR MAX TEMP: 46;
STERLING* CLOUDY 43 43 100 VRB7 29.50F FOG TC 6
SAVANNA* CLOUDY 39 37 93 S14 29.45F FOG WCI 31
ILZ003-004-008-010-011-017-018-181300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD FOG 39 38 96 S13 29.51F VSB 1/4 WCI 31
6HR MIN TEMP: 35; 6HR MAX TEMP: 39; 6HR PCP: 0.01;
FREEPORT* CLOUDY 39 37 89 S23 29.48F VSB 1/4 WCI 29
DE KALB* LGT RAIN 37 37 100 S17 29.54F VSB 1/4 WCI 28
PERU* FOG 42 42 100 S17 29.54F VSB 3/4 TC 6
ILZ005-006-012>014-019>023-181300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 44 42 93 S18G31 29.54F TC 7
6HR MIN TEMP: 36; 6HR MAX TEMP: 45; 6HR PCP: 0.01;
CHICAGO-MIDWAY LGT RAIN 45 43 93 S16G29 29.57F FOG TC 7
6HR MIN TEMP: 41; 6HR MAX TEMP: 45; 6HR PCP: 0.05;
AURORA FOG 39 39 100 S16 29.55F VSB 1/4 WCI 30
6HR MIN TEMP: 38; 6HR MAX TEMP: 40; 6HR PCP: 0.01;
JOLIET* CLOUDY 46 46 99 S17G23 29.58F TC 8
WAUKEGAN CLOUDY 43 42 97 S17G25 29.52F TC 6
6HR MIN TEMP: 36; 6HR MAX TEMP: 43; 6HR PCP: TRACE;
DUPAGE AIRPORT FOG 41 41 100 S18G31 29.54F VSB 1 TC 5
6HR MIN TEMP: 36; 6HR MAX TEMP: 43; 6HR PCP: 0.01;
KANKAKEE* CLOUDY 45 43 90 S20G30 29.63F TC 7
WHEELING LGT RAIN 44 43 96 S20G29 29.55F TC 7
6HR MIN TEMP: 35; 6HR MAX TEMP: 45; 6HR PCP: TRACE;
MORRIS* CLOUDY 42 42 100 S16G22 29.56F FOG TC 6
ROMEOVILLE* LGT RAIN 43 43 100 S18G28 29.58F TC 6
LANSING* LGT RAIN 45 40 85 S22G30 29.61F TC 7
NORTHERLY ISL* N/A 45 43 93 S16 N/A TC 7
LMZ740>746-181300-
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 43 190/ 22/ 25 N/A
NORTHERLY ISL 45 180/ 15/ 19 N/A
CALUMET HARBOR 44 170/ 12/ 17 1002.1
BURNS HARBOR 45 180/ 10/ 16 1003.4F
MICHIGAN CITY 45 170/ 19/ 27 1002.7F
ILZ025>027-034>036-040-047-049-050-058-095>099-181300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 54 50 86 S16G23 29.48F TC 12
GALESBURG* CLOUDY 43 43 100 SE9 29.50F TC 6
MACOMB* CLOUDY 42 42 100 S8 29.52S TC 6
JACKSONVILLE* CLOUDY 51 51 99 S14G23 29.55F TC 11
ILZ028>032-037-038-041>044-048-051>054-059>061-181300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 42 42 97 S20 29.58F FOG TC 6
BLOOMINGTON LGT RAIN 43 43 100 S23 29.59F FOG TC 6
DECATUR CLOUDY 48 46 93 S16G26 29.64S TC 9
PEORIA FOG 46 46 100 S15 29.53F VSB 3/4 TC 8
6HR MIN TEMP: 41; 6HR MAX TEMP: 46; 6HR PCP: 0.01;
LACON* CLOUDY 46 44 93 S13G21 29.53S FOG TC 8
LINCOLN* CLOUDY 47 46 93 S16 29.59F FOG TC 9
SPRINGFIELD CLOUDY 51 49 92 S21G28 29.58F TC 11
6HR MIN TEMP: 43; 6HR MAX TEMP: 51; 6HR PCP: 0.03;
TAYLORVILLE CLOUDY 51 48 91 S20G25 29.64S TC 11
6HR MIN TEMP: 47; 6HR MAX TEMP: 51;
ILZ033-039-045-046-055>057-062-063-181300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 43 42 97 S21 29.67F TC 6
DANVILLE* CLOUDY 48 42 80 S21G28 29.70F TC 9
RANTOUL* CLOUDY 40 39 95 S15 29.67S TC 5
MATTOON CLOUDY 49 45 86 S16G29 29.69S TC 9
PARIS* CLOUDY 44 39 82 S16 29.73S TC 7
ILZ079-100>102-181300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 54 50 87 S14G23 29.63F TC 12
BELLEVILLE CLOUDY 53 50 90 S22G28 29.63F TC 12
CAHOKIA* CLOUDY 54 51 90 S10G21 29.62F TC 12
SPARTA* CLOUDY 51 50 95 S15G23 29.70F TC 11
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 53 48 83 S15 29.73F TC 12
6HR MIN TEMP: 50; 6HR MAX TEMP: 53; 6HR PCP: TRACE;
CAIRO* CLOUDY 53 48 81 S10 29.78F TC 12
EFFINGHAM* RAIN 50 48 93 SE9 29.74R TC 10
MARION CLOUDY 53 46 77 S18G24 29.75F TC 12
MT. VERNON CLOUDY N/A N/A N/A S18 29.73F
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* CLOUDY 55 48 79 S14G21 29.71S TC 13
METROPOLIS* CLOUDY 54 43 66 S7 29.81F TC 12
ILZ067-068-072-073-078-083-087-091-181300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 48 40 73 S15 29.78S TC 9
FLORA* CLOUDY 52 45 76 S16 29.74S TC 11
FAIRFIELD* CLOUDY 53 43 69 S15G22 29.75F TC 12
HARRISBURG* CLOUDY 55 44 65 S15G22 29.77F TC 13
ROBINSON* CLOUDY 50 43 76 S15G23 29.75F TC 10
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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