435
ASUS43 KLOT 181401
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 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.
ILZ001-002-007-009-015-016-024-181500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 47 46 97 S17G32 29.36F TC 8
STERLING* FOG 45 45 100 S10G20 29.42F VSB 3/4 TC 7
SAVANNA* RAIN 41 40 95 S14 29.38F VSB 1/2 TC 5
ILZ003-004-008-010-011-017-018-181500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD FOG 41 41 100 S16G25 29.44F VSB 1/4 TC 5
FREEPORT* CLOUDY 41 38 89 S22G30 29.40F VSB<1/4 TC 5
DE KALB* RAIN 39 39 100 S16G25 29.48F VSB<1/4 WCI 30
PERU* CLOUDY 46 46 100 S20G26 29.48F FOG TC 8
ILZ005-006-012>014-019>023-181500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE LGT RAIN 46 45 96 S23G35 29.49F FOG TC 8
CHICAGO-MIDWAY LGT RAIN 47 44 90 S24G41 29.53F TC 8
AURORA FOG 41 41 100 S17G28 29.49F VSB<1/4 TC 5
JOLIET* CLOUDY 46 46 100 S17 29.54F TC 8
WAUKEGAN CLOUDY 45 45 100 S22G38 29.45F FOG TC 7
DUPAGE AIRPORT CLOUDY 43 43 100 S24G39 29.48F FOG TC 6
KANKAKEE* CLOUDY 46 43 90 SW16G23 29.60S TC 8
WHEELING CLOUDY 46 45 96 SW18G33 29.50F TC 8
MORRIS* CLOUDY 43 43 100 S16G22 29.52F FOG TC 6
ROMEOVILLE* DRIZZLE 45 45 100 S24G33 29.54F TC 7
LANSING* LGT RAIN 46 40 82 S22G29 29.57F TC 8
NORTHERLY ISL* N/A 47 44 90 S23 N/A TC 8
LMZ740>746-181500-
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 45 200/ 27/ 30 N/A
NORTHERLY ISL 46 170/ 21/ 26 N/A
CALUMET HARBOR 46 170/ 13/ 19 1000.5
BURNS HARBOR 47 200/ 11/ 17 1002.4S
MICHIGAN CITY 46 170/ 20/ 25 1000.6F
ILZ025>027-034>036-040-047-049-050-058-095>099-181500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY LGT RAIN 54 52 93 S16 29.42F TC 12
GALESBURG* CLOUDY N/A N/A N/A S12G17 29.42F HAZE
MACOMB* LGT RAIN 46 46 100 S13 29.45F TC 8
JACKSONVILLE* CLOUDY 52 52 99 S20 29.50F TC 11
ILZ028>032-037-038-041>044-048-051>054-059>061-181500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 45 44 97 S18G25 29.54F FOG TC 7
BLOOMINGTON CLOUDY 45 45 100 S21 29.56F FOG TC 7
DECATUR CLOUDY 50 47 89 S16 29.59F TC 10
PEORIA CLOUDY 48 48 100 S16G25 29.49F FOG TC 9
LACON* CLOUDY 50 47 91 S15G24 29.48F TC 10
LINCOLN* CLOUDY 49 47 93 S16 29.55S TC 10
SPRINGFIELD CLOUDY 51 50 96 S24G40 29.53F TC 11
TAYLORVILLE CLOUDY 51 49 94 S17 29.60R TC 11
ILZ033-039-045-046-055>057-062-063-181500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 44 42 93 S20G30 29.61F TC 7
DANVILLE* CLOUDY 49 44 81 S26G36 29.63F TC 10
RANTOUL* CLOUDY 40 39 96 S16 29.61R TC 5
MATTOON CLOUDY 49 45 86 S18G38 29.62F TC 9
PARIS* CLOUDY 46 42 85 S18G25 29.68F TC 8
ILZ079-100>102-181500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 54 52 94 S17G28 29.60F TC 12
CAHOKIA* CLOUDY 55 52 89 S8 29.60R TC 13
SPARTA* CLOUDY 53 51 94 S17G26 29.63F TC 12
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 53 49 86 S18 29.68F TC 12
CAIRO* CLOUDY 54 50 87 SE16 29.71F TC 12
EFFINGHAM* CLOUDY 50 48 90 SE13G20 29.66F TC 10
MARION CLOUDY 52 50 93 S17 29.70F TC 11
MT. VERNON CLOUDY N/A N/A N/A S16G24 29.68F
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* CLOUDY 56 50 80 S16G26 29.63F TC 13
METROPOLIS* CLOUDY 54 46 74 CALM 29.76F TC 12
ILZ067-068-072-073-078-083-087-091-181500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE LGT RAIN 49 41 74 S20 29.74F TC 9
FLORA* CLOUDY 52 46 82 S22 29.68F TC 11
FAIRFIELD* DRIZZLE 53 47 82 S13 29.72F TC 12
HARRISBURG* LGT RAIN 51 48 89 S10 29.74F TC 11
ROBINSON* CLOUDY 50 43 76 S18G26 29.71F TC 10
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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