478
ASUS43 KLOT 181006
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 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.
ILZ001-002-007-009-015-016-024-181100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 43 39 86 S15 29.51F TC 6
STERLING* CLOUDY 41 41 100 VRB5 29.57F FOG TC 5
SAVANNA* CLOUDY 37 34 87 S13 29.51F WCI 29 TC 3
ILZ003-004-008-010-011-017-018-181100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD LGT RAIN 38 36 92 S15G25 29.58F FOG WCI 29
FREEPORT* CLOUDY 38 35 90 S21 29.54F WCI 27 TC 3
DE KALB* LGT RAIN 37 35 95 S14 29.62F WCI 28 TC 3
PERU* FOG 42 41 99 S15 29.61S VSB 3/4 TC 5
ILZ005-006-012>014-019>023-181100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 45 40 82 S13G32 29.63S TC 7
CHICAGO-MIDWAY CLOUDY 45 41 86 S18G30 29.65R TC 7
AURORA LGT RAIN 38 37 97 S9 29.63S FOG WCI 31
JOLIET* CLOUDY 45 43 93 S16G24 29.64F TC 7
WAUKEGAN CLOUDY 42 38 85 S14 29.61F TC 6
DUPAGE AIRPORT LGT RAIN 41 40 96 S15G29 29.63R TC 5
KANKAKEE* CLOUDY 43 39 85 S17G29 29.68S TC 6
WHEELING CLOUDY 45 40 82 S14 29.65R TC 7
MORRIS* CLOUDY 41 41 99 S16 29.63F TC 5
ROMEOVILLE* CLOUDY 43 41 93 S21G30 29.65S TC 6
LANSING* CLOUDY 42 36 78 S14G21 29.67F TC 6
NORTHERLY ISL* N/A 45 40 82 S13 N/A TC 7
LMZ740>746-181100-
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 44 190/ 22/ 24 N/A
NORTHERLY ISL 44 190/ 12/ 20 N/A
CALUMET HARBOR 44 180/ 11/ 19 1003.9
BURNS HARBOR 44 180/ 11/ 16 1005.4F
MICHIGAN CITY 44 170/ 15/ 22 1004.5F
ILZ025>027-034>036-040-047-049-050-058-095>099-181100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 52 49 89 S15G23 29.54F TC 11
GALESBURG* CLOUDY 42 42 100 S12 29.56F TC 6
MACOMB* CLOUDY 41 40 97 S16 29.57F TC 5
JACKSONVILLE* CLOUDY 51 50 98 S20G29 29.60F TC 10
ILZ028>032-037-038-041>044-048-051>054-059>061-181100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 42 41 97 S21G26 29.64F FOG TC 6
BLOOMINGTON FOG 41 41 100 S20 29.63F VSB 1/4 TC 5
DECATUR CLOUDY 47 45 93 S17G28 29.67F TC 8
PEORIA FOG 44 44 100 S17G25 29.60S VSB 1 TC 7
LACON* CLOUDY 45 43 93 S14G22 29.59F FOG TC 7
LINCOLN* LGT RAIN 44 42 94 S13G18 29.62F VSB 1/2 TC 7
SPRINGFIELD CLOUDY 50 48 93 S22G44 29.61F TC 10
TAYLORVILLE CLOUDY 50 48 93 S21G30 29.65F TC 10
ILZ033-039-045-046-055>057-062-063-181100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 41 40 96 S18 29.69F TC 5
DANVILLE* CLOUDY 47 41 81 S20G25 29.73F TC 8
RANTOUL* CLOUDY 38 37 94 S14 29.69F WCI 30 TC 3
MATTOON CLOUDY 49 45 86 S15G33 29.72F TC 9
PARIS* CLOUDY 42 38 84 S17 29.74F TC 6
ILZ079-100>102-181100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 54 49 86 S17G28 29.65F TC 12
BELLEVILLE CLOUDY 53 50 90 S18 29.68F TC 12
CAHOKIA* CLOUDY 53 50 89 S17 29.65F TC 12
SPARTA* CLOUDY 52 49 90 S15G28 29.73F TC 11
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 53 47 79 S15G26 29.77F TC 12
CAIRO* CLOUDY 54 44 69 S13 29.82F TC 12
EFFINGHAM* CLOUDY 51 47 88 SE12G18 29.76F TC 11
MARION DRIZZLE 51 46 82 S12 29.79F TC 11
MT. VERNON CLOUDY N/A N/A N/A S17 29.77F
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* CLOUDY 53 47 80 S15G24 29.74F TC 12
METROPOLIS* CLOUDY 54 40 59 CALM 29.84F TC 12
ILZ067-068-072-073-078-083-087-091-181100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 49 41 74 S16 29.81F TC 9
FLORA* CLOUDY 50 46 87 S17 29.77F TC 10
FAIRFIELD* CLOUDY 53 44 73 S12 29.80F TC 11
HARRISBURG* CLOUDY 54 42 66 S13G18 29.81F TC 12
ROBINSON* MOCLDY 50 43 76 S16 29.78F TC 10
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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