064
ASUS43 KLOT 201501
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 AM CST SAT DEC 20 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.
ILZ001-002-007-009-015-016-024-201600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 38 25 59 SW9 29.74R WCI 31 TC 3
STERLING* PTSUNNY 38 26 62 SW15 29.73R WCI 29 TC 3
ILZ003-004-008-010-011-017-018-201600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 36 25 64 S14G20 29.71R WCI 27 TC 2
ILZ005-006-012>014-019>023-201600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 37 23 56 SW17G30 29.71R WCI 27 TC 3
CHICAGO-MIDWAY PTSUNNY 36 23 59 SW17G33 29.74R WCI 26 TC 2
AURORA PTSUNNY 36 26 67 SW17G24 29.73R WCI 26 TC 2
JOLIET* PTSUNNY 38 27 63 SW12G21 29.76S WCI 31 TC 3
WAUKEGAN PTSUNNY 37 24 59 SW17 29.68R WCI 27 TC 3
DUPAGE AIRPORT PTSUNNY 35 25 66 SW15G24 29.72R WCI 25 TC 2
WHEELING PTSUNNY 37 24 59 SW15G29 29.71R WCI 28 TC 3
MORRIS* PTSUNNY 37 29 70 SW16 29.75R WCI 28 TC 3
ROMEOVILLE* SUNNY 36 25 64 S16G29 29.75S WCI 26 TC 2
LANSING* PTSUNNY 35 20 53 SW18G24 29.76S WCI 25 TC 2
NORTHERLY ISL* N/A 36 23 59 S16 N/A WCI 26 TC 2
LMZ740>746-201600-
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)
NORTHERLY ISL 36 180/ 16/ 21 N/A
CALUMET HARBOR 36 190/ 13/ 19 1006.5
BURNS HARBOR 36 190/ 14/ 18 1007.8S
ILZ025>027-034>036-040-047-049-050-058-095>099-201600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 39 26 59 SW13 29.80R WCI 31 TC 4
JACKSONVILLE* PTSUNNY 38 26 61 S16 29.82R WCI 29 TC 4
ILZ028>032-037-038-041>044-048-051>054-059>061-201600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTSUNNY 37 27 67 S21 29.79S WCI 26 TC 3
DECATUR PTSUNNY 39 25 57 SW20 29.84R WCI 29 TC 4
PEORIA PTSUNNY 37 26 64 SW14 29.79R WCI 28 TC 3
LINCOLN* PTSUNNY 39 25 56 S8G16 29.82R WCI 33 TC 4
SPRINGFIELD PTSUNNY 38 27 64 S14 29.82R WCI 30 TC 3
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-201600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 38 26 62 S20G25 29.84R WCI 28 TC 3
MATTOON MOSUNNY 39 24 55 S16G37 29.87R WCI 30 TC 4
ILZ079-100>102-201600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 41 27 56 S13 29.87R TC 5
BELLEVILLE SUNNY 42 28 56 SW13 29.86R TC 6
CAHOKIA* SUNNY 41 27 57 S7 29.86R TC 5
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE PTSUNNY 46 27 47 S15G29 29.93R TC 8
EFFINGHAM* SUNNY 39 24 55 S10G17 29.90F WCI 32 TC 4
MARION MOSUNNY 45 27 49 SW16 29.94S TC 7
MT. VERNON MOSUNNY 40 25 55 S16 29.91F TC 4
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* SUNNY 43 26 50 S13G21 29.87F TC 6
METROPOLIS* SUNNY 44 26 48 CALM 29.99F TC 7
ILZ067-068-072-073-078-083-087-091-201600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 36 25 64 S18 29.94F WCI 26 TC 2
FAIRFIELD* MOSUNNY 38 25 60 S13 29.92F WCI 30 TC 3
HARRISBURG* MOSUNNY 45 26 47 SW5 29.97R TC 7
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page