799
ASUS43 KLOT 151601
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 AM CST MON DEC 15 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.
ILZ001-002-007-009-015-016-024-151700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 17 6 62 SW14G23 30.15F WCI 3 TC -8
STERLING* MOSUNNY 14 6 70 VRB5 30.19F WCI 6 TC -10
SAVANNA* MOSUNNY 15 7 71 S7 30.17S WCI 5 TC -10
ILZ003-004-008-010-011-017-018-151700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 12 3 67 S10 30.19F WCI -1 TC -11
FREEPORT* MOSUNNY 12 4 70 S12 30.17F WCI -2 TC -11
DE KALB* MOSUNNY 11 4 73 S21G26 30.19S WCI -7 TC -11
PERU* MOSUNNY 14 5 67 S12 30.20S WCI 1 TC -10
ILZ005-006-012>014-019>023-151700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 13 0 56 S13 30.21F WCI -2 TC -11
CHICAGO-MIDWAY PTSUNNY 12 0 58 S14G22 30.23F WCI -3 TC -11
AURORA PTSUNNY 13 4 67 S12 30.21S WCI -1 TC -11
JOLIET* MOSUNNY 17 6 63 SW14G21 30.23F WCI 2 TC -9
WAUKEGAN PTSUNNY 14 2 58 SW18G26 30.17F WCI -3 TC -10
DUPAGE AIRPORT MOSUNNY 11 2 67 S13G24 30.21S WCI -4 TC -12
WHEELING PTSUNNY 14 2 58 SW15 30.22F WCI -1 TC -10
MORRIS* MOSUNNY 13 6 73 S16G22 30.22F WCI -3 TC -10
ROMEOVILLE* SUNNY 12 3 67 S16 30.24F WCI -4 TC -11
LANSING* PTSUNNY 11 -3 52 S17 30.27F WCI -6 TC -12
NORTHERLY ISL* N/A 12 0 58 S14 N/A WCI -3 TC -11
LMZ740>746-151700-
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 12 190/ 20/ 23 N/A
NORTHERLY ISL 10 190/ 11/ 17 N/A
CALUMET HARBOR 10 180/ 12/ 16 1024.0F
BURNS HARBOR 11 180/ 8/ 14 1025.4F
MICHIGAN CITY 9 180/ 14/ 16 1027.1S
ILZ025>027-034>036-040-047-049-050-058-095>099-151700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 23 10 57 SW22G32 30.20F WCI 8 TC -5
GALESBURG* SUNNY 16 11 80 S16G22 30.18S WCI 0 TC -9
MACOMB* SUNNY 19 8 61 S16 30.20F WCI 4 TC -7
JACKSONVILLE* SUNNY 18 6 59 S20 30.26F WCI 2 TC -8
ILZ028>032-037-038-041>044-048-051>054-059>061-151700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOSUNNY 13 4 64 S21 30.24F WCI -5 TC -10
BLOOMINGTON MOSUNNY 14 7 73 S21 30.23F WCI -4 TC -10
DECATUR MOSUNNY 14 5 67 S21G29 30.30F WCI -4 TC -10
PEORIA SUNNY 14 6 70 S18 30.22F WCI -3 TC -10
LINCOLN* SNOW 15 3 60 S21 30.26F VSB 1/4 WCI -3
SPRINGFIELD SUNNY 15 6 67 S16G26 30.28F WCI -1 TC -9
TAYLORVILLE MOSUNNY 15 7 69 S23G29 30.31F WCI -3 TC -9
ILZ033-039-045-046-055>057-062-063-151700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 10 2 69 S22 30.32F WCI -10 TC -12
DANVILLE* MOSUNNY 12 0 58 S16G25 30.35F WCI -4 TC -11
RANTOUL* MOSUNNY 9 2 73 S21 30.30F HAZE WCI -10
MATTOON MOSUNNY 13 3 64 S17G31 30.33F WCI -4 TC -11
PARIS* MOSUNNY 11 1 62 S18 30.39F WCI -7 TC -12
ILZ079-100>102-151700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 21 7 53 S14G23 30.36F WCI 8 TC -6
BELLEVILLE SUNNY 22 8 53 S14 30.39F WCI 10 TC -5
CAHOKIA* SUNNY 23 5 46 S14G21 30.38 WCI 11 TC -5
SPARTA* SUNNY 20 6 54 S12G18 30.44F WCI 9 TC -6
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-151700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 21 6 52 S10 30.47F WCI 10 TC -6
EFFINGHAM* MOSUNNY 17 4 57 S8 30.42F WCI 7 TC -8
MARION SUNNY 19 7 58 S9 30.47F WCI 9 TC -7
MT. VERNON SUNNY N/A N/A N/A SW14 30.44F
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* SUNNY 21 7 54 S14 30.41F WCI 8 TC -6
METROPOLIS* SUNNY 21 6 52 CALM 30.51F TC -6
ILZ067-068-072-073-078-083-087-091-151700-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 16 5 62 S9 30.47F WCI 4 TC -9
FLORA* SUNNY 19 9 63 S16 30.43F WCI 5 TC -7
FAIRFIELD* SUNNY 19 7 61 S12 30.46F WCI 6 TC -7
HARRISBURG* SUNNY 22 7 52 SW8 30.49F WCI 12 TC -6
ROBINSON* MOSUNNY 14 5 67 S12 30.44F WCI 0 TC -10
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