817
ASUS43 KLOT 200901
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 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.
ILZ001-002-007-009-015-016-024-201000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 35 19 52 S16G25 29.69F WCI 25 TC 2
STERLING* MOCLDY 33 20 58 S10G18 29.75F WCI 25 TC 1
SAVANNA* MOCLDY 32 20 61 S14 29.71F WCI 22 TC 0
ILZ003-004-008-010-011-017-018-201000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 29 19 66 S16G24 29.76F WCI 17 TC -2
FREEPORT* CLOUDY 30 21 68 S21G29 29.72F WCI 17 TC -1
DE KALB* MOCLDY 26 20 80 S12G20 29.79F WCI 15 TC -3
PERU* PTCLDY 32 22 67 S21G26 29.78F WCI 19 TC 0
ILZ005-006-012>014-019>023-201000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 28 17 63 S17G28 29.82F WCI 16 TC -2
CHICAGO-MIDWAY CLOUDY 28 18 66 S15G25 29.84F WCI 16 TC -2
AURORA MOCLDY 27 20 75 S17 29.81F WCI 14 TC -3
JOLIET* MOCLDY 31 21 67 S13 29.84F WCI 21 TC -1
WAUKEGAN CLOUDY 27 17 66 S15G24 29.80F WCI 15 TC -3
DUPAGE AIRPORT MOCLDY 28 19 69 S16G25 29.81F WCI 16 TC -2
WHEELING CLOUDY 28 18 66 S16 29.84F WCI 16 TC -2
MORRIS* PTCLDY 28 22 80 S12 29.83F WCI 17 TC -2
LANSING* MOCLDY 27 15 62 S16G23 29.89F WCI 14 TC -3
NORTHERLY ISL* N/A 28 18 66 SW13 N/A WCI 18 TC -2
LMZ740>746-201000-
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 27 210/ 11/ 12 N/A
CALUMET HARBOR 28 160/ 12/ 18 1011.7F
BURNS HARBOR 27 180/ 8/ 11 1013.5S
ILZ025>027-034>036-040-047-049-050-058-095>099-201000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 37 20 50 S16G30 29.76F WCI 28 TC 3
GALESBURG* PTCLDY 31 26 81 S13G18 29.75F WCI 21 TC -1
MACOMB* PTCLDY 32 22 67 S15 29.79F WCI 21 TC 0
JACKSONVILLE* CLEAR 35 22 58 S14G21 29.83F WCI 25 TC 2
ILZ028>032-037-038-041>044-048-051>054-059>061-201000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 29 20 69 S17G24 29.85F WCI 17 TC -1
BLOOMINGTON PTCLDY 29 23 78 S17 29.86F WCI 17 TC -2
DECATUR PTCLDY 32 22 66 S16 29.90F WCI 21 TC 0
PEORIA PTCLDY 30 22 72 S14 29.81F WCI 19 TC -1
LACON* PTCLDY 33 19 57 S15G23 29.80F WCI 23 TC 1
LINCOLN* PTCLDY 32 20 62 S14 29.88F WCI 22 TC 0
SPRINGFIELD CLEAR 34 23 64 S24G38 29.86F WCI 21 TC 1
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-201000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 29 21 72 S18 29.92F WCI 16 TC -2
DANVILLE* MOCLDY 29 21 71 S15G22 29.97S WCI 18 TC -1
RANTOUL* PTCLDY 28 21 75 S15 29.93F WCI 16 TC -2
MATTOON PTCLDY 30 21 69 S16 29.95F WCI 19 TC -1
PARIS* PTCLDY 28 20 72 S13 29.99F WCI 18 TC -2
ILZ079-100>102-201000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTCLDY 38 23 55 S15 29.89F WCI 29 TC 3
BELLEVILLE MOCLDY 37 24 60 SW14 29.91F WCI 28 TC 3
CAHOKIA* MOCLDY 34 23 64 S8 29.90F WCI 27 TC 1
SPARTA* PTCLDY 38 23 55 S14G22 29.97F WCI 30 TC 3
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 33 23 66 SE7 30.01F WCI 27 TC 1
CAIRO* CLEAR 37 25 62 S9 30.05F WCI 30 TC 3
EFFINGHAM* PTCLDY 30 22 73 SE10 30.00F WCI 21 TC -1
MT. VERNON PTCLDY 34 21 59 S12 30.00F WCI 25 TC 1
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* MOCLDY 36 22 55 S12 29.97F WCI 28 TC 2
METROPOLIS* CLEAR 33 19 58 CALM 30.08S TC 0
ILZ067-068-072-073-078-083-087-091-201000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 28 22 78 S9 30.03F WCI 19 TC -2
FLORA* MOCLDY 30 23 74 S13 30.01F WCI 20 TC -1
FAIRFIELD* PTCLDY 31 22 69 S8 30.03F WCI 23 TC -1
HARRISBURG* PTCLDY 29 22 76 S6 30.05F WCI 23 TC -2
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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