240
ASUS43 KLOT 201801
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 PM 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.
ILZ001-002-007-009-015-016-024-201900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 39 26 59 NW16G24 29.83R WCI 30 TC 4
6HR MIN TEMP: 36; 6HR MAX TEMP: 41;
STERLING* PTSUNNY 40 27 59 NW9 29.79S TC 4
SAVANNA* PTSUNNY 38 26 60 W6 29.80S WCI 34 TC 4
ILZ003-004-008-010-011-017-018-201900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 40 26 57 W13 29.76R TC 4
6HR MIN TEMP: 32; 6HR MAX TEMP: 41;
FREEPORT* PTSUNNY 39 27 62 W7 29.78R WCI 34 TC 4
DE KALB* PTSUNNY 37 28 71 W7 29.75S WCI 31 TC 3
PERU* PTSUNNY 41 28 58 W12 29.78S TC 5
ILZ005-006-012>014-019>023-201900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 39 25 57 W21G30 29.73S WCI 29 TC 4
6HR MIN TEMP: 32; 6HR MAX TEMP: 39; 6HR PCP: TRACE;
CHICAGO-MIDWAY CLOUDY 41 26 55 W17G29 29.76R TC 5
6HR MIN TEMP: 32; 6HR MAX TEMP: 41;
AURORA PTSUNNY 39 27 62 W14 29.74R WCI 31 TC 4
6HR MIN TEMP: 32; 6HR MAX TEMP: 39;
JOLIET* PTSUNNY 43 29 58 W12G21 29.76S TC 6
WAUKEGAN PTSUNNY 39 25 57 W15G23 29.69F WCI 31 TC 4
6HR MIN TEMP: 31; 6HR MAX TEMP: 40;
DUPAGE AIRPORT PTSUNNY 38 27 64 W15G29 29.74R WCI 29 TC 3
6HR MIN TEMP: 32; 6HR MAX TEMP: 38;
KANKAKEE* PTSUNNY 41 30 64 SW17 29.79S TC 5
WHEELING CLOUDY 39 26 59 W12G22 29.74S WCI 32 TC 4
6HR MIN TEMP: 32; 6HR MAX TEMP: 40;
MORRIS* PTSUNNY 41 31 67 W17G23 29.75S TC 5
ROMEOVILLE* SUNNY 41 28 60 SW16G29 29.76S TC 5
LANSING* PTSUNNY 41 24 50 SW15G21 29.75F TC 5
NORTHERLY ISL* N/A 40 25 55 W12 N/A TC 4
LMZ740>746-201900-
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 39 250/ 8/ 18 N/A
CALUMET HARBOR 40 210/ 9/ 16 1006.4F
BURNS HARBOR 41 220/ 9/ 13 1008.1F
ILZ025>027-034>036-040-047-049-050-058-095>099-201900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 46 28 49 NW20 29.86R TC 8
GALESBURG* PTSUNNY 40 32 74 W12G17 29.85R TC 4
MACOMB* PTSUNNY 41 30 64 W15 29.87R TC 5
JACKSONVILLE* PTSUNNY 46 29 52 W8 29.82S TC 8
ILZ028>032-037-038-041>044-048-051>054-059>061-201900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 42 31 64 SW15 29.78F TC 6
BLOOMINGTON PTSUNNY 44 30 57 W16G24 29.79F TC 7
DECATUR MOSUNNY 46 30 53 SW15 29.81F TC 8
PEORIA PTSUNNY 43 27 53 W13G22 29.81F TC 6
6HR MIN TEMP: 34; 6HR MAX TEMP: 43;
LACON* PTSUNNY 42 26 53 W9G18 29.80R TC 5
LINCOLN* PTSUNNY 47 26 44 W9 29.81F TC 8
SPRINGFIELD PTSUNNY 45 32 60 W14 29.82F TC 7
6HR MIN TEMP: 36; 6HR MAX TEMP: 46;
TAYLORVILLE MOSUNNY 45 33 63 SW13 29.82F TC 7
6HR MIN TEMP: 34; 6HR MAX TEMP: 45;
ILZ033-039-045-046-055>057-062-063-201900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 46 32 58 SW22G29 29.81F TC 8
DANVILLE* PTSUNNY 45 31 58 SW15 29.82F TC 7
RANTOUL* PTSUNNY 43 31 64 SW16 29.80F TC 6
MATTOON SUNNY 46 29 51 S17G29 29.82F TC 8
PARIS* MOSUNNY 46 31 55 SW18 29.84F TC 8
ILZ079-100>102-201900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 50 30 46 SW9 29.85F TC 10
BELLEVILLE SUNNY 54 31 42 SW13 29.84F TC 12
CAHOKIA* SUNNY 53 30 41 SW12G20 29.85F TC 12
SPARTA* MOSUNNY 50 31 48 S15 29.88F TC 10
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE PTSUNNY 52 32 46 SW16G26 29.89F TC 11
6HR MIN TEMP: 35; 6HR MAX TEMP: 52;
CAIRO* PTSUNNY 56 37 48 SW14G21 29.95R TC 13
EFFINGHAM* MOSUNNY 51 31 45 S13 29.87F TC 11
MARION MOSUNNY 54 32 43 S20G30 29.90F TC 12
MT. VERNON MOSUNNY 53 32 44 S20 29.87F TC 12
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* MOSUNNY 52 32 45 SW18 29.86F TC 11
METROPOLIS* MOSUNNY 56 31 38 S13G22 29.95S TC 13
ILZ067-068-072-073-078-083-087-091-201900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 46 32 58 S15 29.89F TC 8
FLORA* MOSUNNY 50 32 50 S13 29.87F TC 10
FAIRFIELD* PTSUNNY 51 32 48 SW15 29.89F TC 11
HARRISBURG* PTSUNNY 54 31 40 SW17 29.92F TC 12
ROBINSON* PTSUNNY 46 32 57 S13 29.87F TC 8
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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