Regional Weather Roundup
Issued by NWS
Issued by NWS
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054
ASUS43 KLOT 091801
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 PM CST TUE DEC 09 2025
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.
* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
REPORT WEATHER SUCH AS PRECIPITATION OR FOG.
ILZ001-002-007-009-015-016-024-091900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 36 30 79 SW9 29.71F WCI 29 TC 2
6HR MIN TEMP: 27; 6HR MAX TEMP: 36;
STERLING* PTSUNNY 33 29 85 SW12 29.72F WCI 24 TC 1
$$
ILZ003-004-008-010-011-017-018-091900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 31 26 82 SW9 29.72F WCI 23 TC -1
6HR MIN TEMP: 21; 6HR MAX TEMP: 31;
FREEPORT* CLOUDY 31 27 84 W7 29.71F WCI 24 TC -1
DE KALB* PTSUNNY 32 28 86 W14 29.71F WCI 22 TC 0
PERU* PTSUNNY 37 30 77 SW12 29.73F WCI 29 TC 3
$$
ILZ005-006-012>014-019>023-091900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 34 27 75 W17G26 29.71S WCI 23 TC 1
6HR MIN TEMP: 26; 6HR MAX TEMP: 34;
CHICAGO-MIDWAY CLOUDY 35 28 75 W15G26 29.73F WCI 25 TC 2
6HR MIN TEMP: 26; 6HR MAX TEMP: 35;
AURORA PTSUNNY 34 28 79 SW10 29.72F HAZE WCI 26
6HR MIN TEMP: 20; 6HR MAX TEMP: 34;
JOLIET* MOSUNNY 38 31 76 SW9 29.74F WCI 31 TC 3
WAUKEGAN CLOUDY 30 26 85 W13 29.69F WCI 20 TC -1
6HR MIN TEMP: 26; 6HR MAX TEMP: 30;
DUPAGE AIRPORT CLOUDY 32 28 85 SW14 29.72F WCI 22 TC 0
6HR MIN TEMP: 22; 6HR MAX TEMP: 32;
WHEELING CLOUDY 33 27 78 W12G20 29.73S WCI 24 TC 1
6HR MIN TEMP: 26; 6HR MAX TEMP: 33;
MORRIS* PTSUNNY 35 31 86 SW10 29.73F WCI 27 TC 2
ROMEOVILLE* MOSUNNY 36 30 80 SW20 29.74F WCI 25 TC 2
LANSING* PTSUNNY 35 25 67 SW14G21 29.75F WCI 25 TC 1
NORTHERLY ISL* N/A 35 28 76 W12 N/A WCI 27 TC 2
$$
LMZ740>746-091900-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
HARRISON CRIB 34 250/ 19/ 22 N/A
NORTHERLY ISL 35 230/ 14/ 20 N/A
CALUMET HARBOR 35 200/ 11/ 15 1006.4
BURNS HARBOR 35 230/ 8/ 11 1008.1R
MICHIGAN CITY 35 230/ 21/ 25 1006.8F
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-091900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 38 31 76 S14 29.76F WCI 30 TC 3
GALESBURG* PTSUNNY 36 34 94 SW12 29.76F WCI 27 TC 2
MACOMB* PTSUNNY 38 32 78 SW12 29.78F WCI 31 TC 4
JACKSONVILLE* SUNNY 40 30 68 SW10 29.80F TC 4
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-091900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOSUNNY 36 29 77 SW12G17 29.76F WCI 28 TC 2
BLOOMINGTON MOSUNNY 36 30 79 SW22 29.77F WCI 25 TC 2
DECATUR SUNNY 38 30 73 SW16G25 29.83F WCI 29 TC 3
PEORIA PTSUNNY 37 30 75 SW12 29.77F WCI 29 TC 3
6HR MIN TEMP: 25; 6HR MAX TEMP: 38;
LINCOLN* MOSUNNY 41 28 60 SW10 29.81S TC 5
SPRINGFIELD MOSUNNY 39 30 70 SW9 29.81F WCI 33 TC 4
6HR MIN TEMP: 31; 6HR MAX TEMP: 39;
TAYLORVILLE SUNNY 38 31 76 S17G23 29.83F WCI 28 TC 3
6HR MIN TEMP: 32; 6HR MAX TEMP: 38;
$$
ILZ033-039-045-046-055>057-062-063-091900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 35 30 82 SW12 29.82F WCI 27 TC 2
RANTOUL* SUNNY 35 29 80 SW15G25 29.81F WCI 25 TC 2
MATTOON SUNNY 40 31 70 S9G18 29.84F TC 4
PARIS* SUNNY 38 30 73 SW16 29.86F WCI 29 TC 3
$$
ILZ079-100>102-091900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOSUNNY 48 34 57 S14 29.85F TC 9
BELLEVILLE MOSUNNY 49 33 55 SW14 29.85F TC 9
CAHOKIA* PTSUNNY 50 33 52 S12 29.85F TC 10
SPARTA* MOSUNNY 45 32 61 S15 29.91F TC 7
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-091900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 40 33 76 S18 29.96F TC 4
6HR MIN TEMP: 32; 6HR MAX TEMP: 40;
CAIRO* CLOUDY 37 33 85 SW16 30.04F WCI 28 TC 3
EFFINGHAM* SUNNY 45 32 62 S15 29.88F TC 7
MT. VERNON SUNNY N/A N/A N/A SW18 29.91F
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* SUNNY 46 33 61 SW16G24 29.88F TC 8
METROPOLIS* PTSUNNY 38 31 74 S12G17 30.04F WCI 31 TC 3
$$
ILZ067-068-072-073-078-083-087-091-091900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 44 31 60 SW23G30 29.91F TC 7
FLORA* SUNNY 45 32 61 SW17 29.90F TC 7
FAIRFIELD* SUNNY 44 31 60 S18 29.93F TC 7
HARRISBURG* SUNNY 42 31 66 S18 29.96F TC 5
ROBINSON* SUNNY 45 32 61 SW18 29.89F TC 7
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$