Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 042001
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 PM CST THU DEC 04 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.
ILZ001-002-007-009-015-016-024-042100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 15 -1 49 CALM 30.36F TC -9
STERLING* SUNNY 12 -1 56 E3 30.36F TC -11
$$
ILZ003-004-008-010-011-017-018-042100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 13 -2 51 SW3 30.36F TC -11
DE KALB* SUNNY 13 -2 51 CALM 30.33F TC -11
PERU* SUNNY 12 -1 57 CALM 30.36F TC -11
$$
ILZ005-006-012>014-019>023-042100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 18 -5 36 N5 30.33F WCI 11 TC -8
CHICAGO-MIDWAY MOSUNNY 21 10 62 N6 30.33F WCI 13 TC -6
AURORA SUNNY 10 2 69 NW5 30.33F WCI 2 TC -12
JOLIET* SUNNY 20 2 46 N5 30.34F WCI 13 TC -7
WAUKEGAN SUNNY 17 -10 29 CALM 30.33F TC -8
DUPAGE AIRPORT SUNNY 17 -6 35 CALM 30.32F TC -8
WHEELING SUNNY 19 -8 30 CALM 30.35F TC -7
MORRIS* SUNNY 13 3 65 NW3 30.34F TC -11
ROMEOVILLE* SUNNY 19 -4 35 NW5 30.34F WCI 13 TC -7
LANSING* SUNNY 24 9 53 CALM 30.33F TC -5
NORTHERLY ISL* N/A 24 13 62 N7 N/A WCI 16 TC -4
$$
LMZ740>746-042100-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
S. MID LAKE BUOY 21 44 290/ 2/ 6 1028.6F
HARRISON CRIB 21 330/ 9/ 11 N/A
NORTHERLY ISL 24 350/ 4/ 8 N/A
CALUMET HARBOR 22 320/ 6/ 8 1026.6
BURNS HARBOR 26 50/ 2/ 5 1027.1F
MICHIGAN CITY 25 20/ 3/ 6 1027.8
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-042100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 17 6 62 NW3 30.35F TC -8
GALESBURG* SUNNY 15 8 72 CALM 30.36F TC -9
MACOMB* SUNNY 14 4 64 CALM 30.38F TC -10
JACKSONVILLE* SUNNY 17 1 50 NE3 30.36F TC -8
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-042100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC SUNNY 13 1 58 NW5 30.36S WCI 5 TC -10
BLOOMINGTON SUNNY 24 5 44 NE7 30.33F WCI 16 TC -4
DECATUR SUNNY 18 4 54 NE6 30.33F WCI 10 TC -8
PEORIA SUNNY 20 -1 40 CALM 30.35F TC -7
LACON* SUNNY 15 -1 50 S3 30.37S TC -10
LINCOLN* SUNNY 16 -1 46 N5 30.36F WCI 9 TC -9
SPRINGFIELD SUNNY 17 2 51 N6 30.35F WCI 9 TC -8
TAYLORVILLE SUNNY 16 4 59 N8 30.35S WCI 5 TC -9
$$
ILZ033-039-045-046-055>057-062-063-042100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 19 9 65 N7 30.32F WCI 10 TC -7
RANTOUL* SUNNY 16 7 66 N5 30.33S WCI 9 TC -9
MATTOON SUNNY 17 7 64 N10 30.31F WCI 5 TC -8
PARIS* SUNNY 24 11 56 N5 30.32S WCI 18 TC -4
$$
ILZ079-100>102-042100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 21 3 45 NE7 30.34F WCI 13 TC -6
BELLEVILLE MOSUNNY 24 11 58 N7 30.31F WCI 16 TC -4
CAHOKIA* MOSUNNY 25 11 55 N6 30.32F WCI 18 TC -4
SPARTA* PTSUNNY 24 13 63 N7 30.32F WCI 16 TC -4
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-042100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 29 18 63 N8 30.31F WCI 21 TC -2
CAIRO* PTSUNNY 33 24 71 NE8 30.27F WCI 25 TC 0
EFFINGHAM* MOSUNNY 23 11 61 NW5 30.34F WCI 17 TC -5
MARION MOSUNNY 30 19 64 N6 30.30F WCI 24 TC -1
MT. VERNON PTSUNNY N/A N/A N/A N8 30.31F
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* MOSUNNY 24 14 65 N6 30.31F WCI 17 TC -4
METROPOLIS* PTSUNNY 33 21 61 CALM 30.28F TC 0
$$
ILZ067-068-072-073-078-083-087-091-042100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 29 19 66 N9 30.30F WCI 20 TC -2
FLORA* PTSUNNY 23 16 74 N7 30.32F WCI 15 TC -5
FAIRFIELD* CLOUDY 27 19 70 N8 30.31F WCI 19 TC -3
HARRISBURG* PTSUNNY 31 19 61 N7 30.30F WCI 24 TC -1
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$