Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 042101
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 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.
ILZ001-002-007-009-015-016-024-042200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 13 0 56 SE5 30.34F WCI 5 TC -11
STERLING* SUNNY 12 -1 56 SW5 30.36S WCI 4 TC -11
$$
ILZ003-004-008-010-011-017-018-042200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 13 -3 49 SW5 30.33F WCI 5 TC -11
DE KALB* SUNNY 14 0 54 CALM 30.31F TC -10
$$
ILZ005-006-012>014-019>023-042200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 20 -6 31 CALM 30.31F TC -7
CHICAGO-MIDWAY MOSUNNY 21 10 62 N3 30.32F TC -6
AURORA SUNNY 8 1 73 NW6 30.32F WCI -2 TC -13
JOLIET* SUNNY 21 2 44 CALM 30.34S TC -6
WAUKEGAN SUNNY 18 -12 26 CALM 30.31F TC -8
DUPAGE AIRPORT SUNNY 18 -5 36 CALM 30.31F TC -8
WHEELING SUNNY 20 -8 28 CALM 30.33F TC -7
MORRIS* SUNNY 12 2 65 NW3 30.33F TC -11
ROMEOVILLE* SUNNY 19 -2 38 NW5 30.32F WCI 13 TC -7
LANSING* SUNNY 24 10 54 N5 30.32S WCI 18 TC -5
NORTHERLY ISL* N/A 21 13 71 MISG N/A TC -6
$$
LMZ740>746-042200-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
S. MID LAKE BUOY 22 44 240/ 2/ 4 1027.7F
HARRISON CRIB 22 340/ 9/ 11 N/A
NORTHERLY ISL 24 360/ 5/ 7 N/A
CALUMET HARBOR 22 330/ 4/ 6 1026.1F
BURNS HARBOR 27 CALM / 4 1026.8F
MICHIGAN CITY 26 10/ 5/ 7 1026.7F
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-042200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 19 5 54 NW3 30.33F TC -7
MACOMB* SUNNY 13 4 68 CALM 30.36F TC -10
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-042200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC SUNNY 13 1 58 CALM 30.34F TC -10
BLOOMINGTON SUNNY 21 4 47 NE6 30.33S WCI 13 TC -6
DECATUR SUNNY 18 4 54 N6 30.32F WCI 10 TC -8
PEORIA SUNNY 20 -2 38 CALM 30.34F TC -7
LACON* SUNNY 14 2 59 CALM 30.35S TC -10
LINCOLN* SUNNY 17 -1 45 N3 30.35F TC -8
SPRINGFIELD SUNNY 16 2 54 NE6 30.34F WCI 7 TC -9
TAYLORVILLE NOT AVBL
$$
ILZ033-039-045-046-055>057-062-063-042200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 17 9 70 N7 30.32S WCI 8 TC -8
RANTOUL* SUNNY 15 6 66 N6 30.33S WCI 7 TC -9
MATTOON SUNNY 17 8 67 N8 30.30F WCI 7 TC -8
PARIS* SUNNY 22 12 64 NW7 30.31S WCI 14 TC -5
$$
ILZ079-100>102-042200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 21 7 53 N9 30.33F WCI 11 TC -6
BELLEVILLE MOSUNNY 24 11 57 N6 30.32R WCI 17 TC -4
CAHOKIA* SUNNY 25 11 55 NE8 30.32S WCI 16 TC -4
SPARTA* PTSUNNY 25 14 63 N7 30.30F WCI 17 TC -4
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-042200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE PTSUNNY 29 17 61 N9 30.26F WCI 20 TC -2
EFFINGHAM* MOSUNNY 23 11 61 N5 30.32F WCI 16 TC -5
MARION MOSUNNY 30 19 64 N6 30.25F WCI 24 TC -1
MT. VERNON PTSUNNY N/A N/A N/A NE7 30.28F
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* MOSUNNY 24 14 64 N6 30.30S WCI 17 TC -4
METROPOLIS* CLOUDY 32 21 63 CALM 30.25F TC 0
$$
ILZ067-068-072-073-078-083-087-091-042200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTSUNNY 29 19 66 N9 30.29F WCI 20 TC -2
FLORA* PTSUNNY 25 16 68 N10 30.30F WCI 15 TC -4
FAIRFIELD* CLOUDY 28 19 70 N7 30.29F WCI 20 TC -2
HARRISBURG* CLOUDY 31 19 63 N8 30.27F WCI 23 TC -1
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$