648
ASUS43 KLOT 210901
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 AM CST SUN DEC 21 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.
ILZ001-002-007-009-015-016-024-211000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 23 10 57 NW8 30.32R WCI 14 TC -5
STERLING* CLEAR 21 12 68 N3 30.31R TC -6
SAVANNA* CLEAR 20 9 62 NW7 30.31R WCI 11 TC -7
ILZ003-004-008-010-011-017-018-211000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 18 9 68 NW8 30.30R WCI 8 TC -8
FREEPORT* CLEAR 18 7 61 NW9 30.31R WCI 7 TC -8
DE KALB* CLEAR 19 10 69 NW14 30.27R WCI 6 TC -7
ILZ005-006-012>014-019>023-211000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 23 8 52 NW13 30.26R WCI 11 TC -5
CHICAGO-MIDWAY CLEAR 24 10 55 NW10 30.27R WCI 14 TC -4
AURORA CLEAR 20 12 71 NW12 30.27R WCI 8 TC -7
JOLIET* CLEAR 25 12 58 NW9 30.30R WCI 16 TC -4
WAUKEGAN CLEAR 20 5 52 NW7G18 30.25R WCI 11 TC -7
DUPAGE AIRPORT CLEAR 21 11 65 NW13 30.25R WCI 9 TC -6
WHEELING CLEAR 22 9 57 NW8G18 30.27R WCI 12 TC -6
MORRIS* CLEAR 22 16 77 NW3 30.29R TC -6
LANSING* CLEAR 25 6 43 NW7 30.27R WCI 17 TC -4
NORTHERLY ISL* N/A 26 11 52 W7 N/A WCI 19 TC -3
LMZ740>746-211000-
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 26 280/ 10/ 15 N/A
CALUMET HARBOR 26 290/ 6/ 11 1023.9
BURNS HARBOR 29 320/ 10/ 12 1024.4R
ILZ025>027-034>036-040-047-049-050-058-095>099-211000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 27 16 63 CALM 30.32R TC -3
MACOMB* CLEAR 22 17 79 NW5 30.34R WCI 16 TC -5
ILZ028>032-037-038-041>044-048-051>054-059>061-211000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 24 16 69 NW7 30.30R WCI 16 TC -4
BLOOMINGTON CLEAR 26 17 68 NW13 30.30R WCI 15 TC -3
DECATUR PTCLDY 30 18 60 NW10 30.31R WCI 21 TC -1
PEORIA CLEAR 26 16 65 VRB5 30.32R WCI 20 TC -3
LACON* CLEAR 24 11 57 NW3 30.31R TC -4
LINCOLN* CLEAR 28 16 60 CALM 30.33R TC -2
SPRINGFIELD CLEAR 28 18 66 NW5 30.32R WCI 23 TC -2
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-211000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 25 18 74 NW9 30.30R WCI 15 TC -4
DANVILLE* PTCLDY 29 19 67 NW9 30.29R WCI 20 TC -2
RANTOUL* CLEAR 27 19 71 NW9 30.29R WCI 17 TC -3
MATTOON MOCLDY 28 21 75 NW10 30.29R WCI 19 TC -2
PARIS* MOCLDY 29 19 66 NW10 30.30R WCI 20 TC -2
ILZ079-100>102-211000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BELLEVILLE MOCLDY 29 19 65 CALM 30.32R TC -1
CAHOKIA* MOCLDY 29 18 63 CALM 30.34R TC -2
SPARTA* MOCLDY 34 19 52 NW3 30.34R TC 1
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-211000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOCLDY 30 23 75 CALM 30.32R TC -1
CAIRO* MOCLDY 40 26 59 N7 30.31R TC 4
EFFINGHAM* MOCLDY 32 22 67 CALM 30.34R TC 0
MT. VERNON PTCLDY 34 18 52 N5 30.32R WCI 30 TC 1
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* MOCLDY 33 21 62 N5 30.32S WCI 28 TC 1
METROPOLIS* MOCLDY 38 22 53 CALM 30.30R TC 3
ILZ067-068-072-073-078-083-087-091-211000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 28 22 78 NW7 30.32R WCI 21 TC -2
FLORA* PTCLDY 32 21 64 N8 30.32S WCI 25 TC 0
FAIRFIELD* PTCLDY 33 21 63 N5 30.32R WCI 28 TC 0
HARRISBURG* MOCLDY 32 22 66 N3 30.32R TC 0
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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