230
ASUS43 KLOT 210701
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 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.
ILZ001-002-007-009-015-016-024-210800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 26 12 55 NW10 30.28R WCI 16 TC -3
STERLING* CLEAR 24 13 62 NW8 30.26R WCI 15 TC -4
SAVANNA* CLEAR 23 9 55 NW6 30.26R WCI 16 TC -5
ILZ003-004-008-010-011-017-018-210800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 21 10 62 NW13 30.24R WCI 9 TC -6
FREEPORT* CLEAR 22 9 58 NW14G20 30.25R WCI 9 TC -6
DE KALB* CLEAR 23 12 63 NW18G24 30.21R WCI 8 TC -5
ILZ005-006-012>014-019>023-210800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 26 10 50 NW21G28 30.17R WCI 12 TC -3
CHICAGO-MIDWAY CLEAR 28 12 51 NW16G23 30.18R WCI 16 TC -2
AURORA CLEAR 24 13 62 NW21 30.19R WCI 9 TC -4
JOLIET* CLEAR 30 15 55 NW6 30.22R WCI 24 TC -1
WAUKEGAN CLEAR 24 8 50 NW15G28 30.17R WCI 11 TC -4
DUPAGE AIRPORT CLEAR 25 11 55 NW15 30.18R WCI 13 TC -4
WHEELING CLEAR 25 11 55 NW13G21 30.19R WCI 14 TC -4
MORRIS* CLEAR 27 20 76 NW8 30.21R WCI 18 TC -3
LANSING* CLEAR 29 10 44 NW10 30.19R WCI 20 TC -2
NORTHERLY ISL* N/A 28 12 51 W13 N/A WCI 18 TC -2
LMZ740>746-210800-
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 29 280/ 13/ 20 N/A
CALUMET HARBOR 30 270/ 7/ 16 1020.8
BURNS HARBOR 32 300/ 10/ 13 1022.4R
ILZ025>027-034>036-040-047-049-050-058-095>099-210800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 28 19 69 NW7 30.29R WCI 21 TC -2
MACOMB* CLEAR 25 18 73 NW9 30.30R WCI 15 TC -4
ILZ028>032-037-038-041>044-048-051>054-059>061-210800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 28 19 68 W13 30.24R WCI 18 TC -2
BLOOMINGTON CLEAR 29 19 66 NW13 30.25R WCI 19 TC -2
DECATUR PTCLDY 31 18 58 NW8 30.27R WCI 23 TC -1
PEORIA CLEAR 28 18 66 W3 30.27R TC -2
LACON* CLEAR 27 16 63 W5 30.26R WCI 22 TC -3
LINCOLN* PTCLDY 31 17 56 W5 30.27S WCI 26 TC -1
SPRINGFIELD PTCLDY 30 20 66 W3 30.29R TC -1
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-210800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 30 21 69 NW13 30.24S WCI 20 TC -1
DANVILLE* CLEAR 32 19 60 NW13G18 30.25R WCI 22 TC 0
RANTOUL* CLEAR 30 19 63 NW12 30.24R WCI 21 TC -1
MATTOON PTCLDY 31 22 69 NW10 30.25S WCI 22 TC -1
PARIS* CLEAR 29 22 75 NW7 30.26R WCI 22 TC -1
ILZ079-100>102-210800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BELLEVILLE PTCLDY 31 20 64 N5 30.28R WCI 26 TC -1
CAHOKIA* PTCLDY 29 20 69 CALM 30.29S TC -2
SPARTA* PTCLDY 35 20 55 CALM 30.30F TC 2
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE PTCLDY 35 24 64 CALM 30.28S TC 2
CAIRO* CLEAR 41 28 58 N8 30.27R TC 5
EFFINGHAM* PTCLDY 33 23 66 NW9 30.29S WCI 25 TC 1
MT. VERNON PTCLDY 33 21 61 CALM 30.29S TC 1
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* PTCLDY 33 22 63 N3 30.28S TC 1
METROPOLIS* CLEAR 41 24 50 CALM 30.27R TC 5
ILZ067-068-072-073-078-083-087-091-210800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 31 24 75 NW7 30.27R WCI 24 TC -1
FLORA* PTCLDY 32 25 74 NW6 30.29S WCI 26 TC 0
FAIRFIELD* PTCLDY 35 23 61 CALM 30.28S TC 2
HARRISBURG* PTCLDY 36 23 58 N5 30.29S WCI 32 TC 2
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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