080
ASUS43 KLOT 210512
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM CST SAT DEC 20 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.
ILZ001-002-007-009-015-016-024-210600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 30 19 63 NW14 30.22R WCI 19 TC -1
STERLING* CLEAR 29 18 63 NW18G25 30.20R WCI 16 TC -2
SAVANNA* CLEAR 27 10 48 NW20G28 30.21R WCI 14 TC -3
ILZ003-004-008-010-011-017-018-210600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 27 13 55 NW24G33 30.17R WCI 12 TC -3
FREEPORT* CLEAR 27 12 53 NW22G31 30.19R WCI 13 TC -3
DE KALB* CLEAR 28 17 61 NW20G29 30.14R WCI 15 TC -2
PERU* CLEAR 31 20 65 W10G18 30.19R WCI 22 TC -1
ILZ005-006-012>014-019>023-210600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 31 12 45 W17G31 30.10R WCI 19 TC -1
CHICAGO-MIDWAY CLEAR 32 13 45 W16G36 30.12R WCI 21 TC 0
AURORA CLEAR 29 18 63 NW20G26 30.13R WCI 16 TC -2
JOLIET* CLEAR 32 20 62 W8G17 30.16R WCI 25 TC 0
WAUKEGAN CLEAR 28 13 53 W15G25 30.08R WCI 16 TC -2
DUPAGE AIRPORT CLEAR 30 15 53 NW17G30 30.12R WCI 18 TC -1
KANKAKEE* CLEAR 31 21 67 W13 30.17R WCI 21 TC -1
WHEELING CLEAR 30 13 49 NW17G29 30.11R WCI 18 TC -1
MORRIS* CLEAR 29 22 75 W12 30.16R WCI 20 TC -1
ROMEOVILLE* CLEAR 30 18 59 W12G22 30.15R WCI 21 TC -1
LANSING* CLEAR 31 11 43 W16 30.13R WCI 20 TC 0
NORTHERLY ISL* N/A 32 14 47 W13 N/A WCI 22 TC 0
LMZ740>746-210600-
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 32 250/ 15/ 21 N/A
CALUMET HARBOR 32 250/ 8/ 16 1018.6R
BURNS HARBOR 34 290/ 12/ 14 1020.0R
ILZ025>027-034>036-040-047-049-050-058-095>099-210600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 31 18 58 W5 30.28R WCI 26 TC -1
GALESBURG* CLEAR 26 23 88 W7 30.25R WCI 19 TC -3
MACOMB* CLEAR 29 21 73 W10 30.29R WCI 20 TC -2
JACKSONVILLE* PTCLDY 32 19 59 NW8 30.28R WCI 25 TC 0
ILZ028>032-037-038-041>044-048-051>054-059>061-210600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 31 20 64 W13 30.19R WCI 21 TC 0
BLOOMINGTON CLEAR 31 20 63 W15 30.22R WCI 20 TC -1
DECATUR PTCLDY 34 20 56 NW10 30.23R WCI 26 TC 1
PEORIA CLEAR 31 18 58 W6 30.24R WCI 25 TC -1
LACON* CLEAR 30 18 60 W8 30.21S WCI 22 TC -1
LINCOLN* CLEAR 32 19 56 NW5 30.25R WCI 28 TC 0
SPRINGFIELD CLEAR 33 20 58 NW8 30.26R WCI 26 TC 1
TAYLORVILLE PTCLDY 35 21 57 NW10 30.26R WCI 27 TC 2
ILZ033-039-045-046-055>057-062-063-210600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 31 23 72 W10 30.20R WCI 22 TC -1
DANVILLE* CLEAR 33 22 62 W10 30.20R WCI 25 TC 1
RANTOUL* CLEAR 32 21 64 NW10 30.19R WCI 24 TC 0
MATTOON PTCLDY 31 25 78 W12 30.22R WCI 22 TC -1
PARIS* PTCLDY 32 24 72 NW10 30.21R WCI 23 TC 0
ILZ079-100>102-210600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTCLDY 36 19 51 NW3 30.29R TC 2
BELLEVILLE PTCLDY 37 20 50 N8 30.27R WCI 31 TC 3
CAHOKIA* MOCLDY 36 19 50 N5 30.29R WCI 32 TC 2
SPARTA* PTCLDY 37 23 57 N3 30.29R TC 3
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE PTCLDY 37 30 75 N9 30.25R WCI 30 TC 3
CAIRO* CLEAR 44 32 63 N9 30.21R TC 7
EFFINGHAM* PTCLDY 32 27 80 W5 30.27R WCI 28 TC 0
MARION PTCLDY 39 28 63 N7 30.25R WCI 34 TC 4
MT. VERNON PTCLDY 38 25 59 N3 30.26R TC 3
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* PTCLDY 37 26 66 NW9 30.26R WCI 30 TC 3
METROPOLIS* CLEAR 42 31 65 CALM 30.21R TC 6
ILZ067-068-072-073-078-083-087-091-210600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 35 27 72 NW10 30.22R WCI 27 TC 2
FLORA* PTCLDY 34 27 75 NW8 30.25R WCI 27 TC 1
FAIRFIELD* PTCLDY 38 26 60 N7 30.24R WCI 33 TC 4
HARRISBURG* PTCLDY 39 28 64 N9 30.24R WCI 33 TC 4
ROBINSON* PTCLDY 34 28 80 NW7 30.22R WCI 28 TC 1
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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