298
ASUS43 KLOT 182310
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 PM CST THU DEC 18 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.
ILZ001-002-007-009-015-016-024-190000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 29 20 69 W28G39 29.55R WCI 14 TC -2
STERLING* CLOUDY 29 23 78 W32G39 29.50R WCI 13 TC -2
SAVANNA* CLOUDY 29 19 65 W21G26 29.52R WCI 16 TC -2
ILZ003-004-008-010-011-017-018-190000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 32 24 72 W21G36 29.45R WCI 20 TC 0
FREEPORT* MOCLDY 29 23 77 W20G32 29.49R WCI 17 TC -1
DE KALB* CLOUDY 34 34 100 W17G28 29.44R WCI 23 TC 1
PERU* CLOUDY 36 31 82 W23G29 29.49R WCI 24 TC 2
ILZ005-006-012>014-019>023-190000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 38 34 85 SW14 29.41R WCI 30 TC 3
CHICAGO-MIDWAY CLOUDY 38 35 89 SW9 29.43R WCI 31 TC 3
AURORA CLOUDY 36 34 92 W12G21 29.44R WCI 28 TC 2
JOLIET* CLOUDY 39 38 95 W6 29.44F WCI 35 TC 4
WAUKEGAN CLOUDY 38 33 82 W12 29.37R WCI 30 TC 3
DUPAGE AIRPORT CLOUDY 36 35 96 SW12 29.42R WCI 28 TC 2
KANKAKEE* CLOUDY 39 37 95 SW12 29.49R WCI 31 TC 4
WHEELING CLOUDY 38 35 89 W10 29.42R WCI 31 TC 3
MORRIS* CLOUDY 37 37 99 W8 29.44S WCI 31 TC 3
ROMEOVILLE* MOCLDY 37 37 100 SW9 29.45R WCI 31 TC 3
LANSING* CLOUDY 38 33 84 W9 29.36S WCI 31 TC 3
NORTHERLY ISL* N/A 39 34 82 SW3 N/A TC 4
LMZ740>746-190000-
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)
HARRISON CRIB 40 250/ 11/ 12 N/A
NORTHERLY ISL 39 260/ 9/ 21 N/A
CALUMET HARBOR 230/ 6/ 9 996.1
BURNS HARBOR 39 260/ 8/ 10 997.6R
MICHIGAN CITY 38 250/ 15/ 16 996.0R
ILZ025>027-034>036-040-047-049-050-058-095>099-190000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 35 25 66 NW25G35 29.60R WCI 23 TC 2
GALESBURG* MOCLDY 29 26 88 W24G33 29.58R WCI 15 TC -1
MACOMB* CLOUDY 32 27 81 NW20G29 29.60R WCI 20 TC 0
JACKSONVILLE* CLOUDY 41 40 95 W29 29.57R TC 5
ILZ028>032-037-038-041>044-048-051>054-059>061-190000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 39 37 90 SW9G16 29.48S WCI 33 TC 4
BLOOMINGTON MOCLDY 38 38 100 SW9 29.50F WCI 31 TC 3
DECATUR CLOUDY 40 38 93 SW9 29.52S TC 4
PEORIA MIX PCPN 35 30 82 NW15G33 29.53R WCI 25 TC 2
LACON* LGT RAIN 33 31 91 NW10G16 29.51R WCI 25 TC 1
LINCOLN* MOCLDY 40 38 93 SW3 29.51S TC 5
SPRINGFIELD MOCLDY 41 39 93 SW7 29.52F TC 5
TAYLORVILLE N/A 41 40 95 W10G16 29.55S TC 5
ILZ033-039-045-046-055>057-062-063-190000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 40 38 93 W10 29.49F TC 4
DANVILLE* CLOUDY 42 39 91 W12 29.50F TC 6
RANTOUL* CLOUDY 39 38 95 W8 29.47F WCI 34 TC 4
MATTOON CLOUDY 41 37 86 W3 29.52F TC 5
PARIS* LGT RAIN 41 40 97 W12 29.53R TC 5
ILZ079-100>102-190000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 43 39 87 SW7 29.59R TC 6
BELLEVILLE MOCLDY 44 42 92 SW7 29.59R TC 7
CAHOKIA* MOCLDY 44 41 89 SW5 29.59 TC 7
SPARTA* MOCLDY 43 42 97 W3 29.63R TC 6
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-190000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 45 43 93 W3 29.61R TC 7
CAIRO* CLOUDY 49 47 91 NW5 29.62F TC 10
EFFINGHAM* CLOUDY 41 39 93 W3 29.57F TC 5
MARION LGT RAIN 45 43 93 NW9 29.62R TC 7
MT. VERNON CLOUDY N/A N/A N/A CALM 29.60R
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* CLOUDY 44 41 88 W5 29.58R TC 7
METROPOLIS* RAIN 50 49 96 CALM 29.62R TC 10
ILZ067-068-072-073-078-083-087-091-190000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE LGT RAIN 46 43 89 W17G28 29.55R TC 8
FLORA* LGT RAIN 45 43 93 NW12 29.58S TC 7
FAIRFIELD* LGT RAIN 46 43 91 CALM 29.58R TC 8
HARRISBURG* RAIN 47 44 91 W10 29.61R TC 8
ROBINSON* CLOUDY 46 45 93 NW15 29.54R TC 8
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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