271
ASUS43 KLOT 182210
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 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.
ILZ001-002-007-009-015-016-024-182300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 32 23 69 W18G35 29.52R WCI 20 TC 0
STERLING* CLOUDY 32 28 85 W25G37 29.47R WCI 19 TC 0
SAVANNA* CLOUDY 31 22 69 W14G25 29.48R WCI 21 TC 0
ILZ003-004-008-010-011-017-018-182300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 37 34 89 SW13G22 29.42R WCI 29 TC 3
FREEPORT* CLOUDY 32 29 90 W22G28 29.43R WCI 19 TC 0
DE KALB* MOCLDY 35 35 100 CALM 29.42R TC 2
PERU* MOCLDY 39 38 95 SW7 29.46R WCI 34 TC 4
ILZ005-006-012>014-019>023-182300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 38 34 85 W10 29.40R WCI 31 TC 3
CHICAGO-MIDWAY CLOUDY 39 36 89 W12 29.42R WCI 32 TC 4
AURORA MOCLDY 36 35 96 SW9 29.41R WCI 29 TC 2
JOLIET* CLOUDY 40 38 96 W6 29.44R TC 4
WAUKEGAN CLOUDY 38 34 85 W10 29.36R WCI 31 TC 3
DUPAGE AIRPORT MOCLDY 37 35 92 SW10 29.41R WCI 30 TC 3
KANKAKEE* CLOUDY 39 38 95 W12 29.47R WCI 32 TC 4
WHEELING CLOUDY 39 34 82 W8 29.40R WCI 33 TC 4
MORRIS* MOCLDY 38 38 100 W8 29.45R WCI 32 TC 3
ROMEOVILLE* PTCLDY 37 37 100 W9 29.44R WCI 31 TC 3
LANSING* LGT RAIN 39 35 83 W12 29.36R WCI 32 TC 4
NORTHERLY ISL* N/A 40 35 83 W9 N/A TC 4
LMZ740>746-182300-
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 40 280/ 18/ 20 N/A
NORTHERLY ISL 41 270/ 17/ 17 N/A
CALUMET HARBOR 41 240/ 9/ 14 995.4
BURNS HARBOR 42 260/ 15/ 17 995.9R
MICHIGAN CITY 44 250/ 24/ 26 994.0R
ILZ025>027-034>036-040-047-049-050-058-095>099-182300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY RAIN 37 34 89 NW20G39 29.57R FOG WCI 27
GALESBURG* CLOUDY 33 32 96 NW20 29.55R WCI 21 TC 0
MACOMB* LGT RAIN 34 32 92 NW17G23 29.58R WCI 24 TC 1
JACKSONVILLE* MOCLDY 41 40 98 S9 29.54R TC 5
ILZ028>032-037-038-041>044-048-051>054-059>061-182300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 39 37 93 W10 29.48R WCI 33 TC 4
BLOOMINGTON CLOUDY 39 39 100 W12 29.51R WCI 32 TC 4
DECATUR CLOUDY 41 39 93 SW6 29.52S TC 5
PEORIA MOCLDY 39 37 92 SW10 29.50R WCI 32 TC 4
LACON* MOCLDY 38 35 89 SW6 29.48R WCI 34 TC 4
LINCOLN* MOCLDY 40 39 94 SW3 29.52R TC 5
SPRINGFIELD MOCLDY 41 39 93 SW5 29.53R TC 5
TAYLORVILLE N/A 41 40 95 W5 29.54F TC 5
ILZ033-039-045-046-055>057-062-063-182300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN LGT RAIN 40 39 97 W12 29.52R TC 4
DANVILLE* CLOUDY 43 40 90 W15G22 29.50R TC 6
RANTOUL* LGT RAIN 41 39 95 W7 29.49R TC 5
MATTOON LGT RAIN 42 40 92 W17 29.55R TC 6
PARIS* LGT RAIN 42 42 98 W23G29 29.52R TC 6
ILZ079-100>102-182300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 43 39 87 W5 29.58S TC 6
BELLEVILLE CLOUDY 45 43 92 SW5 29.57R TC 7
SPARTA* CLOUDY 44 44 100 W5 29.61R TC 7
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-182300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE RAIN 47 45 93 NW7 29.61R FOG TC 8
CAIRO* CLOUDY 51 49 92 NW10 29.62R TC 11
EFFINGHAM* RAIN 43 42 97 W16 29.57R TC 6
MARION LGT RAIN 46 45 93 NW18 29.58R TC 8
MT. VERNON LGT RAIN N/A N/A N/A VRB6 29.58R
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* RAIN 46 44 93 W8 29.58R TC 8
METROPOLIS* RAIN 53 51 92 W17G36 29.58R TC 12
ILZ067-068-072-073-078-083-087-091-182300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE RAIN 50 48 93 W12 29.54 FOG TC 10
FLORA* LGT RAIN 46 45 93 NW15 29.58R TC 8
FAIRFIELD* LGT RAIN 48 44 86 W9G16 29.56R TC 9
HARRISBURG* LGT RAIN 49 46 90 NW10 29.57R TC 10
ROBINSON* LGT RAIN 50 48 93 W21G32 29.52R FOG TC 10
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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