608
ASUS43 KLOT 181708
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM 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.
ILZ001-002-007-009-015-016-024-181800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE RAIN 39 37 92 W18G29 29.40R FOG WCI 30
STERLING* SQUALL 46 46 100 W31G37 29.32F SQUALL VSB 1
SAVANNA* LGT RAIN 39 38 96 NW17G28 29.36R WCI 29 TC 4
ILZ003-004-008-010-011-017-018-181800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD FOG 45 45 100 S18G32 29.30F VSB 1/2 TC 7
FREEPORT* CLOUDY 43 40 89 S18G25 29.28F VSB<1/4 TC 6
DE KALB* LGT RAIN 41 41 100 S17 29.35F VSB<1/4 TC 5
PERU* CLOUDY 52 51 97 S28G38 29.33F TC 11
ILZ005-006-012>014-019>023-181800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 49 46 90 S18G32 29.38F TC 9
CHICAGO-MIDWAY CLOUDY 49 46 90 S17G35 29.42F TC 9
AURORA CLOUDY 44 44 100 S20G31 29.36F FOG TC 7
JOLIET* CLOUDY 49 48 95 S17G25 29.41F TC 10
WAUKEGAN CLOUDY 48 46 93 S16G31 29.37F FOG TC 9
DUPAGE AIRPORT CLOUDY 48 47 96 S28G39 29.37F TC 9
KANKAKEE* CLOUDY 50 47 88 S24G36 29.47F TC 10
WHEELING CLOUDY 49 47 93 S24G36 29.39F TC 9
MORRIS* CLOUDY 47 47 100 S20 29.39F TC 8
ROMEOVILLE* PTSUNNY 48 48 100 S22G35 29.44F TC 9
LANSING* CLOUDY 49 44 83 S30 29.48F TC 9
NORTHERLY ISL* N/A 50 45 83 S23 N/A TC 10
LMZ740>746-181800-
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 48 190/ 30/ 32 N/A
NORTHERLY ISL 49 190/ 20/ 26 N/A
CALUMET HARBOR 50 160/ 18/ 25 997.4
BURNS HARBOR 49 180/ 12/ 19 999.0F
MICHIGAN CITY 49 180/ 26/ 32 998.0F
ILZ025>027-034>036-040-047-049-050-058-095>099-181800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY LGT RAIN 42 39 89 NW21G31 29.50R TC 6
GALESBURG* LGT RAIN 38 38 100 W20G30 29.43R WCI 29 TC 4
MACOMB* LGT RAIN 40 39 97 NW18G25 29.47R TC 4
JACKSONVILLE* CLOUDY 55 55 99 S18G32 29.40F TC 13
ILZ028>032-037-038-041>044-048-051>054-059>061-181800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 50 48 95 S28G33 29.42F TC 10
BLOOMINGTON CLOUDY 51 51 100 S30G38 29.42F TC 11
DECATUR CLOUDY 53 51 93 S24G33 29.47F TC 12
PEORIA LGT RAIN 53 51 93 S25G44 29.34F TC 12
LACON* CLOUDY 53 49 86 S17G33 29.34F TC 11
LINCOLN* CLOUDY 55 53 94 S22G33 29.42F TC 13
SPRINGFIELD CLOUDY 54 51 90 S25G49 29.42F TC 12
TAYLORVILLE CLOUDY 53 51 94 S24G37 29.47F TC 12
ILZ033-039-045-046-055>057-062-063-181800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 50 49 96 S29G38 29.49F FOG TC 10
DANVILLE* CLOUDY 51 47 84 S29G37 29.55F TC 11
RANTOUL* LGT RAIN 45 44 96 S18 29.49F TC 7
MATTOON LGT RAIN 50 49 96 S20G39 29.54F FOG TC 10
PARIS* CLOUDY 49 48 95 S32G38 29.58F TC 10
ILZ079-100>102-181800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 55 52 88 S22G32 29.50F TC 13
BELLEVILLE CLOUDY 56 54 93 S18G25 29.52F TC 13
CAHOKIA* LGT RAIN 57 53 86 S16G25 29.49F TC 14
SPARTA* LGT RAIN 53 53 100 S18G26 29.58F TC 12
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 55 53 93 S16G31 29.63F FOG TC 13
CAIRO* CLOUDY 57 55 92 S17G23 29.67F TC 14
EFFINGHAM* DRIZZLE 52 51 98 SE16G26 29.60F TC 11
MARION CLOUDY 55 54 94 S20G25 29.65F TC 13
MT. VERNON CLOUDY N/A N/A N/A S15 29.61F FOG
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* LGT RAIN 55 52 89 S17 29.58F TC 13
METROPOLIS* RAIN 57 53 86 S9G18 29.71F TC 14
ILZ067-068-072-073-078-083-087-091-181800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 49 47 93 S23 29.68F TC 9
FLORA* CLOUDY 52 50 93 S20G30 29.63F TC 11
FAIRFIELD* CLOUDY 53 50 90 S16G23 29.64F TC 12
HARRISBURG* DRIZZLE 54 51 91 S16 29.66F TC 12
ROBINSON* CLOUDY 50 50 100 S20G26 29.64F FOG TC 10
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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