241
ASUS43 KLOT 182006
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 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.
ILZ001-002-007-009-015-016-024-182100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 43 34 70 W18G26 29.40S TC 6
STERLING* PTSUNNY 38 38 100 W10 29.40R WCI 31 TC 3
SAVANNA* PTSUNNY 39 36 88 W8 29.39R WCI 33 TC 4
ILZ003-004-008-010-011-017-018-182100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 38 35 89 W8 29.38R WCI 32 TC 3
FREEPORT* CLOUDY 37 35 89 W8 29.37R WCI 31 TC 3
DE KALB* LGT RAIN 37 37 100 W18 29.38R WCI 26 TC 3
PERU* CLOUDY 39 38 99 W10 29.41R WCI 32 TC 4
ILZ005-006-012>014-019>023-182100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE LGT RAIN 48 44 86 SW14G23 29.31R TC 9
CHICAGO-MIDWAY LGT RAIN 50 47 89 SW15G25 29.33R TC 10
AURORA LGT RAIN 38 37 97 W16G24 29.37R FOG WCI 29
JOLIET* LGT RAIN 43 42 95 W13G21 29.39R TC 6
WAUKEGAN LGT RAIN 49 46 90 SW17G26 29.26R TC 9
DUPAGE AIRPORT LGT RAIN 41 40 96 W16G26 29.34R TC 5
KANKAKEE* LGT RAIN 48 47 95 W16G33 29.40R TC 9
WHEELING LGT RAIN 49 45 86 W9G21 29.31R TC 9
MORRIS* LGT RAIN 40 40 100 W17G24 29.38R TC 5
ROMEOVILLE* LGT RAIN 50 50 100 S25G40 29.31 FOG TC 10
LANSING* LGT RAIN 51 46 84 S26G33 29.33F TC 10
NORTHERLY ISL* N/A 51 48 89 S18 N/A TC 11
LMZ740>746-182100-
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 49 190/ 32/ 37 N/A
NORTHERLY ISL 52 170/ 11/ 24 N/A
CALUMET HARBOR 52 160/ 21/ 32 992.2
BURNS HARBOR 51 180/ 13/ 18 994.2F
MICHIGAN CITY 51 170/ 22/ 26 992.9F
ILZ025>027-034>036-040-047-049-050-058-095>099-182100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 46 38 73 SW10 29.49F TC 8
GALESBURG* MOSUNNY 42 41 95 W9 29.46R TC 6
MACOMB* MOSUNNY 43 40 88 W10 29.49S TC 6
JACKSONVILLE* PTSUNNY 40 40 99 W5 29.51R TC 5
ILZ028>032-037-038-041>044-048-051>054-059>061-182100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC LGT RAIN 40 40 97 W24 29.43R TC 5
BLOOMINGTON LGT RAIN 40 40 100 W15 29.46R TC 4
DECATUR LGT RAIN 42 40 92 W20G28 29.49R FOG TC 6
PEORIA PTSUNNY 40 37 89 W7 29.46R TC 4
LACON* CLOUDY 39 36 86 W5 29.44R TC 4
LINCOLN* LGT RAIN 41 39 94 W3 29.49R TC 5
SPRINGFIELD CLOUDY 41 39 93 W10 29.51R TC 5
TAYLORVILLE N/A 42 40 91 W16G22 29.52R TC 6
ILZ033-039-045-046-055>057-062-063-182100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN LGT RAIN 48 47 96 W18G26 29.46R TC 9
DANVILLE* CLOUDY 52 50 93 S21G35 29.41F TC 11
RANTOUL* RAIN 49 47 94 W14G46 29.43R TC 9
MATTOON RAIN 52 51 97 S17G33 29.42F FOG TC 11
PARIS* RAIN 51 51 98 S20 29.45F TC 11
ILZ079-100>102-182100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON LGT RAIN 45 43 93 NW13 29.56R TC 7
BELLEVILLE RAIN 46 45 93 W13 29.55 FOG TC 8
CAHOKIA* LGT RAIN 45 42 89 W10 29.57R TC 7
SPARTA* RAIN 48 48 100 NW10 29.58R TC 9
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-182100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE LGT RAIN 57 55 93 S16G29 29.51F TC 14
CAIRO* CLOUDY 58 57 97 S14G20 29.56F TC 15
EFFINGHAM* LGT RAIN 54 54 100 S14G24 29.47F TC 12
MARION LGT RAIN 57 55 94 S14 29.52F TC 14
MT. VERNON LGT RAIN N/A N/A N/A S20G28 29.49F
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* HVY RAIN 52 49 89 W16G36 29.52R TC 11
METROPOLIS* RAIN 57 56 97 S6G20 29.57F TC 14
ILZ067-068-072-073-078-083-087-091-182100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE RAIN 55 53 93 S23G32 29.51F TC 13
FLORA* LGT RAIN 55 N/A N/A S18G24 29.49F TC 13
FAIRFIELD* LGT RAIN 55 53 94 S15 29.51F TC 13
HARRISBURG* LGT RAIN 57 54 90 S16 29.53F TC 14
ROBINSON* LGT RAIN 54 54 100 S22G28 29.48F FOG TC 12
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page