635
ASUS43 KLOT 150806
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 AM CST MON DEC 15 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.
ILZ001-002-007-009-015-016-024-150900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 3 -5 69 S10 30.39F WCI -12 TC -16
STERLING* PTCLDY 2 -5 72 VRB7 30.43F WCI -11 TC -17
SAVANNA* PTCLDY 3 -5 68 S10 30.40F WCI -12 TC -16
ILZ003-004-008-010-011-017-018-150900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 3 -5 69 S9 30.42F WCI -12 TC -16
FREEPORT* PTCLDY 6 -3 65 S13 30.38F WCI -10 TC -14
DE KALB* MOCLDY 0 -6 77 S13 30.41F WCI -18 TC -18
PERU* PTCLDY 1 -6 71 S10 30.45F WCI -14 TC -17
ILZ005-006-012>014-019>023-150900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 3 -7 63 SW9 30.45F WCI -12 TC -16
CHICAGO-MIDWAY MOCLDY 3 -6 66 S9 30.47F WCI -12 TC -16
AURORA CLOUDY 0 -6 76 S9 30.44F WCI -15 TC -18
JOLIET* MOCLDY 4 -4 70 SW6 30.49F WCI -7 TC -16
WAUKEGAN MOCLDY 4 -5 66 SW14 30.41F WCI -14 TC -16
DUPAGE AIRPORT CLOUDY 2 -7 66 S9 30.44F WCI -13 TC -17
WHEELING MOCLDY 4 -7 60 MISG 30.46F TC -16
MORRIS* CLOUDY 0 -5 80 S7 30.47F WCI -13 TC -18
ROMEOVILLE* PTCLDY 1 -2 85 S10 30.48F WCI -14 TC -17
LANSING* PTCLDY 1 -9 62 S9 30.49F WCI -14 TC -17
NORTHERLY ISL* N/A 4 -6 63 S12 N/A WCI -12 TC -15
LMZ740>746-150900-
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 6 200/ 16/ 19 N/A
NORTHERLY ISL 4 200/ 7/ 13 N/A
CALUMET HARBOR 3 200/ 9/ 13 1031.8
BURNS HARBOR 4 200/ 8/ 9 1032.8F
MICHIGAN CITY 3 210/ 12/ 14 1034.3F
ILZ025>027-034>036-040-047-049-050-058-095>099-150900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 9 2 73 S10 30.45F WCI -5 TC -13
GALESBURG* CLEAR -1 -4 87 S7 30.43F WCI -15 TC -18
MACOMB* CLEAR -1 -6 76 S9 30.49S WCI -16 TC -18
JACKSONVILLE* CLEAR 4 -2 76 S6 30.51F WCI -7 TC -16
ILZ028>032-037-038-041>044-048-051>054-059>061-150900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOCLDY -2 -9 72 SE3 30.51S TC -19
BLOOMINGTON CLEAR -5 -9 83 S10 30.49S WCI -23 TC -21
DECATUR CLEAR -2 -8 76 S10 30.53S WCI -19 TC -19
PEORIA CLEAR -3 -7 82 S8 30.50F WCI -18 TC -19
LACON* PTCLDY 0 -9 65 S6 30.48F WCI -12 TC -18
LINCOLN* CLEAR -3 -12 65 S7 30.54R WCI -16 TC -19
SPRINGFIELD CLEAR 0 -7 72 S7 30.53S WCI -13 TC -18
TAYLORVILLE CLEAR 1 -5 78 S6 30.54S WCI -11 TC -17
ILZ033-039-045-046-055>057-062-063-150900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR -7 -13 75 S8 30.51F WCI -23 TC -22
DANVILLE* CLEAR -8 -13 79 S5 30.55F WCI -19 TC -22
RANTOUL* CLEAR -10 -15 78 SE5 30.53R WCI -22 TC -23
MATTOON CLEAR -3 -8 79 S7 30.52F WCI -16 TC -19
PARIS* CLEAR -8 -13 77 SE6 30.55F WCI -21 TC -22
ILZ079-100>102-150900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 10 3 72 S5 30.55S WCI 2 TC -12
BELLEVILLE CLEAR 10 3 74 S5 30.56F WCI 2 TC -12
CAHOKIA* CLEAR 11 2 67 VRB3 30.56S TC -12
SPARTA* CLEAR 10 3 72 SE7 30.58F WCI -1 TC -12
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-150900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 10 4 76 CALM 30.60S TC -12
CAIRO* CLEAR 12 6 76 CALM 30.62F TC -11
EFFINGHAM* CLEAR 3 -2 79 CALM 30.58F TC -16
MT. VERNON CLEAR N/A N/A N/A SE3 30.59F
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* CLEAR 8 1 72 S7 30.57F WCI -4 TC -13
METROPOLIS* CLEAR 10 4 75 CALM 30.62S TC -12
ILZ067-068-072-073-078-083-087-091-150900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 0 -6 76 CALM 30.59F TC -18
FLORA* CLEAR 5 0 78 S7 30.59F WCI -7 TC -15
FAIRFIELD* CLEAR 6 0 75 CALM 30.61R TC -14
HARRISBURG* CLEAR 9 3 77 CALM 30.61S TC -13
ROBINSON* CLEAR -4 -8 84 MISG 30.59F TC -20
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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