509
ASUS43 KLOT 181301
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 AM CDT WED MAR 18 2026
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.
ILZ001-002-007-009-015-016-024-181400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 27 21 78 E3 29.97R TC -3
STERLING* CLOUDY 27 24 89 S6 30.00R WCI 20 TC -3
SAVANNA* CLOUDY 27 23 85 S9 29.98S WCI 17 TC -3
ILZ003-004-008-010-011-017-018-181400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 26 22 84 S12 30.00R WCI 16 TC -3
FREEPORT* CLOUDY 27 24 89 S9 29.99R WCI 17 TC -3
ROCHELLE* CLOUDY 26 22 84 S16 29.99R WCI 14 TC -3
DE KALB* CLOUDY 24 22 91 S17 29.99F WCI 11 TC -4
ILZ005-006-012>014-019>023-181400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE FLURRIES 25 19 78 S16G22 30.02F WCI 12 TC -4
CHICAGO-MIDWAY FLURRIES 25 19 78 S13G24 30.05S WCI 14 TC -4
AURORA CLOUDY 25 20 81 SE17 30.01S WCI 12 TC -4
JOLIET* CLOUDY 28 21 77 S8G16 30.06S WCI 19 TC -2
WAUKEGAN CLOUDY 25 20 81 S14 30.01S WCI 13 TC -4
DUPAGE AIRPORT CLOUDY 25 20 81 S14 30.02R WCI 13 TC -4
WHEELING CLOUDY 25 20 81 S13 30.04S WCI 14 TC -4
MORRIS* CLOUDY 27 20 76 S10G21 30.03S WCI 17 TC -3
ROMEOVILLE* CLOUDY 25 21 86 S16G25 30.05S WCI 12 TC -4
LANSING* CLOUDY 25 19 80 S12G18 30.08R WCI 14 TC -4
NORTHERLY ISL* N/A 25 19 78 S14 N/A WCI 13 TC -4
LMZ740>746-181400-
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 26 180/ 25/ 27 N/A
NORTHERLY ISL 24 140/ 10/ 14 N/A
CALUMET HARBOR 25 160/ 12/ 17 1017.4
BURNS HARBOR 24 170/ 6/ 12 1018.6F
MICHIGAN CITY 24 150/ 14/ 17 1019.1F
ILZ025>027-034>036-040-047-049-050-058-095>099-181400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 32 21 64 S8 29.95R WCI 25 TC 0
MACOMB* CLEAR 28 24 82 SE3 29.99S TC -2
PITTSFIELD* PTCLDY 33 24 67 S7 29.99R WCI 27 TC 1
ILZ028>032-037-038-041>044-048-051>054-059>061-181400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 28 21 74 NE17 30.03S WCI 16 TC -2
BLOOMINGTON PTSUNNY 28 22 78 S22 30.01F WCI 14 TC -2
DECATUR CLOUDY 31 21 66 S17G24 30.04S WCI 19 TC -1
PEORIA PTCLDY 29 21 72 S13G21 29.99S WCI 19 TC -2
LACON* CLOUDY 29 19 67 S9 30.00R WCI 21 TC -2
LINCOLN* CLOUDY 32 20 62 S13 30.02S WCI 22 TC 0
SPRINGFIELD MOCLDY 33 22 63 S14 30.01R WCI 23 TC 1
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-181400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 29 19 66 SE12 30.07R WCI 19 TC -2
DANVILLE* CLOUDY 29 17 61 S10 30.11R WCI 20 TC -1
MATTOON CLOUDY 30 19 63 S16 30.05S WCI 19 TC -1
PARIS* CLOUDY 30 18 61 S14G20 30.10S WCI 19 TC -1
ILZ079-100>102-181400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 37 25 60 S10 30.02S WCI 30 TC 3
CAHOKIA* CLOUDY 38 24 57 S12 30.03R WCI 30 TC 3
SPARTA* CLOUDY 39 24 54 S13G21 30.08R WCI 32 TC 4
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE PTSUNNY 39 25 57 S14 30.10S WCI 31 TC 4
CAIRO* CLOUDY 40 26 58 S9 30.15S TC 5
EFFINGHAM* CLOUDY 32 22 67 SE9 30.10F WCI 24 TC 0
MARION CLOUDY 37 21 52 S17 30.11S WCI 28 TC 3
MT. VERNON N/A 34 25 69 S12 30.10F WCI 25 TC 1
CENTRALIA* CLOUDY 35 24 63 S9 30.07F WCI 28 TC 2
SALEM* CLOUDY 35 25 66 S9G16 30.07S WCI 28 TC 2
ILZ067-068-072-073-078-083-087-091-181400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTSUNNY 33 17 51 S13 30.15R WCI 24 TC 1
FLORA* LGT RAIN 34 25 69 S15 30.11S WCI 24 TC 1
FAIRFIELD* FLURRIES 32 27 80 S10 30.13F WCI 24 TC 0
HARRISBURG* CLOUDY 39 19 43 S9 30.15R WCI 33 TC 4
ROBINSON* CLOUDY 32 18 55 S14 30.12F WCI 22 TC 0
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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