389
ASUS43 KLOT 181201
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 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.
ILZ001-002-007-009-015-016-024-181300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 26 21 81 SE3 29.95R TC -3
6HR MIN TEMP: 24; 6HR MAX TEMP: 27;
STERLING* CLOUDY 26 24 92 VRB6 29.98S WCI 19 TC -3
SAVANNA* CLOUDY 26 22 86 S10 29.97S WCI 16 TC -3
ILZ003-004-008-010-011-017-018-181300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD FLURRIES 25 21 85 SE12 29.99S WCI 14 TC -4
6HR MIN TEMP: 21; 6HR MAX TEMP: 25; 6HR PCP: 0.04;
FREEPORT* CLOUDY 26 23 89 S12 29.98R WCI 15 TC -3
ROCHELLE* CLOUDY 26 22 85 S16G24 29.98F WCI 13 TC -4
DE KALB* LGT SNOW 24 22 94 S18G24 30.00S WCI 9 TC -5
PERU* CLOUDY 28 24 85 S15 30.00F WCI 16 TC -2
ILZ005-006-012>014-019>023-181300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 24 19 81 S13G26 30.02F WCI 12 TC -4
6HR MIN TEMP: 23; 6HR MAX TEMP: 24; 6HR PCP: 0.01;
CHICAGO-MIDWAY FLURRIES 25 19 78 S15G24 30.05S WCI 13 TC -4
6HR MIN TEMP: 23; 6HR MAX TEMP: 25; 6HR PCP: TRACE;
AURORA CLOUDY 25 21 85 SE15 30.01F WCI 13 TC -4
6HR MIN TEMP: 23; 6HR MAX TEMP: 25; 6HR PCP: 0.01;
JOLIET* CLOUDY 27 22 82 S9G18 30.05F WCI 17 TC -3
WAUKEGAN CLOUDY 24 20 84 S13 30.01F WCI 12 TC -4
6HR MIN TEMP: 22; 6HR MAX TEMP: 24; 6HR PCP: TRACE;
DUPAGE AIRPORT CLOUDY 24 21 88 S16 30.02S WCI 11 TC -4
6HR MIN TEMP: 23; 6HR MAX TEMP: 24;
WHEELING CLOUDY 25 20 81 S14 30.04S WCI 13 TC -4
6HR MIN TEMP: 23; 6HR MAX TEMP: 25; 6HR PCP: TRACE;
MORRIS* FLURRIES 26 21 81 S13 30.02F WCI 15 TC -3
ROMEOVILLE* CLOUDY 25 21 86 S15G23 30.05F WCI 12 TC -4
LANSING* CLOUDY 24 19 83 S13G21 30.08S WCI 12 TC -5
NORTHERLY ISL* N/A 24 20 84 S16 N/A WCI 11 TC -4
LMZ740>746-181300-
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 25 180/ 25/ 28 N/A
NORTHERLY ISL 24 180/ 11/ 14 N/A
CALUMET HARBOR 24 140/ 9/ 14 1017.6S
BURNS HARBOR 24 170/ 8/ 11 1019.0S
MICHIGAN CITY 24 150/ 13/ 15 1019.4F
ILZ025>027-034>036-040-047-049-050-058-095>099-181300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 32 20 61 S9 29.92F WCI 24 TC 0
GALESBURG* CLEAR 27 26 98 SE6 29.97S WCI 20 TC -3
MACOMB* PTCLDY 28 24 82 SE7 29.98R WCI 21 TC -2
JACKSONVILLE* CLOUDY 32 20 61 SE13 29.98S WCI 23 TC 0
PITTSFIELD* PTCLDY 33 23 67 SE7 29.97S WCI 27 TC 1
ILZ028>032-037-038-041>044-048-051>054-059>061-181300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC LGT SNOW 28 21 77 NE14 30.03F WCI 16 TC -2
BLOOMINGTON FLURRIES 27 22 81 SE18 30.03S WCI 14 TC -3
DECATUR CLOUDY 30 20 66 S16 30.04F WCI 19 TC -1
PEORIA CLOUDY 29 21 72 SE13 29.99F WCI 19 TC -2
6HR MIN TEMP: 25; 6HR MAX TEMP: 29; 6HR PCP: TRACE;
LACON* CLOUDY 28 21 75 S10 30.00F WCI 18 TC -2
LINCOLN* CLOUDY 31 20 63 S9 30.02S WCI 23 TC -1
SPRINGFIELD CLOUDY 32 21 64 SE14 30.00S WCI 22 TC 0
6HR MIN TEMP: 26; 6HR MAX TEMP: 32; 6HR PCP: TRACE;
TAYLORVILLE CLOUDY 32 21 64 S13 30.03S WCI 22 TC 0
ILZ033-039-045-046-055>057-062-063-181300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 28 19 69 SE14 30.06S WCI 17 TC -2
DANVILLE* CLOUDY 28 18 65 SE12 30.10S WCI 18 TC -2
RANTOUL* CLOUDY 27 19 70 SE15 30.06F WCI 15 TC -3
MATTOON CLOUDY 29 19 66 S18G30 30.05F WCI 16 TC -2
PARIS* CLOUDY 28 18 65 SE15 30.10F WCI 17 TC -2
ILZ079-100>102-181300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 34 25 69 S13 30.02F WCI 25 TC 1
BELLEVILLE CLOUDY 38 25 59 S14 30.03 WCI 30 TC 3
CAHOKIA* CLOUDY 37 23 56 S8 30.02F WCI 31 TC 3
SPARTA* CLOUDY 38 22 51 S13G21 30.07S WCI 31 TC 4
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 39 20 46 S12 30.10S WCI 32 TC 4
6HR MIN TEMP: 34; 6HR MAX TEMP: 39;
CAIRO* CLOUDY 40 24 53 S8 30.16S TC 5
EFFINGHAM* CLOUDY 31 20 63 SE9 30.12S WCI 23 TC 0
MARION CLOUDY 37 18 44 S14 30.11F WCI 29 TC 3
MT. VERNON FLURRIES 32 25 75 S8 30.11S WCI 25 TC 0
CENTRALIA* LGT RAIN 34 23 65 SE13 30.08F WCI 25 TC 1
SALEM* LGT SNOW 34 22 60 S9G17 30.08F WCI 27 TC 1
ILZ067-068-072-073-078-083-087-091-181300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 32 17 54 S18 30.13F WCI 20 TC 0
FLORA* CLOUDY 34 21 60 S13 30.12S WCI 25 TC 1
FAIRFIELD* CLOUDY 34 19 55 S12G17 30.13R WCI 25 TC 1
HARRISBURG* CLOUDY 38 17 43 S7 30.14S WCI 32 TC 3
ROBINSON* CLOUDY 30 18 59 SE15 30.12F WCI 19 TC -1
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