495
ASUS43 KLOT 181510
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 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.
ILZ001-002-007-009-015-016-024-181600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 33 22 63 S8 29.96S WCI 26 TC 1
STERLING* MOSUNNY 32 22 66 VRB7 30.00S WCI 26 TC 0
SAVANNA* CLOUDY 30 24 77 S7 29.98F WCI 23 TC -1
ILZ003-004-008-010-011-017-018-181600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 29 23 78 S12 30.01S WCI 19 TC -2
FREEPORT* CLOUDY 29 25 83 S13 29.99S WCI 19 TC -2
ROCHELLE* PTSUNNY 29 23 76 S14 30.00S WCI 19 TC -1
DE KALB* CLOUDY 27 24 86 S17G23 30.00S WCI 14 TC -3
ILZ005-006-012>014-019>023-181600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 27 20 75 S12G22 30.02S WCI 17 TC -3
CHICAGO-MIDWAY CLOUDY 28 20 71 S17G24 30.04S WCI 16 TC -2
AURORA CLOUDY 29 22 75 S16 30.01S WCI 17 TC -2
JOLIET* CLOUDY 31 24 74 S10G17 30.05S WCI 22 TC -1
WAUKEGAN CLOUDY 27 21 78 S14 30.01F WCI 16 TC -3
DUPAGE AIRPORT CLOUDY 27 22 81 S13G26 30.01S WCI 16 TC -3
KANKAKEE* CLOUDY 30 23 75 S15G21 30.08R WCI 19 TC -1
WHEELING CLOUDY 27 21 78 S17G25 30.04S WCI 14 TC -3
MORRIS* CLOUDY 30 23 77 S16 30.03S WCI 18 TC -1
ROMEOVILLE* CLOUDY 28 23 80 S16G23 30.04F WCI 17 TC -2
LANSING* MIX PCPN 28 21 76 S17 30.07S WCI 15 TC -2
NORTHERLY ISL* N/A 27 21 78 S13 N/A WCI 16 TC -3
LMZ740>746-181600-
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 28 190/ 23/ 26 N/A
NORTHERLY ISL 27 180/ 14/ 16 N/A
CALUMET HARBOR 27 170/ 11/ 19 1017.3
BURNS HARBOR 27 180/ 10/ 14 1018.6R
MICHIGAN CITY 26 170/ 11/ 14 1018.9F
ILZ025>027-034>036-040-047-049-050-058-095>099-181600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 40 26 57 SW13 29.97R TC 4
GALESBURG* SUNNY 33 29 86 S8 29.99R WCI 26 TC 1
MACOMB* SUNNY 36 26 69 S7 30.00S WCI 30 TC 2
JACKSONVILLE* SUNNY 40 25 54 S12 30.00S TC 5
PITTSFIELD* SUNNY 42 27 55 S10 30.00S TC 6
ILZ028>032-037-038-041>044-048-051>054-059>061-181600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 33 23 67 S16 30.03S WCI 23 TC 1
BLOOMINGTON SUNNY 35 25 66 S21 30.02R WCI 24 TC 2
DECATUR MOSUNNY 37 26 64 S17G24 30.03S WCI 27 TC 3
PEORIA SUNNY 34 24 67 S14 30.00S WCI 25 TC 1
LACON* SUNNY 34 22 61 S12 30.00S WCI 25 TC 1
LINCOLN* SUNNY 37 23 57 S14 30.02S WCI 29 TC 3
SPRINGFIELD SUNNY 39 25 57 S14G24 30.01S WCI 31 TC 4
TAYLORVILLE SUNNY 37 27 65 S17G23 30.02S WCI 28 TC 3
ILZ033-039-045-046-055>057-062-063-181600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 34 22 61 S17 30.06R WCI 23 TC 1
DANVILLE* CLOUDY 31 24 76 S16 30.09F WCI 20 TC 0
RANTOUL* MOSUNNY 33 23 67 S18 30.06S WCI 21 TC 0
MATTOON CLOUDY 35 24 64 S16G30 30.04F WCI 25 TC 2
PARIS* CLOUDY 32 22 64 S16 30.09F WCI 22 TC 0
ILZ079-100>102-181600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 43 28 56 S14 30.03S TC 6
BELLEVILLE MOSUNNY 45 30 56 SW17 30.04S TC 7
CAHOKIA* SUNNY 45 28 51 S15 30.03F TC 7
SPARTA* MOSUNNY 42 29 58 S16G24 30.08S TC 6
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 44 27 51 S14 30.10S TC 7
CAIRO* CLOUDY 45 32 60 S10G16 30.15R TC 7
EFFINGHAM* PTSUNNY 38 26 63 S8G16 30.09F WCI 32 TC 3
MARION CLOUDY 43 25 49 S16 30.12R TC 6
MT. VERNON N/A 42 27 55 S13 30.10S TC 6
CENTRALIA* CLOUDY 42 27 55 S14 30.07F TC 6
SALEM* CLOUDY 42 26 53 S17G24 30.06F TC 6
ILZ067-068-072-073-078-083-087-091-181600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 37 23 56 S18 30.13S WCI 27 TC 3
FLORA* MOSUNNY 37 28 70 S17 30.09F WCI 28 TC 3
FAIRFIELD* CLOUDY 39 29 67 S13 30.12S WCI 31 TC 4
HARRISBURG* CLOUDY 41 25 51 S7 30.14S TC 5
ROBINSON* PTSUNNY 37 23 56 S16 30.12S WCI 28 TC 3
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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