466
ASUS43 KLOT 181710
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 PM 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.
ILZ001-002-007-009-015-016-024-181800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 38 24 57 SW13 29.98R WCI 30 TC 3
STERLING* MOSUNNY 36 25 64 VRB5 30.01R WCI 32 TC 2
SAVANNA* SUNNY 33 23 66 S5 29.99R WCI 29 TC 1
ILZ003-004-008-010-011-017-018-181800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 32 24 72 S14 30.00F WCI 22 TC 0
FREEPORT* CLOUDY 33 25 71 S13 30.00R WCI 24 TC 1
ROCHELLE* CLOUDY 34 26 71 S10 30.00R WCI 26 TC 1
DE KALB* PTSUNNY 32 26 78 S16 30.00S WCI 21 TC 0
PERU* SUNNY 37 27 67 S12 30.00S WCI 30 TC 3
ILZ005-006-012>014-019>023-181800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 34 24 67 S15 30.00F WCI 24 TC 1
CHICAGO-MIDWAY PTSUNNY 34 24 67 S18G25 30.02F WCI 23 TC 1
AURORA SUNNY 34 25 69 S15 29.99F WCI 24 TC 1
JOLIET* MOSUNNY 37 29 71 S10 30.02F WCI 30 TC 3
WAUKEGAN CLOUDY 32 22 66 S15G24 29.99F WCI 22 TC 0
DUPAGE AIRPORT SUNNY 33 24 69 S17G25 30.00S WCI 22 TC 1
KANKAKEE* PTSUNNY 36 27 69 S13G23 30.05F WCI 28 TC 2
WHEELING MOSUNNY 33 23 66 S16 30.01F WCI 23 TC 1
MORRIS* SUNNY 36 27 70 S13G18 30.01F WCI 28 TC 2
ROMEOVILLE* SUNNY 34 27 75 S16 30.02F WCI 23 TC 1
LANSING* CLOUDY 33 25 72 SW17 30.04F WCI 22 TC 0
NORTHERLY ISL* N/A 32 23 70 SW14 N/A WCI 22 TC 0
LMZ740>746-181800-
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 31 200/ 21/ 23 N/A
NORTHERLY ISL 30 180/ 12/ 18 N/A
CALUMET HARBOR 31 170/ 10/ 17 1016.5F
BURNS HARBOR 31 180/ 10/ 13 1017.9F
MICHIGAN CITY 30 160/ 13/ 18 1017.9F
ILZ025>027-034>036-040-047-049-050-058-095>099-181800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 48 29 47 SW8 29.99R TC 9
GALESBURG* SUNNY 40 34 78 S8 30.00R TC 5
MACOMB* SUNNY 44 30 58 SW9 30.01S TC 7
JACKSONVILLE* SUNNY 50 29 43 SW12 30.00S TC 10
PITTSFIELD* SUNNY 52 32 45 SW8 30.00S TC 11
ILZ028>032-037-038-041>044-048-051>054-059>061-181800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC SUNNY 41 28 60 S16G22 30.01F TC 5
BLOOMINGTON SUNNY 43 30 60 S16 30.01S TC 6
DECATUR SUNNY 45 30 55 S15G26 30.02F TC 7
PEORIA SUNNY 42 29 59 SW9 30.00S TC 6
LACON* SUNNY 41 27 57 SW9 29.99F TC 5
LINCOLN* SUNNY 47 28 49 SW5 30.01F TC 8
SPRINGFIELD SUNNY 48 30 49 SW10 30.01S TC 9
TAYLORVILLE SUNNY 48 34 57 SW15 30.02F TC 9
ILZ033-039-045-046-055>057-062-063-181800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 42 30 62 S17 30.04F TC 6
DANVILLE* MOSUNNY 40 27 61 S17G23 30.07F TC 4
RANTOUL* SUNNY 41 29 62 S17G23 30.04F TC 5
MATTOON MOSUNNY 43 29 57 S18G33 30.03F TC 6
PARIS* MOSUNNY 40 28 61 S13G18 30.08F TC 5
ILZ079-100>102-181800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 52 30 43 S10 30.03S TC 11
BELLEVILLE SUNNY 54 33 44 W13 30.03F TC 12
CAHOKIA* SUNNY 54 30 40 SW10G18 30.02F TC 12
SPARTA* SUNNY 51 32 48 S10G17 30.07S TC 11
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 53 32 44 S20G32 30.08F TC 12
CAIRO* PTSUNNY 52 33 47 SW14G24 30.14F TC 11
EFFINGHAM* SUNNY 48 30 49 S12G18 30.07F TC 9
MARION MOSUNNY 50 28 43 S16G25 30.10F TC 10
MT. VERNON N/A 51 32 48 S17 30.07F TC 11
CENTRALIA* SUNNY 51 31 46 S16 30.05F TC 11
SALEM* SUNNY 51 32 48 SW16G23 30.05F TC 10
ILZ067-068-072-073-078-083-087-091-181800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 44 30 57 SW18 30.11F TC 7
FLORA* MOSUNNY 50 30 46 SW23 30.08F TC 10
FAIRFIELD* PTSUNNY 48 29 46 SW17 30.09F TC 9
HARRISBURG* CLOUDY 49 27 41 SW18G24 30.11F TC 10
ROBINSON* PTSUNNY 45 32 61 S16G23 30.10S TC 7
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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