758
ASUS43 KLOT 182006
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 PM CDT MON MAY 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.
ILZ001-002-007-009-015-016-024-182100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 75 63 66 SW15 29.82F TC 24
STERLING* CLOUDY 78 63 59 SW15G24 29.83S HX 80 TC 26
SAVANNA* CLOUDY 78 64 61 SW12G17 29.81F HX 80 TC 26
ILZ003-004-008-010-011-017-018-182100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 79 62 56 SW15G29 29.83S HX 80 TC 26
FREEPORT* PTSUNNY 78 65 65 W17 29.84S TC 25
ROCHELLE* CLOUDY 81 59 47 SW25 29.84F HX 81 TC 27
DE KALB* CLOUDY 78 64 62 SW20G25 29.86F TC 25
PERU* CLOUDY 75 66 73 SW13 29.86S TC 24
ILZ005-006-012>014-019>023-182100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 79 63 57 SW18G31 29.83S HX 80 TC 26
CHICAGO-MIDWAY PTSUNNY 79 62 56 SW20G36 29.85S HX 80 TC 26
AURORA CLOUDY 78 66 66 SW13G24 29.85S HX 80 TC 26
JOLIET* CLOUDY 76 66 71 SW9G20 29.87F TC 25
WAUKEGAN PTSUNNY 80 63 55 SW24G33 29.81S HX 81 TC 27
DUPAGE AIRPORT PTSUNNY 78 66 66 SW18G25 29.84S HX 80 TC 26
KANKAKEE* CLOUDY 72 65 77 SW14 29.92S TC 22
WHEELING PTSUNNY 79 64 60 SW13G23 29.84S HX 81 TC 26
MORRIS* CLOUDY 75 64 69 SW14 29.87F TC 24
ROMEOVILLE* SUNNY 77 66 69 S18G28 29.88R TC 25
LANSING* CLOUDY 75 65 69 S17G29 29.89R TC 24
NORTHERLY ISL* N/A 79 60 52 S13 N/A HX 80 TC 26
LMZ740>746-182100-
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)
WINTHROP HARBOR 50 1015.2 2/ 3
WAUKEGAN HARBOR 53 230/ 14/ 21 1010.4 1/ 3
WILMETTE BUOY 60 170/ 10/ 14 1011.7F 2/ 3
CHICAGO BUOY 66 56 210/ 10/ 16 1009.5S 1/ 3
HARRISON CRIB 72 200/ 13/ 14 N/A
NORTHERLY ISL 76 220/ 9/ 12 N/A
CALUMET HARBOR 77 190/ 15/ 20 1011.0F
BURNS HARBOR 74 200/ 11/ 16 1011.9S
MICHIGAN CITY 75 190/ 19/ 21 1009.9R
ST. JOSEPH BUOY 60 190/ 8/ 10 1012.5R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-182100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 67 62 84 S21G33 29.87R TC 19
GALESBURG* CLOUDY 72 64 75 W8 29.87R TC 22
MACOMB* CLOUDY 72 65 79 CALM 29.88R TC 22
JACKSONVILLE* CLOUDY 64 64 100 S18G26 29.90F TC 18
PITTSFIELD* PTSUNNY 65 65 98 S15G21 29.96R TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-182100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 73 66 78 MISG 29.91R TC 23
BLOOMINGTON CLOUDY 68 65 90 SW21 29.91R TC 20
DECATUR LGT RAIN 67 64 90 SW18G26 29.92F TC 19
PEORIA NOT AVBL
LACON* CLOUDY 73 61 66 SW10 29.86F TC 23
LINCOLN* LGT RAIN 69 68 98 S16G26 29.86F TC 21
SPRINGFIELD LGT RAIN 67 64 90 S21G35 29.91F TC 19
TAYLORVILLE CLOUDY 66 64 94 SW8 29.95F TC 19
ILZ033-039-045-046-055>057-062-063-182100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN LGT RAIN 68 65 90 S20 29.94F TC 20
DANVILLE* CLOUDY 71 67 88 S20 29.95F TC 21
RANTOUL* LGT RAIN 69 65 85 S15G21 29.91F TC 21
MATTOON LGT RAIN 68 67 96 S9 29.98F TC 20
PARIS* LGT RAIN 67 66 97 S13 30.01F TC 20
ILZ079-100>102-182100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON TSTM 66 64 94 N5 30.01F TC 19
BELLEVILLE CLOUDY 68 68 100 CALM 30.02F TC 20
CAHOKIA* CLOUDY 67 65 93 S7 30.01F TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-182100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* PTSUNNY 87 72 60 S10G16 30.00F HX 93 TC 31
EFFINGHAM* LGT RAIN 67 67 100 E5 30.04S TC 20
MARION CLOUDY 77 72 83 SW7 30.00F TC 25
MT. VERNON TSTM 68 66 93 NE12 30.04R FOG TC 20
CENTRALIA* TSTM 67 66 98 CALM 30.06R VSB 1/2 TC 19
SALEM* CLOUDY 68 68 100 CALM 30.05R TC 20
METROPOLIS* PTSUNNY 78 70 76 S5 30.03R HX 80 TC 26
ILZ067-068-072-073-078-083-087-091-182100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE LGT RAIN 69 67 93 NW13 30.01F TC 21
FLORA* RAIN 68 N/A N/A N5 30.04S FOG TC 20
FAIRFIELD* CLOUDY 70 65 85 N10 30.03R TC 21
HARRISBURG* CLOUDY 83 71 66 SW15G23 30.00F HX 87 TC 28
ROBINSON* LGT RAIN 68 68 100 W6 30.03R FOG TC 20
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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