640
ASUS43 KLOT 121306
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 AM CDT THU MAR 12 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.
ILZ001-002-007-009-015-016-024-121400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 27 24 89 SW5 30.24S WCI 22 TC -3
STERLING* CLEAR 28 27 96 W8 30.23S WCI 20 TC -2
SAVANNA* CLEAR 29 24 80 W5 30.23S WCI 24 TC -1
ILZ003-004-008-010-011-017-018-121400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 29 23 78 W6 30.21R WCI 23 TC -2
FREEPORT* CLEAR 29 24 80 W6 30.21R WCI 23 TC -1
ROCHELLE* CLEAR 28 23 81 W9 30.21R WCI 20 TC -2
PERU* CLEAR 31 26 82 W8 30.23R WCI 24 TC 0
ILZ005-006-012>014-019>023-121400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 30 23 75 W6 30.17R WCI 24 TC -1
CHICAGO-MIDWAY PTCLDY 31 25 78 W10 30.19R WCI 22 TC -1
AURORA CLEAR 30 25 81 W13 30.18S WCI 20 TC -1
JOLIET* CLEAR 32 28 86 W5 30.21S WCI 27 TC 0
WAUKEGAN CLEAR 30 23 75 W6 30.16R WCI 24 TC -1
DUPAGE AIRPORT CLEAR 29 25 85 W8 30.17R WCI 21 TC -2
KANKAKEE* CLEAR 32 26 77 W12 30.23R WCI 23 TC 0
WHEELING CLEAR 31 24 75 W6 30.19R WCI 25 TC -1
MORRIS* CLEAR 30 26 85 W10 30.21R WCI 21 TC -1
ROMEOVILLE* CLEAR 30 28 93 SW9 30.20S WCI 22 TC -1
LANSING* CLEAR 30 25 83 W9 30.20R WCI 22 TC -1
NORTHERLY ISL* N/A 32 25 76 W3 N/A TC 0
LMZ740>746-121400-
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 33 260/ 15/ 16 N/A
NORTHERLY ISL 32 260/ 6/ 10 N/A
CALUMET HARBOR 30 220/ 5/ 7 1021.4
BURNS HARBOR 34 260/ 7/ 9 1022.0S
MICHIGAN CITY 34 260/ 18/ 21 1021.8R
ILZ025>027-034>036-040-047-049-050-058-095>099-121400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 29 25 85 SW5 30.28F WCI 24 TC -2
GALESBURG* CLEAR 29 29 100 W8 30.27S WCI 21 TC -1
MACOMB* CLEAR 28 26 92 SW5 30.30S WCI 23 TC -2
JACKSONVILLE* CLEAR 31 25 79 W3 30.30S TC 0
PITTSFIELD* CLEAR 33 26 76 W5 30.30F WCI 28 TC 1
ILZ028>032-037-038-041>044-048-051>054-059>061-121400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 31 26 81 W12 30.24R WCI 22 TC 0
BLOOMINGTON CLEAR 31 27 85 W13 30.26R WCI 21 TC -1
DECATUR CLEAR 33 26 75 W7 30.27R WCI 27 TC 1
PEORIA CLEAR 30 25 81 W3 30.26S TC -1
LACON* CLEAR 30 23 77 CALM 30.25R TC -1
LINCOLN* CLEAR 34 24 67 W7 30.28R WCI 28 TC 1
SPRINGFIELD CLEAR 32 27 81 W9 30.29R WCI 24 TC 0
TAYLORVILLE CLEAR 32 28 86 W8 30.30R WCI 25 TC 0
ILZ033-039-045-046-055>057-062-063-121400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 30 27 88 SW7 30.25R WCI 23 TC -1
DANVILLE* CLEAR 32 28 84 W6 30.25R WCI 26 TC 0
RANTOUL* CLEAR 31 26 82 W9 30.24R WCI 23 TC 0
MATTOON CLEAR 31 27 85 SW5 30.26R WCI 26 TC -1
PARIS* CLEAR 32 28 85 CALM 30.26R TC 0
ILZ079-100>102-121400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 32 27 80 W6 30.32R WCI 26 TC 0
BELLEVILLE CLEAR 33 29 87 SW5 30.31R WCI 28 TC 0
CAHOKIA* CLEAR 32 27 81 CALM 30.33R TC 0
SPARTA* CLEAR 33 29 88 W3 30.34R TC 0
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-121400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 33 31 92 CALM 30.33R TC 1
CAIRO* CLEAR 37 31 82 CALM 30.34S TC 3
EFFINGHAM* CLEAR 31 30 95 SW5 30.31R WCI 27 TC 0
MARION CLEAR 32 30 93 CALM 30.32S TC 0
MT. VERNON CLEAR 29 28 96 CALM 30.32S TC -2
CENTRALIA* CLEAR 32 31 93 SW5 30.32R WCI 28 TC 0
SALEM* CLEAR 33 30 86 CALM 30.31S TC 1
ILZ067-068-072-073-078-083-087-091-121400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 35 29 78 W6 30.29R WCI 30 TC 2
FLORA* CLEAR 32 30 93 W6 30.32R WCI 26 TC 0
FAIRFIELD* CLEAR 33 29 84 CALM 30.31S TC 1
HARRISBURG* CLEAR 33 29 85 CALM 30.33S TC 1
ROBINSON* CLEAR 34 30 86 W7 30.28R WCI 28 TC 1
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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