Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 120912
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 AM CDT MON MAY 12 2025
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.
* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
REPORT WEATHER SUCH AS PRECIPITATION OR FOG.
ILZ001-002-007-009-015-016-024-121000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 49 43 80 E5 30.05F TC 9
STERLING* CLOUDY 52 46 80 E9 30.08F TC 11
$$
ILZ003-004-008-010-011-017-018-121000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 54 39 57 VRB3 30.11F TC 12
ROCHELLE* CLEAR 54 40 57 E7 30.10S TC 12
DE KALB* CLEAR 51 41 70 E3 30.12S TC 10
PERU* PTCLDY 54 43 67 NE6 30.08F TC 12
$$
ILZ005-006-012>014-019>023-121000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 51 41 68 N5 30.11F TC 11
CHICAGO-MIDWAY PTCLDY 54 44 69 E3 30.11F TC 12
AURORA CLEAR 50 40 68 NE3 30.09F TC 10
JOLIET* PTCLDY 55 45 68 CALM 30.11S TC 13
WAUKEGAN CLEAR 43 39 86 NE3 30.13S TC 6
DUPAGE AIRPORT PTCLDY 48 40 73 CALM 30.10F TC 9
KANKAKEE* PTCLDY 53 44 72 E5 30.10F TC 12
WHEELING CLEAR 46 41 82 CALM 30.13F TC 8
MORRIS* PTCLDY 51 43 75 CALM 30.09S TC 11
ROMEOVILLE* PTCLDY 57 45 62 E6 30.11F TC 14
LANSING* PTCLDY 45 43 95 CALM 30.12F TC 7
NORTHERLY ISL* N/A 54 43 66 NE5 N/A TC 12
$$
LMZ740>746-121000-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
HARRISON CRIB 56 90/ 5/ 6 N/A
NORTHERLY ISL 54 20/ 4/ 4 N/A
CALUMET HARBOR 49 360/ 3/ 3 1018.8
BURNS HARBOR 60 120/ 6/ 10 1020.3S
MICHIGAN CITY 57 120/ 6/ 9 1019.0F
ST. JOSEPH BUOY 54 51 120/ 10/ 14 1020.8F 1
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-121000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 61 45 55 E8 30.00F TC 16
GALESBURG* PTCLDY 59 43 56 E6 30.05F TC 15
MACOMB* PTCLDY 55 46 71 NE8 30.05S TC 13
JACKSONVILLE* MOCLDY 56 48 72 E8 30.01F TC 14
PITTSFIELD* PTCLDY 58 47 67 N3 30.01F TC 15
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-121000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 57 45 63 E9 30.08F TC 14
BLOOMINGTON MOCLDY 55 48 77 NE10 30.06F TC 13
DECATUR MOCLDY 61 52 72 E6 30.03F TC 16
PEORIA MOCLDY 60 47 61 E9 30.04F TC 16
LACON* PTCLDY 54 42 64 CALM 30.06S TC 12
LINCOLN* MOCLDY 59 50 71 CALM 30.03F TC 15
SPRINGFIELD CLOUDY 60 51 72 E7 30.01F TC 16
TAYLORVILLE MOCLDY 64 52 63 MISG 30.00F TC 18
$$
ILZ033-039-045-046-055>057-062-063-121000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 61 50 67 NE12 30.04F TC 16
RANTOUL* MOCLDY 59 48 67 E9 30.06F TC 15
MATTOON CLOUDY 60 53 77 E7 30.01F TC 16
PARIS* MOCLDY 61 50 65 CALM 30.03F TC 16
$$
ILZ079-100>102-121000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 64 52 66 NE3 29.98F TC 18
BELLEVILLE MOCLDY 65 54 68 NE3 29.94F TC 18
CAHOKIA* CLOUDY 60 55 83 CALM 29.96F TC 16
SPARTA* MOCLDY 63 58 84 E5 29.97F TC 17
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-121000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 64 58 80 E3 29.96F TC 18
CAIRO* CLOUDY 66 65 98 CALM 29.95F TC 19
EFFINGHAM* MOCLDY 64 53 67 NE5 30.01F TC 18
MARION MOCLDY 64 55 74 SE3 29.98S TC 18
MT. VERNON CLOUDY 61 59 93 CALM 29.97F TC 16
CENTRALIA* CLOUDY 63 58 83 E5 29.97F TC 17
SALEM* MOCLDY 66 52 59 CALM 29.97F TC 19
METROPOLIS* LGT RAIN 64 63 97 MISG 29.97F TC 18
$$
ILZ067-068-072-073-078-083-087-091-121000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 63 53 70 NE6 30.00F TC 17
FLORA* MOCLDY 64 54 68 NE3 29.99S TC 18
FAIRFIELD* CLOUDY 64 53 66 CALM 29.98F TC 18
HARRISBURG* CLOUDY 63 58 86 SW3 29.99R TC 17
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$