Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 012206
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 PM CDT THU OCT 01 2026
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.
ILZ001-002-007-009-015-016-024-012300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE LGT RAIN 65 63 93 N10G17 29.91R TC 18
STERLING* LGT RAIN 64 64 100 NE7 29.92R TC 18
SAVANNA* RAIN 64 64 100 N6 29.94R TC 18
$$
ILZ003-004-008-010-011-017-018-012300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD LGT RAIN 63 62 97 N6 29.93R FOG TC 17
FREEPORT* CLOUDY 64 63 95 N5 29.95S TC 18
ROCHELLE* RAIN 63 63 100 N10 29.92R TC 17
DE KALB* RAIN 62 62 100 N13 29.91R TC 17
$$
ILZ005-006-012>014-019>023-012300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE RAIN 64 62 93 N15 29.88S FOG TC 18
CHICAGO-MIDWAY LGT RAIN 65 64 97 N12 29.88S FOG TC 18
AURORA RAIN 64 63 96 N14 29.88R FOG TC 18
JOLIET* DRIZZLE 71 71 100 CALM 29.87S TC 22
WAUKEGAN LGT RAIN 63 62 97 N7 29.89S TC 17
DUPAGE AIRPORT HVY RAIN 64 62 93 NE12 29.89S FOG TC 18
KANKAKEE* CLOUDY 74 70 88 NW5 29.87F TC 23
WHEELING RAIN 63 62 97 N7G17 29.91S FOG TC 17
LANSING* LGT RAIN 70 69 96 W3 29.88S TC 21
NORTHERLY ISL* N/A 63 61 93 N13 N/A TC 17
$$
LMZ740>746-012300-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
WINTHROP HARBOR 63 62 350/ 12/ 16 1009.0F 2/ 3
WAUKEGAN HARBOR 63 64 330/ 14/ 17 1012.9F 2/ 4
WILMETTE BUOY 64 30/ 12/ 16 1014.2R 2/ 4
CHICAGO BUOY 65 64 360/ 14/ 19 1011.0R 1/ 2
HARRISON CRIB 64 360/ 18/ 20 N/A
NORTHERLY ISL 64 330/ 8/ 9 N/A
CALUMET HARBOR 64 340/ 10/ 14 1011.8F
MICHIGAN CITY 67 240/ 7/ 8 1010.6S
MICH CITY BUOY 66 63 270/ 6/ 6 N/A 1
ST. JOSEPH BUOY 65 62 280/ 6/ 8 1012.6R 0
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-012300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY RAIN 69 68 96 W5 29.88S FOG TC 21
GALESBURG* LGT RAIN 64 64 100 N15 29.91R TC 18
MACOMB* RAIN 70 70 100 W6 29.89S TC 21
JACKSONVILLE* PTSUNNY 77 68 73 NW7 29.85F TC 25
PITTSFIELD* DRIZZLE 75 68 78 NW7 29.87S TC 24
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-012300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 72 72 100 CALM 29.86F TC 22
BLOOMINGTON CLOUDY 76 68 76 W6 29.88S TC 24
DECATUR CLOUDY 85 65 51 SW8 29.85F HX 86 TC 29
PEORIA LGT RAIN 70 69 97 W8 29.87S FOG TC 21
LACON* LGT RAIN 70 67 92 SW5 29.86R TC 21
SPRINGFIELD CLOUDY 79 68 69 NW8 29.85S HX 81 TC 26
TAYLORVILLE NOT AVBL
$$
ILZ033-039-045-046-055>057-062-063-012300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN LGT RAIN 78 66 66 S16G26 29.87S HX 80 TC 26
RANTOUL* CLOUDY 82 65 56 N5 29.86F HX 84 TC 28
MATTOON PTSUNNY 86 64 47 S10G21 29.87F HX 87 TC 30
PARIS* PTSUNNY 86 62 43 SW15G21 29.87F HX 86 TC 30
$$
ILZ079-100>102-012300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 88 63 42 S13 29.83F HX 88 TC 31
BELLEVILLE SUNNY 89 64 42 S14 29.81F HX 90 TC 32
CAHOKIA* PTSUNNY 90 64 42 VRB5 29.82F HX 91 TC 32
SPARTA* MOSUNNY 88 61 40 S10G16 29.88S HX 88 TC 31
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-012300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 90 64 43 S20G28 29.87 HX 91 TC 32
CAIRO* MOSUNNY 91 67 44 S9G17 29.89F HX 93 TC 33
EFFINGHAM* PTSUNNY 86 63 45 SE8 29.89S HX 86 TC 30
MT. VERNON PTSUNNY 90 64 42 S17 29.88S HX 91 TC 32
CENTRALIA* PTSUNNY 92 60 34 SW18 29.86F HX 91 TC 33
SALEM* N/A 91 64 41 MISG 29.87F HAZE HX 92
METROPOLIS* MOSUNNY 90 63 40 SE7 29.91F HX 91 TC 32
$$
ILZ067-068-072-073-078-083-087-091-012300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTSUNNY 86 66 51 S15 29.89F HX 88 TC 30
FLORA* PTSUNNY 88 64 45 S14 29.88F HX 89 TC 31
FAIRFIELD* PTSUNNY 89 61 39 S13 29.89S HX 88 TC 32
HARRISBURG* PTSUNNY 89 64 43 S9 29.90F HX 90 TC 32
ROBINSON* PTSUNNY 88 66 48 S10 29.88F HX 90 TC 31
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$