Aeronautical Observation: Automated synoptic observations via NWS Gateway.
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Waterloo Reservoir Number 1, IL Regional Weather
Expires:202608192300;;014561
ASUS43 KLOT 192212
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 PM CDT WED AUG 19 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.
ILZ079-100>102-192300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BELLEVILLE PTSUNNY 82 76 83 CALM 29.89F HX 89 TC 28
CAHOKIA* CLOUDY 80 73 79 CALM 29.91F HX 84 TC 27
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SKY/WX - Weather TMP - Temperature DP - Dew Point RH - Humidity WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph