Aviation Digital Data Service (ADDS)

Output produced by METARs form (1602 UTC 21 September 2017)
found at http://www.aviationweather.gov/adds/metars/
 
METAR text: KSTL 211551Z 12004KT 10SM FEW200 BKN250 29/23 A3004 RMK AO2 SLP160 T02890228
Conditions at: KSTL (ST. LOUIS , MO, US) observed 1551 UTC 21 September 2017
Temperature: 28.9°C (84°F)
Dewpoint: 22.8°C (73°F) [RH = 70%]
Pressure (altimeter): 30.04 inches Hg (1017.4 mb)
[Sea-level pressure: 1016.0 mb]
Winds: from the ESE (120 degrees) at 5 MPH (4 knots; 2.1 m/s)
Visibility: 10 or more miles (16+ km)
Ceiling: 25000 feet AGL
Clouds: few clouds at 20000 feet AGL
broken clouds at 25000 feet AGL
Weather: no significant weather observed at this time