Temperature
56 F at 1 AM; 81 F at its warmest, 4 PM Thursday, and 56 F at its coolest, 12 AM.
- Now
- 56F
- 1 AM
- Highest
- 81F
- 4 PM Thursday
- Lowest
- 56F
- 12 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
St. Louis Lambert International Airport, Missouri
Large airport in St. Louis County, Missouri56°
58°/48°
Light rain·
Feels like 56°·Moderate breeze 16 mph NW
Now. St. Louis Lambert International Airport is 56° and light rain at 2 AM. The dew point is 53°, so the air feels dry and comfortable. Moderate breeze from the northwest at 16 mph.
Today and tonight. It warms to about 58° by 5 PM. Tonight falls to about 42° by 7 AM, under a mostly clear sky.
The week. The warmest day ahead is Thursday, near 79°, and the coolest tomorrow, near 60°. The days ahead look dry.
The sky tonight. The sun sets at 6:22 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:22 PM. The next full Moon is Sunday, Oct 25. After dark, look for Saturn, bright in the east-southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The sky is forecast to stay clear: a good night to look up. The day is 11 hours 12 minutes long, 3 minutes shorter than yesterday.
0UV Low
19Air quality
90%Humidity
100%Cloud
Now
2:00 AM
56feels56
21%
16mph
Today
Oct 16
5848
21%
22mph
Sat
Oct 17
6042
14mph
UV 6
Sun
Oct 18
6639
UV 6
Mon
Oct 19
7143
overcast
Tue
Oct 20
7446
overcast
Wed
Oct 21
7749
overcast
Thu
Oct 22
7952
overcast
56°
58°48°
60°42°
66°39°
71°43°
74°46°
77°49°
79°52°
As of 2:00 AM in St. Louis Lambert International Airport, Missouri.
Air quality
The air at St. Louis Lambert International Airport
Index 19, good, led by fine particles. Read at 1 AM from its reporting area, Saint Louis (MO), 20 miles off.
19Good
- Fine particles (PM2.5)19Good9.5 mi
- Ozone18Good11 ppb6.3 mi
- Coarse particles (PM10)6Good11.3 mi
- Nitrogen dioxide1Good1.9 ppb4.2 mi
- Sulfur dioxide0Good0.2 ppb4.2 mi
- Carbon monoxide-0.1 ppm9.5 mi
The days ahead
Yesterday measured 40, good.
GoodModerate
- 40YesterdayOct 15
Smoke, the next 42 hours
No smoke near the ground through Sat 7 PM.
Precipitation
What has fallen at St. Louis Lambert International Airport
0.44 in in the last 24 hours, 1.00 in over the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.44in
- Last 3 days
- 1.00in
3 days agoLast 24 hours 44%
Visibility
How far you can see at St. Louis Lambert International Airport, the next 42 hours
Visibility stays 8 miles or more through Sat 7 PM, lowest 9 miles Fri 6 PM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- STL
- ICAO
- KSTL
- IATA
- STL
- Field elevation
- 618 ft
- Serves
- St Louis
- Kind
- Large airport
- Scheduled service
- Yes
- Its own instrument
- STL
- Wind now
- From 300° at 15 mph, read 16 Oct, 01:51
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 06 / 24 | 7,603 ft | 150 ft | Concrete | 63° / 243° | 8 mph head, on 24 | 13 mph from the right |
| 11 / 29 | 9,000 ft | 150 ft | Concrete | 122° / 302° | 15 mph head, on 29 | 1 mph from the left |
| 12L / 30R | 9,013 ft | 150 ft | Concrete | 122° / 302° | 15 mph head, on 30R | 1 mph from the left |
| 12R / 30L | 11,020 ft | 200 ft | Concrete | 122° / 302° | 15 mph head, on 30L | 1 mph from the left |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from St. Louis (STL), St. Louis Lambert International Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 52 F, the air 86% saturated; the humidity ran from 65% at 5 PM Thursday to 97% at 10 AM Thursday.
- Dew point now
- 52F
- 1 AM
- Humidity now
- 86%
- Humidity, range
- 65 to 97%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
13 mph from the west northwest at 1 AM; at its strongest 19 mph, 10 PM Thursday, with a gust of 43 mph at 9 PM Thursday.
- Now
- 13mph
- from the west northwest
- Strongest
- 19mph
- 10 PM Thursday
- Highest gust
- 43mph
- 9 PM Thursday
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
30.10 inHg at 1 AM, rising 0.10 inHg over 3 hours; 0.05 inHg higher than a day before.
- Now
- 30.10inHg
- 1 AM
- 3 hours
- +0.10inHg
- rising
- 24 hours
- +0.05inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
Down to 0.8 miles at 9 AM Thursday, under a mile for 1 hour; 9 miles now.
- Now
- 9mi
- Lowest
- 0.8mi
- 9 AM Thursday
- Hours under a mile
- 1
How it is measured: Fog types, Field Book FB-WAT-020
Cloud base
The lowest cloud base came down to 400 ft at 10 AM Thursday; a base was reported in 22 of the hours.
- Lowest base now
- -
- Lowest in 24 hours
- 400ft
- 10 AM Thursday
- Hours with a base reported
- 22
How it is measured: Cloud classification, Field Book FB-SKY-001
Precipitation
0.59 in measured in the gauge, the most, 0.29 in, in the hour to 9 AM Thursday.
- Last 24 hours
- 0.59in
- Wettest hour
- 0.29in
- 9 AM Thursday
- Hours with some
- 9
How it is measured: ASOS, Field Book FB-INS-002
St. Louis: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 5 instruments nearest St. Louis Lambert International Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.
measured now3 instruments
St. LouisSTL
At an airfield/0.3 mi away/561 ft/57 ft below here
temp, wind, gust, visibility, precip, pressure
St. CharlesSCLM7
At a river or reservoir gauge/6.1 mi away/443 ft/175 ft below here
temp, wind, gust, humidity, pressure
Shaw Nature ReserveS2227
At a soil climate station/30.1 mi away/623 ft/5 ft above here
temp, humidity, soil temp, soil moisture
measured daily2 instruments
Edmundson 0.7 NNWMO-FSA-189
In a volunteer observer's own ground/0.4 mi away/581 ft/37 ft below here
precip, snowfall, snow depth
Saint CharlesSCHM7
At a cooperative observer's station/7.4 mi away/551 ft/67 ft below here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
-
Snow on the ground
Elsewhere in Missouri
24 places, each with its own forecast and its own instruments.
BransoncityCape GirardeaucityColumbiacityHannibalcityHidden Valleyski areaIndependencecityJefferson CitycityJoplincityKansas CitycityKirksvillecityLake of the OzarksfeatureMark Twain National ForestfeatureMaryvillecityPoplar BluffcityRollacitySedaliacitySikestoncitySnow Creekski areaSpringfieldcitySt CharlescitySt JosephcitySt LouiscityTable Rock LakefeatureWest Plainscity
Near St. Louis Lambert International Airport
The nearest places, each with its own forecast and the instruments nearest it.
- Edmundsoncity, 1 mi
- Woodson Terracecity, 2 mi
- St. Anncity, 2 mi
- Berkeleycity, 2 mi
- Breckenridge Hillscity, 2 mi
- St. Johncity, 2 mi
- Bridgetoncity, 3 mi
- Hazelwoodcity, 3 mi
- Kinlochcity, 3 mi
- Calverton Parkcity, 3 mi
- Overlandcity, 3 mi
- Sycamore Hillsvillage, 3 mi
Airports near St. Louis Lambert International Airport
- St Charles County Regional Airport/Smartt FieldSET, 13 mi
- Spirit of St Louis AirportSUS, 16 mi
- Washington Regional AirportFYG, 35 mi
- Sullivan Regional AirportUUV, 56 mi
- Perryville Regional AirportPCD, 67 mi
- Farmington Regional AirportFAM, 68 mi
- Mexico Memorial AirportMYJ, 83 mi
- Rolla National AirportVIH, 87 mi