Temperature
77 F at 2 AM; 83 F at its warmest, 3 PM Thursday, and 71 F at its coolest, 4 AM Thursday.
- Now
- 77F
- 2 AM
- Highest
- 83F
- 3 PM Thursday
- Lowest
- 71F
- 4 AM Thursday
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Louisville Muhammad Ali International Airport, Kentucky
Large airport in Jefferson County, Kentucky75°
63°/58°
Mostly cloudy·
Feels like 75°·Gentle breeze 10 mph SW
Now. Louisville Muhammad Ali International Airport is 75° and mostly cloudy at 3 AM. The dew point is 59°, so the air feels a little humid. Gentle breeze from the southwest at 10 mph.
Today and tonight. The warmest of the day has passed; it cools to about 54° by 8 PM. Tonight falls to about 44° by 8 AM, with some cloud. No rain is expected for the rest of the day. Air quality is moderate (index 58): fine for most people, though people unusually sensitive to air pollution may feel it outdoors.
The week. The warmest day ahead is Thursday, near 75°, and the coolest tomorrow, near 58°. The days ahead look dry.
The sky tonight. The sun sets at 7:04 PM. The Moon is a waxing crescent, 33% lit, and sets at 11:04 PM. The next full Moon is Monday, Oct 26. 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 day is 11 hours 13 minutes long, 2 minutes shorter than yesterday.
0UV Low
58Air quality
55%Humidity
87%Cloud
Now
3:00 AM
75feels75
now, partly cloudy
Today
Oct 16
6358
37%
16mph
Sat
Oct 17
5844
14mph
UV 6
Sun
Oct 18
6438
UV 6
Mon
Oct 19
6841
UV 6
Tue
Oct 20
7244
UV 6
Wed
Oct 21
7347
clear day
Thu
Oct 22
7547
clear day
75°
63°58°
58°44°
64°38°
68°41°
72°44°
73°47°
75°47°
As of 3:00 AM in Louisville Muhammad Ali International Airport, Kentucky.
Air quality
The air at Louisville Muhammad Ali International Airport
Index 58, moderate, led by fine particles. Read at 2 AM from its reporting area, Louisville (KY), 5 miles off.
58Moderate
- Fine particles (PM2.5)58Moderate-
- Ozone34Good-
- Coarse particles (PM10)44Good-
The days ahead
Good each day through Today, led by fine particles. Yesterday measured 60, moderate.
GoodModerate
- 60YesterdayOct 15
- GoodTodayOct 16
Smoke, the next 42 hours
Little smoke near the ground through Sat 8 PM: the index from smoke stays at 6 or under.
Precipitation
What has fallen at Louisville Muhammad Ali International Airport
0.80 in in the last 24 hours, 1.40 in over the last 3 days, to Fri 2 AM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.80in
- Last 3 days
- 1.40in
3 days agoLast 24 hours 57%
Visibility
How far you can see at Louisville Muhammad Ali International Airport, the next 42 hours
Visibility stays 8 miles or more through Sat 8 PM, lowest 9 miles Fri 6 AM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- SDF
- ICAO
- KSDF
- IATA
- SDF
- Field elevation
- 501 ft
- Serves
- Louisville
- Kind
- Large airport
- Scheduled service
- Yes
- Its own instrument
- SDF
- Wind now
- From 220° at 12 mph, read 16 Oct, 01:56
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 11 / 29 | 7,251 ft | 150 ft | Concrete | 111° / 291° | 4 mph head, on 29 | 11 mph from the left |
| 17L / 35R | 8,578 ft | 150 ft | Concrete | 165° / 345° | 7 mph head, on 17L | 10 mph from the right |
| 17R / 35L | 11,887 ft | 150 ft | Concrete | 165° / 345° | 7 mph head, on 17R | 10 mph from the right |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Louisville Intl (SDF), Louisville Muhammad Ali International Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 59 F, the air 54% saturated; the humidity ran from 54% at 12 AM to 99% at 4 AM Thursday.
- Dew point now
- 59F
- 2 AM
- Humidity now
- 54%
- Humidity, range
- 54 to 99%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
12 mph from the southwest at 2 AM; at its strongest 12 mph, 2 AM, and no gust reported.
- Now
- 12mph
- from the southwest
- Strongest
- 12mph
- 2 AM
- Highest gust
- -
- none reported
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
29.91 inHg at 2 AM, steady over 3 hours; 0.15 inHg lower than a day before.
- Now
- 29.91inHg
- 2 AM
- 3 hours
- -0.01inHg
- steady
- 24 hours
- -0.15inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
Down to 0.3 miles at 5 PM Thursday, under a mile for 1 hour; 10 miles or more now.
- Now
- 10+mi
- Lowest
- 0.3mi
- 5 PM 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 200 ft at 4 AM Thursday; a base was reported in 23 of the hours.
- Lowest base now
- -
- Lowest in 24 hours
- 200ft
- 4 AM Thursday
- Hours with a base reported
- 23
How it is measured: Cloud classification, Field Book FB-SKY-001
Precipitation
0.85 in measured in the gauge, the most, 0.82 in, in the hour to 5 PM Thursday.
- Last 24 hours
- 0.85in
- Wettest hour
- 0.82in
- 5 PM Thursday
- Hours with some
- 8
How it is measured: ASOS, Field Book FB-INS-002
Louisville Intl: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 4 instruments nearest Louisville Muhammad Ali International Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.5 miles away.
measured now2 instruments
At an airfield/0.5 mi away/479 ft/22 ft below here
temp, wind, gust, visibility, precip, pressure
US-31 at mile 7.305_31_007.3
Beside a road/9.5 mi away/-/- ft from here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Lynnview 3.2 WSWKY-JF-31
In a volunteer observer's own ground/1.7 mi away/474 ft/27 ft below here
precip, snowfall, snow depth
At a cooperative observer's station/6.2 mi away/653 ft/152 ft above here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
0in
Snow on the ground
Measured at Louisville Ky (LMK), 6.2 miles from here, read 15 Oct, 14:00. measured daily
Elsewhere in Kentucky
21 places, each with its own forecast and its own instruments.
AshlandcityBlack MountainfeatureBowling GreencityCorbincityCovingtoncityDaniel Boone National ForestfeatureElizabethtowncityFrankfortcityHopkinsvillecityLexingtoncityLondoncityLouisvillecityMammoth Cave National ParkfeatureMiddlesborocityMurraycityOwensborocityPaducahcityPikevillecityRed River GorgefeatureRichmondcitySomersetcity
Near Louisville Muhammad Ali International Airport
The nearest places, each with its own forecast and the instruments nearest it.
- Lynnviewcity, 1 mi
- Poplar Hillscity, 2 mi
- Audubon Parkcity, 2 mi
- Parkway Villagecity, 3 mi
- Watterson Parkcity, 3 mi
- South Park Viewcity, 4 mi
- Louisville/Jefferson Countycity, 4 mi
- West Buechelcity, 4 mi
- Strathmoor Manorcity, 4 mi
- Strathmoor Villagecity, 5 mi
- Shivelycity, 5 mi
- Wellingtoncity, 5 mi
Airports near Louisville Muhammad Ali International Airport
- Bowman FieldLOU, 6 mi
- Godman Army Air FieldFTK, 22 mi
- Samuels FieldBRY, 28 mi
- Addington Field / Elizabethtown Regional AirportEKX, 35 mi
- Capital City AirportFFT, 45 mi
- Lebanon Springfield Airport - George Hoerter Field6I2, 46 mi
- Breckinridge County AirportI93, 47 mi
- Taylor County AirportAAS, 61 mi