Temperature
80 F at 10 AM; 85 F at its warmest, 1 PM Thursday, and 74 F at its coolest, 7 AM.
- Now
- 80F
- 10 AM
- Highest
- 85F
- 1 PM Thursday
- Lowest
- 74F
- 7 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Naval Station Mayport / Admiral David L McDonald Field, Florida
Medium airport in Duval County, Florida81°
86°/69°
Clear·
Feels like 82°·Light air 3 mph W
Coming up. Tomorrow is 11 degrees cooler: a high of 75° after 86° today.
Now. Naval Station Mayport / Admiral David L McDonald Field is 81° and clear at 12 PM. The dew point is 66°, so the air feels oppressive. Light air from the west at 3 mph.
Today and tonight. It warms to about 85° by 2 PM. Tonight falls to about 70° by 7 AM, under a mostly clear sky. No rain is expected for the rest of the day. The sun is strong around midday: UV index 7, high. Unprotected skin can burn in under half an hour.
The week. The warmest day ahead is tomorrow, near 75°, and the coolest Sunday, near 69°. The days ahead look dry. The windiest day is Sunday, with wind to 26 mph.
The sky tonight. The sun sets at 6:54 PM. The Moon is a waxing crescent, 33% lit, and sets at 11:12 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 sky is forecast to stay clear: a good night to look up. The day is 11 hours 27 minutes long, 2 minutes shorter than yesterday.
7UV High
36Air quality
55%Humidity
8%Cloud
Now
12:00 PM
81feels82
UV 7
Today
Oct 16
8669
UV 7
Sat
Oct 17
7569
14%
24mph
Sun
Oct 18
6961
15%
26mph
Mon
Oct 19
7059
14%
22mph
UV 6
Tue
Oct 20
7360
13mph
UV 7
Wed
Oct 21
7561
UV 7
Thu
Oct 22
7462
10%
UV 7
81°
86°69°
75°69°
69°61°
70°59°
73°60°
75°61°
74°62°
As of 12:00 PM in Naval Station Mayport / Admiral David L McDonald Field, Florida.
Air quality
The air at Naval Station Mayport / Admiral David L McDonald Field
Index 36, good, led by fine particles. Read at 12 PM from its reporting area, Jacksonville (FL), 15 miles off.
36Good
- Fine particles (PM2.5)36Good9.2 mi
- Ozone24Good42 ppb9.2 mi
- Coarse particles (PM10)17Good13.1 mi
- Nitrogen dioxide15Good16.2 ppb14.2 mi
- Sulfur dioxide0Good0.8 ppb13.1 mi
- Carbon monoxide-0.4 ppm14.2 mi
The days ahead
Good each day through Tue Oct 20, led by ozone. Yesterday measured 44, good.
GoodModerate
- 44YesterdayOct 15
- GoodTodayOct 16
- GoodSatOct 17
- GoodSunOct 18
- GoodMonOct 19
- GoodTueOct 20
Smoke, the next 45 hours
Little smoke near the ground through Sun 8 AM: the index from smoke stays at 17 or under.
Precipitation
What has fallen at Naval Station Mayport / Admiral David L McDonald Field
None in the last 3 days, to Fri 11 AM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.00in
- Last 3 days
- 0.00in
Visibility
How far you can see at Naval Station Mayport / Admiral David L McDonald Field, the next 45 hours
Visibility stays 7 miles or more through Sun 8 AM, lowest 8 miles Sat 2 AM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- NRB
- ICAO
- KNRB
- IATA
- NRB
- Field elevation
- 15 ft
- Serves
- Jacksonville
- Kind
- Medium airport
- Scheduled service
- No
- Its own instrument
- NRB
- Wind now
- Variable at 3 mph, read 16 Oct, 10:52
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 05 / 23 | 8,001 ft | 200 ft | Asphalt | 43° / 223° | - | - |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Mayport Ns (NRB), Naval Station Mayport / Admiral David L McDonald Field's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 69 F, the air 69% saturated; the humidity ran from 59% at 1 PM Thursday to 87% at 8 AM.
- Dew point now
- 69F
- 10 AM
- Humidity now
- 69%
- Humidity, range
- 59 to 87%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
3 mph at 10 AM; at its strongest 8 mph, 4 PM Thursday, and no gust reported.
- Now
- 3mph
- Strongest
- 8mph
- 4 PM Thursday
- Highest gust
- -
- none reported
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
30.09 inHg at 10 AM, steady over 3 hours; 0.02 inHg lower than a day before.
- Now
- 30.09inHg
- 10 AM
- 3 hours
- +0.02inHg
- steady
- 24 hours
- -0.02inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
10 miles or more every hour.
- Now
- 10+mi
- Lowest
- 10+mi
- Hours under a mile
- 0
How it is measured: Fog types, Field Book FB-WAT-020
Cloud base
The lowest cloud base came down to 1,000 ft at 8 AM; a base was reported in 12 of the hours.
- Lowest base now
- -
- Lowest in 24 hours
- 1,000ft
- 8 AM
- Hours with a base reported
- 12
How it is measured: Cloud classification, Field Book FB-SKY-001
Precipitation
None measured in the gauge in the last 24 hours.
- Last 24 hours
- 0.00in
- Wettest hour
- -
- Hours with some
- 0
How it is measured: ASOS, Field Book FB-INS-002
Mayport Ns: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 3 instruments nearest Naval Station Mayport / Admiral David L McDonald Field, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.0 miles away.
measured now1 instrument
Mayport NsNRB
At an airfield/0.0 mi away/16 ft/1 ft above here
temp, wind, gust, visibility, precip, pressure
measured daily2 instruments
Atlantic Beach 1.0 WNWFL-DV-105
In a volunteer observer's own ground/4.2 mi away/16 ft/1 ft above here
precip, snowfall, snow depth
Jacksonville BeachJCKF1
At a cooperative observer's station/7.2 mi away/16 ft/1 ft above here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
-
Snow on the ground
Elsewhere in Florida
25 places, each with its own forecast and its own instruments.
Apalachicola BayfeatureDaytona BeachcityEvergladesfeatureFlorida KeysfeatureFort LauderdalecityFort MyerscityGainesvillecityJacksonvillecityKey WestcityLake OkeechobeefeatureLakelandcityMelbournecityMiamicityNaplescityOcalacityOrlandocityPanama CitycityPensacolacitySarasotacitySt Augustine LighthouselighthouseTallahasseecityTampacityTampa BayfeatureVero BeachcityWest Palm Beachcity
Near Naval Station Mayport / Admiral David L McDonald Field
The nearest places, each with its own forecast and the instruments nearest it.
- Atlantic Beachcity, 4 mi
- Neptune Beachcity, 5 mi
- Jacksonville Beachcity, 8 mi
- Palm Valleycommunity, 13 mi
- Sawgrasscommunity, 13 mi
- Jacksonvillecity, 15 mi
- Fernandina Beachcity, 18 mi
- Yuleecommunity, 19 mi
- Nocateecommunity, 20 mi
- Fruit Covecommunity, 23 mi
- Orange Parktown, 23 mi
- Nassau Village-Ratliffcommunity, 24 mi
Airports near Naval Station Mayport / Admiral David L McDonald Field
- Jacksonville Executive at Craig AirportCRG, 7 mi
- Fernandina Beach Municipal AirportFHB, 15 mi
- Jacksonville International AirportJAX, 17 mi
- Jacksonville Naval Air Station (Towers Field)NIP, 19 mi
- Herlong AirportHEG, 24 mi
- Whitehouse Naval Outlying FieldNEN, 27 mi
- Cecil AirportVQQ, 29 mi
- Northeast Florida Regional AirportSGJ, 30 mi