National Science Foundation Weather
NSF headquarters

Alexandria, Virginia Local Weather

National Science Foundation


The following weather conditions were observed by the weather station at the National Science Foundation, Division of Atmospheric and Geospace Sciences in Alexandria, Virginia, USA.
Quick Control (more options at bottom)
Status: Operational.
Most Recent Previous 24 hours
(Mar 29 2024, 08:20) Minimum Maximum
Temperature 7.9°C 4.8°C @ 06:55 11.0°C @ 17:05
Dewpoint -4.5°C -7.4°C @ 01:25 6.8°C @ 10:15
Humidity 41% 30% @ 01:20 85% @ 08:20
Pressure 1006 hPa 1004 hPa @ 19:50 1010 hPa @ 11:15
Aeronautical 1022 hPa 1020 hPa @ 19:50 1026 hPa @ 11:15
Wind Speed 0.5 m/s 0.2 m/s @ 05:10 8.3 m/s @ 12:45
Peak Gust 1.5 m/s 0.8 m/s @ 06:50 14.5 m/s @ 12:40
Wind Chill 7.9°C -0.4°C @ 12:45 10.5°C @ 22:45
Wind Dir 42° (from the NE)
Rain 0.0 mm

The value -99.9 represents invalid or missing data.


Weather Plots (5-minute, metric units)

/net/weather/web-data/nsf/plots/nsf_tdry.png /net/weather/web-data/nsf/plots/nsf_rh.png /net/weather/web-data/nsf/plots/nsf_cpres0.png /net/weather/web-data/nsf/plots/nsf_wspd.png /net/weather/web-data/nsf/plots/nsf_wdir.png /net/weather/web-data/nsf/plots/nsf_raina.png

Site: Fields: Units: Display period:


The realtime information is updated every five minutes. Weekly plots are generated just after 2 pm and 2 am (Eastern Time) every day, while monthly plots are only generated just after 2 am (Eastern Time).

More Links

This www weather station was designed at the Earth Observing Laboratory
of the National Center for Atmospheric Research in Boulder, Colorado, USA, an
NSF funded organization.

Email the Station Administrator if you have administrative or operational questions.


Contact Nick Anderson nanderso@nsf.gov at NSF for more information.