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 28 2024, 09:30) Minimum Maximum
Temperature 48.6°F 45.0°F @ 09:35 48.6°F @ 09:20
Dewpoint 44.1°F 40.2°F @ 09:35 44.4°F @ 20:20
Humidity 85% 82% @ 16:00 88% @ 11:25
Pressure 29.76 in Hg 29.72 in Hg @ 03:30 29.91 in Hg @ 13:15
Aeronautical 30.23 in Hg 30.20 in Hg @ 03:30 30.38 in Hg @ 13:15
Wind Speed 8.7 mph 0.7 mph @ 18:10 11.4 mph @ 09:05
Peak Gust 17.9 mph 1.6 mph @ 18:10 20.4 mph @ 08:55
Wind Chill 40.5°F 36.5°F @ 08:00 48.2°F @ 17:30
Wind Dir 345° (from the NNW)
Rain 0.00 in

The value -99.9 represents invalid or missing data.


Weather Plots (5-minute, english units)

/net/weather/web-data/nsf/plots/nsf_tdryE.png /net/weather/web-data/nsf/plots/nsf_rh.png /net/weather/web-data/nsf/plots/nsf_cpres0E.png /net/weather/web-data/nsf/plots/nsf_wspdE.png /net/weather/web-data/nsf/plots/nsf_wdir.png /net/weather/web-data/nsf/plots/nsf_rainaE.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.