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Radar image courtesy of Weather Underground. Lightning Data courtesy of Blitzortung.org and its Contributors.
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Current Clifton Virginia Conditions & NWS Forecast

Updated: @ 08-Dec-2016 6:45pm - next update at 7:00pm  
Temperature Summary Outlook
Currently: 38.8, Max: 47.7, Min: 30.6 38.8°F
Colder 2.8°F than last hour.

Cold

Feels like: 39°F

24-hr difference
0.3°FWarmer 0.3°F than yesterday at this time.
  Today Yesterday
High: 47.7°F
3:27pm
46.0°F
6:29pm
Low: 30.6°F
12:26am
31.3°F
11:59pm
High & Low December 2016
High:  61.2°F
01 December at 12:08 AM
Low:  30.6°F
08 December at 12:26 AM
Max Min:  42.8°F
01 December
Min Max:  42.1°F
06 December
High and Low 2016
High:  100.4°F
25 July at 2:12 PM
Low:  7.9°F
14 February at 7:16 AM
Max Min:  77.5°F
13 August
Min Max:  24.8°F
13 February
Record December
High:  74.8°F
at 1:41 PM on 13 December 2015
Low:  19.6°F
at 3:36 AM on 31 December 2014
Max Min:  63.0°F
at 11:40 PM on 24 December 2015
Min Max:  35.2°F
at 1:49 PM on 20 December 2014
Station All Time Record
High:  100.4°F
at 2:12 PM on 25 July 2016
Low:  1.0°F
at 7:23 AM on 23 January 2014
Max Min:  77.5°F
at 6:27 AM on 13 August 2016
Min Max:  16.7°F
at 12:04 PM on 16 February 2015
Records began on 24 December 2012
Wind Chill
Now:  38.8°F
Coldest Wind Chill
Today:  30.6°F
at 00:26
Yesterday:  31.3°F
at 23:59
December 2016  30.6°F
08 December at 12:26 AM
2016  3.9°F
19 January at 7:30 AM
Station December  19.6°F
at 3:36 AM on 31 December 2014
Station All Time  -15.8°F
at 1:57 AM on 21 February 2015
Records began on 24 December 2012
Degree Days
Heating Degree Days
Today: 19.2 Degree Days
Yesterday: 25.5 Degree Days
Cooling Degree Days
Today: 0.0 Degree Days
Yesterday: 0.5 Degree Days
Heat Index
Now:  38.8°F
Warmest Heat Index
Today:  47.7°F
at 15:27
Yesterday:  45.0°F
at 18:29
December 2016  61.2°F
01 December at 12:08 AM
2016  113.8°F
13 August at 1:07 PM
Station Record December  74.8°F
at 1:41 PM on 13 December 2015
Station All Time  114.2°F
at 12:45 PM on 19 July 2013
Records began on 24 December 2012
Few Clouds Few Clouds
 Wind from NNW NNW
2.8
Gust:
5.0 mph
1 Bft - Light air
Today: 15.1 mph 3:47pm
Gust Month: 26.0 mph December 3
Rain Today:  0.00 in
Rain Rate /hr  0.00 in
Rain Last Hour:  0.00 in
Rain 24hrs:  0.00 in
Wind
Station High December 2016
High Gust:  26.0 mph
03 December at 10:49 AM
High Average:  11.2 mph
03 December at 10:58 AM
Station High 2016
High Gust:  35.1 mph
03 April at 12:53 AM
High Average:  16.7 mph
22 October at 11:53 AM
Station Record December
High Gust:  26.0 mph
at 1:50 AM on 19 December 2015
High Average:  13.0 mph
at 2:12 AM on 19 December 2015
Station All Time Record
High Gust:  39.3 mph
at 10:04 PM on 14 February 2015
High Average:  20.1 mph
at 5:25 AM on 15 February 2015
Records began on 24 December 2012
Wind Run
Today:  29.3 miles
Yesterday:  26.2 miles
Highest Wind Run
December 2016  98.5 miles
03 December
2016  200.4 miles
22 October
December  116.2 miles
on 21 December 2015
Station All Time  246.9 miles
on 15 February 2015
Records began on 24 December 2012
Rain
Rain Today: 0.00 in
Rain Rate (/hr): 0.00 in
Rain Yesterday: 0.00 in
This Month: 1.20 in
Season Total: 28.51 in
2 days since last rain.
Days Since Last Dry Day: 0
Station High December 2016
High Day:  0.94 in
06 December
High Hour:  0.27 in
06 December at 4:17 PM
High Rain Rate /hr:  0.48 in
06 December at 3:59 PM
Station High 2016
High Day:  1.18 in
03 June
High Hour:  1.15 in
03 June at 6:22 PM
High Rain Rate /hr:  5.03 in
03 June at 5:35 PM
Station Record December
High Day:  0.94 in
on 06 December 2016
High Hour:  0.27 in
at 4:17 PM on 06 December 2016
High Rain Rate /hr:  1.44 in
at 5:45 PM on 25 December 2015
Station All Time Record
High Day:  3.02 in
on 30 April 2014
High Hour:  1.98 in
at 4:12 PM on 20 March 2015
High Rain Rate /hr:  5.03 in
at 5:35 PM on 03 June 2016
High Month:  7.18 in
April 2014
Records began on 24 December 2012
Tonight

Tonight: Mostly clear, with a low around 26. Northwest wind 13 to 15 mph, with gusts as high as 23 mph.
Mostly Clear
Friday

Friday: Sunny, with a high near 39. Northwest wind 13 to 17 mph, with gusts as high as 26 mph.
Sunny
Friday
Night
Friday Night: Mostly clear, with a low around 25. West wind 7 to 14 mph, with gusts as high as 20 mph.
Mostly Clear
Lightning VA MD DC WV DE
Viginia Lighting
Radar Washington DC Metro Area
Local Radar
Storm Prediction Center Activity Chart
SPC Activity
Humidity & Barometer
Humidity: 36 % Increased 1.0% since last hour.
Dew Point: 14.2°F Decreased 0.6°F since last hour.
Barometer: 30.10 inHg Rising 0.03  inHg/hr
Baro Trend: Rising
Today
Pressure High:  30.11 in
Pressure Low:  29.98 in
Dewpoint High:  36.3 °F
Dewpoint Low:  12.7 °F
Humidity High:  93%
Humidity Low:  26%
Station Record
Pressure High:  30.85 in
at 10:04 AM on 28 February 2015
Pressure Low:  29.12 in
at 5:28 PM on 12 March 2014
Dewpoint High:  79.7 °F
at 11:26 AM on 19 July 2013
Dewpoint Low:  -27.0 °F
at 1:57 AM on 20 February 2015
Records began on 24 December 2012
Snow
Snow Depth:  0 in
Snowfall Today:  No Snow Today
Storm Total: 0.0 in
Total Season Snow: 0.0 in
Total Last Season: 34.0 in
Fire Danger
firedanger
Almanac
Sunrise: 7:16am
Sunset: 4:48pm
Moonset: 12:44am
Moonrise: 1:21pm
Day Length:  09:32
Dawn:  06:46
Dusk:  17:17
Daylight Length:  10:31
 There will be 0min 49s less daylight tomorrow
Cloud Base
cloudbase
CB: 5600 ft
UV Index Forecast Today
08-Dec-2016
1.7     Low 
UV Index Forecast Tomorrow
09-Dec-2016
1.6     Low 
Air Quality Index
Current AQI 28
Good
Sunlight
9 hrs 31 min 20 sec
of Sunlight Today
Which is 45 sec Shorter
Than Yesterday

(Noon)
graph (Midnight)
Legend
Moon
Waxing Gibbous
Waxing Gibbous, Moon at 9 days in cycle
65%
Illuminated
Trends
These graphs present the temperature, pressure, rainfall, and wind speed trends for the last 12 hours.
The thumbnail graphs are sampled every ten minutes.
The large graphs are sampled every minute.
Weather Graphs
Click on a thumbnail to display the corresponding larger graph in the panel above.
Wind Graph Thumbnail Temperature Graph Thumbnail Pressure Graph Thumbnail Rain Graph Thumbnail
Wind Direction Thumbnail Temp Min/Max Graph Thumbnail Humidity Graph Thumbnail Today's Rainfall Graph Thumbnail Daily Rain Graph Thumbnail
 NWS Weather Forecast  - Outlook: Tonight & Friday
Tonight

Tonight: Mostly clear, with a low around 26. Northwest wind 13 to 15 mph, with gusts as high as 23 mph.
Mostly Clear

Lo 26 °F
NWS forecast: Mostly clear, with a low around 26. Northwest wind 13 to 15 mph, with gusts as high as 23 mph.
  Friday

Friday: Sunny, with a high near 39. Northwest wind 13 to 17 mph, with gusts as high as 26 mph.
Sunny

Hi 39 °F
NWS forecast: Sunny, with a high near 39. Northwest wind 13 to 17 mph, with gusts as high as 26 mph.
 NWS Weather Forecast  - Five Day Outlook for Tonight through Monday Night - Last Update: 6:27 pm EST Dec 8, 2016
Tonight

Tonight: Mostly clear, with a low around 26. Northwest wind 13 to 15 mph, with gusts as high as 23 mph.
Mostly Clear
Friday

Friday: Sunny, with a high near 39. Northwest wind 13 to 17 mph, with gusts as high as 26 mph.
Sunny
Friday
Night
Friday Night: Mostly clear, with a low around 25. West wind 7 to 14 mph, with gusts as high as 20 mph.
Mostly Clear
Saturday

Saturday: Sunny, with a high near 38. West wind 7 to 10 mph.
Sunny
Saturday
Night
Saturday Night: Partly cloudy, with a low around 25. Northwest wind around 6 mph becoming calm  in the evening.
Partly Cloudy
Sunday

Sunday: Mostly cloudy, with a high near 41.
Mostly Cloudy
Sunday
Night
Sunday Night: A chance of rain.  Cloudy, with a low around 34. Chance of precipitation is 50%.
Chance Rain
Monday

Monday: A chance of rain.  Mostly cloudy, with a high near 50. Chance of precipitation is 50%.
Chance Rain
Monday
Night
Monday Night: Partly cloudy, with a low around 35.
Partly Cloudy
Lo 26 °F Hi 39 °F Lo 25 °F Hi 38 °F Lo 25 °F Hi 41 °F Lo 34 °F Hi 50 °F Lo 35 °F

NWS Forecast Maps

NOAA Forecast Map for Today


Forecast Map for Today

NOAA Forecast Map for Tomorrow


Forecast Map for Tomorrow
Forecast map for Today courtesy of NOAA. Forecast map for Tomorrow courtesy of NOAA.

Random Weather Facts

Weather Terms
Sleet - Sleet or ice pellets are solid grains of ice formed from the freezing of rain or the refreezing of melted snow, which bounce off the ground and other objects.