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

Updated: @ 30-Aug-2016 9:15am - next update at 9:20am  
Temperature Summary Outlook
Currently: 79.3, Max: 79.3, Min: 69.4 79.3°F
Warmer 2.8°F than last hour.

Warm

Feels like: 79°F

24-hr difference
-0.6°FColder 0.6°F than yesterday at this time.
  Today Yesterday
High: 79.3°F
9:11am
91.8°F
1:52pm
Low: 69.4°F
6:47am
67.8°F
6:09am
High & Low August 2016
High:  98.2°F
13 August at 3:26 PM
Low:  61.2°F
23 August at 4:53 AM
Max Min:  77.5°F
13 August
Min Max:  78.3°F
09 August
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 August
High:  98.2°F
at 3:26 PM on 13 August 2016
Low:  53.2°F
at 6:52 AM on 15 August 2014
Max Min:  77.5°F
at 6:27 AM on 13 August 2016
Min Max:  72.7°F
at 12:00 AM on 23 August 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:  79.3°F
Coldest Wind Chill
Today:  69.4°F
at 06:47
Yesterday:  67.8°F
at 06:09
August 2016  61.2°F
23 August at 4:53 AM
2016  3.9°F
19 January at 7:30 AM
Station August  -8.3°F
at 8:35 AM on 29 August 2015
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: 0.0 Degree Days
Yesterday: 0.0 Degree Days
Cooling Degree Days
Today: 3.5 Degree Days
Yesterday: 14.6 Degree Days
Heat Index
Now:  79.3°F
Warmest Heat Index
Today:  79.3°F
at 09:11
Yesterday:  95.1°F
at 13:52
August 2016  113.8°F
13 August at 1:07 PM
2016  113.8°F
13 August at 1:07 PM
Station Record August  113.8°F
at 1:07 PM on 13 August 2016
Station All Time  114.2°F
at 12:45 PM on 19 July 2013
Records began on 24 December 2012
Partly cloudy Partly cloudy
 Wind from NW NW
2.0
Gust:
4.1 mph
1 Bft - Light air
Today: 5.0 mph 1:28am
Gust Month: 27.2 mph August 17
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 August 2016
High Gust:  27.2 mph
17 August at 8:41 PM
High Average:  11.8 mph
21 August at 2:57 PM
Station High 2016
High Gust:  35.1 mph
03 April at 12:53 AM
High Average:  16.7 mph
03 April at 3:48 AM
Station Record August
High Gust:  27.2 mph
at 8:41 PM on 17 August 2016
High Average:  11.8 mph
at 2:57 PM on 21 August 2016
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:  5.5 miles
Yesterday:  20.4 miles
Highest Wind Run
August 2016  62.7 miles
10 August
2016  187.5 miles
23 January
August  73.8 miles
on 10 August 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: 2.23 in
Season Total: 22.59 in
9 days since last rain.
Days Since Last Dry Day: 0
Station High August 2016
High Day:  0.80 in
21 August
High Hour:  0.79 in
21 August at 3:40 PM
High Rain Rate /hr:  2.88 in
21 August at 2:54 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 August
High Day:  2.17 in
on 12 August 2014
High Hour:  0.87 in
at 7:22 PM on 20 August 2015
High Rain Rate /hr:  2.88 in
at 2:54 PM on 21 August 2016
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
Today

Today: Sunny, with a high near 89. North wind around 5 mph.
Sunny

Tonight

Tonight: Mostly clear, with a low around 68. Northeast wind around 6 mph becoming calm  in the evening.
Mostly Clear

Wednesday

Wednesday: Mostly sunny, with a high near 90. Calm wind becoming south around 5 mph in the afternoon.
Mostly Sunny

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: 60 % Decreased 11.0% since last hour.
Dew Point: 64.3°F Decreased 0.4°F since last hour.
Barometer: 30.16 inHg Rising 0.01  inHg/hr
Baro Trend: Rising slowly
Today
Pressure High:  30.17 in
Pressure Low:  30.10 in
Dewpoint High:  71.7 °F
Dewpoint Low:  63.1 °F
Humidity High:  84%
Humidity Low:  60%
Station Record
Pressure High:  30.85 in
at 10:04 AM on 28 February 2015
Pressure Low:  27.24 in
at 12:57 AM on 24 August 2016
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:  
Storm Total: 0.0 in
Total Season Snow: 0.0 in
Total Last Season: 34.0 in
Fire Danger
firedanger
Almanac
Sunrise: 6:37am
Sunset: 7:42pm
Moonrise: 4:48am
Moonset: 6:44pm
Day Length:  13:05
Dawn:  06:10
Dusk:  20:11
Daylight Length:  14:01
 There will be 2min 24s less daylight tomorrow
Cloud Base
cloudbase
CB: 3419 ft
UV Index Forecast Today
30-Aug-2016
7.8     High 
UV Index Forecast Tomorrow
31-Aug-2016
7.5     High 
Air Quality Index
Current AQI 24
Good
Sunlight
13 hrs 3 min 34 sec
of Sunlight Today
Which is
2 min 25 sec Shorter
Than Yesterday

(Noon)
graph (Midnight)
Legend
Moon
Waning Crescent
Waning Crescent, Moon at 26 days in cycle
3%
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: Today & Tonight
Today

Today: Sunny, with a high near 89. North wind around 5 mph.
Sunny


Hi 89 °F
NWS forecast: Sunny, with a high near 89. North wind around 5 mph.
  Tonight

Tonight: Mostly clear, with a low around 68. Northeast wind around 6 mph becoming calm  in the evening.
Mostly Clear


Lo 68 °F
NWS forecast: Mostly clear, with a low around 68. Northeast wind around 6 mph becoming calm in the evening.
 NWS Weather Forecast  - Five Day Outlook for Today through Saturday - Last Update: 7:27 am EDT Aug 30, 2016
Today

Today: Sunny, with a high near 89. North wind around 5 mph.
Sunny

Tonight

Tonight: Mostly clear, with a low around 68. Northeast wind around 6 mph becoming calm  in the evening.
Mostly Clear

Wednesday

Wednesday: Mostly sunny, with a high near 90. Calm wind becoming south around 5 mph in the afternoon.
Mostly Sunny

Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms between 10pm and 1am, then a chance of showers after 1am.  Mostly cloudy, with a low around 70. South wind around 6 mph becoming calm  after midnight.  Chance of precipitation is 30%.
Chance
Showers

Thursday

Thursday: A chance of showers, with thunderstorms also possible after 9am.  Partly sunny, with a high near 81. North wind 5 to 8 mph.  Chance of precipitation is 40%.
Chance
Showers then
Chance
T-storms
Thursday
Night
Thursday Night: A chance of showers and thunderstorms before 9pm.  Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Chance
T-storms then
Mostly Clear
Friday

Friday: Sunny, with a high near 81.
Sunny

Friday
Night
Friday Night: Mostly clear, with a low around 61.
Mostly Clear

Saturday

Saturday: Sunny, with a high near 82.
Sunny

Hi 89 °F Lo 68 °F Hi 90 °F Lo 70 °F Hi 81 °F Lo 62 °F Hi 81 °F Lo 61 °F Hi 82 °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.