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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: @ 29-Mar-2017 4:45pm - next update at 5:00pm  
Temperature Summary Outlook
Currently: 65.3, Max: 65.8, Min: 54.5 65.3°F
Warmer 0.2°F than last hour.

Comfortable

Feels like: 65°F

24-hr difference
-6.3°FColder 6.3°F than yesterday at this time.
  Today Yesterday
High: 65.8°F
4:07pm
71.8°F
2:32pm
Low: 54.5°F
8:11am
58.1°F
6:54am
High & Low March 2017
High:  88.0°F
28 March at 4:54 AM
Low:  20.3°F
15 March at 5:14 AM
Max Min:  58.1°F
28 March
Min Max:  32.7°F
15 March
High and Low 2017
High:  88.0°F
28 March at 4:54 AM
Low:  10.0°F
09 January at 2:00 AM
Max Min:  58.1°F
28 March
Min Max:  24.6°F
07 January
Record March
High:  88.0°F
at 4:54 AM on 28 March 2017
Low:  5.0°F
at 11:58 PM on 03 March 2014
Max Min:  61.5°F
at 6:31 AM on 10 March 2016
Min Max:  31.8°F
at 1:45 PM on 06 March 2015
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:  65.3°F
Coldest Wind Chill
Today:  52.9°F
at 8:17am
Yesterday:  58.1°F
at 6:54am
March 2017  11.5°F
15 March at 4:34 AM
2017  4.1°F
08 January at 2:24 AM
Station March  3.4°F
at 1:56 AM on 06 March 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: 3.6 Degree Days
Yesterday: 2.8 Degree Days
Cooling Degree Days
Today: 0.0 Degree Days
Yesterday: 1.6 Degree Days
Heat Index
Now:  65.3°F
Warmest Heat Index
Today:  65.8°F
at 16:07
Yesterday:  71.8°F
at 14:32
March 2017  80.1°F
25 March at 3:22 PM
2017  80.1°F
25 March at 3:22 PM
Station Record March  95.6°F
at 4:54 AM on 28 March 2017
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 N N
5.6
Gust:
9.2 mph
2 Bft - Light breeze
Today: 14.2 mph 10:42am
Gust Month: 30.1 mph March 8
Rain Today:  0.01 in
Rain Rate /hr  0.00 in
Rain Last Hour:  0.00 in
Rain 24hrs:  0.07 in
Wind
Station High March 2017
High Gust:  30.1 mph
08 March at 3:21 AM
High Average:  22.7 mph
22 March at 10:08 AM
Station High 2017
High Gust:  30.1 mph
08 March at 3:21 AM
High Average:  22.7 mph
22 March at 10:08 AM
Station Record March
High Gust:  30.1 mph
at 3:21 AM on 08 March 2017
High Average:  22.7 mph
at 10:08 AM on 22 March 2017
Station All Time Record
High Gust:  39.3 mph
at 10:04 PM on 14 February 2015
High Average:  22.7 mph
at 10:08 AM on 22 March 2017
Records began on 24 December 2012
Wind Run
Today:  64.3 miles
Yesterday:  31.7 miles
Highest Wind Run
March 2017  179.1 miles
14 March
2017  179.1 miles
14 March
March  179.1 miles
on 14 March 2017
Station All Time  246.9 miles
on 15 February 2015
Records began on 24 December 2012
Rain
Rain Today: 0.01 in
Rain Rate (/hr): 0.00 in
Rain Yesterday: 0.22 in
This Month: 1.64 in
Season Total: 4.93 in
0 day since last rain.
Days Since Last Dry Day: 3
Station High March 2017
High Day:  0.41 in
18 March
High Hour:  0.18 in
14 March at 2:23 PM
High Rain Rate /hr:  0.72 in
27 March at 8:48 PM
Station High 2017
High Day:  0.79 in
23 January
High Hour:  0.18 in
03 January at 8:38 AM
High Rain Rate /hr:  0.72 in
27 March at 8:48 PM
Station Record March
High Day:  18.24 in
on 28 March 2017
High Hour:  1.98 in
at 4:12 PM on 20 March 2015
High Rain Rate /hr:  1.92 in
at 9:59 AM on 12 March 2013
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
This
Afternoon
This Afternoon: Sunny
Sunny
Tonight

Tonight: Partly Cloudy
Partly Cloudy
Thursday

Thursday: Mostly Cloudy
Mostly Cloudy
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: 33 % Decreased 3.0% since last hour.
Dew Point: 35.5°F Decreased 2.3°F since last hour.
Barometer: 30.12 inHg Falling 0.01  inHg/hr
Baro Trend: Falling slowly
Today
Pressure High:  30.17 in
Pressure Low:  29.98 in
Dewpoint High:  57.7 °F
Dewpoint Low:  35.5 °F
Humidity High:  93%
Humidity Low:  33%
Station Record
Pressure High:  31.41 in
at 12:14 PM on 23 March 2017
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:  -58.6 °F
at 6:50 PM on 19 February 2017
Records began on 24 December 2012
Snow
Snow Depth: 0 in
Snowfall Today: No snow today
Storm Total: 0 in
Total Season Snow: 5.2 in
Total Last Season: 34.0 in
Fire Danger
firedanger
Almanac
Sunrise: 6:59am
Sunset: 7:31pm
Moonrise: 8:08am
Moonset: 9:23pm
Day Length:  12:32
Dawn:  06:32
Dusk:  19:57
Daylight Length:  13:25
 There will be 2min 32s more daylight tomorrow
Cloud Base
cloudbase
CB: 6777 ft
UV Index Forecast Today
29-Mar-2017

5.7  Medium 
UV Index Forecast Tomorrow
30-Mar-2017

6.2  High 
Air Quality Index
Current AQI 45
Good
Sunlight
12 hrs 33 min 59 sec
of Sunlight Today
Which is
2 min 32 sec Longer
Than Yesterday

(Noon)
graph (Midnight)
Legend
Moon
Waxing Crescent
Waxing Crescent, Moon at 2 days in cycle
4 %
Illuminated
Trends
These graphs present the temperature, pressure, rainfall, and wind speed trends for the last 24 hours.
The thumbnail graphs are sampled every ten minutes.
The large graphs are sampled every minute.
Weather Graphs
Click on weather description tab below to display the corresponding 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: This Afternoon & Tonight
This
Afternoon
This Afternoon: Sunny
Sunny

Hi 63 °F
NWS forecast: Sunny, with a high near 63. North northwest wind around 9 mph.
  Tonight

Tonight: Partly Cloudy
Partly Cloudy

Lo 39 °F
NWS forecast: Partly cloudy, with a low around 39. North northeast wind 5 to 8 mph.
 NWS Weather Forecast  - Five Day Outlook for This Afternoon through Sunday - Last Update: Wed, 29-Mar-2017 1:49pm EDT
This
Afternoon
This Afternoon: Sunny
Sunny
Tonight

Tonight: Partly Cloudy
Partly Cloudy
Thursday

Thursday: Mostly Cloudy
Mostly Cloudy
Thursday
Night
Thursday Night: Light Rain
Light Rain
Friday

Friday: Light Rain
Light Rain
Friday
Night
Friday Night: Light Rain then Rain Showers Likely
Light Rain then Rain Showers Likely
Saturday

Saturday: Rain Showers Likely
Rain Showers Likely
Saturday
Night
Saturday Night: Slight Chance Rain Showers then Partly Cloudy
Slight Chance Rain Showers then Partly Cloudy
Sunday

Sunday: Mostly Sunny
Mostly Sunny
Hi 63 °F Lo 39 °F Hi 54 °F Lo 44 °F Hi 60 °F Lo 47 °F Hi 61 °F Lo 42 °F Hi 62 °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.
Countdown to Summer
 Summer Solstice begins June 21st at 12:24am   EDT  
 

 

Random Weather Facts

Weather Terms
Degree Day - Gauges the amount of heating or cooling needed for a building using 65 degrees as a baseline. To compute degree days, the average temperature for a day is taken and referenced to 65. An average temperature of 50 yields 15 heating degree days, while an average temperature of 75 would yield 10 cooling degree days.

Today in Weather History

Weather History for March 29
 
1935
A severe duststorm blanketed Amarillo, TX, for 84 hours. During one six hour period the visibility was near zero. (28th-31st) (The Weather Channel)

1989
Thunderstorms produced torrential rains in northeastern Texas and southwestern Arkansas. Longview TX reported 14.16 inches of rain. More than eleven inches of rain at Henderson TX caused a dam to give way, and people left stranded in trees had to be rescued by boat. Total damage in northeastern Texas was estimated at 10 to 16 million dollars. (The National Weather Summary) (Storm Data)