Navigation

Alerts

Washington, DC
 Details for Washington, DC Coastal Flood Advisory
 Montgomery Cnty(C+SE), MD
 Details for Montgomery Cnty(C+SE), MD Test Message
 Montgomery Cnty(NW), MD
 Details for Montgomery Cnty(NW), MD Test Message

Mobile Weather

Get Cliftonvaweather SmartPhone Weather
QRCODE CVAWX
Scan With Phone's QR Code Reader

NOAA KHB36 Manassas

  • KHB36 Manassas

NOAA WXM42 Hagerstown

  • WXM42 Hagerstown

External Links

  • WXForum.net

Site Participation Links

  • Mid-Atlantic Weather Network
  • APRS/CWOP
  • Blitzortung.org
  • pws weather
  • UK Met Office WOW
Coastal Flood Advisory COASTAL FLOOD ADVISORY - Washington, DC
Test Message TEST MESSAGE - Montgomery Cnty(C+SE), MD  - Montgomery Cnty(NW), MD

WASHINGTON DC METRO AREA FORECAST DISCUSSION
Low pressure will drift off the Carolina Coast through today. High pressure will build overhead Monday into Tuesday. A cold front will approach from the Midwest Wednesday, then cross by Friday.

Current DC Area Radar & North America Lightning


Northeast US Radar

Regional Radar

North America Lightning

North America Lightning Strikes
Radar image courtesy of NWS. Lightning Data courtesy of Blitzortung.org and its Contributors.
spacer

Current Clifton Virginia Conditions & NWS Forecast

Updated: @ 19-May-2024 8:00am - next update at 8:10am  
Temperature Summary Outlook
Currently: 61.9, Max: 61.9, Min: 59.9 61.9°F
Warmer 0.5°F than last hour.

Comfortable

Feels like: 62°F

24-hr difference
1.5°FWarmer 1.5°F than yesterday at this time.
  Today Yesterday
High: 61.9°F
7:59am 		63.7°F
5:34pm
Low: 59.9°F
12:10am 		59.9°F
10:40am
High & Low May 2024
High:  91.3°F
02 May at 3:37 PM
Low:  45.0°F
11 May at 7:10 AM
Max Min:  66.0°F
07 May
Min Max:  56.9°F
04 May
High and Low 2024
High:  92.6°F
29 April at 2:44 PM
Low:  8.9°F
17 January at 7:32 AM
Max Min:  66.0°F
07 May
Min Max:  26.5°F
20 January
Record May
High:  93.7°F
at 3:47 PM on 31 May 2022
Low:  32.0°F
at 3:46 AM on 10 May 2020
Max Min:  72.0°F
at 11:59 PM on 27 May 2015
Min Max:  51.3°F
at 2:37 PM on 09 May 2020
Station All Time Record
High:  101.5°F
at 3:56 PM on 06 September 2023
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:  61.9°F
Coldest Wind Chill
Today:  59.9°F
at 12:10am
Yesterday:  59.8°F
at 11:13am
May 2024  45.0°F
11 May at 7:10 AM
2024  3.7°F
17 January at 9:00 AM
Station May  27.4°F
at 7:06 AM on 09 May 2020
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: 1.5 Degree Days
Yesterday: 3.3 Degree Days
Cooling Degree Days
Today: 0.0 Degree Days
Yesterday: 0.0 Degree Days
Heat Index
Now:  61.9°F
Warmest Heat Index
Today:  61.9°F
at 07:59
Yesterday:  63.7°F
at 17:34
May 2024  94.4°F
02 May at 2:27 PM
2024  97.4°F
29 April at 2:39 PM
Station Record May  105.0°F
at 1:55 PM on 26 May 2021
Station All Time  122.6°F
at 3:16 PM on 28 July 2023
Records began on 24 December 2012
WeatherCam Thumbnail
North North West Camera
North North West WeatherCam
Overcast Overcast
Calm E
0.0
Gust:
 0.0 mph
0 Bft - Calm
Today: 1.0 mph 3:02am
Gust Month: 16.0 mph May 12
Rain Today:  0.00 in
Rain Rate /hr  0.00 in
Rain Last Hour:  0.00 in
Rain 24hrs:  0.32 in
Wind

Station High May 2024
High Gust:  16.0 mph
12 May at 12:01 PM
High Average:  14.0 mph
12 May at 5:00 PM
Station High 2024
High Gust:  28.0 mph
10 March at 5:26 PM
High Average:  14.0 mph
12 May at 5:00 PM
Station Record May
High Gust:  27.2 mph
at 3:33 PM on 26 May 2017
High Average:  15.1 mph
at 2:07 PM on 08 May 2016
Station All Time Record
High Gust:  42.2 mph
at 12:56 PM on 04 January 2018
High Average:  24.3 mph
at 1:07 PM on 02 March 2018
Records began on 24 December 2012
Wind Run

Today:  0.0 miles
Yesterday:  7.5 miles
Highest Wind Run
May 2024  42.0 miles
12 May
2024  106.4 miles
28 February
May  139.2 miles
on 13 May 2015
Station All Time  284.2 miles
on 02 March 2018
Records began on 24 December 2012

Rain
Rain Today: 0.00 in
Rain Rate (/hr): 0.00 in
Rain Yesterday: 0.49 in
This Month: 2.23 in
Season Total: 13.52 in
1 day since last rain.

Days Since Last Dry Day: 1
Station High May 2024
High Day:  0.55 in
04 May
High Hour:  0.30 in
12 May at 12:19 AM
High Rain Rate /hr:  2.74 in
11 May at 11:42 PM
Station High 2024
High Day:  1.53 in
09 January
High Hour:  0.33 in
28 January at 1:30 AM
High Rain Rate /hr:  2.81 in
30 April at 10:09 PM
Station Record May
High Day:  2.46 in
on 31 May 2018
High Hour:  2.16 in
at 6:26 PM on 31 May 2018
High Rain Rate /hr:  7.29 in
at 8:36 PM on 26 May 2021
Station All Time Record
High Day:  5.17 in
on 21 July 2018
High Hour:  2.21 in
at 4:13 PM on 22 July 2020
High Rain Rate /hr:  64.00 in
at 10:49 AM on 19 October 2021
High Month:  10.27 in
July 2018
Records began on 24 December 2012
WeatherCam Thumbnail
South South West Camera
South South West WeatherCam
Today

Today: Patchy Fog then Mostly Cloudy
Patchy Fog then Mostly Cloudy
Tonight

Tonight: Isolated Rain Showers then Patchy Fog
Isolated Rain Showers then Patchy Fog
Monday

Monday: Patchy Fog then Mostly Sunny
Patchy Fog then Mostly Sunny
Hi 75 °F Lo 57 °F Hi 77 °F
Lightning VA MD DC WV DE

Viginia Lighting
Radar Washington DC Metro Area

  GRLevel3 radar from NWS station KLWX

Storm Prediction Center Activity Chart

SPC Activity

Humidity & Barometer
Humidity: 97 %  
Dew Point: 61.0°F Increased 1.1°F since last hour.
Barometer: 30.007 inHg Rising 0.01 inHg/hr
Baro Trend: Rising slowly
Today
Pressure High:  30.007 in
Pressure Low:  29.958 in
Dewpoint High:  61.0 °F
Dewpoint Low:  58.5 °F
Humidity High:  97%
Humidity Low:  95%
Station Record
Pressure High:  31.410 in
at 12:14 PM on 23 March 2017
Pressure Low:  28.987 in
at 7:41 AM on 07 February 2020
Dewpoint High:  82.0 °F
at 1:58 PM on 12 July 2021
Dewpoint Low:  -27.0 °F
at 1:57 AM on 20 February 2015
Records began on 24 December 2012
Snow

Snow Depth: 0.0 in
Snowfall Today: No Snow Today
Storm Total: 0.0 in
Total Season Snow: 10.00 in
Total Last Season: 0.0 in
Fire Danger
firedanger
Almanac
Sunrise: 5:53am
Sunset: 8:19pm
Moonset: 3:46am
Moonrise: 4:43pm

Day Length:  14:24
Dawn:  05:23
Dusk:  20:49
Daylight Length:  15:26
 There will be 1min 40s more daylight tomorrow

Cloud Base

cloudbase
CB: 204 ft
UV Index

   0.5   
 Low 
High: 0.5 @ 7:56am

Solar Radiation
146 W/m2
High: 146 @  7:59am

Air Quality Index
Current AQI
52
Moderate

Sunlight

14 hrs 25 min 46 sec
of Sunlight Today
Which is
1 min 38 sec Longer
Than Yesterday
(Noon) graph (Midnight)
 Legend

Moon


Waxing Gibbous
Waxing Gibbous, Moon at 10 days in cycle
85% %
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 Wind Direction Thumbnail Temperature Graph Thumbnail Temp Min/Max Graph Thumbnail Humidity Graph Thumbnail Pressure Graph Thumbnail
Today's Rainfall Graph Thumbnail Rain Graph Thumbnail Daily Rain Graph Thumbnail Solar Radiation Graph Thumbnail UV Index Graph Thumbnail Sunshine Hours Graph Thumbnail
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

Today: Patchy Fog then Mostly Cloudy
Patchy Fog then Mostly Cloudy

Hi 75 °F		 NWS forecast: Patchy fog before 8am. Mostly cloudy, with a high near 75. North wind 2 to 6 mph.
Davis VP+ forecast: Increasing clouds with little temperature change.		   Tonight

Tonight: Isolated Rain Showers then Patchy Fog
Isolated Rain Showers then Patchy Fog

Lo 57 °F		 NWS forecast: Isolated rain showers before 9pm, then patchy fog. Mostly cloudy, with a low around 57. East wind around 3 mph. Chance of precipitation is 20%.
 NWS Weather Forecast  - Five Day Outlook for Today through Thursday - Last Update: Sun, 19-May-2024 5:49am EDT
Today

Today: Patchy Fog then Mostly Cloudy
Patchy Fog then Mostly Cloudy
Tonight

Tonight: Isolated Rain Showers then Patchy Fog
Isolated Rain Showers then Patchy Fog
Monday

Monday: Patchy Fog then Mostly Sunny
Patchy Fog then Mostly Sunny
Monday
Night
Monday Night: Mostly Clear then Patchy Fog
Mostly Clear then Patchy Fog
Tuesday

Tuesday: Patchy Fog then Sunny
Patchy Fog then Sunny
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday

Wednesday: Sunny
Sunny
Wednesday
Night
Wednesday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Thursday

Thursday: Partly Sunny then Chance Showers And Thunderstorms
Partly Sunny then Chance Showers And T-Storms
Hi 75 °F Lo 57 °F Hi 77 °F Lo 56 °F Hi 82 °F Lo 60 °F Hi 86 °F Lo 67 °F Hi 86 °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
Blowing Snow Advisory - Widespread blowing snow with winds 25 to 35 mph, occasionally reducing visibility to 1/4 mile or less.

Today in Weather History

Weather History for May 19
 
1898   In Marathon County, WI, 30 miles of farms and forest were leveled by what was likely an F5 tornado. A dozen people were killed, including 5 people from one family.
1980   Mount Saint Helens, in Washington State, erupted, spewing ash and smoke nearly 63,000 feet into the air. Heavy ash covered the ground as small particles were carried by the winds all the way to the Atlantic coast.