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Coastal Flood Advisory COASTAL FLOOD ADVISORY - Washington, DC
Small Craft Advisory SMALL CRAFT ADVISORY - Tidal Potomac
Test Message TEST MESSAGE - Montgomery Cnty(C+SE), MD  - Montgomery Cnty(NW), MD

WASHINGTON DC METRO AREA FORECAST DISCUSSION
An active pattern will continue through mid-week as multiple disturbances pass through the area. A cold front will move through toward the end of the week.

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.
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Current Clifton Virginia Conditions & NWS Forecast

Updated: @ 05-May-2024 1:40pm - next update at 1:50pm  
Temperature Summary Outlook
Currently: 62.1, Max: 62.1, Min: 52.4 62.1°F
Warmer 1.4°F than last hour.

Comfortable

Feels like: 62°F

24-hr difference
7.8°FWarmer 7.8°F than yesterday at this time.
  Today Yesterday
High: 62.1°F
1:39pm 		56.9°F
12:00am
Low: 52.4°F
12:06am 		51.6°F
4:50am
High & Low May 2024
High:  91.3°F
02 May at 3:37 PM
Low:  51.6°F
04 May at 4:50 AM
Max Min:  60.3°F
01 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:  63.0°F
30 April
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:  62.1°F
Coldest Wind Chill
Today:  52.4°F
at 12:06am
Yesterday:  50.8°F
at 6:27am
May 2024  50.8°F
04 May at 6:27 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: 5.6 Degree Days
Yesterday: 11.9 Degree Days
Cooling Degree Days
Today: 0.0 Degree Days
Yesterday: 0.0 Degree Days
Heat Index
Now:  62.1°F
Warmest Heat Index
Today:  62.1°F
at 13:39
Yesterday:  56.9°F
at 00:00
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
Wind from SSE SSE
0.2
Gust:
 2.0 mph
0 Bft - Calm
Today: 4.0 mph 1:02pm
Gust Month: 13.0 mph May 3
Rain Today:  0.25 in
Rain Rate /hr  0.00 in
Rain Last Hour:  0.00 in
Rain 24hrs:  0.27 in
Wind

Station High May 2024
High Gust:  13.0 mph
03 May at 5:26 PM
High Average:  3.6 mph
03 May at 5:31 PM
Station High 2024
High Gust:  28.0 mph
10 March at 5:26 PM
High Average:  9.0 mph
13 April at 9:00 AM
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:  0.8 miles
Yesterday:  5.5 miles
Highest Wind Run
May 2024  20.8 miles
03 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: 0.25 in
Rain Rate (/hr): 0.00 in
Rain Yesterday: 0.55 in
This Month: 0.81 in
Season Total: 12.10 in
0 day since last rain.

Days Since Last Dry Day: 1
Station High May 2024
High Day:  0.55 in
04 May
High Hour:  0.18 in
04 May at 2:46 AM
High Rain Rate /hr:  0.49 in
04 May at 9:16 AM
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
This
Afternoon
This Afternoon: Light Rain Likely
Light Rain Likely
Tonight

Tonight: Chance Rain Showers
Chance Rain Showers
Monday

Monday: Patchy Fog then Chance Showers And Thunderstorms
Patchy Fog then Chance Showers And T-Storms
Hi 68 °F Lo 63 °F Hi 80 °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: 61.2°F Increased 2.1°F since last hour.
Barometer: 30.129 inHg Falling 0.01 inHg/hr
Baro Trend: Falling slowly
Today
Pressure High:  30.201 in
Pressure Low:  30.128 in
Dewpoint High:  61.2 °F
Dewpoint Low:  51.3 °F
Humidity High:  98%
Humidity Low:  96%
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: 6:06am
Sunset: 8:06pm
Moonrise: 4:36am
Moonset: 5:27pm

Day Length:  13:59
Dawn:  05:38
Dusk:  20:35
Daylight Length:  14:57
 There will be 2min 5s more daylight tomorrow

Cloud Base

cloudbase
CB: 204 ft
UV Index

   2.2   
 Low 
High: 2.7 @ 12:40pm

Solar Radiation
253 W/m2
High: 341 @  12:45pm

Air Quality Index
Current AQI
24
Good

Sunlight

13 hrs 59 min 56 sec
of Sunlight Today
Which is
2 min 4 sec Longer
Than Yesterday
(Noon) graph (Midnight)
 Legend

Moon


Waning Crescent
Waning Crescent, Moon at 25 days in cycle
8% %
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: This Afternoon & Tonight
This
Afternoon
This Afternoon: Light Rain Likely
Light Rain Likely

Hi 68 °F		 NWS forecast: Rain likely before 2pm, then a chance of rain showers. Cloudy, with a high near 68. South wind 3 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Davis VP+ forecast: Increasing clouds with little temperature change. Precipitation possible within 24 to 48 hours		   Tonight

Tonight: Chance Rain Showers
Chance Rain Showers

Lo 63 °F		 NWS forecast: A chance of rain showers before 11pm, then a chance of rain showers and patchy fog between 11pm and 1am, then patchy fog and a slight chance of rain showers. Mostly cloudy, with a low around 63. South wind 3 to 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
 NWS Weather Forecast  - Five Day Outlook for This Afternoon through Thursday - Last Update: Sun, 05-May-2024 11:19am EDT
This
Afternoon
This Afternoon: Light Rain Likely
Light Rain Likely
Tonight

Tonight: Chance Rain Showers
Chance Rain Showers
Monday

Monday: Patchy Fog then Chance Showers And Thunderstorms
Patchy Fog then Chance Showers And T-Storms
Monday
Night
Monday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Tuesday

Tuesday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Tuesday
Night
Tuesday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Wednesday

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

Thursday: Showers And Thunderstorms
Showers And T-Storms
Hi 68 °F Lo 63 °F Hi 80 °F Lo 62 °F Hi 80 °F Lo 65 °F Hi 86 °F Lo 64 °F Hi 79 °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

Astronomy
One year on Pluto is equal to 248 Earth years.

Today in Weather History

Weather History for May 5
 
1812   A winter storm produced snow from Philadelphia to Maine. Keene, NH reported a foot of snow, while parts of Massachusetts reported 9 inches.
2007   The first EF-5 tornado of the 21st Century, and the first tornado of that strength to be classified under the new "EF" system, obliterated the town of Greensburg, KS. Eleven people were killed in the two-mile wide twister. The town then took the opportunity to completely rebuild itself according to environmentally "green" standards.