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
Winds across the waters were increased as southerly gusts exceed Small Craft Advisory criteria through midweek. Otherwise, no major changes were made to the forecast.

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: @ 04-May-2026 6:10am - next update at 6:20am  
Temperature Summary Outlook
Currently: 47.8, Max: 48.9, Min: 43.8 47.8°F
Warmer 0.3°F than last hour.

Cool

Feels like: 48°F

24-hr difference
7°FWarmer 7.0°F than yesterday at this time.
  Today Yesterday
High: 48.9°F
4:53am
62.8°F
3:34pm
Low: 43.8°F
12:20am
38.9°F
7:07am
High & Low May 2026
High:  69.5°F
01 May at 2:22 PM
Low:  38.9°F
03 May at 7:07 AM
Max Min:  47.2°F
02 May
Min Max:  62.1°F
02 May
High and Low 2026
High:  94.0°F
16 April at 2:47 PM
Low:  5.2°F
27 January at 7:52 AM
Max Min:  66.9°F
04 April
Min Max:  18.4°F
25 January
Record May
High:  93.7°F
at 15:47 on 31 May 2022
Low:  32.0°F
at 03:46 on 10 May 2020
Max Min:  72.0°F
at 23:59 on 27 May 2015
Min Max:  51.3°F
at 14:37 on 09 May 2020
Station All Time Record
High:  101.9°F
at 15:51 on 02 August 2024
Low:  1.0°F
at 07:23 on 23 January 2014
Max Min:  78.1°F
at 06:58 on 23 June 2024
Min Max:  16.7°F
at 12:04 on 16 February 2015
Records began on 24 December 2012
Wind Chill
Now:  47.8°F
Coldest Wind Chill
Today:  43.8°F
at 12:20am
Yesterday:  38.9°F
at 7:07am
May 2026  38.9°F
03 May at 7:07 AM
2026  2.9°F
01 February at 8:34 AM
Station May  27.4°F
at 07:06 on 09 May 2020
Station All Time  °F
Records began on 24 December 2012
Degree Days
Heating Degree Days
Today: 4.7 Degree Days
Yesterday: 13.6 Degree Days
Cooling Degree Days
Today: 0.0 Degree Days
Yesterday: 0.0 Degree Days
Heat Index
Now:  47.8°F
Warmest Heat Index
Today:  48.9°F
at 04:53
Yesterday:  62.8°F
at 15:34
May 2026  69.5°F
01 May at 2:22 PM
2026  97.0°F
16 April at 3:01 PM
Station Record May  105.0°F
at 13:55 on 26 May 2021
Station All Time  124.4°F
at 13:24 on 25 June 2025
Records began on 24 December 2012
WeatherCam Thumbnail
North North West Camera
North North West WeatherCam
Mostly cloudy Mostly cloudy
 Calm -
0
Gust:
0 mph
0 Bft - Calm
Today: 2 mph 3:49am
Gust Month: 16 mph May 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 May 2026
High Gust:  16 mph
03 May at 3:13 PM
High Average:  4 mph
03 May at 10:16 AM
Station High 2026
High Gust:  29 mph
07 February at 10:28 AM
High Average:  10 mph
12 March at 11:03 AM
Station Record May
High Gust:  27 mph
at 15:33 on 26 May 2017
High Average:  15 mph
at 14:07 on 08 May 2016
Station All Time Record
High Gust:  42 mph
at 12:56 on 04 January 2018
High Average:  24 mph
at 13:07 on 02 March 2018
Records began on 24 December 2012
Wind Run

Today:  0.1 miles
Yesterday:  23.5 miles
Highest Wind Run
May 2026  36.7 miles
02 May
2026  101.4 miles
07 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: 0.00 in
This Month: 0.00 in
Season Total: 8.12 in
5 days since last rain.

Days Since Last Dry Day: 0
Station High May 2026
High Day:  0.00 in
01 May
High Hour:  0.00 in
01 May at 12:00 AM
High Rain Rate /hr:  0.00 in
01 May at 12:00 AM
Station High 2026
High Day:  1.35 in
16 March
High Hour:  0.78 in
16 March at 1:42 PM
High Rain Rate /hr:  5.76 in
16 March at 12:46 PM
Station Record May
High Day:  2.46 in
on 31 May 2018
High Hour:  2.16 in
at 18:26 on 31 May 2018
High Rain Rate /hr:  7.29 in
at 20:36 on 26 May 2021
Station All Time Record
High Day:  5.17 in
on 21 July 2018
High Hour:  2.21 in
at 16:13 on 22 July 2020
High Rain Rate /hr:  64.00 in
at 10:49 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
Overnight

Overnight: Mostly Cloudy
Mostly Cloudy
Monday

Monday: Sunny
Sunny
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Lo 40 °F Hi 76 °F Lo 59 °F
Lightning VA MD DC WV DE

Viginia Lighting
Radar Washington DC Metro Area

GRLevel3 radar images are not available at this time.

Storm Prediction Center Activity Chart

SPC Activity

Humidity & Barometer
Humidity: 70 % Increased 3.0% since last hour.
Dew Point: 38.5°F Increased 0.1°F since last hour.
Barometer: 29.98 inHg  
Baro Trend: Falling slowly
Today
Pressure High:  30.09 in
Pressure Low:  29.99 in
Dewpoint High:  33.1 °F
Dewpoint Low:  19.6 °F
Humidity High:  80%
Humidity Low:  40%
Station Record
Pressure High:  31.41 in
at 12:14 on 23 March 2017
Pressure Low:  28.99 in
at 07:41 on 07 February 2020
Dewpoint High:  82.7 °F
at 11:55 on 05 July 2024
Dewpoint Low:  -27.0 °F
at 01:57 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: 13.0 in
Total Last Season: 15.5 in
Fire Danger
firedanger
Almanac
Sunrise: 6:06am
Sunset: 8:06pm
Moonset: 7:30am
Moonrise: 11:25pm

Day Length:  13:56
Dawn:  05:40
Dusk:  20:34
Daylight Length:  14:54
 There will be 2min 3s more daylight tomorrow

Cloud Base

cloudbase
CB AGL: 2116 ft
UV Index

   0.0   
None
High: 0.0 @ 12:00am

Solar Radiation
0 W/m2
High: 0 @  12:00am

Air Quality Index
Current AQI
16
  Good

Sunlight

13 hrs 59 min 38 sec
of Sunlight Today
Which is
2 min 6 sec Longer
Than Yesterday

(Noon)
graph (Midnight)
Legend

Moon


Waning Gibbous
Waning Gibbous, Moon at 16 days in cycle
93% %
Illuminated
 NWS Weather Forecast  - Outlook: Overnight & Monday
Overnight

Overnight: Mostly Cloudy
Mostly Cloudy

Lo 40 °F
NWS forecast: Mostly cloudy, with a low around 40. South wind around 6 mph.
Davis VP+ forecast: Not available
  Monday

Monday: Sunny
Sunny

Hi 76 °F
NWS forecast: Sunny, with a high near 76. Southwest wind 5 to 12 mph, with gusts as high as 21 mph.
 NWS Weather Forecast  - Five Day Outlook for Overnight through Thursday Night - Last Update: Mon, 04-May-2026 4:53am EDT
Overnight

Overnight: Mostly Cloudy
Mostly Cloudy
Monday

Monday: Sunny
Sunny
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday

Tuesday: Sunny
Sunny
Tuesday
Night
Tuesday Night: Chance Rain Showers
Chance Rain Showers
Wednesday

Wednesday: Rain Showers
Rain Showers
Wednesday
Night
Wednesday Night: Showers And Thunderstorms
Showers And T-Storms
Thursday

Thursday: Rain Showers
Rain Showers
Thursday
Night
Thursday Night: Showers And Thunderstorms
Showers And T-Storms
Lo 40 °F Hi 76 °F Lo 59 °F Hi 84 °F Lo 63 °F Hi 77 °F Lo 53 °F Hi 61 °F Lo 44 °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
Frost Advisory - Widespread frost during the growing season. Frost generally occurs with fair skies and light winds.

Today in Weather History

Weather History for May 4
 
1968   A severe thunderstorm got in the way of a Braniff Airlines plane. The plane got caught in hail and severe turbulence. The storm killed 85 people.

1999   In less than 48 hours, a total of 76 tornadoes touched down across Oklahoma. An F5 tornado tracked for 40 miles, skirting south of Oklahoma City through the communities of Moore and Chickasaw. The tornadoes killed 42 people and caused $1 billion in damage It was the most expensive tornado outbreak in history of the United States.