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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
Forecast thinking largely remains on track, although SPC has expanded the Marginal Risk for severe thunderstorms slightly eastward. Small Craft Advisories were extended into this evening.

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: @ 13-May-2026 6:00am - next update at 6:10am  
Temperature Summary Outlook
Currently: 56.6, Max: 58.9, Min: 56.6 56.6°F
Colder 0.1°F than last hour.

Cool

Feels like: 57°F

24-hr difference
15.7°FWarmer 15.7°F than yesterday at this time.
  Today Yesterday
High: 58.9°F
12:00am 		73.5°F
3:39pm
Low: 56.6°F
5:56am 		40.6°F
6:39am
High & Low May 2026
High:  86.0°F
05 May at 2:51 PM
Low:  38.9°F
03 May at 7:07 AM
Max Min:  60.6°F
06 May
Min Max:  61.9°F
11 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:  56.6°F
Coldest Wind Chill
Today:  56.6°F
at 5:56am
Yesterday:  40.6°F
at 6:39am
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: 1.8 Degree Days
Yesterday: 9.2 Degree Days
Cooling Degree Days
Today: 0.0 Degree Days
Yesterday: 1.9 Degree Days
Heat Index
Now:  56.6°F
Warmest Heat Index
Today:  58.9°F
at 00:00
Yesterday:  73.5°F
at 15:39
May 2026  85.4°F
10 May at 2:27 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
Few Clouds Few Clouds
Wind from SE SE
2
Gust:
 8 mph
1 Bft - Light air
Today: 10 mph 4:55am
Gust Month: 19 mph May 5
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:  19 mph
05 May at 4:05 PM
High Average:  6 mph
05 May at 3:31 PM
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:  7.3 miles
Yesterday:  19.6 miles
Highest Wind Run
May 2026  45.0 miles
06 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: 0.49 in
Season Total: 8.61 in
2 days since last rain.

Days Since Last Dry Day: 0
Station High May 2026
High Day:  0.21 in
06 May
High Hour:  0.13 in
06 May at 9:48 AM
High Rain Rate /hr:  0.64 in
07 May at 12:15 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 Clear
Mostly Clear
Wednesday

Wednesday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Chance Showers And Thunderstorms then Showers And Thunderstorms
Chance Showers And T-Storms then Showers And T-Storms
Lo 55 °F Hi 76 °F Lo 52 °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: 63 % Increased 1.0% since last hour.
Dew Point: 44.1°F Decreased 0.7°F since last hour.
Barometer: 30.00 inHg Falling 0.01 inHg/hr
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: 5:57am
Sunset: 8:14pm
Moonrise: 3:46am
Moonset: 4:46pm

Day Length:  14:14
Dawn:  05:30
Dusk:  20:43
Daylight Length:  15:13
 There will be 1min 48s more daylight tomorrow

Cloud Base

cloudbase
CB AGL: 2830 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
20
Good

Sunlight

14 hrs 17 min 24 sec
of Sunlight Today
Which is
1 min 52 sec Longer
Than Yesterday
(Noon) graph (Midnight)
 Legend

Moon


Waning Crescent
Waning Crescent, Moon at 25 days in cycle
16% %
Illuminated
 NWS Weather Forecast  - Outlook: Overnight & Wednesday
Overnight

Overnight: Mostly Clear
Mostly Clear

Lo 55 °F		 NWS forecast: Mostly clear, with a low around 55. South wind around 12 mph, with gusts as high as 18 mph.
Davis VP+ forecast: Not available		   Wednesday

Wednesday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms

Hi 76 °F		 NWS forecast: A chance of rain showers between 3pm and 5pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 76. Southwest wind 12 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
 NWS Weather Forecast  - Five Day Outlook for Overnight through Saturday Night - Last Update: Wed, 13-May-2026 4:53am EDT
Overnight

Overnight: Mostly Clear
Mostly Clear
Wednesday

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

Thursday: Mostly Sunny
Mostly Sunny
Thursday
Night
Thursday Night: Partly Cloudy
Partly Cloudy
Friday

Friday: Sunny
Sunny
Friday
Night
Friday Night: Partly Cloudy
Partly Cloudy
Saturday

Saturday: Mostly Sunny
Mostly Sunny
Saturday
Night
Saturday Night: Slight Chance Rain Showers
Slight Chance Rain Showers
Lo 55 °F Hi 76 °F Lo 52 °F Hi 66 °F Lo 50 °F Hi 73 °F Lo 53 °F Hi 85 °F Lo 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.

Random Weather Facts

Recycling
Americans threw away 38 billion plastic water bottles in 2006. A million and a half barrels of oil - enough to fuel 100,000 cars for a year - were used to produce the bottles.

Today in Weather History

Weather History for May 13
 
1971   A chain reaction car accident happened near Casa Grande, AZ after dust storms reduced visibility to near zero. Seven people were killed.
1965   A tropical cyclone hit Bangladesh killing 36,000 people.