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Marine Weather Statement MARINE WEATHER STATEMENT - Tidal Potomac
Test Message TEST MESSAGE - Montgomery Cnty(C+SE), MD  - Montgomery Cnty(NW), MD

WASHINGTON DC METRO AREA FORECAST DISCUSSION
With an uptick in convective potential this afternoon, a few Special Marine Warnings and Severe Thunderstorm Warnings have been issued in the last hour or two. However, these storms are still on track to exit the forecast area by the early 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: @ 03-Aug-2026 4:20pm - next update at 4:30pm  
Temperature Summary Outlook
Currently: 87.8, Max: 88.2, Min: 73.4 87.8°F
Warmer 1.6°F than last hour.

Warm

Feels like: 96°F

24-hr difference
9.3°FWarmer 9.3°F than yesterday at this time.
  Today Yesterday
High: 88.2°F
2:52pm 		81.6°F
3:20pm
Low: 73.4°F
3:54am 		73.8°F
10:55pm
High & Low August 2026
High:  88.7°F
01 August at 2:32 PM
Low:  66.2°F
01 August at 5:16 AM
Max Min:  73.8°F
02 August
Min Max:  81.6°F
02 August
High and Low 2026
High:  101.6°F
04 July at 3:01 PM
Low:  5.2°F
27 January at 7:52 AM
Max Min:  77.9°F
16 July
Min Max:  18.4°F
25 January
Record August
High:  101.9°F
at 15:51 on 02 August 2024
Low:  50.4°F
at 06:59 on 21 August 2024
Max Min:  77.5°F
at 06:27 on 13 August 2016
Min Max:  67.3°F
at 16:48 on 29 August 2017
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:  87.8°F
Coldest Wind Chill
Today:  73.4°F
at 3:54am
Yesterday:  73.8°F
at 10:55pm
August 2026  66.2°F
01 August at 5:16 AM
2026  2.9°F
01 February at 8:34 AM
Station August  50.4°F
at 06:59 on 21 August 2024
Station All Time  °F
Records began on 24 December 2012
Degree Days
Heating Degree Days
Today: 0.0 Degree Days
Yesterday: 0.0 Degree Days
Cooling Degree Days
Today: 9.3 Degree Days
Yesterday: 11.7 Degree Days
Heat Index
Now:  95.2°F
Warmest Heat Index
Today:  101.2°F
at 12:00
Yesterday:  90.8°F
at 15:20
August 2026  101.2°F
03 August at 12:00 PM
2026  128.9°F
04 July at 3:04 PM
Station Record August  120.1°F
at 15:58 on 12 August 2021
Station All Time  128.9°F
at 15:04 on 04 July 2026
Records began on 24 December 2012
WeatherCam Thumbnail
North North West Camera
North North West WeatherCam
Partly cloudy Partly cloudy
Wind from NNE NNE
1
Gust:
 3 mph
0 Bft - Calm
Today: 10 mph 2:14pm
Gust Month: 11 mph August 2
Rain Today:  0.07 in
Rain Rate /hr  0.00 in
Rain Last Hour:  0.01 in
Rain 24hrs:  0.20 in
Wind

Station High August 2026
High Gust:  11 mph
02 August at 12:34 AM
High Average:  4 mph
01 August at 3:21 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 August
High Gust:  32 mph
at 21:02 on 19 August 2017
High Average:  12 mph
at 14:57 on 21 August 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:  4.9 miles
Yesterday:  13.1 miles
Highest Wind Run
August 2026  15.3 miles
01 August
2026  101.4 miles
07 February
August  91.3 miles
on 05 August 2017
Station All Time  284.2 miles
on 02 March 2018
Records began on 24 December 2012

Rain
Rain Today: 0.07 in
Rain Rate (/hr): 0.00 in
Rain Yesterday: 0.75 in
This Month: 0.82 in
Season Total: 15.87 in
0 day since last rain.

Days Since Last Dry Day: 1
Station High August 2026
High Day:  0.75 in
02 August
High Hour:  0.40 in
02 August at 4:15 PM
High Rain Rate /hr:  4.20 in
02 August at 4:03 PM
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 August
High Day:  3.20 in
on 01 August 2018
High Hour:  6.61 in
at 14:09 on 04 August 2017
High Rain Rate /hr:  6.86 in
at 18:04 on 06 August 2023
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
This
Afternoon
This Afternoon: Isolated Showers And Thunderstorms
Isolated Showers And T-Storms
Tonight

Tonight: Partly Cloudy
Partly Cloudy
Tuesday

Tuesday: Partly Sunny
Partly Sunny
Hi 85 °F Lo 66 °F Hi 85 °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: 61 % Decreased 6.0% since last hour.
Dew Point: 72.7°F Decreased 1.1°F since last hour.
Barometer: 29.82 inHg  
Baro Trend: Rising 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: 6:11am
Sunset: 8:20pm
Moonset: 11:16am
Moonrise: 10:42pm

Day Length:  14:05
Dawn:  05:43
Dusk:  20:48
Daylight Length:  15:04
 There will be 1min 57s less daylight tomorrow

Cloud Base

cloudbase
CB AGL: 3001 ft
UV Index

   2.7   
 Low 
High: 8.5 @ 1:30pm

Solar Radiation
436 W/m2
High: 1146 @  11:43am

Air Quality Index
Current AQI
5
Good

Sunlight

14 hrs 8 min 46 sec
of Sunlight Today
Which is
1 min 56 sec Shorter
Than Yesterday
(Noon) graph (Midnight)
 Legend

Moon


Waning Gibbous
Waning Gibbous, Moon at 19 days in cycle
74% %
Illuminated
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Isolated Showers And Thunderstorms
Isolated Showers And T-Storms

Hi 85 °F		 NWS forecast: Isolated showers and thunderstorms before 5pm. Partly sunny, with a high near 85. Northwest wind around 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Davis VP+ forecast: Increasing clouds with little temperature change.		   Tonight

Tonight: Partly Cloudy
Partly Cloudy

Lo 66 °F		 NWS forecast: Partly cloudy, with a low around 66. North wind around 6 mph. New rainfall amounts less than a tenth of an inch possible.
 NWS Weather Forecast  - Five Day Outlook for This Afternoon through Friday - Last Update: Mon, 03-Aug-2026 2:23pm EDT
This
Afternoon
This Afternoon: Isolated Showers And Thunderstorms
Isolated Showers And T-Storms
Tonight

Tonight: Partly Cloudy
Partly Cloudy
Tuesday

Tuesday: Partly Sunny
Partly Sunny
Tuesday
Night
Tuesday Night: Mostly Cloudy then Chance Rain Showers
Mostly Cloudy then Chance Rain Showers
Wednesday

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

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

Friday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms
Hi 85 °F Lo 66 °F Hi 85 °F Lo 69 °F Hi 86 °F Lo 72 °F Hi 89 °F Lo 72 °F Hi 89 °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

Extremes
The highest temperature ever recorded in the United States was 134 degrees F at Greenland Ranch in Death Valley, California.

Today in Weather History

Weather History for August 3
 
1984   Thunderstorms dropped 6 to 13 inches of rain at Tulsa, OK in 6 hours. The flooding claimed 14 lives and caused $90 million in property damage. 4600 cars, 743 houses, and 387 apartments were destroyed or severely damaged in the flood.
1967   A slow moving nor'easter battered New England with high winds, heavy rain, and record late season snow. Winds 70 to 90 mph in gusts occurred along the coast. Over 7 inches of rain fell at Nantucket, MS with 6.57 inches falling in 24 hours to set a new 24 hour rainfall record. 24.9 inches of snow fell at Mount Washington, NH to set a new May snowfall record.