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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
Have increased shower chances across central Virginia down into southern Maryland for ongoing activity lifting away from Richmond. The signal for heavy rainfall has increased west of the Blue Ridge for Sunday. This will need to be closely monitored if the need for Flood Watches arises.

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: @ 01-Aug-2026 4:00pm - next update at 4:10pm  
Temperature Summary Outlook
Currently: 87.0, Max: 88.7, Min: 66.2 87.0°F
 

Warm

Feels like: 95°F

24-hr difference
-2.2°FColder 2.2°F than yesterday at this time.
  Today Yesterday
High: 88.7°F
2:32pm 		89.6°F
3:54pm
Low: 66.2°F
5:16am 		67.4°F
6:44am
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:  --°F
---
Min Max:  --°F
---
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:  87.0°F
Coldest Wind Chill
Today:  66.2°F
at 5:16am
Yesterday:  67.4°F
at 6:44am
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: 7.0 Degree Days
Yesterday: 13.0 Degree Days
Heat Index
Now:  94.3°F
Warmest Heat Index
Today:  97.8°F
at 14:15
Yesterday:  94.8°F
at 15:33
August 2026  97.8°F
01 August at 2:15 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
Mostly cloudy Mostly cloudy
Wind from SE SE
1
Gust:
 6 mph
0 Bft - Calm
Today: 9 mph 1:22pm
Gust Month: 9 mph August 1
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 August 2026
High Gust:  9 mph
01 August at 1:22 PM
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:  8.4 miles
Yesterday:  7.7 miles
Highest Wind Run
August 2026  8.4 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: 0.00 in
Rain Rate (/hr): 0.00 in
Rain Yesterday: 0.00 in
This Month: 0.00 in
Season Total: 15.05 in
7 days since last rain.

Days Since Last Dry Day: 0
Station High August 2026
High Day:  0.00 in
01 August
High Hour:  0.00 in
01 August at 12:00 AM
High Rain Rate /hr:  0.00 in
01 August 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 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: Slight Chance Rain Showers
Slight Chance Rain Showers
Tonight

Tonight: Mostly Cloudy
Mostly Cloudy
Sunday

Sunday: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Hi 88 °F Lo 72 °F Hi 84 °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: 72.9°F Increased 0.9°F since last hour.
Barometer: 29.89 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: 6:09am
Sunset: 8:22pm
Moonset: 9:06am
Moonrise: 9:55pm

Day Length:  14:09
Dawn:  05:42
Dusk:  20:50
Daylight Length:  15:08
 There will be 1min 54s less daylight tomorrow

Cloud Base

cloudbase
CB AGL: 3209 ft
UV Index

   3.2   
 Medium 
High: 7.4 @ 2:12pm

Solar Radiation
471 W/m2
High: 986 @  2:31pm

Air Quality Index
Current AQI
57
Moderate

Sunlight

14 hrs 12 min 37 sec
of Sunlight Today
Which is
1 min 53 sec Shorter
Than Yesterday
(Noon) graph (Midnight)
 Legend

Moon


Waning Gibbous
Waning Gibbous, Moon at 17 days in cycle
90% %
Illuminated
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Slight Chance Rain Showers
Slight Chance Rain Showers

Hi 88 °F		 NWS forecast: A slight chance of rain showers after 4pm. Mostly cloudy, with a high near 88. South wind around 10 mph. Chance of precipitation is 20%.
Davis VP+ forecast: Increasing clouds with little temperature change.		   Tonight

Tonight: Mostly Cloudy
Mostly Cloudy

Lo 72 °F		 NWS forecast: Mostly cloudy, with a low around 72. Southeast wind around 10 mph. New rainfall amounts less than a tenth of an inch possible.
 NWS Weather Forecast  - Five Day Outlook for This Afternoon through Wednesday - Last Update: Sat, 01-Aug-2026 3:18pm EDT
This
Afternoon
This Afternoon: Slight Chance Rain Showers
Slight Chance Rain Showers
Tonight

Tonight: Mostly Cloudy
Mostly Cloudy
Sunday

Sunday: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Sunday
Night
Sunday Night: Patchy Fog
Patchy Fog
Monday

Monday: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Monday
Night
Monday Night: Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers And T-Storms Likely then Chance Showers And T-Storms
Tuesday

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

Wednesday: Partly Sunny then Chance Showers And Thunderstorms
Partly Sunny then Chance Showers And T-Storms
Hi 88 °F Lo 72 °F Hi 84 °F Lo 71 °F Hi 85 °F Lo 70 °F Hi 85 °F Lo 70 °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
Freeze Warning - Widespread temperatures at or below 32°F during the growing season. A freeze may occur with or without frost. A hard freeze occurs with temperatures below 28°F. Growing season is based on the average date of first and last freeze at O'Hare. It begins April 17 and ends October 27.

Today in Weather History

Weather History for August 1
 
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.