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 Details for Arlington Cnty, VA Coastal Flood Advisory
 Alexandria, VA
 Details for Alexandria, VA Coastal Flood Advisory
 Falls Church, VA
 Details for Falls Church, VA Coastal Flood Advisory
 Charles Cnty, MD
 Details for Charles Cnty, MD Coastal Flood Advisory
 Tidal Potomac
 Details for Tidal Potomac Small Craft Advisory
 Tidal Potomac
 Details for Tidal Potomac Small Craft Advisory
 Montgomery Cnty(C+SE), MD
 Details for Montgomery Cnty(C+SE), MD Test Message
 Montgomery Cnty(NW), MD
 Details for Montgomery Cnty(NW), MD Test Message

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Coastal Flood Advisory COASTAL FLOOD ADVISORY - Alexandria, VA  - Arlington Cnty, VA  - Charles Cnty, MD  - Falls Church, VA
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
Small Craft Advisory was extended through Monday morning for the main channel of the Chesapeake Bay.

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: @ 27-Sep-2026 5:10pm - next update at 5:20pm  
Temperature Summary Outlook
Currently: 60.7, Max: 67.2, Min: 58.9 60.7°F
Colder 0.9°F than last hour.

Cool

Feels like: 61°F

24-hr difference
1.6°FWarmer 1.6°F than yesterday at this time.
  Today Yesterday
High: 67.2°F
12:07pm 		69.0°F
1:06pm
Low: 58.9°F
12:35am 		56.6°F
7:45am
High & Low September 2026
High:  95.7°F
01 September at 2:41 PM
Low:  47.9°F
25 September at 3:18 AM
Max Min:  73.9°F
02 September
Min Max:  63.1°F
23 September
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 September
High:  101.5°F
at 15:56 on 06 September 2023
Low:  40.2°F
at 07:12 on 22 September 2020
Max Min:  73.9°F
at 04:46 on 04 September 2018
Min Max:  60.0°F
at 15:53 on 30 September 2022
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:  60.7°F
Coldest Wind Chill
Today:  58.9°F
at 12:35am
Yesterday:  56.6°F
at 7:45am
September 2026  47.9°F
25 September at 3:18 AM
2026  2.9°F
01 February at 8:34 AM
Station September  38.3°F
at 07:38 on 20 September 2020
Station All Time  °F
Records began on 24 December 2012
Degree Days
Heating Degree Days
Today: 2.1 Degree Days
Yesterday: 4.8 Degree Days
Cooling Degree Days
Today: 0.1 Degree Days
Yesterday: 0.7 Degree Days
Heat Index
Now:  60.7°F
Warmest Heat Index
Today:  67.2°F
at 12:07
Yesterday:  69.0°F
at 13:06
September 2026  117.5°F
02 September at 1:40 PM
2026  128.9°F
04 July at 3:04 PM
Station Record September  117.5°F
at 13:40 on 02 September 2026
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
Moderate drizzle, Overcast Moderate drizzle, Overcast
Wind from N N
2
Gust:
 9 mph
1 Bft - Light air
Today: 18 mph 2:25pm
Gust Month: 20 mph September 3
Rain Today:  0.02 in
Rain Rate /hr  0.00 in
Rain Last Hour:  0.02 in
Rain 24hrs:  0.20 in
Wind

Station High September 2026
High Gust:  20 mph
03 September at 11:27 PM
High Average:  9 mph
03 September at 11:33 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 September
High Gust:  21 mph
at 13:39 on 06 September 2016
High Average:  18 mph
at 16:29 on 13 September 2015
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:  28.0 miles
Yesterday:  35.5 miles
Highest Wind Run
September 2026  38.8 miles
25 September
2026  101.4 miles
07 February
September  103.7 miles
on 30 September 2017
Station All Time  284.2 miles
on 02 March 2018
Records began on 24 December 2012

Rain
Rain Today: 0.02 in
Rain Rate (/hr): 0.00 in
Rain Yesterday: 0.19 in
This Month: 3.48 in
Season Total: 23.79 in
0 day since last rain.

Days Since Last Dry Day: 1
Station High September 2026
High Day:  1.01 in
03 September
High Hour:  1.06 in
04 September at 12:06 AM
High Rain Rate /hr:  5.65 in
03 September at 11:27 PM
Station High 2026
High Day:  1.35 in
16 March
High Hour:  1.06 in
04 September at 12:06 AM
High Rain Rate /hr:  6.94 in
10 August at 4:38 PM
Station Record September
High Day:  2.41 in
on 01 September 2021
High Hour:  1.59 in
at 03:01 on 01 September 2021
High Rain Rate /hr:  38.40 in
at 10:17 on 22 September 2018
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: Chance Rain Showers
Chance Rain Showers
Tonight

Tonight: Isolated Rain Showers
Isolated Rain Showers
Monday

Monday: Isolated Rain Showers then Mostly Cloudy
Isolated Rain Showers then Mostly Cloudy
Hi 65 °F Lo 60 °F Hi 70 °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: 93 % Increased 5.0% since last hour.
Dew Point: 58.7°F Increased 0.1°F since last hour.
Barometer: 29.77 inHg Rising 0.01 inHg/hr
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: 7:00am
Sunset: 7:00pm
Moonset: 8:01am
Moonrise: 7:16pm

Day Length:  11:56
Dawn:  06:35
Dusk:  19:25
Daylight Length:  12:50
 There will be 2min 32s less daylight tomorrow

Cloud Base

cloudbase
CB AGL: 462 ft
UV Index

   0.0   
None
High: 3.0 @ 11:11am

Solar Radiation
19 W/m2
High: 533 @  11:11am

Air Quality Index
Current AQI
8
Good

Sunlight

11 hrs 59 min 29 sec
of Sunlight Today
Which is
2 min 31 sec Shorter
Than Yesterday
(Noon) graph (Midnight)
 Legend

Moon


Waning Gibbous
Waning Gibbous, Moon at 15 days in cycle
98% %
Illuminated
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Chance Rain Showers
Chance Rain Showers

Hi 65 °F		 NWS forecast: A chance of rain showers. Cloudy, with a high near 65. Northwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Davis VP+ forecast: Mostly cloudy and cooler. Precipitation possible within 12 hours, possibly heavy at times. Windy.		   Tonight

Tonight: Isolated Rain Showers
Isolated Rain Showers

Lo 60 °F		 NWS forecast: Isolated rain showers. Mostly cloudy, with a low around 60. Northwest wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%. 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, 27-Sep-2026 2:23pm EDT
This
Afternoon
This Afternoon: Chance Rain Showers
Chance Rain Showers
Tonight

Tonight: Isolated Rain Showers
Isolated Rain Showers
Monday

Monday: Isolated Rain Showers then Mostly Cloudy
Isolated Rain Showers then Mostly Cloudy
Monday
Night
Monday Night: Mostly Cloudy
Mostly Cloudy
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Tuesday
Night
Tuesday Night: Partly Cloudy
Partly Cloudy
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny
Wednesday
Night
Wednesday Night: Partly Cloudy
Partly Cloudy
Thursday

Thursday: Mostly Sunny
Mostly Sunny
Hi 65 °F Lo 60 °F Hi 70 °F Lo 60 °F Hi 75 °F Lo 60 °F Hi 80 °F Lo 62 °F Hi 85 °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

Temperature
You can tell the temperature by counting the clicks a cricket makes in 15 seconds and adding 37!

Today in Weather History

Weather History for September 27
 
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.