Small Craft Advisory SMALL CRAFT ADVISORY - Tidal Potomac
Frost Advisory FROST ADVISORY - Fauquier Cnty(N), VA  - Fauquier Cnty(S), VA  - Loudon Cnty(E), VA  - Loudon Cnty(W), VA  - Montgomery Cnty(C+SE), MD  - Montgomery Cnty(NW), MD  - Prince William Cnty, VA
Test Message TEST MESSAGE - Montgomery Cnty(C+SE), MD  - Montgomery Cnty(NW), MD

WASHINGTON DC METRO AREA FORECAST DISCUSSION
Troughing will linger over the Mid-Atlantic through mid week. A large area of high pressure over the Midwest will gradually build eastward, moving overhead late this week through early next week. Drier and slightly warmer conditions will persist heading into early next week.

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: @ 15-Oct-2024 6:30pm - next update at 6:40pm  
Temperature Summary Outlook
Currently: 53.7, Max: 56.5, Min: 42.9 53.7°F
Colder 0.8°F than last hour.

Cool

Feels like: 54°F

24-hr difference
-3.5°FColder 3.5°F than yesterday at this time.
  Today Yesterday
High: 56.5°F
2:32pm
69.4°F
12:00am
Low: 42.9°F
3:48am
48.2°F
11:59pm
High & Low October 2024
High:  82.3°F
13 October at 2:52 PM
Low:  42.0°F
11 October at 7:45 AM
Max Min:  64.2°F
04 October
Min Max:  65.0°F
10 October
High and Low 2024
High:  101.9°F
02 August at 3:51 PM
Low:  8.9°F
17 January at 7:32 AM
Max Min:  78.1°F
23 June
Min Max:  26.5°F
20 January
Record October
High:  93.9°F
at 3:52 PM on 02 October 2019
Low:  29.8°F
at 6:50 AM on 19 October 2015
Max Min:  72.3°F
at 5:28 AM on 09 October 2017
Min Max:  48.9°F
at 3:45 PM on 26 October 2018
Station All Time Record
High:  101.9°F
at 3:51 PM on 02 August 2024
Low:  1.0°F
at 7:23 AM on 23 January 2014
Max Min:  78.1°F
at 6:58 AM on 23 June 2024
Min Max:  16.7°F
at 12:04 PM on 16 February 2015
Records began on 24 December 2012
Wind Chill
Now:  53.7°F
Coldest Wind Chill
Today:  42.9°F
at 3:48am
Yesterday:  47.5°F
at 11:11pm
October 2024  42.0°F
11 October at 7:45 AM
2024  3.7°F
17 January at 9:00 AM
Station October  29.8°F
at 6:50 AM on 19 October 2015
Station All Time  -15.8°F
at 1:57 AM on 21 February 2015
Records began on 24 December 2012
Degree Days
Heating Degree Days
Today: 12.3 Degree Days
Yesterday: 5.1 Degree Days
Cooling Degree Days
Today: 0.0 Degree Days
Yesterday: 0.4 Degree Days
Heat Index
Now:  53.7°F
Warmest Heat Index
Today:  56.5°F
at 14:32
Yesterday:  69.4°F
at 00:00
October 2024  83.3°F
13 October at 2:52 PM
2024  122.8°F
16 July at 2:48 PM
Station Record October  100.0°F
at 1:43 PM on 02 October 2019
Station All Time  122.8°F
at 2:48 PM on 16 July 2024
Records began on 24 December 2012
WeatherCam Thumbnail
North North West Camera
North North West WeatherCam
Mostly cloudy Mostly cloudy
 Calm N
0.0
Gust:
0.0 mph
0 Bft - Calm
Today: 8.0 mph 10:32am
Gust Month: 21.0 mph October 14
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 October 2024
High Gust:  21.0 mph
14 October at 4:19 PM
High Average:  6.0 mph
14 October at 9:52 AM
Station High 2024
High Gust:  28.0 mph
10 March at 5:26 PM
High Average:  14.0 mph
12 May at 5:00 PM
Station Record October
High Gust:  28.1 mph
at 11:52 AM on 22 October 2016
High Average:  16.7 mph
at 11:53 AM on 22 October 2016
Station All Time Record
High Gust:  42.2 mph
at 12:56 PM on 04 January 2018
High Average:  24.3 mph
at 1:07 PM on 02 March 2018
Records began on 24 December 2012
Wind Run

Today:  8.5 miles
Yesterday:  46.5 miles
Highest Wind Run
October 2024  46.5 miles
14 October
2024  106.4 miles
28 February
October  200.4 miles
on 22 October 2016
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: 0.11 in
Season Total: 24.20 in
12 days since last rain.

Days Since Last Dry Day: 0
Station High October 2024
High Day:  0.05 in
01 October
High Hour:  0.02 in
02 October at 3:36 AM
High Rain Rate /hr:  0.14 in
02 October at 3:39 AM
Station High 2024
High Day:  1.53 in
09 January
High Hour:  0.77 in
03 August at 6:32 PM
High Rain Rate /hr:  9.14 in
10 July at 7:00 PM
Station Record October
High Day:  1.89 in
on 25 October 2021
High Hour:  0.86 in
at 8:17 PM on 25 October 2021
High Rain Rate /hr:  4.72 in
at 7:25 PM on 25 October 2021
Station All Time Record
High Day:  5.17 in
on 21 July 2018
High Hour:  2.21 in
at 4:13 PM on 22 July 2020
High Rain Rate /hr:  64.00 in
at 10:49 AM 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
Tonight

Tonight: Isolated Rain Showers then Partly Cloudy
Isolated Rain Showers then Partly Cloudy
Wednesday

Wednesday: Sunny
Sunny
Wednesday
Night
Wednesday Night: Partly Cloudy
Partly Cloudy
Lo 39 °F Hi 56 °F Lo 39 °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: 64 % Increased 2.0% since last hour.
Dew Point: 41.8°F  
Barometer: 29.956 inHg Rising 0.01  inHg/hr
Baro Trend: Rising slowly
Today
Pressure High:  30.017 in
Pressure Low:  29.936 in
Dewpoint High:  44.6 °F
Dewpoint Low:  38.2 °F
Humidity High:  92%
Humidity Low:  59%
Station Record
Pressure High:  31.410 in
at 12:14 PM on 23 March 2017
Pressure Low:  28.987 in
at 7:41 AM on 07 February 2020
Dewpoint High:  82.7 °F
at 11:55 AM on 05 July 2024
Dewpoint Low:  -27.0 °F
at 1:57 AM 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: 10.00 in
Total Last Season: 0.0 in
Fire Danger
firedanger
Almanac
Sunrise: 7:19am
Sunset: 6:30pm
Moonset: 4:53am
Moonrise: 5:35pm

Day Length:  11:10
Dawn:  06:53
Dusk:  18:57
Daylight Length:  12:04
 There will be 2min 27s less daylight tomorrow

Cloud Base

cloudbase
CB: 2704 ft
UV Index

   0.0   
None
High: 3.0 @ 2:24pm

Solar Radiation
0 W/m2
High: 731 @  2:16pm

Air Quality Index
Current AQI
8
  Good

Sunlight

11 hrs 11 min 7 sec
of Sunlight Today
Which is
2 min 26 sec Shorter
Than Yesterday

(Noon)
graph (Midnight)
Legend

Moon


Waxing Gibbous
Waxing Gibbous, Moon at 12 days in cycle
96% %
Illuminated
Trends
These graphs present the temperature, pressure, rainfall, and wind speed trends for the last 24 hours.
The thumbnail graphs are sampled every ten minutes.
The large graphs are sampled every minute.
Weather Graphs
Click on weather description tab below to display the corresponding graph in the panel above.
Wind Graph Thumbnail Wind Direction Thumbnail Temperature Graph Thumbnail Temp Min/Max Graph Thumbnail Humidity Graph Thumbnail Pressure Graph Thumbnail
Today's Rainfall Graph Thumbnail Rain Graph Thumbnail Daily Rain Graph Thumbnail Solar Radiation Graph Thumbnail UV Index Graph Thumbnail Sunshine Hours Graph Thumbnail
 NWS Weather Forecast  - Outlook: Tonight & Wednesday
Tonight

Tonight: Isolated Rain Showers then Partly Cloudy
Isolated Rain Showers then Partly Cloudy

Lo 39 °F
NWS forecast: Isolated rain showers before 7pm. Partly cloudy, with a low around 39. Northwest wind around 7 mph. Chance of precipitation is 20%.
Davis VP+ forecast: Increasing clouds with little temperature change.
  Wednesday

Wednesday: Sunny
Sunny

Hi 56 °F
NWS forecast: Sunny, with a high near 56. Northwest wind 7 to 12 mph, with gusts as high as 20 mph.
 NWS Weather Forecast  - Five Day Outlook for Tonight through Saturday Night - Last Update: Tue, 15-Oct-2024 4:31pm EDT
Tonight

Tonight: Isolated Rain Showers then Partly Cloudy
Isolated Rain Showers then Partly Cloudy
Wednesday

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

Thursday: Patchy Frost then Sunny
Patchy Frost then Sunny
Thursday
Night
Thursday Night: Mostly Clear
Mostly Clear
Friday

Friday: Sunny
Sunny
Friday
Night
Friday Night: Clear
Clear
Saturday

Saturday: Sunny
Sunny
Saturday
Night
Saturday Night: Clear
Clear
Lo 39 °F Hi 56 °F Lo 39 °F Hi 58 °F Lo 41 °F Hi 66 °F Lo 41 °F Hi 69 °F Lo 43 °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 throw away 25,000,000,000 Styrofoam coffee cups every year.

Today in Weather History

Weather History for October 15
 
1954
Hurricane Hazel struck the Carolina coastline. The hurricane demolished every pier along a 170 mile stretch from Myrtle Beach SC to Cedar Island NC, and obliterated entire lines of beach homes. Hurricane Hazel also destroyed 1500 homes as it moved inland with seventeen foot tides. Winds between Myrtle Beach SC and Cape Fear NC gusted to 150 mph. Hurricane Hazel caused 163 million dollars damage, and claimed the lives of 98 persons. (David Ludlum) (The Weather Channel)

1988
The cold high pressure system responsible for the record low temperatures in the eastern U.S. began to move out to sea, giving way to a trend toward "Indian Summer". Thunderstorms developing ahead of a cold front produced golf ball size hail at Altamont KS and hail two inches in diameter at Yates City IL. (Storm Data) (The National Weather Summary)