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Arlington Cnty, VA
 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
 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  - 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
Additional Coastal Flood Advisories have been issued at Solomon`s Island, Dahlgren, and Baltimore/Fort McHenry, with Alexandria becoming close as well. With the cold front slower than expected to push across the area, locally dense fog has become an issue across the Central Virginia Piedmont eastward to the I-95 corridor. For tonight, hoisted a slew of Freeze Warnings and Frost Advisories for those along and just east of the Allegheny Front.

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: @ 30-Apr-2026 6:40am - next update at 6:50am  
Temperature Summary Outlook
Currently: 51.0, Max: 55.5, Min: 51.0 51.0°F
Colder 0.5°F than last hour.

Cool

Feels like: 51°F

24-hr difference
-3.2°FColder 3.2°F than yesterday at this time.
  Today Yesterday
High: 55.5°F
12:00am 		60.0°F
2:48pm
Low: 51.0°F
6:34am 		54.1°F
6:22am
High & Low April 2026
High:  94.0°F
16 April at 2:47 PM
Low:  28.8°F
21 April at 6:56 AM
Max Min:  66.9°F
04 April
Min Max:  56.6°F
20 April
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 April
High:  94.0°F
at 14:47 on 16 April 2026
Low:  25.0°F
at 07:19 on 03 April 2021
Max Min:  68.7°F
at 06:40 on 30 April 2017
Min Max:  44.1°F
at 17:10 on 09 April 2018
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:  51.0°F
Coldest Wind Chill
Today:  51.0°F
at 6:34am
Yesterday:  54.1°F
at 6:22am
April 2026  28.8°F
21 April at 6:56 AM
2026  2.9°F
01 February at 8:34 AM
Station April  17.4°F
at 05:35 on 02 April 2021
Station All Time  °F
Records began on 24 December 2012
Degree Days
Heating Degree Days
Today: 3.5 Degree Days
Yesterday: 7.6 Degree Days
Cooling Degree Days
Today: 0.0 Degree Days
Yesterday: 0.0 Degree Days
Heat Index
Now:  51.0°F
Warmest Heat Index
Today:  55.5°F
at 00:00
Yesterday:  60.0°F
at 14:48
April 2026  97.0°F
16 April at 3:01 PM
2026  97.0°F
16 April at 3:01 PM
Station Record April  97.4°F
at 14:39 on 29 April 2024
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
Mostly cloudy Mostly cloudy
Wind from NNW NNW
0
Gust:
 1 mph
0 Bft - Calm
Today: 3 mph 3:45am
Gust Month: 21 mph April 5
Rain Today:  0.00 in
Rain Rate /hr  0.00 in
Rain Last Hour:  0.00 in
Rain 24hrs:  0.26 in
Wind

Station High April 2026
High Gust:  21 mph
05 April at 9:32 AM
High Average:  6 mph
20 April at 10:49 AM
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 April
High Gust:  35 mph
at 00:53 on 03 April 2016
High Average:  21 mph
at 14:09 on 12 April 2018
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:  0.3 miles
Yesterday:  15.3 miles
Highest Wind Run
April 2026  58.1 miles
05 April
2026  101.4 miles
07 February
April  175.3 miles
on 16 April 2022
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: 0.26 in
This Month: 1.34 in
Season Total: 8.12 in
1 day since last rain.

Days Since Last Dry Day: 2
Station High April 2026
High Day:  0.50 in
05 April
High Hour:  0.39 in
05 April at 11:52 AM
High Rain Rate /hr:  3.72 in
01 April at 7:00 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 April
High Day:  3.02 in
on 30 April 2014
High Hour:  0.63 in
at 08:42 on 15 April 2014
High Rain Rate /hr:  26.18 in
at 11:00 on 08 April 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
Today

Today: Patchy Fog then Mostly Sunny
Patchy Fog then Mostly Sunny
Tonight

Tonight: Mostly Clear
Mostly Clear
Friday

Friday: Mostly Sunny then Chance Rain Showers
Mostly Sunny then Chance Rain Showers
Hi 68 °F Lo 42 °F Hi 67 °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: 96 %  
Dew Point: 49.9°F Decreased 0.7°F since last hour.
Barometer: 29.79 inHg Rising 0.02 inHg/hr
Baro Trend: Rising
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: 8:02pm
Moonset: 5:19am
Moonrise: 7:23pm

Day Length:  13:48
Dawn:  05:45
Dusk:  20:30
Daylight Length:  14:45
 There will be 2min 8s more daylight tomorrow

Cloud Base

cloudbase
CB AGL: 249 ft
UV Index

   0.0   
None
High: 0.0 @ 12:00am

Solar Radiation
16 W/m2
High: 16 @  6:36am

Air Quality Index
Current AQI
35
Good

Sunlight

13 hrs 51 min 5 sec
of Sunlight Today
Which is
2 min 11 sec Longer
Than Yesterday
(Noon) graph (Midnight)
 Legend

Moon


Waxing Gibbous
Waxing Gibbous, Moon at 13 days in cycle
98% %
Illuminated
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

Today: Patchy Fog then Mostly Sunny
Patchy Fog then Mostly Sunny

Hi 68 °F		 NWS forecast: Patchy fog before 8am. Mostly sunny, with a high near 68. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.
Davis VP+ forecast: Not available		   Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 42 °F		 NWS forecast: Mostly clear, with a low around 42. Northwest wind 3 to 13 mph, with gusts as high as 21 mph.
 NWS Weather Forecast  - Five Day Outlook for Today through Monday - Last Update: Thu, 30-Apr-2026 4:53am EDT
Today

Today: Patchy Fog then Mostly Sunny
Patchy Fog then Mostly Sunny
Tonight

Tonight: Mostly Clear
Mostly Clear
Friday

Friday: Mostly Sunny then Chance Rain Showers
Mostly Sunny then Chance Rain Showers
Friday
Night
Friday Night: Chance Rain Showers
Chance Rain Showers
Saturday

Saturday: Chance Light Rain
Chance Light Rain
Saturday
Night
Saturday Night: Chance Light Rain
Chance Light Rain
Sunday

Sunday: Sunny
Sunny
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday

Monday: Sunny then Slight Chance Showers And Thunderstorms
Sunny then Slight Chance Showers And T-Storms
Hi 68 °F Lo 42 °F Hi 67 °F Lo 45 °F Hi 59 °F Lo 42 °F Hi 62 °F Lo 42 °F Hi 73 °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 April 30
 
1912   The Philippines' hottest temperature was attained at Tuguegarao with 108 degrees.
1995   Severe thunderstorms moved across Tarrant County in Texas. Hail up to 3.5 inches in diameter did an enormous amount of damage. 100 aircraft were damaged at DFW airport. Damages in the county totaled $220 million. This was the second major hailstorm to hit the area in a month.