Navigation

Alerts

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

Mobile Weather

Get Cliftonvaweather SmartPhone Weather
QRCODE CVAWX
Scan With Phone's QR Code Reader

NOAA KHB36 Manassas

  • KHB36 Manassas

NOAA WXM42 Hagerstown

  • WXM42 Hagerstown

External Links

  • WXForum.net

Site Participation Links

  • Mid-Atlantic Weather Network
  • APRS/CWOP
  • Blitzortung.org
  • pws weather
  • UK Met Office WOW
Test Message TEST MESSAGE - Montgomery Cnty(C+SE), MD  - Montgomery Cnty(NW), MD

WASHINGTON DC METRO AREA FORECAST DISCUSSION
Very warm temperatures for late April are expected today through Tuesday as high pressure sits off the Mid-Atlantic coast. Shower and thunderstorms chances return Tuesday afternoon and again Wednesday as a cold front crosses the region. High pressure briefly returns Thursday before another front arrives late week and into the weekend with additional afternoon showers and thunderstorms.

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.
spacer

Current Clifton Virginia Conditions & NWS Forecast

Updated: @ 28-Apr-2024 12:40pm - next update at 12:50pm  
Temperature Summary Outlook
Currently: 76.0, Max: 76.0, Min: 54.2 76.0°F
Warmer 5.8°F than last hour.

Comfortable

Feels like: 76°F

24-hr difference
22.7°FWarmer 22.7°F than yesterday at this time.
  Today Yesterday
High: 76.0°F
12:39pm 		57.0°F
7:33pm
Low: 54.2°F
4:49am 		50.7°F
5:51am
High & Low April 2024
High:  87.7°F
15 April at 1:39 PM
Low:  34.6°F
22 April at 7:18 AM
Max Min:  62.5°F
11 April
Min Max:  51.5°F
03 April
High and Low 2024
High:  87.7°F
15 April at 1:39 PM
Low:  8.9°F
17 January at 7:32 AM
Max Min:  62.5°F
11 April
Min Max:  26.5°F
20 January
Record April
High:  90.7°F
at 3:39 PM on 20 April 2023
Low:  25.0°F
at 7:19 AM on 03 April 2021
Max Min:  68.7°F
at 6:40 AM on 30 April 2017
Min Max:  44.1°F
at 5:10 PM on 09 April 2018
Station All Time Record
High:  101.5°F
at 3:56 PM on 06 September 2023
Low:  1.0°F
at 7:23 AM on 23 January 2014
Max Min:  77.5°F
at 6:27 AM on 13 August 2016
Min Max:  16.7°F
at 12:04 PM on 16 February 2015
Records began on 24 December 2012
Wind Chill
Now:  76.0°F
Coldest Wind Chill
Today:  54.2°F
at 4:49am
Yesterday:  49.1°F
at 3:58am
April 2024  33.0°F
06 April at 5:37 AM
2024  3.7°F
17 January at 9:00 AM
Station April  17.4°F
at 5:35 AM on 02 April 2021
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: 4.2 Degree Days
Yesterday: 11.2 Degree Days
Cooling Degree Days
Today: 0.4 Degree Days
Yesterday: 0.0 Degree Days
Heat Index
Now:  76.0°F
Warmest Heat Index
Today:  76.0°F
at 12:39
Yesterday:  57.0°F
at 19:33
April 2024  87.8°F
15 April at 2:48 PM
2024  87.8°F
15 April at 2:48 PM
Station Record April  92.1°F
at 2:25 PM on 29 April 2017
Station All Time  122.6°F
at 3:16 PM on 28 July 2023
Records began on 24 December 2012
WeatherCam Thumbnail
North North West Camera
North North West WeatherCam
Few Clouds Few Clouds
Wind from SSE SSE
0.8
Gust:
 4.0 mph
0 Bft - Calm
Today: 5.0 mph 11:43am
Gust Month: 28.0 mph April 13
Rain Today:  0.00 in
Rain Rate /hr  0.00 in
Rain Last Hour:  0.00 in
Rain 24hrs:  0.09 in
Wind

Station High April 2024
High Gust:  28.0 mph
13 April at 3:44 AM
High Average:  9.0 mph
13 April at 9:00 AM
Station High 2024
High Gust:  28.0 mph
10 March at 5:26 PM
High Average:  9.0 mph
13 April at 9:00 AM
Station Record April
High Gust:  35.1 mph
at 12:53 AM on 03 April 2016
High Average:  20.7 mph
at 2:09 PM on 12 April 2018
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:  2.4 miles
Yesterday:  10.6 miles
Highest Wind Run
April 2024  65.7 miles
17 April
2024  106.4 miles
28 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: 0.13 in
This Month: 1.22 in
Season Total: 11.06 in
1 day since last rain.

Days Since Last Dry Day: 1
Station High April 2024
High Day:  0.51 in
03 April
High Hour:  0.27 in
03 April at 9:35 AM
High Rain Rate /hr:  1.83 in
02 April at 9:23 PM
Station High 2024
High Day:  1.53 in
09 January
High Hour:  0.33 in
28 January at 1:30 AM
High Rain Rate /hr:  1.88 in
28 February at 6:29 PM
Station Record April
High Day:  3.02 in
on 30 April 2014
High Hour:  0.63 in
at 8:42 AM on 15 April 2014
High Rain Rate /hr:  26.18 in
at 11:00 AM on 08 April 2023
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
Today

Today: Mostly Sunny
Mostly Sunny
Tonight

Tonight: Mostly Clear
Mostly Clear
Monday

Monday: Sunny
Sunny
Hi 85 °F Lo 61 °F Hi 89 °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: 71 % Decreased 8.0% since last hour.
Dew Point: 65.9°F Increased 3.2°F since last hour.
Barometer: 30.173 inHg Falling 0.01 inHg/hr
Baro Trend: Falling
Today
Pressure High:  30.279 in
Pressure Low:  30.169 in
Dewpoint High:  66.3 °F
Dewpoint Low:  52.5 °F
Humidity High:  96%
Humidity Low:  69%
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:  82.0 °F
at 1:58 PM on 12 July 2021
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: 6:14am
Sunset: 7:59pm
Moonrise: 12:13am
Moonset: 9:06am

Day Length:  13:45
Dawn:  05:46
Dusk:  20:27
Daylight Length:  14:41
 There will be 2min 14s more daylight tomorrow

Cloud Base

cloudbase
CB: 2295 ft
UV Index

   6.8   
 High 
High: 6.8 @ 12:33pm

Solar Radiation
898 W/m2
High: 898 @  12:39pm

Air Quality Index
Current AQI
51
Moderate

Sunlight

13 hrs 45 min 2 sec
of Sunlight Today
Which is
2 min 12 sec Longer
Than Yesterday
(Noon) graph (Midnight)
 Legend

Moon


Waning Gibbous
Waning Gibbous, Moon at 18 days in cycle
79% %
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: Today & Tonight
Today

Today: Mostly Sunny
Mostly Sunny

Hi 85 °F		 NWS forecast: Mostly sunny, with a high near 85. Southwest wind 3 to 7 mph.
Davis VP+ forecast: Increasing clouds with little temperature change. Precipitation possible within 24 to 48 hours		   Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 61 °F		 NWS forecast: Mostly clear, with a low around 61. Southwest wind 2 to 7 mph.
 NWS Weather Forecast  - Five Day Outlook for Today through Thursday - Last Update: Sun, 28-Apr-2024 10:49am EDT
Today

Today: Mostly Sunny
Mostly Sunny
Tonight

Tonight: Mostly Clear
Mostly Clear
Monday

Monday: Sunny
Sunny
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday

Tuesday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms
Tuesday
Night
Tuesday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Wednesday

Wednesday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Chance Showers And Thunderstorms then Partly Cloudy
Chance Showers And T-Storms then Partly Cloudy
Thursday

Thursday: Mostly Sunny
Mostly Sunny
Hi 85 °F Lo 61 °F Hi 89 °F Lo 64 °F Hi 87 °F Lo 65 °F Hi 81 °F Lo 58 °F Hi 80 °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
Enhanced Fujita Scale or EF-Scale - A scale of wind damage intensity in which wind speeds are inferred from analysis of wind damage. All tornadoes and most other windstorms are assigned a numerical rating from this scale according to the most intense damage caused by the storm. EF0 (weak) 65–85 mph, light damage EF1 (weak) 86–110 mph, moderate damage EF2 (strong) 111–135 mph, considerable damage EF3 (strong) 136–165 mph, severe damage EF4 (violent) 166–200 mph, devastating damage EF5 (violent) >200 mph, incredible damage

Today in Weather History

Weather History for April 28
 
1988   Mount Washington, NH reported 7 feet of snow in just 10 days. This broke the previous record for April total snowfall (89.3 inches).
1942   A tornado moved across the Oklahoma counties of Rogers and Mayes. It struck the town of Pryor, killing 52 people and causing $2 million in damage.