Clifton, Virginia Weather

90°F

Clifton, Virginia, USA

Updated: 21-Jul-2026 3:50pm

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SPECIAL MARINE WARNING - Tidal Potomac

SEVERE THUNDERSTORM WATCH - Alexandria, VA - Arlington Cnty, VA - Charles Cnty, MD - Fairfax, VA - Fairfax Cnty, VA - Falls Church, VA - Fauquier Cnty(N), VA - Fauquier Cnty(S), VA - Loudoun Cnty(E), VA - Loudoun Cnty(W), VA - Manassas, VA - Manassas Park, VA - Montgomery Cnty(C+SE), MD - Montgomery Cnty(NW), MD - Prince Georges Cnty, MD - Prince William Cnty, VA - Stafford Cnty, VA - Tidal Potomac - Washington, DC

SMALL CRAFT ADVISORY - Tidal Potomac

TEST MESSAGE - Montgomery Cnty(C+SE), MD - Montgomery Cnty(NW), MD

WASHINGTON DC METRO AREA FORECAST DISCUSSION
A Severe Thunderstorm Watch has been issued for the entire area until 10 PM. A Flash Flood Watch has been issued for the I-64 corridor, Highland, and Pendleton Counties until 2 AM Wednesday.

Current DC Area Radar & North America Lightning

Northeast US Radar	North America Lightning
Radar image courtesy of NWS.	Lightning Data courtesy of Blitzortung.org and its Contributors.

Current Clifton Virginia Conditions & NWS Forecast

Updated: @ 21-Jul-2026 3:50pm - next update at 4:00pm

Temperature

Summary

Outlook

89.5°F

Warm

Feels like: 101°F

24-hr difference
3.9°F

	Today	Yesterday
High:	90.1°F 1:33pm	86.7°F 2:11pm
Low:	74.6°F 6:20am	64.7°F 5:07am

High & Low July 2026
High:		101.6°F
04 July at 3:01 PM
Low:		63.4°F
13 July at 6:33 AM
Max Min:		77.9°F
16 July
Min Max:		83.1°F
07 July
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 July
High:		101.6°F
at 15:01 on 04 July 2026
Low:		51.6°F
at 05:40 on 30 July 2014
Max Min:		77.9°F
at 06:42 on 07 July 2024
Min Max:		72.0°F
at 22:57 on 04 July 2016
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:		89.5°F
Coldest Wind Chill
Today:		74.6°F
at 6:20am
Yesterday:		64.7°F
at 5:07am

July 2026		63.4°F
13 July at 6:33 AM
2026		2.9°F
01 February at 8:34 AM
Station July		51.6°F
at 05:40 on 30 July 2014
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:		9.9 Degree Days
Yesterday:		11.4 Degree Days

Heat Index

Now:		101.9°F
Warmest Heat Index
Today:		107.3°F
at 13:32
Yesterday:		91.5°F
at 14:10
July 2026		128.9°F
04 July at 3:04 PM
2026		128.9°F
04 July at 3:04 PM
Station Record July		128.9°F
at 15:04 on 04 July 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

	Overcast
	S 0 Gust: 3 mph
0 Bft - Calm
Today: 9 mph 12:23pm
Gust Month: 19 mph July 18

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 July 2026
High Gust:		19 mph
18 July at 3:13 PM
High Average:		5 mph
18 July at 3:20 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 July
High Gust:		28 mph
at 16:56 on 17 July 2019
High Average:		12 mph
at 16:11 on 18 July 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:	12.7 miles
Yesterday:	13.9 miles
Highest Wind Run
July 2026	21.4 miles
04 July
2026	101.4 miles
07 February
July	96.9 miles
on 29 July 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:	2.76 in
Season Total:	14.21 in
3 days since last rain.

Days Since Last Dry Day:	0
Station High July 2026
High Day:	0.68 in
09 July
High Hour:	0.67 in
10 July at 6:32 PM
High Rain Rate /hr:	5.38 in
10 July at 6:12 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 July
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:	12.80 in
at 15:26 on 22 July 2020
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

This Afternoon Widespread Showers And T-Storms	Tonight Widespread Showers And T-Storms	Wednesday Isolated Rain Showers then Scattered Showers And T-Storms
Hi 90 °F	Lo 70 °F	Hi 85 °F

Lightning VA MD DC WV DE

Radar Washington DC Metro Area

GRLevel3 radar from NWS station KLWX

Storm Prediction Center Activity Chart

Humidity & Barometer

Humidity:

66 %

Dew Point:

76.6°F

Barometer:

29.73 inHg

Baro Trend:

Falling

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

Almanac

Sunrise:	6:00am
Sunset:	8:31pm
Moonset:	12:00am
Moonrise:	2:01pm

Day Length:		14:28
Dawn:		05:31
Dusk:		21:01
Daylight Length:		15:29
There will be 1min 32s less daylight tomorrow

Cloud Base

CB AGL:

2923 ft

UV Index

1.1
Low

High: 6.3 @ 1:34pm

Solar Radiation

134 W/m²

High: 812 @ 1:20pm

Air Quality Index

Current AQI
33

Sunlight

14 hrs 31 min 37 sec
of Sunlight Today
Which is
1 min 32 sec Shorter
Than Yesterday
(Noon)

(Midnight)
Legend

Moon

Waxing Gibbous

54% %
Illuminated

NWS Weather Forecast - Outlook: This Afternoon & Tonight

This
Afternoon

Widespread Showers And T-Storms

Hi 90 °F

NWS forecast: Widespread showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a high near 90. Southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Davis VP+ forecast: Mostly cloudy with little temperature change. Precipitation likely. Windy with possible wind shift to the W, NW, or N.

Tonight

Widespread Showers And T-Storms

Lo 70 °F

NWS forecast: Widespread showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a low around 70. Southwest wind 7 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

NWS Weather Forecast - Five Day Outlook for This Afternoon through Saturday - Last Update: Tue, 21-Jul-2026 2:51pm EDT

This Afternoon Widespread Showers And T-Storms	Tonight Widespread Showers And T-Storms	Wednesday Isolated Rain Showers then Scattered Showers And T-Storms	Wednesday Night Scattered Showers And T-Storms then Mostly Cloudy	Thursday Mostly Sunny	Thursday Night Partly Cloudy	Friday Sunny	Friday Night Partly Cloudy then Slight Chance Rain Showers	Saturday Slight Chance Rain Showers
Hi 90 °F	Lo 70 °F	Hi 85 °F	Lo 63 °F	Hi 80 °F	Lo 61 °F	Hi 81 °F	Lo 63 °F	Hi 80 °F

NWS Forecast Maps

NOAA Forecast Map for Today	NOAA Forecast Map for Tomorrow
Forecast map for Today courtesy of NOAA.	Forecast map for Tomorrow courtesy of NOAA.

Random Weather Facts

Lightning
At any given moment, there are about 1,800 thunderstorms happening around the world. Approximately 100 lightning bolts strike the earth every second.

Today in Weather History

Weather History for July 21

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.

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Contact Us

The weather data presented here is from a Weather Station that is privately owned and operated. The weather data collected by this weather station is not intended for legal use and is offered without any warranties expressed or implied. This site is solely supported by myself, owner of the Weather Station, and was specifically created for local residents along with weather enthusiasts. This website is neither affiliated with nor endorsed by the National Weather Service, the Town of Clifton or any other government agency. Your comments and suggestions are appreciated. Thanks for visiting. Never base important decisions on this or any weather information obtained from the Internet.

Clifton, Virginia Weather

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Random Weather Facts

Today in Weather History