Clifton, Virginia Weather

66°F

Clifton, Virginia, USA

Updated: 21-Sep-2026 5:10pm

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Montgomery Cnty(C+SE), MD

Montgomery Cnty(NW), MD

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SMALL CRAFT ADVISORY - Tidal Potomac

GALE WATCH - Tidal Potomac

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

WASHINGTON DC METRO AREA FORECAST DISCUSSION
A solid line of thunderstorms has developed from near Canaan Valley south to Greenbrier County in West Virginia as of 2 PM. This line is expected to move east and weaken while crossing the mountains this afternoon. Meanwhile, have expanded the Small Craft Advisory to include all zones starting at 6 PM tonight.

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-Sep-2026 5:10pm - next update at 5:20pm

Temperature

Summary

Outlook

66.0°F

Comfortable

Feels like: 66°F

24-hr difference
-15.6°F

	Today	Yesterday
High:	74.8°F 12:00am	84.0°F 3:47pm
Low:	66.0°F 5:09pm	69.7°F 7:21am

High & Low September 2026
High:		95.7°F
01 September at 2:41 PM
Low:		52.3°F
15 September at 7:08 AM
Max Min:		73.9°F
02 September
Min Max:		79.4°F
15 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:		66.0°F
Coldest Wind Chill
Today:		66.0°F
at 5:09pm
Yesterday:		69.7°F
at 7:21am

September 2026		52.3°F
15 September at 7:08 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:		0.0 Degree Days
Yesterday:		0.0 Degree Days
Cooling Degree Days
Today:		4.0 Degree Days
Yesterday:		11.0 Degree Days

Heat Index

Now:		66.0°F
Warmest Heat Index
Today:		74.8°F
at 00:00
Yesterday:		92.2°F
at 15:47
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

	Light rain, Overcast
	SSE 0 Gust: 3 mph
0 Bft - Calm
Today: 8 mph 12:00am
Gust Month: 20 mph September 3

Rain Today:	0.32 in
Rain Rate /hr	0.07 in
Rain Last Hour:	0.32 in
Rain 24hrs:	0.32 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:	10.6 miles
Yesterday:	18.8 miles
Highest Wind Run
September 2026	33.5 miles
14 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:	0.32 in
Rain Rate (/hr):	0.07 in
Rain Yesterday:	0.00 in
This Month:	2.39 in
Season Total:	22.70 in
0 day since last rain.

Days Since Last Dry Day:	0
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

This Afternoon Chance Rain Showers	Tonight Showers And T-Storms	Tuesday Showers And T-Storms
Hi 72 °F	Lo 61 °F	Hi 64 °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:

92 %

Dew Point:

63.6°F

Barometer:

30.02 inHg

Baro Trend:

Falling 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

Almanac

Sunrise:	6:55am
Sunset:	7:09pm
Moonset:	1:30am
Moonrise:	4:42pm

Day Length:		12:11
Dawn:		06:30
Dusk:		19:35
Daylight Length:		13:05
There will be 2min 32s less daylight tomorrow

Cloud Base

CB AGL:

543 ft

UV Index

0.0
None

High: 2.9 @ 11:44am

Solar Radiation

53 W/m²

High: 554 @ 9:56am

Air Quality Index

Current AQI
23

Sunlight

12 hrs 14 min 31 sec
of Sunlight Today
Which is
2 min 30 sec Shorter
Than Yesterday
(Noon)

(Midnight)
Legend

Moon

Waxing Gibbous

77% %
Illuminated

NWS Weather Forecast - Outlook: This Afternoon & Tonight

This
Afternoon

Chance Rain Showers

Hi 72 °F

NWS forecast: A chance of rain showers. Cloudy, with a high near 72. Northeast wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Davis VP+ forecast: Increasing clouds with little temperature change. Precipitation possible within 24 to 48 hours.

Tonight

Showers And T-Storms

Lo 61 °F

NWS forecast: A chance of rain showers before 11pm, then showers and thunderstorms. Cloudy, with a low around 61. East wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

NWS Weather Forecast - Five Day Outlook for This Afternoon through Friday - Last Update: Mon, 21-Sep-2026 4:53pm EDT

This Afternoon Chance Rain Showers	Tonight Showers And T-Storms	Tuesday Showers And T-Storms	Tuesday Night Patchy Fog	Wednesday Light Rain	Wednesday Night Chance Light Rain	Thursday Partly Sunny	Thursday Night Mostly Cloudy	Friday Mostly Sunny
Hi 72 °F	Lo 61 °F	Hi 64 °F	Lo 55 °F	Hi 64 °F	Lo 54 °F	Hi 66 °F	Lo 50 °F	Hi 66 °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

Cloud Base
The cloud base is the distance from the sea level to the base of the clouds. It is estimated using the current temperature and humidity to indicate an altitude where the air could be cold enough for clouds to form. There may or may not be clouds at that altitude (or at any altitude)

Today in Weather History

Weather History for September 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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North America Lightning

Current Clifton Virginia Conditions & NWS Forecast

NWS Forecast Maps

NOAA Forecast Map for Today

NOAA Forecast Map for Tomorrow

Random Weather Facts

Today in Weather History