Extreme Heat Warning EXTREME HEAT WARNING - Alexandria, VA  - Arlington Cnty, VA  - Charles Cnty, MD  - Fairfax, VA  - Fairfax Cnty, VA  - Falls Church, VA  - Fauquier Cnty(N), VA  - Fauquier Cnty(S), VA  - Loudon Cnty(E), VA  - Loudon 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  - Washington, DC
Small Craft Advisory SMALL CRAFT ADVISORY - Tidal Potomac
Extreme Heat Watch EXTREME HEAT 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  - Loudon Cnty(E), VA  - Loudon 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  - Washington, DC
Air Quality Alert AIR QUALITY ALERT - Charles Cnty, MD  - Montgomery Cnty(C+SE), MD  - Montgomery Cnty(NW), MD  - Prince Georges Cnty, MD
Test Message TEST MESSAGE - Montgomery Cnty(C+SE), MD  - Montgomery Cnty(NW), MD

WASHINGTON DC METRO AREA FORECAST DISCUSSION
Extreme Heat Watch was issued for Independence Day for most areas east of the Blue Ridge due to extremely high vulnerability and potential for reaching head indices around 110. Today will be an extremely hot and humid day. Be sure to stay hydrated, cool down in an air conditioned location, take plenty of breaks if outdoors, and don`t leave children/pets unattended in vehicles.

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: @ 02-Jul-2026 12:50pm - next update at 1:00pm  
Temperature Summary Outlook
Currently: 96.1, Max: 96.1, Min: 76.7 96.1°F
Warmer 2.2°F than last hour.

Extremely Hot

Feels like: 108°F

24-hr difference
1°FWarmer 1.0°F than yesterday at this time.
  Today Yesterday
High: 96.1°F
12:47pm
99.0°F
4:01pm
Low: 76.7°F
6:16am
71.9°F
6:03am
High & Low July 2026
High:  99.0°F
01 July at 4:01 PM
Low:  71.9°F
01 July at 6:03 AM
Max Min:  71.9°F
01 July
Min Max:  99.0°F
01 July
High and Low 2026
High:  99.0°F
01 July at 4:01 PM
Low:  5.2°F
27 January at 7:52 AM
Max Min:  72.2°F
18 June
Min Max:  18.4°F
25 January
Record July
High:  100.8°F
at 15:25 on 20 July 2020
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:  96.1°F
Coldest Wind Chill
Today:  76.7°F
at 6:16am
Yesterday:  71.9°F
at 6:03am
July 2026  71.9°F
01 July at 6:03 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: 20.4 Degree Days
Heat Index
Now:  113.7°F
Warmest Heat Index
Today:  121.0°F
at 12:46
Yesterday:  127.5°F
at 14:34
July 2026  127.5°F
01 July at 2:34 PM
2026  127.5°F
01 July at 2:34 PM
Station Record July  127.5°F
at 14:34 on 01 July 2026
Station All Time  127.5°F
at 14:34 on 01 July 2026
Records began on 24 December 2012
WeatherCam Thumbnail
North North West Camera
North North West WeatherCam
Few Clouds Few Clouds
 Wind from NNW NNW
1
Gust:
5 mph
0 Bft - Calm
Today: 7 mph 9:45am
Gust Month: 8 mph July 1
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:  8 mph
01 July at 2:17 PM
High Average:  3 mph
01 July at 2:05 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:  6.3 miles
Yesterday:  14.1 miles
Highest Wind Run
July 2026  14.1 miles
01 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: 0.00 in
Season Total: 11.45 in
4 days since last rain.

Days Since Last Dry Day: 0
Station High July 2026
High Day:  0.00 in
01 July
High Hour:  0.00 in
01 July at 12:00 AM
High Rain Rate /hr:  0.00 in
01 July at 12:00 AM
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
South South West WeatherCam
This
Afternoon
This Afternoon: Sunny
Sunny
Tonight

Tonight: Clear
Clear
Friday

Friday: Sunny then Slight Chance Showers And Thunderstorms
Sunny then Slight Chance Showers And T-Storms
Hi 101 °F Lo 78 °F Hi 102 °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: 58 % Decreased 5.0% since last hour.
Dew Point: 78.9°F Decreased 1.3°F since last hour.
Barometer: 30.05 inHg Falling 0.01  inHg/hr
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
firedanger
Almanac
Sunrise: 5:47am
Sunset: 8:40pm
Moonset: 8:03am
Moonrise: 10:38pm

Day Length:  14:49
Dawn:  05:17
Dusk:  21:11
Daylight Length:  15:53
 There will be 0min 41s less daylight tomorrow

Cloud Base

cloudbase
CB AGL: 4022 ft
UV Index

   7.0   
 High 
High: 7.6 @ 12:46pm

Solar Radiation
1039 W/m2
High: 1060 @  12:47pm

Air Quality Index
Current AQI
56
  Moderate

Sunlight

14 hrs 52 min 46 sec
of Sunlight Today
Which is 37 sec Shorter
Than Yesterday

(Noon)
graph (Midnight)
Legend

Moon


Waning Gibbous
Waning Gibbous, Moon at 16 days in cycle
93% %
Illuminated
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Sunny
Sunny

Hi 101 °F
NWS forecast: Sunny, with a high near 101. Heat index values as high as 110. Southwest wind around 5 mph.
Davis VP+ forecast: Increasing clouds with little temperature change. Precipitation possible within 24 to 48 hours.
  Tonight

Tonight: Clear
Clear

Lo 78 °F
NWS forecast: Clear, with a low around 78. Heat index values as high as 107. West wind around 3 mph.
 NWS Weather Forecast  - Five Day Outlook for This Afternoon through Monday - Last Update: Thu, 02-Jul-2026 12:42pm EDT
This
Afternoon
This Afternoon: Sunny
Sunny
Tonight

Tonight: Clear
Clear
Friday

Friday: Sunny then Slight Chance Showers And Thunderstorms
Sunny then Slight Chance Showers And T-Storms
Friday
Night
Friday Night: Slight Chance Showers And Thunderstorms then Mostly Clear
Slight Chance Showers And T-Storms then Mostly Clear
Independence
Day
Independence Day: Sunny then Showers And Thunderstorms Likely
Sunny then Showers And T-Storms Likely
Saturday
Night
Saturday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Sunday

Sunday: Partly Sunny then Showers And Thunderstorms Likely
Partly Sunny then Showers And T-Storms Likely
Sunday
Night
Sunday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Monday

Monday: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Hi 101 °F Lo 78 °F Hi 102 °F Lo 78 °F Hi 100 °F Lo 74 °F Hi 95 °F Lo 71 °F Hi 88 °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

Wind Chill
Everyone has noticed that in winter it seems colder when the wind is blowing. Mothers recognize this and tell their children to wear more clothes. The question the children ask is how much more clothes. Mothers answer very precisely because Mothers know everything. For the rest of us, wind chill calculations are the basis for determining the effect of wind on body heat loss. The wind chill equivalent temperature equation is: Wind chill temperature = 35.74 + 0.6215T - 35.75V (**0.16) + 0.4275TV(**0.16) where T is the air temperature in Fahrenheit and V is the wind speed in MPH.

Today in Weather History

Weather History for July 2
 
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.