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

WASHINGTON DC METRO AREA FORECAST DISCUSSION
Monitoring a signal in the incoming model data and upstream observations that suggests a potential heavy rain threat into northern Virginia this evening.

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: @ 07-Jul-2026 12:40pm - next update at 12:50pm  
Temperature Summary Outlook
Currently: 77.6, Max: 77.6, Min: 72.2 77.6°F
Warmer 1.0°F than last hour.

Comfortable

Feels like: 78°F

24-hr difference
-6.8°FColder 6.8°F than yesterday at this time.
  Today Yesterday
High: 77.6°F
12:37pm 		90.0°F
4:01pm
Low: 72.2°F
2:43am 		73.0°F
6:36am
High & Low July 2026
High:  101.6°F
04 July at 3:01 PM
Low:  71.9°F
01 July at 6:03 AM
Max Min:  77.2°F
03 July
Min Max:  90.0°F
06 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:  77.2°F
03 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:  77.6°F
Coldest Wind Chill
Today:  72.2°F
at 2:43am
Yesterday:  73.0°F
at 6:36am
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: 4.8 Degree Days
Yesterday: 14.6 Degree Days
Heat Index
Now:  77.6°F
Warmest Heat Index
Today:  77.6°F
at 12:37
Yesterday:  106.6°F
at 15:19
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
North North West WeatherCam
Overcast Overcast
Calm -
0
Gust:
 0 mph
0 Bft - Calm
Today: 4 mph 12:07am
Gust Month: 15 mph July 4
Rain Today:  0.19 in
Rain Rate /hr  0.00 in
Rain Last Hour:  0.00 in
Rain 24hrs:  0.66 in
Wind

Station High July 2026
High Gust:  15 mph
04 July at 8:48 PM
High Average:  4 mph
05 July at 7:03 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:  1.0 miles
Yesterday:  10.3 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: 0.19 in
Rain Rate (/hr): 0.00 in
Rain Yesterday: 0.49 in
This Month: 0.80 in
Season Total: 12.25 in
0 day since last rain.

Days Since Last Dry Day: 3
Station High July 2026
High Day:  0.49 in
06 July
High Hour:  0.41 in
06 July at 11:55 PM
High Rain Rate /hr:  1.16 in
06 July at 10:57 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
South South West WeatherCam
This
Afternoon
This Afternoon: Scattered Showers And Thunderstorms
Scattered Showers And T-Storms
Tonight

Tonight: Chance Showers And Thunderstorms then Patchy Fog
Chance Showers And T-Storms then Patchy Fog
Wednesday

Wednesday: Chance Rain Showers then Slight Chance Showers And Thunderstorms
Chance Rain Showers then Slight Chance Showers And T-Storms
Hi 84 °F Lo 70 °F Hi 82 °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: 91 % Decreased 3.0% since last hour.
Dew Point: 74.8°F Increased 1.0°F since last hour.
Barometer: 30.01 inHg  
Baro Trend: Steady
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: 5:50am
Sunset: 8:39pm
Moonrise: 12:13am
Moonset: 1:24pm

Day Length:  14:45
Dawn:  05:20
Dusk:  21:09
Daylight Length:  15:48
 There will be 0min 55s less daylight tomorrow

Cloud Base

cloudbase
CB AGL: 644 ft
UV Index

   1.3   
 Low 
High: 3.0 @ 12:21pm

Solar Radiation
144 W/m2
High: 316 @  12:22pm

Air Quality Index
Current AQI
56
Moderate

Sunlight

14 hrs 48 min 54 sec
of Sunlight Today
Which is 52 sec Shorter
Than Yesterday
(Noon) graph (Midnight)
 Legend

Moon


Waning Gibbous
Waning Gibbous, Moon at 21 days in cycle
51% %
Illuminated
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Scattered Showers And Thunderstorms
Scattered Showers And T-Storms

Hi 84 °F		 NWS forecast: Scattered showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. Northeast wind around 5 mph. Chance of precipitation is 40%. 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

Tonight: Chance Showers And Thunderstorms then Patchy Fog
Chance Showers And T-Storms then Patchy Fog

Lo 70 °F		 NWS forecast: A chance of showers and thunderstorms before 10pm, then showers and thunderstorms likely between 10pm and midnight, then patchy fog and a chance of showers and thunderstorms. Mostly cloudy, with a low around 70. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
 NWS Weather Forecast  - Five Day Outlook for This Afternoon through Saturday - Last Update: Tue, 07-Jul-2026 11:43am EDT
This
Afternoon
This Afternoon: Scattered Showers And Thunderstorms
Scattered Showers And T-Storms
Tonight

Tonight: Chance Showers And Thunderstorms then Patchy Fog
Chance Showers And T-Storms then Patchy Fog
Wednesday

Wednesday: Chance Rain Showers then Slight Chance Showers And Thunderstorms
Chance Rain Showers then Slight Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Thursday

Thursday: Showers And Thunderstorms
Showers And T-Storms
Thursday
Night
Thursday Night: Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Showers And T-Storms then Slight Chance Showers And T-Storms
Friday

Friday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms
Friday
Night
Friday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Saturday

Saturday: Slight Chance Rain Showers then Chance Showers And Thunderstorms
Slight Chance Rain Showers then Chance Showers And T-Storms
Hi 84 °F Lo 70 °F Hi 82 °F Lo 71 °F Hi 86 °F Lo 70 °F Hi 88 °F Lo 70 °F Hi 86 °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
Blowing Snow Advisory - Widespread blowing snow with winds 25 to 35 mph, occasionally reducing visibility to 1/4 mile or less.

Today in Weather History

Weather History for July 7
 
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.