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

WASHINGTON DC METRO AREA FORECAST DISCUSSION
Sever Thunderstorm Watch through midnight for Harford and Cecil counties in northeast Maryland.

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-Sep-2026 12:00am - next update at 12:10am  
Temperature Summary Outlook
Currently: 79.4, Max: 79.4, Min: 79.4 79.4°F
Colder 1.6°F than last hour.

Warm

Feels like: 79°F

24-hr difference
3.8°FWarmer 3.8°F than yesterday at this time.
  Today Yesterday
High: 79.4°F
12:00am 		95.7°F
2:41pm
Low: 79.4°F
12:00am 		73.4°F
6:13am
High & Low September 2026
High:  95.7°F
01 September at 2:41 PM
Low:  73.4°F
01 September at 6:13 AM
Max Min:  73.4°F
01 September
Min Max:  95.7°F
01 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:  79.4°F
Coldest Wind Chill
Today:  79.4°F
at 12:00am
Yesterday:  73.4°F
at 6:13am
September 2026  73.4°F
01 September at 6:13 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: 0.0 Degree Days
Yesterday: 18.6 Degree Days
Heat Index
Now:  79.4°F
Warmest Heat Index
Today:  79.4°F
at 00:00
Yesterday:  114.3°F
at 14:18
September 2026  114.3°F
01 September at 2:18 PM
2026  128.9°F
04 July at 3:04 PM
Station Record September  116.0°F
at 13:37 on 07 September 2023
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
Few Clouds Few Clouds
Wind from ESE ESE
0
Gust:
 2 mph
0 Bft - Calm
Today: 0 mph 12:00am
Gust Month: 10 mph September 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 September 2026
High Gust:  10 mph
01 September at 2:59 PM
High Average:  3 mph
01 September at 2:51 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:  0.0 miles
Yesterday:  10.0 miles
Highest Wind Run
September 2026  10.0 miles
01 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: 0.00 in
Rain Rate (/hr): 0.00 in
Rain Yesterday: 0.00 in
This Month: 0.00 in
Season Total: 20.31 in
3 days since last rain.

Days Since Last Dry Day: 0
Station High September 2026
High Day:  0.00 in
01 September
High Hour:  0.00 in
01 September at 12:00 AM
High Rain Rate /hr:  0.00 in
01 September 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:  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
South South West WeatherCam
Overnight

Overnight: Partly Cloudy
Partly Cloudy
Wednesday

Wednesday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Lo 74 °F Hi 93 °F Lo 74 °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: 80 % Decreased 2.0% since last hour.
Dew Point: 72.7°F Decreased 1.6°F since last hour.
Barometer: 30.00 inHg Rising 0.01 inHg/hr
Baro Trend: Rising 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: 6:38am
Sunset: 7:40pm
Moonset: 12:38pm
Moonrise: 10:20pm

Day Length:  12:59
Dawn:  06:12
Dusk:  20:05
Daylight Length:  13:53
 There will be 2min 26s less daylight tomorrow

Cloud Base

cloudbase
CB AGL: 1526 ft
UV Index

   0.0   
None
High: 0.0 @ 12:00am

Solar Radiation
0 W/m2
High: 0 @  12:00am

Air Quality Index
Current AQI
53
Moderate

Sunlight

13 hrs 1 min 34 sec
of Sunlight Today
Which is
2 min 25 sec Shorter
Than Yesterday
(Noon) graph (Midnight)
 Legend

Moon


Waning Gibbous
Waning Gibbous, Moon at 19 days in cycle
74% %
Illuminated
 NWS Weather Forecast  - Outlook: Overnight & Wednesday
Overnight

Overnight: Partly Cloudy
Partly Cloudy

Lo 74 °F		 NWS forecast: Partly cloudy, with a low around 74. Northwest wind around 2 mph.
Davis VP+ forecast: Increasing clouds with little temperature change.		   Wednesday

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

Hi 93 °F		 NWS forecast: A slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 93. Heat index values as high as 100. Northeast wind 2 to 6 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
 NWS Weather Forecast  - Five Day Outlook for Overnight through Saturday Night - Last Update: Tue, 01-Sep-2026 10:52pm EDT
Overnight

Overnight: Partly Cloudy
Partly Cloudy
Wednesday

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

Thursday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Thursday
Night
Thursday Night: Chance Showers And Thunderstorms
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
Slight Chance Rain Showers
Saturday
Night
Saturday Night: Slight Chance Rain Showers
Slight Chance Rain Showers
Lo 74 °F Hi 93 °F Lo 74 °F Hi 92 °F Lo 75 °F Hi 91 °F Lo 70 °F Hi 85 °F Lo 64 °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

Snow
Snowflakes generally fall from the sky at speeds between one and five miles per hour.

Today in Weather History

Weather History for September 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.