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 Details for Tidal Potomac Small Craft Advisory
 Tidal Potomac
 Details for Tidal Potomac Small Craft Advisory
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 Details for Montgomery Cnty(NW), MD Test Message

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Small Craft Advisory SMALL CRAFT ADVISORY - Tidal Potomac
Test Message TEST MESSAGE - Montgomery Cnty(C+SE), MD  - Montgomery Cnty(NW), MD

WASHINGTON DC METRO AREA FORECAST DISCUSSION
Winds gust up to 20 knots early this morning before diminishing later this morning as a cold front departs the forecast area. Additionally, tidal anomalies at Annapolis continue to rise as water levels near minor flood stage. Otherwise, no major changes were made to the forecast overnight with a Freeze Watch in effect for tonight.

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-May-2026 6:30am - next update at 6:40am  
Temperature Summary Outlook
Currently: 48.2, Max: 57.5, Min: 48.1 48.2°F
Colder 1.9°F than last hour.

Cool

Feels like: 48°F

24-hr difference
6.5°FWarmer 6.5°F than yesterday at this time.
  Today Yesterday
High: 57.5°F
12:00am 		69.5°F
2:22pm
Low: 48.1°F
6:29am 		41.4°F
5:47am
High & Low May 2026
High:  69.5°F
01 May at 2:22 PM
Low:  41.4°F
01 May at 5:47 AM
Max Min:  41.4°F
01 May
Min Max:  69.5°F
01 May
High and Low 2026
High:  94.0°F
16 April at 2:47 PM
Low:  5.2°F
27 January at 7:52 AM
Max Min:  66.9°F
04 April
Min Max:  18.4°F
25 January
Record May
High:  93.7°F
at 15:47 on 31 May 2022
Low:  32.0°F
at 03:46 on 10 May 2020
Max Min:  72.0°F
at 23:59 on 27 May 2015
Min Max:  51.3°F
at 14:37 on 09 May 2020
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:  48.2°F
Coldest Wind Chill
Today:  48.1°F
at 6:29am
Yesterday:  41.4°F
at 5:47am
May 2026  41.4°F
01 May at 5:47 AM
2026  2.9°F
01 February at 8:34 AM
Station May  27.4°F
at 07:06 on 09 May 2020
Station All Time  °F
Records began on 24 December 2012
Degree Days
Heating Degree Days
Today: 3.1 Degree Days
Yesterday: 9.6 Degree Days
Cooling Degree Days
Today: 0.0 Degree Days
Yesterday: 0.8 Degree Days
Heat Index
Now:  48.2°F
Warmest Heat Index
Today:  57.5°F
at 00:00
Yesterday:  69.5°F
at 14:22
May 2026  69.5°F
01 May at 2:22 PM
2026  97.0°F
16 April at 3:01 PM
Station Record May  105.0°F
at 13:55 on 26 May 2021
Station All Time  124.4°F
at 13:24 on 25 June 2025
Records began on 24 December 2012
WeatherCam Thumbnail
North North West Camera
North North West WeatherCam
Mostly cloudy Mostly cloudy
Wind from NNW NNW
1
Gust:
 7 mph
0 Bft - Calm
Today: 14 mph 4:57am
Gust Month: 14 mph May 2
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 May 2026
High Gust:  14 mph
02 May at 4:57 AM
High Average:  4 mph
01 May at 3:19 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 May
High Gust:  27 mph
at 15:33 on 26 May 2017
High Average:  15 mph
at 14:07 on 08 May 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:  9.7 miles
Yesterday:  18.4 miles
Highest Wind Run
May 2026  18.4 miles
01 May
2026  101.4 miles
07 February
May  139.2 miles
on 13 May 2015
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: 8.12 in
3 days since last rain.

Days Since Last Dry Day: 0
Station High May 2026
High Day:  0.00 in
01 May
High Hour:  0.00 in
01 May at 12:00 AM
High Rain Rate /hr:  0.00 in
01 May 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 May
High Day:  2.46 in
on 31 May 2018
High Hour:  2.16 in
at 18:26 on 31 May 2018
High Rain Rate /hr:  7.29 in
at 20:36 on 26 May 2021
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: Mostly Cloudy
Mostly Cloudy
Saturday

Saturday: Mostly Cloudy
Mostly Cloudy
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Lo 46 °F Hi 61 °F Lo 41 °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: 69 % Increased 2.0% since last hour.
Dew Point: 38.5°F Decreased 0.9°F since last hour.
Barometer: 29.95 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: 6:08am
Sunset: 8:04pm
Moonset: 6:14am
Moonrise: 9:28pm

Day Length:  13:52
Dawn:  05:42
Dusk:  20:32
Daylight Length:  14:49
 There will be 2min 5s more daylight tomorrow

Cloud Base

cloudbase
CB AGL: 2204 ft
UV Index

   0.0   
None
High: 0.0 @ 12:00am

Solar Radiation
12 W/m2
High: 12 @  6:29am

Air Quality Index
Current AQI
4
Good

Sunlight

13 hrs 55 min 24 sec
of Sunlight Today
Which is
2 min 8 sec Longer
Than Yesterday
(Noon) graph (Midnight)
 Legend

Moon


Full Moon
Full Moon, Moon at 15 days in cycle
100% %
Illuminated
 NWS Weather Forecast  - Outlook: Overnight & Saturday
Overnight

Overnight: Mostly Cloudy
Mostly Cloudy

Lo 46 °F		 NWS forecast: Mostly cloudy, with a low around 46. Northwest wind around 10 mph, with gusts as high as 20 mph.
Davis VP+ forecast: Not available		   Saturday

Saturday: Mostly Cloudy
Mostly Cloudy

Hi 61 °F		 NWS forecast: Mostly cloudy, with a high near 61. Northwest wind around 10 mph, with gusts as high as 20 mph.
 NWS Weather Forecast  - Five Day Outlook for Overnight through Tuesday Night - Last Update: Sat, 02-May-2026 4:56am EDT
Overnight

Overnight: Mostly Cloudy
Mostly Cloudy
Saturday

Saturday: Mostly Cloudy
Mostly Cloudy
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Sunday

Sunday: Sunny
Sunny
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Monday

Monday: Mostly Sunny
Mostly Sunny
Monday
Night
Monday Night: Slight Chance Rain Showers
Slight Chance Rain Showers
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Tuesday
Night
Tuesday Night: Partly Cloudy then Slight Chance Rain Showers
Partly Cloudy then Slight Chance Rain Showers
Lo 46 °F Hi 61 °F Lo 41 °F Hi 65 °F Lo 44 °F Hi 75 °F Lo 57 °F Hi 82 °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

Lightning
Lightning can strike the same place twice and sometimes many times. The Empire State Building in New York City is struck an average of 23 times a year. During one thunderstorm it was struck 8 times in 24 minutes.

Today in Weather History

Weather History for May 2
 
1986   Hailstones weighing up to 11 pounds were reported in China! 16 people were killed and 125 injured.
1895   A tornado that was nearly a mile wide produced F5 level damage to farms northwest of Wichita, KS. Two families suffered four fatalities each when they hesitated before heading for the storm cellar. The massive width of the tornado may have made it difficult to recognize as a funnel.