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 Details for Charles Cnty, MD Coastal Flood Advisory
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 Details for Montgomery Cnty(NW), MD Test Message

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Coastal Flood Advisory COASTAL FLOOD ADVISORY - Charles Cnty, MD
Test Message TEST MESSAGE - Montgomery Cnty(C+SE), MD  - Montgomery Cnty(NW), MD

WASHINGTON DC METRO AREA FORECAST DISCUSSION
Increased precipitation chances this afternoon to accommodate light rain/drizzle moving across portions of the forecast area. Additionally, Coastal Flood Advisories were issued for Annapolis and Havre de Grace.

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: @ 29-Sep-2026 5:30pm - next update at 5:40pm  
Temperature Summary Outlook
Currently: 72.6, Max: 73.9, Min: 60.4 72.6°F
Colder 0.2°F than last hour.

Comfortable

Feels like: 73°F

24-hr difference
2.2°FWarmer 2.2°F than yesterday at this time.
  Today Yesterday
High: 73.9°F
3:44pm 		71.4°F
2:03pm
Low: 60.4°F
6:32am 		59.6°F
12:00am
High & Low September 2026
High:  95.7°F
01 September at 2:41 PM
Low:  47.9°F
25 September at 3:18 AM
Max Min:  73.9°F
02 September
Min Max:  63.1°F
23 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:  72.6°F
Coldest Wind Chill
Today:  60.4°F
at 6:32am
Yesterday:  59.6°F
at 12:00am
September 2026  47.9°F
25 September at 3:18 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: 1.0 Degree Days
Yesterday: 1.7 Degree Days
Cooling Degree Days
Today: 2.3 Degree Days
Yesterday: 1.8 Degree Days
Heat Index
Now:  72.6°F
Warmest Heat Index
Today:  73.9°F
at 15:44
Yesterday:  71.4°F
at 14:03
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
North North West WeatherCam
Overcast Overcast
Wind from ESE ESE
0
Gust:
 2 mph
0 Bft - Calm
Today: 7 mph 12:37pm
Gust Month: 20 mph September 3
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:  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:  4.7 miles
Yesterday:  15.4 miles
Highest Wind Run
September 2026  38.8 miles
25 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: 3.51 in
Season Total: 23.82 in
2 days 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
South South West WeatherCam
This
Afternoon
This Afternoon: Slight Chance Rain Showers
Slight Chance Rain Showers
Tonight

Tonight: Partly Cloudy then Patchy Fog
Partly Cloudy then Patchy Fog
Wednesday

Wednesday: Patchy Fog then Mostly Sunny
Patchy Fog then Mostly Sunny
Hi 73 °F Lo 58 °F Hi 81 °F
Lightning VA MD DC WV DE

Viginia Lighting
Radar Washington DC Metro Area

GRLevel3 radar images are not available at this time.
Storm Prediction Center Activity Chart

SPC Activity

Humidity & Barometer
Humidity: 74 % Increased 1.0% since last hour.
Dew Point: 63.8°F Decreased 0.7°F since last hour.
Barometer: 30.03 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: 7:02am
Sunset: 6:57pm
Moonset: 10:26am
Moonrise: 8:21pm

Day Length:  11:51
Dawn:  06:37
Dusk:  19:22
Daylight Length:  12:45
 There will be 2min 32s less daylight tomorrow

Cloud Base

cloudbase
CB AGL: 1992 ft
UV Index

   0.0   
None
High: 4.5 @ 12:52pm

Solar Radiation
74 W/m2
High: 591 @  12:48pm

Air Quality Index
Current AQI
4
Good

Sunlight

11 hrs 54 min 29 sec
of Sunlight Today
Which is
2 min 30 sec Shorter
Than Yesterday
(Noon) graph (Midnight)
 Legend

Moon


Waning Gibbous
Waning Gibbous, Moon at 17 days in cycle
87% %
Illuminated
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Slight Chance Rain Showers
Slight Chance Rain Showers

Hi 73 °F		 NWS forecast: A slight chance of rain showers. Partly sunny, with a high near 73. Northwest wind around 2 mph. Chance of precipitation is 20%.
Davis VP+ forecast: Increasing clouds with little temperature change. Precipitation possible within 24 to 48 hours.		   Tonight

Tonight: Partly Cloudy then Patchy Fog
Partly Cloudy then Patchy Fog

Lo 58 °F		 NWS forecast: Patchy fog after 2am. Partly cloudy, with a low around 58. Northwest wind around 2 mph.
 NWS Weather Forecast  - Five Day Outlook for This Afternoon through Saturday - Last Update: Tue, 29-Sep-2026 4:53pm EDT
This
Afternoon
This Afternoon: Slight Chance Rain Showers
Slight Chance Rain Showers
Tonight

Tonight: Partly Cloudy then Patchy Fog
Partly Cloudy then Patchy Fog
Wednesday

Wednesday: Patchy Fog then Mostly Sunny
Patchy Fog then Mostly Sunny
Wednesday
Night
Wednesday Night: Mostly Cloudy
Mostly Cloudy
Thursday

Thursday: Mostly Sunny
Mostly Sunny
Thursday
Night
Thursday Night: Partly Cloudy
Partly Cloudy
Friday

Friday: Mostly Sunny
Mostly Sunny
Friday
Night
Friday Night: Chance Rain Showers
Chance Rain Showers
Saturday

Saturday: Chance Rain Showers
Chance Rain Showers
Hi 73 °F Lo 58 °F Hi 81 °F Lo 63 °F Hi 84 °F Lo 63 °F Hi 87 °F Lo 62 °F Hi 71 °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
Freeze Warning - Widespread temperatures at or below 32°F during the growing season. A freeze may occur with or without frost. A hard freeze occurs with temperatures below 28°F. Growing season is based on the average date of first and last freeze at O'Hare. It begins April 17 and ends October 27.

Today in Weather History

Weather History for September 29
 
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.