Tall Timbers, MD
07/15/2026 02:00 PM
87°F
TEMPERATURE
Winds 3 mph W
Sunny
Sunny, with a high near 91. West wind 3 to 8 mph.

Alerts

You have (1) alert(s). Tap to see details.

Heat Advisory

Moderate
Heat Advisory issued July 15 at 8:24AM EDT until July 15 at 8:00PM EDT by NWS Baltimore MD/Washington DC
NWS Baltimore MD/Washington DC
Category Certainty Severity
Met Likely Moderate
Status Urgency Category
Actual Expected Met
Effective Ends Expires
07/15/2026 08:24 AM 07/15/2026 08:00 PM 07/15/2026 08:00 PM 
* WHAT...Heat index values of 105 to 109.

* WHERE...Washington DC, and portions of central, north central,
northeast, northern, and southern Maryland, and central, northern,
and northwest Virginia.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Moonrise
08:09 AM
Moonset
10:42 PM
Sunrise
05:54 AM
Moon Phase
Waxing crescent
Sunset
08:29 PM

Hourly Forecast

Wed, 02:00 PM

Sunny
Winds: 3 mph W
87°

Wed, 03:00 PM

Mostly Sunny
Winds: 6 mph W
88°

Wed, 04:00 PM

Sunny
Winds: 8 mph W
89°

Wed, 05:00 PM

Sunny
Winds: 7 mph W
90°

Wed, 06:00 PM

Clear
Winds: 6 mph SW
91°

Wed, 07:00 PM

Mostly Clear
Winds: 9 mph SW
90°

Wed, 08:00 PM

Clear
Winds: 12 mph SW
88°

Wed, 09:00 PM

Mostly Clear
Winds: 10 mph SW
87°

Wed, 10:00 PM

Partly Cloudy
Winds: 8 mph SW
86°

Wed, 11:00 PM

Partly Cloudy
Winds: 8 mph SW
86°

Thu, 12:00 AM

Partly Cloudy
Winds: 8 mph W
84°

Thu, 01:00 AM

Partly Cloudy
Winds: 9 mph W
83°

Thu, 02:00 AM

Partly Cloudy
Winds: 9 mph W
82°

Thu, 03:00 AM

Partly Cloudy
Winds: 9 mph W
82°

Thu, 04:00 AM

Partly Cloudy
Winds: 8 mph W
81°

Thu, 05:00 AM

Partly Cloudy
Winds: 8 mph W
81°

Thu, 06:00 AM

Mostly Sunny
Winds: 8 mph NW
80°

Thu, 07:00 AM

Sunny
Winds: 7 mph NW
80°

Thu, 08:00 AM

Mostly Sunny
Winds: 7 mph NW
81°

Thu, 09:00 AM

Mostly Sunny
Winds: 5 mph N
84°

Thu, 10:00 AM

Mostly Sunny
Winds: 3 mph NW
85°

Thu, 11:00 AM

Mostly Sunny
Winds: 5 mph W
85°

Thu, 12:00 PM

Mostly Sunny
Winds: 5 mph W
87°

Thu, 01:00 PM

Mostly Sunny
Winds: 5 mph W
88°

This Afternoon

Sunny
91°
Winds: 3 to 8 mph W
Sunny, with a high near 91. West wind 3 to 8 mph.

Tonight

Mostly Clear
80°
Winds: 6 to 12 mph SW
Mostly clear, with a low around 80. Southwest wind 6 to 12 mph, with gusts as high as 18 mph.

Thursday

Mostly Sunny then Patchy Smoke
92°
Winds: 3 to 8 mph W
Patchy smoke after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 100. West wind 3 to 8 mph.

Thursday Night

Slight Chance Showers And Thunderstorms
79°
Winds: 5 to 10 mph W
A slight chance of showers and thunderstorms between 8pm and 1am, then areas of smoke. Partly cloudy, with a low around 79. Heat index values as high as 101. West wind 5 to 10 mph. Chance of precipitation is 20%.

Friday

Areas Of Smoke
88°
Winds: 5 to 10 mph E
Areas of smoke. Mostly sunny, with a high near 88. East wind 5 to 10 mph.

Friday Night

Partly Cloudy
77°
Winds: 5 to 8 mph SE
Partly cloudy, with a low around 77.

Saturday

Slight Chance Showers And Thunderstorms
88°
Winds: 5 to 13 mph S
A slight chance of rain showers between 8am and 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 88. Chance of precipitation is 70%.

Saturday Night

Showers And Thunderstorms Likely
78°
Winds: 12 mph SW
Showers and thunderstorms likely. Mostly cloudy, with a low around 78. Chance of precipitation is 70%.

Sunday

Showers And Thunderstorms Likely
86°
Winds: 7 to 10 mph W
Showers and thunderstorms likely. Partly sunny, with a high near 86. Chance of precipitation is 70%.

Sunday Night

Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
74°
Winds: 7 mph N
Showers and thunderstorms likely before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 70%.

Monday

Mostly Sunny then Slight Chance Showers And Thunderstorms
84°
Winds: 7 mph E
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 20%.

Monday Night

Slight Chance Showers And Thunderstorms
76°
Winds: 8 mph S
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. Chance of precipitation is 20%.

Tuesday

Slight Chance Rain Showers then Chance Showers And Thunderstorms
86°
Winds: 6 to 13 mph SW
A slight chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 50%.

Tuesday Night

Chance Showers And Thunderstorms
76°
Winds: 9 to 13 mph W
A chance of showers and thunderstorms. Mostly cloudy, with a low around 76.

Coastal Waters Forecast

National Weather Service Baltimore MD/Washington DC

FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY.

Tidal Potomac River and Maryland portion of Chesapeake Bay. Forecasts of wave heights do not include effects of wind direction relative to tidal currents. Expect higher waves when winds are blowing against the tidal flow. Waves flat where waters are iced over. High pressure will shift to the south the second half of the week. A weak cold front will drop southward Thursday into Friday, then a stronger cold front will approach from the north Saturday.

Tidal Potomac from Key Bridge to Indian Head

THIS AFTERNOON
W winds 5 to 10 kt Waves 1 ft
TONIGHT
SW winds 5 to 10 kt Waves 1 ft
THU
NW winds around 5 kt Waves 1 ft Patchy smoke
THU NIGHT
NW winds 5 kt Waves less than 1 ft Areas of smoke
FRI
NE winds around 5 kt Waves 1 ft Areas of smoke
FRI NIGHT
SE winds around 5 kt Waves 1 ft A chance of showers
SAT
SW winds 5 to 10 kt Waves 1 ft Showers with tstms likely
SUN
NW winds 5 to 10 kt Waves 1 ft A chance of showers in the morning, then a chance of showers and tstms through the night
Reporting time 02:28 PM EDT Wed Jul 15 2026

Tidal Potomac from Indian Head to Cobb Island

THIS AFTERNOON
SW winds 5 kt Waves less than 1 ft
TONIGHT
SW winds 5 to 10 kt Waves 1 ft
THU
W winds around 5 kt Waves 1 ft Patchy smoke
THU NIGHT
SW winds 5 kt
FRI
NE winds around 5 kt Waves 1 ft Areas of smoke
FRI NIGHT
SE winds around 5 kt Waves 1 ft
SAT
SW winds 5 to 10 kt Waves 1 ft Tstms likely through the night Showers likely A chance of tstms after midnight
SUN
NW winds around 5 kt Waves 1 ft A chance of showers in the morning, then showers likely with a chance of tstms through the night
Reporting time 02:28 PM EDT Wed Jul 15 2026

Tidal Potomac from Cobb Island to Smith Point

THIS AFTERNOON
W winds 5 kt Waves less than 1 ft
TONIGHT
SW winds 10 to 15 kt
THU
W winds 5 to 10 kt
THU NIGHT
S winds 5 kt
FRI
NE winds 10 to 15 kt
FRI NIGHT
SE winds 5 to 10 kt Waves 1 ft
SAT
S winds 10 to 15 kt Waves 1 to 2 ft Showers likely with a chance of tstms
SUN
W winds 5 to 10 kt
Reporting time 02:28 PM EDT Wed Jul 15 2026

Chesapeake Bay north of Pooles Island

THIS AFTERNOON
SW winds 10 kt Waves 1 ft
TONIGHT
W winds 5 to 10 kt
THU
SE winds around 5 kt
THU NIGHT
NW winds 5 to 10 kt Waves 1 ft Areas of smoke
FRI
N winds around 5 kt Waves 1 ft or less Areas of smoke
FRI NIGHT
SE winds around 5 kt Waves 1 ft or less
SAT
S winds 5 to 10 kt Waves 1 ft Showers with tstms likely
SUN
NW winds 5 to 10 kt
Reporting time 02:28 PM EDT Wed Jul 15 2026

Chesapeake Bay from Pooles Island to Sandy Point

THIS AFTERNOON
SW winds 5 to 10 kt Waves 1 ft
TONIGHT
W winds 5 to 10 kt
THU
NW winds around 5 kt
THU NIGHT
W winds 5 to 10 kt
FRI
N winds 5 to 10 kt
FRI NIGHT
SE winds 5 to 10 kt Waves 1 ft
SAT
S winds 5 to 10 kt Waves 1 to 2 ft Showers with tstms likely
SUN
NW winds 5 to 10 kt
Reporting time 02:28 PM EDT Wed Jul 15 2026

Patapsco River including Baltimore Harbor

THIS AFTERNOON
W winds 10 kt Waves 1 ft
TONIGHT
W winds 5 to 10 kt Waves 1 ft
THU
W winds around 5 kt
THU NIGHT
NW winds 5 to 10 kt Waves 1 ft Areas of smoke
FRI
NE winds 5 kt Waves less than 1 ft Areas of smoke
FRI NIGHT
SE winds 5 kt Waves less than 1 ft
SAT
S winds 5 to 10 kt Waves 1 ft Showers with tstms likely
SUN
NW winds 5 to 10 kt
Reporting time 02:28 PM EDT Wed Jul 15 2026

Chester River to Queenstown MD

THIS AFTERNOON
SW winds 5 to 10 kt Waves 1 ft
TONIGHT
SW winds 5 to 10 kt
THU
NW winds around 5 kt
THU NIGHT
SW winds 5 to 10 kt
FRI
N winds 5 to 10 kt Waves 1 ft Areas of smoke
FRI NIGHT
SE winds around 5 kt Waves 1 ft
SAT
S winds 5 to 10 kt Waves 1 ft Showers with tstms likely
SUN
NW winds 5 to 10 kt
Reporting time 02:28 PM EDT Wed Jul 15 2026

Chesapeake Bay from Sandy Point to North Beach

THIS AFTERNOON
S winds 10 kt Waves 1 ft
TONIGHT
W winds 5 to 10 kt Waves 1 to 2 ft
THU
N winds 5 to 10 kt
THU NIGHT
SW winds 5 to 10 kt
FRI
NE winds 5 to 10 kt Waves 1 ft Areas of smoke
FRI NIGHT
S winds 5 to 10 kt Waves 1 ft
SAT
S winds 5 to 10 kt Waves 1 to 2 ft A chance of showers in the morning, then showers with tstms likely through the night A chance of showers and tstms after midnight
SUN
NW winds 5 to 10 kt
Reporting time 02:28 PM EDT Wed Jul 15 2026

Eastern Bay

THIS AFTERNOON
SW winds 10 kt Waves 1 ft
TONIGHT
W winds 5 to 10 kt Waves 1 ft
THU
NW winds around 5 kt
THU NIGHT
SW winds 5 to 10 kt
FRI
N winds 5 to 10 kt Waves 1 ft Areas of smoke
FRI NIGHT
SE winds 5 to 10 kt Waves 1 ft
SAT
S winds 5 to 10 kt Waves 1 ft Showers with tstms likely
SUN
NW winds 5 to 10 kt
Reporting time 02:28 PM EDT Wed Jul 15 2026

Chesapeake Bay from North Beach to Drum Point

THIS AFTERNOON
SW winds 5 to 10 kt Waves 1 ft
TONIGHT
SW winds 10 to 15 kt
THU
NW winds 5 to 10 kt
THU NIGHT
SW winds 5 to 10 kt
FRI
NE winds 5 to 10 kt Waves 1 to 2 ft Areas of smoke
FRI NIGHT
S winds 5 to 10 kt Waves 1 ft
SAT
S winds 10 to 15 kt
SUN
NW winds 5 to 10 kt Waves 1 ft A chance of showers in the morning, then showers likely with a chance of tstms through the night
Reporting time 02:28 PM EDT Wed Jul 15 2026

Choptank River to Cambridge MD and the Little Choptank River

THIS AFTERNOON
SW winds 10 kt Waves 1 ft
TONIGHT
SW winds 10 to 15 kt
THU
NW winds 5 to 10 kt
THU NIGHT
SW winds 5 to 10 kt
FRI
N winds 5 to 10 kt Waves 1 ft Areas of smoke
FRI NIGHT
S winds 5 to 10 kt Waves 1 ft
SAT
S winds 10 to 15 kt Waves 1 ft Showers and tstms likely
SUN
NW winds 5 to 10 kt
Reporting time 02:28 PM EDT Wed Jul 15 2026

Patuxent River to Broomes Island MD

THIS AFTERNOON
W winds 5 to 10 kt Waves 1 ft
TONIGHT
W winds 5 to 10 kt Waves 1 ft
THU
W winds around 5 kt Waves 1 ft Areas of smoke
THU NIGHT
SW winds 5 kt
FRI
NE winds 5 to 10 kt Waves 1 ft Areas of smoke
FRI NIGHT
SE winds 5 kt Waves less than 1 ft
SAT
S winds 5 to 10 kt Waves 1 ft Showers and tstms likely
SUN
NW winds 5 to 10 kt Waves 1 ft A chance of showers in the morning, then showers likely with a chance of tstms through the night
Reporting time 02:28 PM EDT Wed Jul 15 2026

Chesapeake Bay from Drum Point to Smith Point

THIS AFTERNOON
SW winds 5 to 10 kt Waves 1 ft
TONIGHT
SW winds 10 to 15 kt
THU
NW winds 5 to 10 kt
THU NIGHT
S winds 5 to 10 kt
FRI
NE winds 10 to 15 kt
FRI NIGHT
SE winds 5 to 10 kt Waves 2 ft
SAT
S winds 10 to 15 kt
SUN
W winds 10 to 15 kt
Reporting time 02:28 PM EDT Wed Jul 15 2026

Tangier Sound and the inland waters surrounding Bloodsworth Island

THIS AFTERNOON
SW winds 10 kt Waves 1 ft
TONIGHT
SW winds 10 to 15 kt
THU
W winds 5 to 10 kt
THU NIGHT
S winds 10 kt
FRI
NE winds 10 to 15 kt
FRI NIGHT
SE winds 5 to 10 kt Waves 1 ft
SAT
S winds 10 to 15 kt
SUN
W winds 10 to 15 kt
Reporting time 02:28 PM EDT Wed Jul 15 2026
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