Tall Timbers, MD
07/01/2026 08:00 PM
87°F
TEMPERATURE
Winds 12 mph S
Mostly Clear
Mostly clear, with a low around 78. South wind 7 to 12 mph.

Alerts

You have (3) alert(s). Tap to see details.

Extreme Heat Warning

Severe
Extreme Heat Warning issued July 1 at 7:57PM EDT until July 3 at 8:00PM EDT by NWS Baltimore MD/Washington DC
NWS Baltimore MD/Washington DC
Category Certainty Severity
Met Likely Severe
Status Urgency Category
Actual Expected Met
Effective Ends Expires
07/01/2026 07:57 PM 07/03/2026 08:00 PM 07/02/2026 04:00 AM 
* WHAT...For the first Extreme Heat Warning, dangerously hot
conditions with heat index values up to 112 expected. For the
second Extreme Heat Warning, dangerously hot conditions with heat
index values up to 112 expected.

* WHERE...The Washington and Baltimore metropolitan areas including
the District of Columbia and city of Baltimore, northeast,
central, and southern Maryland, as well as northern Virginia and
the Virginia Piedmont.

* WHEN...For the first Extreme Heat Warning, from 10 AM to 8 PM EDT
Thursday. For the second Extreme Heat Warning, from 10 AM to 8 PM
EDT Friday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.

Extreme Heat Warning

Severe
Extreme Heat Warning issued July 1 at 7:57PM EDT until July 2 at 8:00PM EDT by NWS Baltimore MD/Washington DC
NWS Baltimore MD/Washington DC
Category Certainty Severity
Met Likely Severe
Status Urgency Category
Actual Expected Met
Effective Ends Expires
07/01/2026 07:57 PM 07/02/2026 08:00 PM 07/02/2026 04:00 AM 
* WHAT...For the first Extreme Heat Warning, dangerously hot
conditions with heat index values up to 112 expected. For the
second Extreme Heat Warning, dangerously hot conditions with heat
index values up to 112 expected.

* WHERE...The Washington and Baltimore metropolitan areas including
the District of Columbia and city of Baltimore, northeast,
central, and southern Maryland, as well as northern Virginia and
the Virginia Piedmont.

* WHEN...For the first Extreme Heat Warning, from 10 AM to 8 PM EDT
Thursday. For the second Extreme Heat Warning, from 10 AM to 8 PM
EDT Friday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.

Air Quality Alert

Unknown
Air Quality Alert issued July 1 at 4:40PM EDT by NWS Baltimore MD/Washington DC
NWS Baltimore MD/Washington DC
Category Certainty Severity
Met Unknown Unknown
Status Urgency Category
Actual Unknown Met
Effective Ends Expires
07/01/2026 04:40 PM 07/01/2026 08:59 PM 07/03/2026 12:00 AM 
The Maryland Department of the Environment has issued a Code
ORANGE Air Quality Alert Thursday for
Southern Maryland.

A Code Orange Air Quality Alert means that air pollution
concentrations within the region may become unhealthy for
sensitive groups. Sensitive groups include children, people
suffering from asthma, heart disease or other lung diseases and
the elderly. The effects of air pollution can be minimized by
avoiding strenuous activity or exercise outdoors.

For more information on ground-level ozone
and fine particles visit the web site
mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx
Moonrise
11:03 PM
Moonset
07:58 AM
Sunrise
05:46 AM
Moon Phase
Waning gibbous
Sunset
08:33 PM

Hourly Forecast

Wed, 08:00 PM

Mostly Clear
Winds: 12 mph S
87°

Wed, 09:00 PM

Mostly Clear
Winds: 10 mph S
86°

Wed, 10:00 PM

Mostly Clear
Winds: 10 mph S
85°

Wed, 11:00 PM

Mostly Clear
Winds: 10 mph S
83°

Thu, 12:00 AM

Mostly Clear
Winds: 9 mph S
83°

Thu, 01:00 AM

Mostly Clear
Winds: 8 mph S
83°

Thu, 02:00 AM

Mostly Clear
Winds: 8 mph S
82°

Thu, 03:00 AM

Mostly Clear
Winds: 8 mph SW
82°

Thu, 04:00 AM

Mostly Clear
Winds: 7 mph SW
81°

Thu, 05:00 AM

Mostly Clear
Winds: 7 mph SW
79°

Thu, 06:00 AM

Sunny
Winds: 7 mph SW
79°

Thu, 07:00 AM

Sunny
Winds: 6 mph SW
79°

Thu, 08:00 AM

Sunny
Winds: 5 mph SW
78°

Thu, 09:00 AM

Sunny
Winds: 5 mph SW
80°

Thu, 10:00 AM

Sunny
Winds: 3 mph SW
82°

Thu, 11:00 AM

Sunny
Winds: 3 mph SW
83°

Thu, 12:00 PM

Sunny
Winds: 3 mph S
85°

Thu, 01:00 PM

Sunny
Winds: 5 mph S
86°

Thu, 02:00 PM

Sunny
Winds: 5 mph S
88°

Thu, 03:00 PM

Sunny
Winds: 6 mph S
90°

Thu, 04:00 PM

Sunny
Winds: 6 mph SE
90°

Thu, 05:00 PM

Sunny
Winds: 7 mph SE
90°

Thu, 06:00 PM

Clear
Winds: 7 mph SE
90°

Thu, 07:00 PM

Clear
Winds: 8 mph SE
91°

Tonight

Mostly Clear
78°
Winds: 7 to 12 mph S
Mostly clear, with a low around 78. South wind 7 to 12 mph.

Thursday

Sunny
91°
Winds: 3 to 7 mph SW
Sunny, with a high near 91. Heat index values as high as 101. Southwest wind 3 to 7 mph.

Thursday Night

Clear
81°
Winds: 8 mph S
Clear, with a low around 81. Heat index values as high as 101. South wind around 8 mph.

Friday

Sunny
92°
Winds: 6 mph SW
Sunny, with a high near 92. Heat index values as high as 101. Southwest wind around 6 mph.

Friday Night

Mostly Clear
81°
Winds: 3 to 7 mph SW
Mostly clear, with a low around 81. Southwest wind 3 to 7 mph.

Independence Day

Sunny then Chance Showers And Thunderstorms
91°
Winds: 2 to 7 mph W
A chance of showers and thunderstorms after 2pm. Sunny, with a high near 91. Chance of precipitation is 30%.

Saturday Night

Chance Showers And Thunderstorms
78°
Winds: 2 to 7 mph SW
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 78. Chance of precipitation is 40%.

Sunday

Mostly Sunny then Chance Showers And Thunderstorms
91°
Winds: 2 to 7 mph S
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 40%.

Sunday Night

Chance Showers And Thunderstorms
77°
Winds: 3 to 7 mph SE
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 77. Chance of precipitation is 40%.

Monday

Partly Sunny then Chance Showers And Thunderstorms
89°
Winds: 6 mph NW
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 40%.

Monday Night

Chance Showers And Thunderstorms
76°
Winds: 7 mph NE
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 40%.

Tuesday

Slight Chance Rain Showers then Chance Showers And Thunderstorms
85°
Winds: 8 mph NE
A slight chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.

Tuesday Night

Chance Showers And Thunderstorms
74°
Winds: 5 to 8 mph E
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 40%.

Wednesday

Chance Showers And Thunderstorms
85°
Winds: 7 mph NE
A slight chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 85.

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. An area of high pressure will build near and south of the Mid- Atlantic through the week. A pop up shower or thunderstorm is possible late this afternoon along the bay breeze, though most of the area remains dry until Friday. The chance of strong thunderstorms increases Friday into the weekend, with severe thunderstorms possible. Southerly channeling might require additional Small Craft Advisories for Thursday afternoon to evening.

Tidal Potomac from Key Bridge to Indian Head

TONIGHT
S winds 5 kt Waves less than 1 ft Isolated showers and tstms this evening
THU
W winds around 5 kt Waves 1 ft
THU NIGHT
SW winds around 5 kt Waves 1 ft
FRI
W winds around 5 kt Waves 1 ft
FRI NIGHT
W winds around 5 kt Waves 1 ft
SAT
W winds around 5 kt Waves 1 ft A chance of showers and tstms
SAT NIGHT
W winds around 5 kt Waves 1 ft A chance of showers and tstms
SUN
S winds around 5 kt Waves 1 ft Showers likely with a chance of tstms through the night A chance of showers and tstms after midnight
MON
N winds around 5 kt Waves 1 ft A chance of showers and tstms
Reporting time 07:57 PM EDT Wed Jul 1 2026

Tidal Potomac from Indian Head to Cobb Island

TONIGHT
S winds 5 to 10 kt Waves 1 ft
THU
SW winds around 5 kt Waves 1 ft
THU NIGHT
SW winds around 5 kt Waves 1 ft
FRI
W winds around 5 kt Waves 1 ft
FRI NIGHT
W winds around 5 kt Waves 1 ft
SAT
W winds around 5 kt Waves 1 ft A chance of showers and tstms
SAT NIGHT
W winds around 5 kt Waves 1 ft A chance of showers and tstms
SUN
S winds around 5 kt Waves 1 ft or less A chance of showers and tstms
MON
NE winds around 5 kt Waves 1 ft A chance of showers and tstms
Reporting time 07:57 PM EDT Wed Jul 1 2026

Tidal Potomac from Cobb Island to Smith Point

SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY
Reporting time 07:57 PM EDT Wed Jul 1 2026

Chesapeake Bay north of Pooles Island

TONIGHT
SW winds 5 to 10 kt Gusts up to 20 kt until early morning Waves 1 ft Isolated showers and tstms this evening
THU
SW winds 5 to 10 kt Waves 1 ft
THU NIGHT
SW winds 5 to 10 kt Gusts up to 20 kt in the evening Waves 1 ft
FRI
W winds 5 to 10 kt Waves 1 ft
FRI NIGHT
W winds 5 to 10 kt Waves 1 ft
SAT
W winds 5 to 10 kt Waves 1 ft A chance of showers and tstms
SAT NIGHT
NW winds 5 to 10 kt Waves 1 ft A chance of showers and tstms
SUN
SE winds around 5 kt Waves 1 ft or less Showers likely with a chance of tstms
MON
NE winds around 5 kt Waves 1 ft A chance of showers
Reporting time 07:57 PM EDT Wed Jul 1 2026

Chesapeake Bay from Pooles Island to Sandy Point

SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY
Reporting time 07:57 PM EDT Wed Jul 1 2026

Patapsco River including Baltimore Harbor

SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY
Reporting time 07:57 PM EDT Wed Jul 1 2026

Chester River to Queenstown MD

SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY
Reporting time 07:57 PM EDT Wed Jul 1 2026

Chesapeake Bay from Sandy Point to North Beach

SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY
Reporting time 07:57 PM EDT Wed Jul 1 2026

Eastern Bay

SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY
Reporting time 07:57 PM EDT Wed Jul 1 2026

Chesapeake Bay from North Beach to Drum Point

SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY
Reporting time 07:57 PM EDT Wed Jul 1 2026

Choptank River to Cambridge MD and the Little Choptank River

SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY
Reporting time 07:57 PM EDT Wed Jul 1 2026

Patuxent River to Broomes Island MD

SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY
Reporting time 07:57 PM EDT Wed Jul 1 2026

Chesapeake Bay from Drum Point to Smith Point

SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY
Reporting time 07:57 PM EDT Wed Jul 1 2026

Tangier Sound and the inland waters surrounding Bloodsworth Island

SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY
Reporting time 07:57 PM EDT Wed Jul 1 2026
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