Tall Timbers, MD
07/04/2026 02:00 AM
85°F
TEMPERATURE
Winds 5 mph W
Mostly Clear
Mostly clear, with a low around 81. West wind around 5 mph.

Alerts

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

Extreme Heat Warning

Severe
Extreme Heat Warning issued July 4 at 12:47AM EDT until July 4 at 9:00PM 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
07/04/2026 12:47 AM 07/04/2026 09:00 PM 07/04/2026 09:00 AM 
* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values 110 to 115 expected.

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

* WHEN...From 10 AM this morning to 9 PM EDT this evening.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events. Hot temperatures and high
humidity may cause heat illnesses.

* ADDITIONAL DETAILS...Early morning low temperatures in the 70s and
80s combined with oppressive humidity will result in little to no
overnight relief. Prolonged excessive heat may impact power,
water, and transportation systems. Heat index values around 100 to
104 are possible again Sunday afternoon.
Moonrise
11:59 PM
Moonset
10:04 AM
Sunrise
05:47 AM
Moon Phase
Waning gibbous
Sunset
08:33 PM

Hourly Forecast

Sat, 02:00 AM

Mostly Clear
Winds: 5 mph W
85°

Sat, 03:00 AM

Mostly Clear
Winds: 5 mph SW
84°

Sat, 04:00 AM

Mostly Clear
Winds: 3 mph W
82°

Sat, 05:00 AM

Mostly Clear
Winds: 3 mph W
82°

Sat, 06:00 AM

Sunny
Winds: 3 mph W
81°

Sat, 07:00 AM

Sunny
Winds: 3 mph NW
81°

Sat, 08:00 AM

Sunny
Winds: 2 mph W
82°

Sat, 09:00 AM

Sunny
Winds: 1 mph NW
85°

Sat, 10:00 AM

Sunny
Winds: 2 mph NW
86°

Sat, 11:00 AM

Sunny
Winds: 2 mph W
87°

Sat, 12:00 PM

Mostly Sunny
Winds: 2 mph W
87°

Sat, 01:00 PM

Sunny
Winds: 3 mph SW
90°

Sat, 02:00 PM

Sunny
Winds: 5 mph S
90°

Sat, 03:00 PM

Sunny
Winds: 6 mph S
92°

Sat, 04:00 PM

Sunny
Winds: 7 mph S
92°

Sat, 05:00 PM

Scattered Showers And Thunderstorms
Winds: 7 mph S
92°

Sat, 06:00 PM

Scattered Showers And Thunderstorms
Winds: 8 mph N
91°

Sat, 07:00 PM

Scattered Showers And Thunderstorms
Winds: 7 mph N
90°

Sat, 08:00 PM

Scattered Showers And Thunderstorms
Winds: 7 mph N
86°

Sat, 09:00 PM

Scattered Showers And Thunderstorms
Winds: 7 mph S
85°

Sat, 10:00 PM

Isolated Showers And Thunderstorms
Winds: 6 mph S
83°

Sat, 11:00 PM

Scattered Showers And Thunderstorms
Winds: 6 mph SW
82°

Sun, 12:00 AM

Mostly Cloudy
Winds: 5 mph W
82°

Sun, 01:00 AM

Isolated Showers And Thunderstorms
Winds: 3 mph SW
81°

Overnight

Mostly Clear
81°
Winds: 5 mph W
Mostly clear, with a low around 81. West wind around 5 mph.

Independence Day

Sunny then Scattered Showers And Thunderstorms
92°
Winds: 1 to 7 mph SW
Scattered showers and thunderstorms after 5pm. Sunny, with a high near 92. Heat index values as high as 103. Southwest wind 1 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Saturday Night

Scattered Showers And Thunderstorms
78°
Winds: 2 to 8 mph SW
Scattered showers and thunderstorms before 3am. Mostly cloudy, with a low around 78. Heat index values as high as 102. Southwest wind 2 to 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Sunday

Sunny
89°
Winds: 2 to 10 mph SE
Sunny, with a high near 89. Southeast wind 2 to 10 mph. New rainfall amounts less than a tenth of an inch possible.

Sunday Night

Chance Showers And Thunderstorms
77°
Winds: 5 to 12 mph E
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 77. East wind 5 to 12 mph. Chance of precipitation is 50%.

Monday

Showers And Thunderstorms Likely
83°
Winds: 3 to 8 mph E
A slight chance of rain showers before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.

Monday Night

Showers And Thunderstorms Likely
75°
Winds: 5 to 8 mph SE
Showers and thunderstorms likely. Mostly cloudy, with a low around 75. Chance of precipitation is 70%.

Tuesday

Chance Rain Showers then Chance Showers And Thunderstorms
81°
Winds: 5 to 9 mph NE
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.

Tuesday Night

Chance Showers And Thunderstorms
73°
Winds: 5 to 9 mph NE
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 50%.

Wednesday

Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
84°
Winds: 6 mph NE
A slight chance of rain showers before 8am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 20%.

Wednesday Night

Slight Chance Showers And Thunderstorms
74°
Winds: 6 mph SE
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 20%.

Thursday

Slight Chance Rain Showers then Chance Showers And Thunderstorms
87°
Winds: 3 to 8 mph S
A slight chance of rain showers before 8am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.

Thursday Night

Chance Showers And Thunderstorms
76°
Winds: 8 mph S
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76. Chance of precipitation is 30%.

Friday

Mostly Sunny then Chance Showers And Thunderstorms
90°
Winds: 8 mph W
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.

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. A broad area of hot high pressure will remain near the Mid-Atlantic through the holiday weekend. The chance for strong thunderstorms increases this weekend into early next week, with Special Marine Warnings possible. A frontal zone will meander nearby on Sunday into Monday, before drifting south of the waters thereafter.

Tidal Potomac from Key Bridge to Indian Head

OVERNIGHT
W winds 5 kt Waves less than 1 ft
SAT
W winds 5 to 10 kt Waves 1 ft Scattered showers and tstms
SAT NIGHT
SW winds around 5 kt Waves 1 ft or less Scattered showers and tstms
SUN
SE winds around 5 kt Waves 1 ft or less A chance of showers and tstms
SUN NIGHT
NE winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
MON
NE winds around 5 kt Waves 1 ft Showers with a chance of tstms
MON NIGHT
E winds around 5 kt Waves 1 ft Showers with a chance of tstms
TUE
NE winds around 5 kt Waves 1 ft A chance of showers A chance of tstms through the night
WED
E winds around 5 kt Waves 1 ft or less
Reporting time 02:28 AM EDT Sat Jul 4 2026

Tidal Potomac from Indian Head to Cobb Island

OVERNIGHT
NW winds 5 kt Waves less than 1 ft
SAT
W winds around 5 kt Waves 1 ft Scattered showers and tstms
SAT NIGHT
S winds around 5 kt Waves 1 ft Scattered showers and tstms
SUN
SE winds around 5 kt Waves 1 ft or less
SUN NIGHT
E winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
MON
NE winds around 5 kt Waves 1 ft Showers with a chance of tstms
MON NIGHT
SE winds around 5 kt Waves 1 ft Showers with a chance of tstms
TUE
NE winds around 5 kt Waves 1 ft A chance of tstms through the night A chance of showers
WED
E winds around 5 kt Waves 1 ft
Reporting time 02:28 AM EDT Sat Jul 4 2026

Tidal Potomac from Cobb Island to Smith Point

OVERNIGHT
W winds 5 kt Waves less than 1 ft
SAT
W winds around 5 kt
SAT NIGHT
N winds 5 to 10 kt
SUN
SE winds 5 to 10 kt Waves 1 ft or less
SUN NIGHT
E winds 10 to 15 kt Waves 2 ft A chance of showers and tstms
MON
E winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
MON NIGHT
SE winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
TUE
NE winds 5 to 10 kt Waves 1 ft A chance of showers A chance of tstms through the night
WED
E winds around 5 kt Waves 1 ft
Reporting time 02:28 AM EDT Sat Jul 4 2026

Chesapeake Bay north of Pooles Island

OVERNIGHT
NW winds 5 kt Waves flat
SAT
NW winds around 5 kt
SAT NIGHT
W winds 5 to 10 kt
SUN
S winds around 5 kt Waves flat A chance of showers and tstms
SUN NIGHT
E winds 5 to 10 kt Waves 1 ft Showers with a chance of tstms
MON
E winds 5 to 10 kt Waves 1 ft Showers with a chance of tstms
MON NIGHT
E winds 5 to 10 kt Waves 1 ft Showers with a chance of tstms
TUE
NE winds 5 to 10 kt Waves 1 ft or less Showers likely in the morning, then a chance of tstms through the night A chance of showers
WED
E winds around 5 kt Waves flat
Reporting time 02:28 AM EDT Sat Jul 4 2026

Chesapeake Bay from Pooles Island to Sandy Point

OVERNIGHT
W winds 5 kt Waves less than 1 ft
SAT
W winds around 5 kt
SAT NIGHT
SW winds 5 to 10 kt Waves 1 ft Scattered showers and tstms
SUN
S winds 5 kt Waves flat A chance of showers and tstms
SUN NIGHT
E winds 5 to 10 kt Waves 1 ft Showers with a chance of tstms
MON
NE winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
MON NIGHT
E winds 5 to 10 kt Waves 1 ft Showers with a chance of tstms
TUE
NE winds 5 to 10 kt Waves 1 ft Showers likely in the morning, then a chance of tstms through the night A chance of showers
WED
E winds 5 kt Waves less than 1 ft
Reporting time 02:28 AM EDT Sat Jul 4 2026

Patapsco River including Baltimore Harbor

OVERNIGHT
W winds 5 kt Waves flat
SAT
W winds around 5 kt
SAT NIGHT
SW winds around 5 kt Waves 1 ft or less Scattered showers and tstms
SUN
SE winds around 5 kt Waves flat A chance of showers and tstms
SUN NIGHT
NE winds 5 to 10 kt Waves 1 ft Showers with a chance of tstms
MON
NE winds 5 to 10 kt Waves 1 ft Showers with a chance of tstms
MON NIGHT
E winds 5 to 10 kt Waves 1 ft Showers with a chance of tstms
TUE
NE winds 5 to 10 kt Waves 1 ft or less Showers likely in the morning, then a chance of tstms through the night A chance of showers
WED
E winds around 5 kt Waves flat
Reporting time 02:28 AM EDT Sat Jul 4 2026

Chester River to Queenstown MD

OVERNIGHT
W winds 5 kt Waves less than 1 ft
SAT
W winds around 5 kt
SAT NIGHT
SW winds 5 to 10 kt Waves 1 ft or less Numerous showers and scattered tstms
SUN
S winds around 5 kt Waves flat A chance of showers and tstms
SUN NIGHT
E winds 5 to 10 kt Waves 1 ft Showers with a chance of tstms
MON
NE winds 5 kt Waves less than 1 ft Showers with a chance of tstms
MON NIGHT
E winds 5 to 10 kt Waves 1 ft Showers with a chance of tstms
TUE
NE winds 5 to 10 kt Waves 1 ft or less Showers likely in the morning, then a chance of tstms through the night A chance of showers
WED
E winds around 5 kt Waves 1 ft or less
Reporting time 02:28 AM EDT Sat Jul 4 2026

Chesapeake Bay from Sandy Point to North Beach

OVERNIGHT
W winds 5 kt Waves less than 1 ft
SAT
W winds around 5 kt
SAT NIGHT
SW winds 5 to 10 kt Waves 1 ft Scattered showers and tstms
SUN
SE winds 5 kt Waves less than 1 ft A chance of showers and tstms
SUN NIGHT
E winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
MON
NE winds 5 to 10 kt Waves 1 ft Showers with a chance of tstms
MON NIGHT
NE winds 5 to 10 kt Waves 1 ft Showers with a chance of tstms
TUE
NE winds 5 to 10 kt Waves 1 ft A chance of showers A chance of tstms through the night
WED
E winds 5 kt Waves less than 1 ft
Reporting time 02:28 AM EDT Sat Jul 4 2026

Eastern Bay

OVERNIGHT
W winds 5 kt Waves less than 1 ft
SAT
W winds around 5 kt
SAT NIGHT
SW winds 5 to 10 kt Waves 1 ft or less Numerous showers and scattered tstms
SUN
S winds around 5 kt Waves flat A chance of showers and tstms
SUN NIGHT
E winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
MON
NE winds 5 kt Waves less than 1 ft Showers with a chance of tstms
MON NIGHT
E winds 5 to 10 kt Waves 1 ft Showers with a chance of tstms
TUE
NE winds 5 to 10 kt Waves 1 ft Showers likely in the morning, then a chance of tstms through the night A chance of showers
WED
E winds around 5 kt Waves 1 ft or less
Reporting time 02:28 AM EDT Sat Jul 4 2026

Chesapeake Bay from North Beach to Drum Point

OVERNIGHT
W winds 5 kt Waves less than 1 ft
SAT
N winds around 5 kt
SAT NIGHT
SW winds 5 to 10 kt Waves 1 ft Scattered showers and tstms
SUN
SE winds 5 to 10 kt Waves 1 ft or less
SUN NIGHT
E winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
MON
E winds 5 to 10 kt Waves 1 ft Showers with a chance of tstms
MON NIGHT
E winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
TUE
NE winds 5 to 10 kt Waves 1 ft A chance of showers A chance of tstms through the night
WED
E winds 5 kt Waves less than 1 ft
Reporting time 02:28 AM EDT Sat Jul 4 2026

Choptank River to Cambridge MD and the Little Choptank River

OVERNIGHT
W winds 5 kt Waves less than 1 ft
SAT
W winds around 5 kt
SAT NIGHT
SW winds 5 to 10 kt Waves 1 ft Scattered showers and tstms
SUN
S winds around 5 kt Waves 1 ft or less A chance of showers and tstms
SUN NIGHT
E winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
MON
E winds 5 kt Waves less than 1 ft Showers with a chance of tstms
MON NIGHT
E winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
TUE
NE winds 5 to 10 kt Waves 1 ft A chance of showers A chance of tstms through the night
WED
E winds 5 kt Waves less than 1 ft
Reporting time 02:28 AM EDT Sat Jul 4 2026

Patuxent River to Broomes Island MD

OVERNIGHT
W winds 5 kt Waves less than 1 ft
SAT
N winds around 5 kt
SAT NIGHT
SW winds 5 to 10 kt Waves 1 ft Scattered showers and tstms
SUN
SE winds 5 to 10 kt Waves 1 ft
SUN NIGHT
E winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
MON
E winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
MON NIGHT
E winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
TUE
NE winds 5 to 10 kt Waves 1 ft A chance of showers A chance of tstms through the night
WED
E winds around 5 kt Waves 1 ft
Reporting time 02:28 AM EDT Sat Jul 4 2026

Chesapeake Bay from Drum Point to Smith Point

OVERNIGHT
SW winds 5 kt Waves less than 1 ft
SAT
W winds around 5 kt
SAT NIGHT
NW winds 10 kt
SUN
SE winds 5 to 10 kt Waves 1 ft
SUN NIGHT
SE winds 10 to 15 kt with gusts to 20 kt Waves 2 ft A chance of showers and tstms
MON
SE winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
MON NIGHT
SE winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
TUE
NE winds 5 to 10 kt Waves 1 to 2 ft A chance of showers A chance of tstms
WED
N winds 5 to 10 kt
Reporting time 02:28 AM EDT Sat Jul 4 2026

Tangier Sound and the inland waters surrounding Bloodsworth Island

OVERNIGHT
SW winds 5 kt Waves less than 1 ft
SAT
SW winds 5 to 10 kt Waves 1 ft
SAT NIGHT
SW winds 5 to 10 kt Waves 1 ft Scattered showers and tstms
SUN
S winds 5 to 10 kt Waves 1 ft or less
SUN NIGHT
SE winds 10 to 15 kt Waves 1 ft A chance of showers and tstms
MON
SE winds 5 to 10 kt Waves 1 ft A chance of showers and tstms
MON NIGHT
S winds 5 to 10 kt Waves 1 ft Showers likely with a chance of tstms
TUE
E winds 5 to 10 kt Waves 1 ft Showers likely in the morning, then a chance of showers and tstms
WED
N winds 5 to 10 kt
Reporting time 02:28 AM EDT Sat Jul 4 2026
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