Tall Timbers, MD
07/04/2026 05:00 PM
91°F
TEMPERATURE
Winds 9 mph NE
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 94. Heat index values as high as 105. Northeast wind around 9 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Alerts

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Extreme Heat Warning issued July 4 at 5:02PM 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 05:02 PM 07/04/2026 09:00 PM 07/04/2026 09:00 PM
* WHAT...Dangerously hot conditions with heat index values of 110 to
115.

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

* WHEN...Until 9 PM EDT this evening.

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

* ADDITIONAL DETAILS...Prolonged excessive heat may impact power,
water, and transportation systems. Heat index values around 100 to
105 are possible again Sunday afternoon.
                                            
Moonrise
12:22 AM
Moonset
11:06 AM
Sunrise
05:48 AM
Moon Phase
Waning gibbous
Sunset
08:33 PM

Hourly Forecast

Sat, 05:00 PM

Scattered Showers And Thunderstorms
Winds: 9 mph NE
91°

Sat, 06:00 PM

Chance Showers And Thunderstorms
Winds: 8 mph N
89°

Sat, 07:00 PM

Chance Showers And Thunderstorms
Winds: 7 mph N
86°

Sat, 08:00 PM

Chance Showers And Thunderstorms
Winds: 7 mph N
85°

Sat, 09:00 PM

Scattered Showers And Thunderstorms
Winds: 7 mph S
85°

Sat, 10:00 PM

Scattered Showers And Thunderstorms
Winds: 6 mph S
83°

Sat, 11:00 PM

Scattered Rain Showers
Winds: 6 mph SW
82°

Sun, 12:00 AM

Slight Chance Rain Showers
Winds: 5 mph W
82°

Sun, 01:00 AM

Slight Chance Rain Showers
Winds: 3 mph SW
81°

Sun, 02:00 AM

Mostly Cloudy
Winds: 3 mph SW
80°

Sun, 03:00 AM

Mostly Cloudy
Winds: 3 mph SW
80°

Sun, 04:00 AM

Partly Cloudy
Winds: 3 mph S
80°

Sun, 05:00 AM

Mostly Clear
Winds: 2 mph S
80°

Sun, 06:00 AM

Sunny
Winds: 2 mph SE
79°

Sun, 07:00 AM

Sunny
Winds: 2 mph SE
78°

Sun, 08:00 AM

Sunny
Winds: 3 mph S
78°

Sun, 09:00 AM

Sunny
Winds: 2 mph S
80°

Sun, 10:00 AM

Sunny
Winds: 3 mph S
83°

Sun, 11:00 AM

Mostly Sunny
Winds: 3 mph SE
83°

Sun, 12:00 PM

Sunny
Winds: 3 mph SE
84°

Sun, 01:00 PM

Sunny
Winds: 5 mph SE
86°

Sun, 02:00 PM

Sunny
Winds: 7 mph SE
86°

Sun, 03:00 PM

Sunny
Winds: 9 mph SE
88°

Sun, 04:00 PM

Sunny
Winds: 10 mph SE
88°
Winds: 9 mph NE
Scattered showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 94. Heat index values as high as 105. Northeast wind around 9 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Winds: 2 to 8 mph SW
A chance of showers and thunderstorms before 10pm, then scattered showers and thunderstorms between 10pm and 2am. Some of the storms could be severe. Mostly cloudy, with a low around 78. Southwest wind 2 to 8 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Winds: 2 to 13 mph SE
Sunny, with a high near 89. Southeast wind 2 to 13 mph.
Winds: 6 to 13 mph E
A chance of showers and thunderstorms between 7pm and 11pm, then a chance of showers and thunderstorms between 11pm and midnight, then a slight chance of showers and thunderstorms between midnight and 2am. Mostly cloudy, with a low around 77. East wind 6 to 13 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Winds: 5 to 8 mph E
Rain showers likely between 7am and 11am, then showers and thunderstorms. Mostly cloudy, with a high near 83. East wind 5 to 8 mph. Chance of precipitation is 80%.
Winds: 5 to 8 mph SE
Showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 80%.
Winds: 8 mph N
A chance of rain showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Winds: 5 to 8 mph N
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Winds: 7 mph NE
Mostly sunny, with a high near 82.
Winds: 6 mph S
Partly cloudy, with a low around 73.
Winds: 3 to 9 mph S
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Winds: 6 to 9 mph S
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77. Chance of precipitation is 30%.
Winds: 5 to 8 mph SW
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
Winds: 5 to 8 mph SW
A chance of showers and thunderstorms before 2am. 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. A broad area of hot high pressure will remain near the Mid-Atlantic through the holiday weekend. The chance for strong thunderstorms remains through early next week, with Special Marine Warnings likely at times. A frontal zone will meander nearby on Sunday into Monday, before drifting south of the waters thereafter.

SEVERE THUNDERSTORM WATCH 457 IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 04:57 PM EDT Sat Jul 4 2026
SEVERE THUNDERSTORM WATCH 457 IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 04:57 PM EDT Sat Jul 4 2026
SEVERE THUNDERSTORM WATCH 457 IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 04:57 PM EDT Sat Jul 4 2026
SEVERE THUNDERSTORM WATCH 457 IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 04:57 PM EDT Sat Jul 4 2026
SEVERE THUNDERSTORM WATCH 457 IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 04:57 PM EDT Sat Jul 4 2026
SEVERE THUNDERSTORM WATCH 457 IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 04:57 PM EDT Sat Jul 4 2026
SEVERE THUNDERSTORM WATCH 457 IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 04:57 PM EDT Sat Jul 4 2026
SEVERE THUNDERSTORM WATCH 457 IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 04:57 PM EDT Sat Jul 4 2026
SEVERE THUNDERSTORM WATCH 457 IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 04:57 PM EDT Sat Jul 4 2026
SEVERE THUNDERSTORM WATCH 457 IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 04:57 PM EDT Sat Jul 4 2026
SEVERE THUNDERSTORM WATCH 457 IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 04:57 PM EDT Sat Jul 4 2026
SEVERE THUNDERSTORM WATCH 457 IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 04:57 PM EDT Sat Jul 4 2026
SEVERE THUNDERSTORM WATCH 457 IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 04:57 PM EDT Sat Jul 4 2026
SEVERE THUNDERSTORM WATCH 457 IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 04:57 PM EDT Sat Jul 4 2026
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