Tall Timbers, MD
07/18/2026 05:00 AM
77°F
TEMPERATURE
Winds 6 mph S
Smoke
Smoke. Mostly cloudy, with a low around 77. South wind around 6 mph.

Alerts

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

Heat Advisory issued July 18 at 2:16AM EDT until July 18 at 7:00PM 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
07/18/2026 02:16 AM 07/18/2026 07:00 PM 07/18/2026 10:30 AM
* WHAT...Heat index values around 105 expected.

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

* WHEN...From 11 AM this morning to 7 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
                                            
Moonrise
11:44 AM
Moonset
12:03 AM
Sunrise
05:56 AM
Moon Phase
Waxing crescent
Sunset
08:27 PM

Hourly Forecast

Sat, 05:00 AM

Smoke
Winds: 6 mph S
77°

Sat, 06:00 AM

Smoke
Winds: 7 mph S
77°

Sat, 07:00 AM

Smoke
Winds: 7 mph S
79°

Sat, 08:00 AM

Areas Of Smoke
Winds: 8 mph S
80°

Sat, 09:00 AM

Areas Of Smoke
Winds: 8 mph S
82°

Sat, 10:00 AM

Patchy Smoke
Winds: 8 mph S
84°

Sat, 11:00 AM

Patchy Smoke
Winds: 9 mph S
86°

Sat, 12:00 PM

Patchy Smoke
Winds: 10 mph S
88°

Sat, 01:00 PM

Partly Sunny
Winds: 12 mph S
89°

Sat, 02:00 PM

Isolated Showers And Thunderstorms
Winds: 14 mph S
90°

Sat, 03:00 PM

Isolated Showers And Thunderstorms
Winds: 14 mph SW
90°

Sat, 04:00 PM

Scattered Showers And Thunderstorms
Winds: 16 mph SW
90°

Sat, 05:00 PM

Chance Showers And Thunderstorms
Winds: 16 mph SW
89°

Sat, 06:00 PM

Scattered Showers And Thunderstorms
Winds: 15 mph SW
88°

Sat, 07:00 PM

Scattered Showers And Thunderstorms
Winds: 15 mph SW
87°

Sat, 08:00 PM

Scattered Showers And Thunderstorms
Winds: 14 mph SW
85°

Sat, 09:00 PM

Scattered Showers And Thunderstorms
Winds: 13 mph SW
84°

Sat, 10:00 PM

Scattered Showers And Thunderstorms
Winds: 12 mph SW
84°

Sat, 11:00 PM

Scattered Showers And Thunderstorms
Winds: 12 mph SW
83°

Sun, 12:00 AM

Scattered Showers And Thunderstorms
Winds: 10 mph SW
82°

Sun, 01:00 AM

Isolated Showers And Thunderstorms
Winds: 10 mph W
82°

Sun, 02:00 AM

Partly Cloudy
Winds: 10 mph SW
81°

Sun, 03:00 AM

Partly Cloudy
Winds: 9 mph W
81°

Sun, 04:00 AM

Partly Cloudy
Winds: 8 mph W
81°
Winds: 6 mph S
Smoke. Mostly cloudy, with a low around 77. South wind around 6 mph.
Winds: 7 to 16 mph S
Smoke before 1pm, then scattered showers and thunderstorms between 2pm and 5pm, then a chance of showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 90. Heat index values as high as 102. South wind 7 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Winds: 8 to 15 mph SW
Scattered showers and thunderstorms before 2am. Some of the storms could be severe. Mostly cloudy, with a low around 79. Southwest wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Winds: 8 mph NW
Mostly sunny, with a high near 84. Northwest wind around 8 mph.
Winds: 5 to 8 mph NE
Mostly clear, with a low around 75. Northeast wind 5 to 8 mph.
Winds: 6 to 10 mph E
A chance of rain showers between 2pm and 5pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
Winds: 6 to 12 mph SE
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Chance of precipitation is 50%.
Winds: 6 to 16 mph S
A chance of showers and thunderstorms before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.
Winds: 16 mph SW
Showers and thunderstorms likely. Mostly cloudy, with a low around 76. Chance of precipitation is 70%.
Winds: 14 mph SW
Showers and thunderstorms likely. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.
Winds: 10 mph NW
Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Winds: 9 mph N
A slight chance of rain showers. Mostly sunny, with a high near 80. Chance of precipitation is 20%.
Winds: 6 mph N
A slight chance of rain showers. Mostly clear, with a low around 71. Chance of precipitation is 20%.
Winds: 6 mph NE
A slight chance of rain showers before 8am, then a slight chance of showers and thunderstorms. Sunny, with a high near 82.

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 warm front will lift north of the area this morning. A strong cold front will drop through the region tonight into Sunday. High pressure will build north of the area Monday before the next cold front approaches by midweek. Small Craft Advisories may be needed for portions of the waters Sunday, and again Monday night through Wednesday. Special Marine Warnings will likely be needed this afternoon and evening.

SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING
Reporting time 04:58 AM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING
Reporting time 04:58 AM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH LATE TONIGHT
Reporting time 04:58 AM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING
Reporting time 04:58 AM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING
Reporting time 04:58 AM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING
Reporting time 04:58 AM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING
Reporting time 04:58 AM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING
Reporting time 04:58 AM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING
Reporting time 04:58 AM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING
Reporting time 04:58 AM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING
Reporting time 04:58 AM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING
Reporting time 04:58 AM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH LATE TONIGHT
Reporting time 04:58 AM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH LATE TONIGHT
Reporting time 04:58 AM EDT Sat Jul 18 2026
Oilrig
NWS
Buoy
Fixed Station
USGS
Ship
Other