Tall Timbers, MD
07/18/2026 05:00 PM
88°F
TEMPERATURE
Winds 16 mph SW
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a high near 90. Southwest wind around 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.

Alerts

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

Heat Advisory issued July 18 at 7:50AM 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 07:50 AM 07/18/2026 07:00 PM 07/18/2026 07:00 PM
* 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
05:57 AM
Moon Phase
Waxing crescent
Sunset
08:27 PM

Hourly Forecast

Sat, 05:00 PM

Chance Showers And Thunderstorms
Winds: 16 mph SW
88°

Sat, 06:00 PM

Scattered Showers And Thunderstorms
Winds: 15 mph SW
87°

Sat, 07:00 PM

Scattered Showers And Thunderstorms
Winds: 15 mph SW
85°

Sat, 08:00 PM

Chance Showers And Thunderstorms
Winds: 12 mph S
84°

Sat, 09:00 PM

Chance Showers And Thunderstorms
Winds: 12 mph SW
84°

Sat, 10:00 PM

Chance Showers And Thunderstorms
Winds: 12 mph SW
83°

Sat, 11:00 PM

Chance Showers And Thunderstorms
Winds: 12 mph SW
83°

Sun, 12:00 AM

Chance Showers And Thunderstorms
Winds: 12 mph SW
82°

Sun, 01:00 AM

Mostly Cloudy
Winds: 12 mph SW
82°

Sun, 02:00 AM

Mostly Cloudy
Winds: 10 mph W
82°

Sun, 03:00 AM

Mostly Cloudy
Winds: 10 mph SW
81°

Sun, 04:00 AM

Mostly Cloudy
Winds: 9 mph W
81°

Sun, 05:00 AM

Mostly Cloudy
Winds: 9 mph W
81°

Sun, 06:00 AM

Partly Sunny
Winds: 8 mph W
80°

Sun, 07:00 AM

Partly Sunny
Winds: 8 mph W
80°

Sun, 08:00 AM

Mostly Sunny
Winds: 8 mph W
79°

Sun, 09:00 AM

Mostly Sunny
Winds: 8 mph NW
78°

Sun, 10:00 AM

Mostly Sunny
Winds: 8 mph NW
80°

Sun, 11:00 AM

Mostly Sunny
Winds: 8 mph NW
79°

Sun, 12:00 PM

Mostly Sunny
Winds: 8 mph NW
79°

Sun, 01:00 PM

Mostly Sunny
Winds: 8 mph NW
80°

Sun, 02:00 PM

Slight Chance Showers And Thunderstorms
Winds: 9 mph NW
80°

Sun, 03:00 PM

Mostly Sunny
Winds: 8 mph NW
81°

Sun, 04:00 PM

Sunny
Winds: 8 mph N
81°
Winds: 16 mph SW
A chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a high near 90. Southwest wind around 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: 9 to 15 mph SW
A chance of showers and thunderstorms before 11pm, then a chance of showers and thunderstorms between 11pm and 1am. Some of the storms could be severe. Mostly cloudy, with a low around 78. Southwest wind 9 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: 9 mph NW
A slight chance of showers and thunderstorms between 2pm and 3pm. Mostly sunny, with a high near 83. Northwest wind around 9 mph. Chance of precipitation is 20%.
Winds: 5 to 8 mph NE
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 75. Northeast wind 5 to 8 mph. Chance of precipitation is 20%.
Winds: 6 to 10 mph E
A slight chance of rain showers after 2pm. Mostly sunny, with a high near 81. East wind 6 to 10 mph. Chance of precipitation is 20%.
Winds: 7 to 12 mph SE
A slight chance of rain showers before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Winds: 7 to 16 mph S
Showers and thunderstorms. Mostly cloudy, with a high near 84. Chance of precipitation is 80%.
Winds: 17 mph SW
Showers and thunderstorms. Mostly cloudy, with a low around 76. Chance of precipitation is 80%.
Winds: 12 to 16 mph SW
Rain showers likely before 8am, then showers and thunderstorms likely. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Winds: 10 mph NW
Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Chance of precipitation is 70%.
Winds: 10 mph N
A slight chance of rain showers. Mostly sunny, with a high near 78. Chance of precipitation is 20%.
Winds: 7 mph N
A slight chance of rain showers before 2am. Partly cloudy, with a low around 71. Chance of precipitation is 20%.
Winds: 7 mph NE
Sunny, with a high near 81.
Winds: 3 to 7 mph SE
Partly cloudy, with a low around 72.

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 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 through this evening.

SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
TORNADO WATCH 495 IN EFFECT UNTIL 9 PM EDT THIS EVENING
Reporting time 04:58 PM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
SEVERE THUNDERSTORM WATCH 496 IN EFFECT UNTIL 9 PM EDT THIS EVENING
Reporting time 04:58 PM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
SEVERE THUNDERSTORM WATCH 496 IN EFFECT UNTIL 9 PM EDT THIS EVENING
Reporting time 04:58 PM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
TORNADO WATCH 495 IN EFFECT UNTIL 9 PM EDT THIS EVENING
Reporting time 04:58 PM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
TORNADO WATCH 495 IN EFFECT UNTIL 9 PM EDT THIS EVENING
Reporting time 04:58 PM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
TORNADO WATCH 495 IN EFFECT UNTIL 9 PM EDT THIS EVENING
Reporting time 04:58 PM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
TORNADO WATCH 495 IN EFFECT UNTIL 9 PM EDT THIS EVENING
Reporting time 04:58 PM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
TORNADO WATCH 495 IN EFFECT UNTIL 9 PM EDT THIS EVENING
Reporting time 04:58 PM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
TORNADO WATCH 495 IN EFFECT UNTIL 9 PM EDT THIS EVENING
Reporting time 04:58 PM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
TORNADO WATCH 495 IN EFFECT UNTIL 9 PM EDT THIS EVENING
Reporting time 04:58 PM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
TORNADO WATCH 495 IN EFFECT UNTIL 9 PM EDT THIS EVENING
Reporting time 04:58 PM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
TORNADO WATCH 495 IN EFFECT UNTIL 9 PM EDT THIS EVENING
Reporting time 04:58 PM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
SEVERE THUNDERSTORM WATCH 496 IN EFFECT UNTIL 9 PM EDT THIS EVENING
Reporting time 04:58 PM EDT Sat Jul 18 2026
SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
SEVERE THUNDERSTORM WATCH 496 IN EFFECT UNTIL 9 PM EDT THIS EVENING
Reporting time 04:58 PM EDT Sat Jul 18 2026
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