Annapolis MD
09/20/2026 11:00 PM
76°F
TEMPERATURE
Winds 2 mph NW
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms before 2am. Mostly cloudy, with a low around 67. North wind 2 to 9 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Alerts

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Coastal Flood Advisory issued September 20 at 8:03PM EDT until September 21 at 6:00AM EDT by NWS Baltimore MD/Washington DC
NWS Baltimore MD/Washington DC
Category Certainty Severity
Met Likely Minor
Status Urgency Category
Actual Expected Met
Effective Ends Expires
09/20/2026 08:03 PM 09/21/2026 06:00 AM 09/21/2026 04:15 AM
* WHAT...Up to one half foot of inundation above ground level in
low lying areas due to tidal flooding.

* WHERE...Shoreline in Anne Arundel County.

* WHEN...Until 6 AM EDT Monday, especially around the time of
high tide.

* IMPACTS...At 2.6 feet, water may begin to pond in the parking
lot at Annapolis City Dock, and surround the Alex Haley
Memorial.

* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
2:07 AM.
                                            
Moonrise
05:04 PM
Moonset
01:24 AM
Sunrise
06:51 AM
Moon Phase
Waxing gibbous
Sunset
07:06 PM

Hourly Forecast

Sun, 11:00 PM

Scattered Showers And Thunderstorms
Winds: 2 mph NW
76°

Mon, 12:00 AM

Scattered Rain Showers
Winds: 2 mph NW
75°

Mon, 01:00 AM

Isolated Rain Showers
Winds: 3 mph NW
74°

Mon, 02:00 AM

Mostly Cloudy
Winds: 6 mph N
74°

Mon, 03:00 AM

Mostly Cloudy
Winds: 7 mph N
72°

Mon, 04:00 AM

Mostly Cloudy
Winds: 8 mph N
70°

Mon, 05:00 AM

Mostly Cloudy
Winds: 9 mph N
69°

Mon, 06:00 AM

Partly Sunny
Winds: 9 mph N
69°

Mon, 07:00 AM

Mostly Cloudy
Winds: 9 mph N
67°

Mon, 08:00 AM

Mostly Cloudy
Winds: 9 mph NE
69°

Mon, 09:00 AM

Mostly Cloudy
Winds: 10 mph NE
70°

Mon, 10:00 AM

Mostly Cloudy
Winds: 10 mph NE
73°

Mon, 11:00 AM

Mostly Cloudy
Winds: 10 mph NE
73°

Mon, 12:00 PM

Slight Chance Rain Showers
Winds: 9 mph NE
75°

Mon, 01:00 PM

Slight Chance Rain Showers
Winds: 9 mph NE
75°

Mon, 02:00 PM

Mostly Cloudy
Winds: 9 mph NE
75°

Mon, 03:00 PM

Chance Rain Showers
Winds: 9 mph NE
74°

Mon, 04:00 PM

Chance Rain Showers
Winds: 10 mph NE
74°

Mon, 05:00 PM

Chance Rain Showers
Winds: 9 mph NE
73°

Mon, 06:00 PM

Chance Rain Showers
Winds: 9 mph NE
72°

Mon, 07:00 PM

Chance Rain Showers
Winds: 9 mph NE
71°

Mon, 08:00 PM

Chance Rain Showers
Winds: 10 mph NE
69°

Mon, 09:00 PM

Chance Rain Showers
Winds: 9 mph NE
67°

Mon, 10:00 PM

Chance Rain Showers
Winds: 9 mph E
66°
Winds: 2 to 9 mph N
Scattered showers and thunderstorms before 2am. Mostly cloudy, with a low around 67. North wind 2 to 9 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Winds: 10 mph NE
A chance of rain showers after noon. Mostly cloudy, with a high near 75. Northeast wind around 10 mph. Chance of precipitation is 40%.
Winds: 9 to 13 mph NE
Rain showers likely before 2am, then showers and thunderstorms likely. Cloudy, with a low around 61. Northeast wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Winds: 13 to 17 mph NE
Rain showers before 8am, then showers and thunderstorms. Cloudy, with a high near 71. Northeast wind 13 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Winds: 17 mph NE
Rain showers. Cloudy, with a low around 59. Northeast wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.
Winds: 17 mph NE
Rain showers likely. Cloudy, with a high near 70. Chance of precipitation is 60%.
Winds: 17 mph NE
A chance of rain showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Winds: 17 mph NE
A chance of rain showers. Mostly cloudy, with a high near 69. Chance of precipitation is 30%.
Winds: 12 to 16 mph NE
A slight chance of rain showers before 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.
Winds: 16 mph N
A slight chance of rain showers after 8am. Partly sunny, with a high near 71. Chance of precipitation is 20%.
Winds: 12 to 15 mph N
A slight chance of rain showers. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.
Winds: 15 mph N
A slight chance of rain showers. Mostly sunny, with a high near 73. Chance of precipitation is 20%.
Winds: 7 to 12 mph N
A slight chance of rain showers before 8pm. Mostly cloudy, with a low around 58. Chance of precipitation is 20%.
Winds: 9 to 13 mph N
A slight chance of rain showers between 8am and 2pm. Partly sunny, with a high near 74.

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 cold front will slowly drop southward across the area through Monday. A strong area of high pressure will build to our north Monday and remain in place through much of the week, leading to a prolonged period of onshore flow. Several waves of low pressure may track along the stalled front to our south during this time. Small Craft Advisories will likely be needed for much of the Monday night through Thursday time period, and a few low-end Gale gusts can't be ruled out on Tuesday or Wednesday.

REST OF TONIGHT
N winds 5 kt Waves less than 1 ft Isolated showers
MON
NE winds 5 to 10 kt Waves 1 ft A chance of showers
MON NIGHT
NE winds 5 to 10 kt Waves 1 ft Showers
TUE
NE winds 10 to 15 kt Gusts up to 20 kt
TUE NIGHT
NE winds 10 to 15 kt with gusts to 25 kt Waves 1 ft Showers likely
WED
NE winds 10 kt with gusts to 25 kt Waves 1 ft A chance of showers
WED NIGHT
NE winds 10 to 15 kt with gusts to 25 kt Waves 1 ft A chance of showers
THU
NE winds 10 to 15 kt Waves 1 ft A chance of showers through the day
FRI
N winds 10 to 15 kt Waves 1 ft
Reporting time 10:58 PM EDT Sun Sep 20 2026
REST OF TONIGHT
NW winds 5 kt
MON
NE winds 5 to 10 kt Waves 1 ft A chance of showers
MON NIGHT
NE winds 5 to 10 kt Waves 1 ft Showers
TUE
NE winds 10 to 15 kt Gusts up to 25 kt in the afternoon Waves 1 to 2 ft Showers with a chance of tstms
TUE NIGHT
NE winds 15 to 20 kt with gusts to 25 kt Waves 2 ft Showers likely
WED
NE winds 15 to 20 kt with gusts to 25 kt Waves 2 ft Showers likely
WED NIGHT
NE winds 15 to 20 kt with gusts to 25 kt Waves 2 ft A chance of showers
THU
N winds 10 to 15 kt Waves 1 to 2 ft A chance of showers through the day
FRI
N winds 10 to 15 kt Waves 1 ft
Reporting time 10:58 PM EDT Sun Sep 20 2026
REST OF TONIGHT
SW winds 5 to 10 kt
MON
NE winds 5 to 10 kt Waves 2 ft
MON NIGHT
E winds 10 to 15 kt with gusts to 20 kt Waves 2 ft Showers likely
TUE
NE winds 15 to 20 kt with gusts to 25 kt Waves 3 ft Showers with a chance of tstms
TUE NIGHT
NE winds 20 to 25 kt with gusts to 30 kt Waves 4 ft Showers likely
WED
NE winds 20 to 25 kt with gusts to 30 kt Waves 4 ft Showers likely
WED NIGHT
NE winds 20 to 25 kt with gusts to 30 kt Waves 5 ft A chance of showers
THU
NE winds 20 to 25 kt Waves 4 ft A chance of showers
FRI
N winds 15 to 20 kt Waves 3 ft
Reporting time 10:58 PM EDT Sun Sep 20 2026
REST OF TONIGHT
W winds 5 kt
MON
NE winds 10 to 15 kt Waves 1 ft A chance of showers
MON NIGHT
NE winds 15 to 20 kt Gusts up to 25 kt late Waves 1 to 2 ft Showers likely
TUE
NE winds 15 to 20 kt with gusts to 25 kt Waves 2 ft Showers
TUE NIGHT
NE winds 20 to 25 kt Waves 2 ft A chance of showers
WED
NE winds 15 to 20 kt with gusts to 25 kt Waves 2 ft A chance of showers
WED NIGHT
NE winds 20 to 25 kt with gusts to 30 kt Waves 2 ft
THU
NE winds 15 to 20 kt Waves 2 ft
FRI
N winds 15 to 20 kt Waves 1 to 2 ft
Reporting time 10:58 PM EDT Sun Sep 20 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EDT MONDAY THROUGH MONDAY MORNING
Reporting time 10:58 PM EDT Sun Sep 20 2026
REST OF TONIGHT
W winds 5 kt
MON
NE winds 10 kt Waves 1 ft A chance of showers
MON NIGHT
NE winds 10 to 15 kt with gusts to 20 kt Waves 1 to 2 ft Showers likely
TUE
NE winds 15 to 20 kt with gusts to 25 kt Waves 2 ft Showers
TUE NIGHT
NE winds 15 to 20 kt with gusts to 25 kt Waves 2 ft Showers likely
WED
NE winds 15 to 20 kt with gusts to 25 kt Waves 2 ft A chance of showers
WED NIGHT
NE winds 15 to 20 kt with gusts to 25 kt Waves 2 ft
THU
NE winds 10 to 15 kt Waves 1 to 2 ft
FRI
N winds 10 to 15 kt Waves 1 ft
Reporting time 10:58 PM EDT Sun Sep 20 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EDT MONDAY THROUGH MONDAY MORNING
Reporting time 10:58 PM EDT Sun Sep 20 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EDT MONDAY THROUGH MONDAY MORNING
Reporting time 10:58 PM EDT Sun Sep 20 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EDT MONDAY THROUGH MONDAY MORNING
Reporting time 10:58 PM EDT Sun Sep 20 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EDT MONDAY THROUGH MONDAY MORNING
Reporting time 10:58 PM EDT Sun Sep 20 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EDT MONDAY THROUGH MONDAY MORNING
Reporting time 10:58 PM EDT Sun Sep 20 2026
REST OF TONIGHT
W winds 5 kt
MON
NE winds 10 kt Waves 1 ft
MON NIGHT
NE winds 5 to 10 kt Waves 1 ft Showers likely
TUE
NE winds 15 to 20 kt with gusts to 25 kt Waves 1 ft Showers with a chance of tstms
TUE NIGHT
NE winds 15 to 20 kt with gusts to 25 kt Waves 1 ft Showers likely
WED
NE winds 15 to 20 kt with gusts to 30 kt Waves 1 ft Showers likely
WED NIGHT
NE winds 15 to 20 kt with gusts to 30 kt Waves 1 ft A chance of showers
THU
NE winds 15 to 20 kt Waves 1 ft A chance of showers in the morning
FRI
N winds 15 to 20 kt Waves 1 ft
Reporting time 10:58 PM EDT Sun Sep 20 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH MONDAY MORNING
Reporting time 10:58 PM EDT Sun Sep 20 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH MONDAY MORNING
Reporting time 10:58 PM EDT Sun Sep 20 2026
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