Weather

Annapolis MD

07/18/2026 08:00 AM

79°F

TEMPERATURE

Winds 7 mph SE

Smoke

Smoke and patchy fog before 2pm, then a chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a high near 94. Heat index values as high as 109. South wind 7 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

Alerts

You have (2) alert(s). Tap to see details.

Heat Advisory

Moderate

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.

Air Quality Alert

Unknown

Air Quality Alert issued July 17 at 4:40PM EDT by NWS Baltimore MD/Washington DC
NWS Baltimore MD/Washington DC
Category	Certainty	Severity
Met	Unknown	Unknown
Status	Urgency	Category
Actual	Unknown	Met
Effective	Ends	Expires
07/17/2026 04:40 PM	07/18/2026 08:10 AM	07/19/2026 12:00 AM
The Maryland Department of the Environment has issued a Code ORANGE Air Quality Alert Saturday for the Baltimore City Metro and Annapolis region. Concentrations of fine particulate matter due to wildfire smoke will persist at levels consistent with an Air Quality Index of Unhealthy (Red Alert) to Very Unhealthy (Purple Alert) Friday night into Saturday morning. Air quality begins to improve Saturday afternoon. Code Purple and Code Red Air Quality Alerts mean that air pollution concentrations within the region are unhealthy to very unhealthy for the general population. A Code Orange Air Quality Alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children, people suffering from asthma, heart disease or other lung diseases and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles visit the web site mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx

Moonrise

11:45 AM

Moonset

12:03 AM

Sunrise

05:54 AM

Moon Phase

Waxing crescent

Sunset

08:29 PM

Hourly Forecast

Sat, 08:00 AM

Smoke
Winds: 7 mph SE

79°

Sat, 09:00 AM

Smoke
Winds: 7 mph S

82°

Sat, 10:00 AM

Areas Of Smoke
Winds: 9 mph S

84°

Sat, 11:00 AM

Areas Of Smoke
Winds: 9 mph S

87°

Sat, 12:00 PM

Patchy Smoke
Winds: 10 mph S

91°

Sat, 01:00 PM

Patchy Smoke
Winds: 12 mph S

93°

Sat, 02:00 PM

Scattered Showers And Thunderstorms
Winds: 12 mph S

94°

Sat, 03:00 PM

Chance Showers And Thunderstorms
Winds: 12 mph S

93°

Sat, 04:00 PM

Chance Showers And Thunderstorms
Winds: 12 mph SW

91°

Sat, 05:00 PM

Chance Showers And Thunderstorms
Winds: 10 mph SW

89°

Sat, 06:00 PM

Chance Showers And Thunderstorms
Winds: 10 mph SW

89°

Sat, 07:00 PM

Scattered Showers And Thunderstorms
Winds: 9 mph SW

89°

Sat, 08:00 PM

Scattered Showers And Thunderstorms
Winds: 8 mph SW

84°

Sat, 09:00 PM

Scattered Showers And Thunderstorms
Winds: 7 mph SW

81°

Sat, 10:00 PM

Scattered Showers And Thunderstorms
Winds: 7 mph W

79°

Sat, 11:00 PM

Scattered Showers And Thunderstorms
Winds: 6 mph W

78°

Sun, 12:00 AM

Chance Showers And Thunderstorms
Winds: 6 mph W

78°

Sun, 01:00 AM

Mostly Cloudy
Winds: 6 mph W

78°

Sun, 02:00 AM

Mostly Cloudy
Winds: 6 mph W

78°

Sun, 03:00 AM

Mostly Cloudy
Winds: 6 mph W

78°

Sun, 04:00 AM

Mostly Cloudy
Winds: 6 mph W

77°

Sun, 05:00 AM

Mostly Cloudy
Winds: 6 mph W

77°

Sun, 06:00 AM

Partly Sunny
Winds: 6 mph NW

77°

Sun, 07:00 AM

Mostly Sunny
Winds: 7 mph NW

76°

Today

Smoke then Chance Showers And Thunderstorms

94°

Winds: 7 to 12 mph S

Tonight

Chance Showers And Thunderstorms

76°

Winds: 6 to 10 mph SW

A chance of showers and thunderstorms before 1am. Some of the storms could be severe. Mostly cloudy, with a low around 76. Southwest wind 6 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.

Sunday

Mostly Sunny

89°

Winds: 6 to 9 mph N

Mostly sunny, with a high near 89. North wind 6 to 9 mph.

Sunday Night

Mostly Clear

71°

Winds: 3 to 8 mph NE

Mostly clear, with a low around 71. Northeast wind 3 to 8 mph.

Monday

Sunny

87°

Winds: 7 mph E

Sunny, with a high near 87. East wind around 7 mph.

Monday Night

Chance Showers And Thunderstorms

73°

Winds: 7 mph S

A chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.

Tuesday

Chance Showers And Thunderstorms

92°

Winds: 6 to 13 mph S

A chance of showers and thunderstorms before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 92. Chance of precipitation is 70%.

Tuesday Night

Showers And Thunderstorms

75°

Winds: 9 to 13 mph SW

Showers and thunderstorms. Mostly cloudy, with a low around 75. Chance of precipitation is 80%.

Wednesday

Chance Showers And Thunderstorms

89°

Winds: 12 mph W

A chance of showers and thunderstorms before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 50%.

Wednesday Night

Chance Showers And Thunderstorms

69°

Winds: 9 mph NW

A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 40%.

Thursday

Slight Chance Rain Showers then Sunny

84°

Winds: 8 mph NW

A slight chance of rain showers before 8am. Sunny, with a high near 84. Chance of precipitation is 20%.

Thursday Night

Mostly Clear

69°

Winds: 6 mph NW

Mostly clear, with a low around 69.

Friday

Sunny

85°

Winds: 6 mph NE

Sunny, with a high near 85.

Friday Night

Slight Chance Showers And Thunderstorms

71°

Winds: 5 mph S

A slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 71.

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.