National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Current conditions at

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

A Few Clouds

68°F

20°C

Humidity 78%
Wind Speed Calm
Barometer 29.84 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 17 Jun 8:47 am EDT
Extended Forecast for

Rosemont MD

  • Today

    Today: Mostly sunny, with a high near 86. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 68. Calm wind becoming south 5 to 9 mph after midnight. Winds could gust as high as 20 mph.

    Low: 68 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly before 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 90. West wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    High: 90 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 65. West wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 84. West wind 8 to 14 mph, with gusts as high as 22 mph.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 86. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 68. Calm wind becoming south 5 to 9 mph after midnight. Winds could gust as high as 20 mph.
Thursday
A chance of showers and thunderstorms, mainly before 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 90. West wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Thursday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 65. West wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Juneteenth
Mostly sunny, with a high near 84. West wind 8 to 14 mph, with gusts as high as 22 mph.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rosemont MD
 39.35°N 77.61°W (Elev. 482 ft)
Last Update:
7:53 am EDT Jun 17, 2026
Forecast Valid:
9am EDT Jun 17, 2026-6pm EDT Jun 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation