Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Fair

82°F

28°C

Humidity 70%
Wind Speed Vrbl 6 mph
Barometer 29.99 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 27 Aug 11:47 am EDT
Extended Forecast for

Linganore-Bartonsville MD

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, mainly after 3pm. Some of the storms could be severe.  Mostly sunny, with a high near 87. South wind around 8 mph.  Chance of precipitation is 40%.

    High: 87 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before midnight. Some of the storms could be severe.  Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Severe
    Thunderstorms
    and Patchy
    Fog

  • Friday

    Friday: A slight chance of showers and thunderstorms after 3pm.  Areas of fog before 9am.  Otherwise, partly sunny, with a high near 84. Light northwest wind.  Chance of precipitation is 20%.

    High: 84 °F

    Areas Fog
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Patchy fog between midnight and 3am.  Otherwise, mostly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Sunny, with a high near 85. Light north wind.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 7am.  Otherwise, sunny, with a high near 87.

    High: 87 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, mainly after 3pm. Some of the storms could be severe. Mostly sunny, with a high near 87. South wind around 8 mph. Chance of precipitation is 40%.
Tonight
Showers and thunderstorms likely, mainly before midnight. Some of the storms could be severe. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers and thunderstorms after 3pm. Areas of fog before 9am. Otherwise, partly sunny, with a high near 84. Light northwest wind. Chance of precipitation is 20%.
Friday Night
Patchy fog between midnight and 3am. Otherwise, mostly cloudy, with a low around 65. Calm wind.
Saturday
Sunny, with a high near 85. Light north wind.
Saturday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 67.
Sunday
Patchy fog before 7am. Otherwise, sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Mostly sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Linganore-Bartonsville MD
 39.41°N 77.34°W (Elev. 390 ft)
10:53 am EDT Aug 27, 2026
12pm EDT Aug 27, 2026-6pm EDT Sep 2, 2026
 
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