Areas of Dangerous Heat and Severe Thunderstorms

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 before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

73°F

23°C

Humidity 84%
Wind Speed S 6 mph
Barometer 30.03 in (1017.8 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 27 Aug 1:56 am EDT
Extended Forecast for

2 Miles S Dayton MD

  • Overnight

    Overnight: A slight chance of showers and thunderstorms before 4am, then a slight chance of thunderstorms after 4am.  Mostly cloudy, with a low around 69. South wind around 6 mph.  Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Scattered showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then scattered showers and thunderstorms after 4pm. Some of the storms could be severe.  Partly sunny, with a high near 87. South wind 5 to 8 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Mostly Sunny
    then Severe
    Thunderstorms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Some of the storms could be severe.  Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 67. Light and variable wind.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Severe
    Thunderstorms
    and Patchy
    Fog

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm.  Patchy fog before 10am.  Otherwise, partly sunny, with a high near 84. Light north wind.  Chance of precipitation is 20%.

    High: 84 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms before 4am, then a slight chance of thunderstorms after 4am. Mostly cloudy, with a low around 69. South wind around 6 mph. Chance of precipitation is 20%.
Thursday
Scattered showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then scattered showers and thunderstorms after 4pm. Some of the storms could be severe. Partly sunny, with a high near 87. South wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Some of the storms could be severe. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 67. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers and thunderstorms after 2pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 84. Light north wind. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 66. Calm wind.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 69.
Monday
Mostly sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
Mostly sunny, with a high near 92.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 72. Chance of precipitation is 20%.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Dayton MD
 39.22°N 77°W (Elev. 492 ft)
2:21 am EDT Aug 27, 2026
2am 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