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

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

84°F

29°C

Humidity 57%
Wind Speed NW 7 G 16 mph
Barometer 29.94 in (1014.6 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 30 Jun 8:56 pm EDT
Extended Forecast for

Ashton-Sandy Spring MD

Severe T-storm Watch June 30, 09:45pm until June 30, 11:00pm
Click here for hazard details and duration
...
  •  
    Severe T-storm Watch June 30, 09:45pm until June 30, 11:00pm

    NOW until 11:00pm Sun

    Severe T-storm Watch

  • Tonight

    Low: 59 °F

    Severe
    Thunderstorms

  • Monday

    Monday: Sunny, with a high near 78. North wind 13 to 15 mph, with gusts as high as 22 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59. North wind around 6 mph.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83. Light and variable wind becoming east 5 to 7 mph in the afternoon.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63. Southeast wind 3 to 6 mph.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Independence Day

    Independence Day: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 94. Chance of precipitation is 40%.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Tonight
Scattered showers and thunderstorms, mainly before 11pm. Some of the storms could be severe. Partly cloudy, with a low around 59. North wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 78. North wind 13 to 15 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 59. North wind around 6 mph.
Tuesday
Sunny, with a high near 83. Light and variable wind becoming east 5 to 7 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 63. Southeast wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 71.
Independence Day
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 94. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Ashton-Sandy Spring MD
 39.13°N 77.01°W (Elev. 400 ft)
Last Update:
8:25 pm EDT Jun 30, 2024
Forecast Valid:
9pm EDT Jun 30, 2024-6pm EDT Jul 7, 2024
 
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