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

Critical Fire Weather and Severe Thunderstorm Threats This Week

Gusty winds and low relative humidity will contribute to critical fire weather Monday over parts of the central and southern High Plains. Scattered to widespread severe thunderstorms may bring damaging winds, large hail, and tornadoes Monday through Thursday over the lower Mississippi River Valley and southern Plains into the Midwest and Ohio Valley. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

40°F

4°C

Humidity 93%
Wind Speed Calm
Barometer 30.07 in (1019.7 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 9 Mar 7:56 am EDT
Extended Forecast for

Sandy Spring MD

  • Today

    Today: Sunny, with a high near 70. Calm wind becoming south around 6 mph in the afternoon.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. Light south wind.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of rain, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 77. South wind 5 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    High: 77 °F

    Slight Chance
    Rain then
    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain and thunderstorms, then rain likely after 8pm. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.

    Low: 44 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 52. Breezy. Chance of precipitation is 60%.

    High: 52 °F

    Rain Likely
    and Breezy
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow before 8pm. Mostly clear, with a low around 31. Chance of precipitation is 30%.

    Low: 31 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Friday

    Friday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 70. Calm wind becoming south around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 46. Calm wind.
Tuesday
Sunny, with a high near 76. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 57. Light south wind.
Wednesday
A chance of rain, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 77. South wind 5 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of rain and thunderstorms, then rain likely after 8pm. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Thursday
Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 52. Breezy. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow before 8pm. Mostly clear, with a low around 31. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Partly sunny, with a high near 53.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
Mostly cloudy, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sandy Spring MD
 39.16°N 77.04°W (Elev. 469 ft)
Last Update:
7:53 am EDT Mar 9, 2026
Forecast Valid:
8am EDT Mar 9, 2026-6pm EDT Mar 15, 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