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

Storm Moving from Western into Central U.S. through Wednesday

A storm system moving over the Rockies Wednesday will bring marginal risks for excessive rainfall and severe thunderstorms from parts of New Mexico into western South Dakota. Moderate snow is expected from northwestern Wyoming into southern Montana. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

46°F

8°C

Humidity NA
Wind Speed Calm
Barometer 30.08 in (1019.9 mb)
Dewpoint N/A
Visibility 9.00 mi
Last update 15 Oct 5:56 am EDT
Extended Forecast for

Sandy Spring MD

  • Today

    Today: Mostly sunny, with a high near 68. North wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 68 °F

    Mostly Sunny

  • Tonight

    Tonight: Clear, with a low around 40. North wind around 8 mph.

    Low: 40 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 61. North wind 6 to 13 mph, with gusts as high as 22 mph.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 37. North wind around 6 mph.

    Low: 37 °F

    Clear

  • Friday

    Friday: Areas of frost before 8am. Otherwise, sunny, with a high near 62. North wind around 7 mph.

    High: 62 °F

    Areas Frost
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers after 2pm. Partly sunny, with a high near 70. Chance of precipitation is 30%.

    High: 70 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 68. North wind 6 to 11 mph, with gusts as high as 20 mph.
Tonight
Clear, with a low around 40. North wind around 8 mph.
Thursday
Sunny, with a high near 61. North wind 6 to 13 mph, with gusts as high as 22 mph.
Thursday Night
Clear, with a low around 37. North wind around 6 mph.
Friday
Areas of frost before 8am. Otherwise, sunny, with a high near 62. North wind around 7 mph.
Friday Night
Mostly clear, with a low around 41.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
A chance of showers after 2pm. Partly sunny, with a high near 70. Chance of precipitation is 30%.
Sunday Night
Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Monday
A chance of showers. Partly sunny, with a high near 64. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sandy Spring MD
 39.16°N 77.04°W (Elev. 469 ft)
Last Update:
4:29 am EDT Oct 15, 2025
Forecast Valid:
6am EDT Oct 15, 2025-6pm EDT Oct 21, 2025
 
Forecast Discussion
 
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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