Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

83°F

28°C

Humidity 33%
Wind Speed S 12 mph
Barometer 29.67 in (1005.7 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 22 Mar 3:56 pm EDT
Extended Forecast for

Sandy Spring MD

  • Tonight

    Tonight: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 4am.  Low around 49. South wind 6 to 14 mph becoming northeast after midnight. Winds could gust as high as 28 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Isolated
    T-storms then
    Showers

  • Monday

    Monday: Showers, mainly before 9am.  High near 57. Northwest wind 9 to 18 mph, with gusts as high as 30 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49. North wind around 6 mph becoming light and variable.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. Calm wind becoming south around 6 mph after midnight.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Rain likely, mainly after 2am.  Mostly cloudy, with a low around 49. Chance of precipitation is 60%.

    Low: 49 °F

    Chance Rain
    then Rain
    Likely

Detailed Forecast

Tonight
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 49. South wind 6 to 14 mph becoming northeast after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers, mainly before 9am. High near 57. Northwest wind 9 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly clear, with a low around 30. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 49. North wind around 6 mph becoming light and variable.
Tuesday Night
Mostly cloudy, with a low around 35. Calm wind becoming south around 6 mph after midnight.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 44.
Thursday
Mostly cloudy, with a high near 65.
Thursday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Friday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Sunny, with a high near 47.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Sandy Spring MD
 39.16°N 77.04°W (Elev. 469 ft)
4:36 pm EDT Mar 22, 2026
4pm EDT Mar 22, 2026-6pm EDT Mar 29, 2026
 
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Additional Resources

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