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

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

51°F

11°C

Humidity 56%
Wind Speed SE 10 mph
Barometer 30.12 in (1021.6 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 25 Mar 11:56 pm EDT
Extended Forecast for

2 Miles SSE Derwood MD

  • Overnight

    Overnight: Mostly cloudy, with a low around 48. South wind around 10 mph.

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of rain between 9am and noon. Mostly sunny, with a high near 74. Southwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 74 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of rain before 7pm, then rain likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 55. Southwest wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Partly Cloudy
    then Rain
    Likely

  • Friday

    Friday: Rain. High near 62. North wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 62 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 8pm. Mostly cloudy, with a low around 33. North wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 33 °F

    Rain Likely
    then Slight
    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 48. South wind around 10 mph.
Thursday
A slight chance of rain between 9am and noon. Mostly sunny, with a high near 74. Southwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of rain before 7pm, then rain likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 55. Southwest wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Rain. High near 62. North wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain likely, mainly before 8pm. Mostly cloudy, with a low around 33. North wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Saturday
Sunny, with a high near 47.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Partly sunny, with a high near 63.
Monday Night
Mostly cloudy, with a low around 49.
Tuesday
A chance of rain. Partly sunny, with a high near 66. Chance of precipitation is 30%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Wednesday
A chance of rain. Partly sunny, with a high near 75. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Derwood MD
 39.1°N 77.13°W (Elev. 400 ft)
Last Update:
10:55 pm EDT Mar 25, 2026
Forecast Valid:
12am EDT Mar 26, 2026-6pm EDT Apr 1, 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