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

67°F

19°C

Humidity 84%
Wind Speed Calm
Barometer 30.13 in (1021.4 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 25 Jul 3:56 am EDT
Extended Forecast for

2 Miles N Lisbon MD

  • Today

    Today: Mostly sunny, with a high near 81. Light and variable wind.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 84. Calm wind.

    High: 84 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 65. Calm wind. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.

    Low: 68 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely, then showers and possibly a thunderstorm after 8am. High near 84. Chance of precipitation is 80%.

    High: 84 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 65. Chance of precipitation is 80%.

    Low: 65 °F

    Showers then
    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 81. Light and variable wind.
Tonight
Mostly clear, with a low around 62. Calm wind.
Sunday
Mostly sunny, with a high near 84. Calm wind.
Sunday Night
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 65. Calm wind. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
Tuesday
Showers likely, then showers and possibly a thunderstorm after 8am. High near 84. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 65. Chance of precipitation is 80%.
Wednesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
A slight chance of showers. Sunny, with a high near 83. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 65. Chance of precipitation is 20%.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 86. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Lisbon MD
 39.36°N 77.06°W (Elev. 499 ft)
Last Update:
2:23 am EDT Jul 25, 2026
Forecast Valid:
4am EDT Jul 25, 2026-6pm EDT Jul 31, 2026
 
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