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

Nestor Bringing Impacts to the Southeast; Strong Cold Front in the West

Post-tropical Storm Nestor will produce heavy rain with the potential for flash flooding, storm surge up to 4 feet, strong winds, and severe thunderstorms over Florida and parts of the Southeast. In the West, a cold front will produce mountain snow and strong winds. Fire weather threats remain critical in portions of southern California, the Great Basin, and High Plains. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

17°C

63°F

Humidity 45%
Wind Speed SW 11 km/h
Barometer 1019.0 mb (30.04 in)
Dewpoint 5°C (41°F)
Visibility 16 km
Last update 19 Oct 3:56 pm EDT
Extended Forecast for

Derwood MD

  • Tonight

    Tonight: Rain likely, mainly after 5am. Increasing clouds, with a low around 10. Southeast wind 8 to 10 km/h. Chance of precipitation is 60%. New precipitation amounts of less than 1 mm possible.

    Mostly Cloudy
    then Rain
    Likely

    Low: 10 °C

  • Sunday

    Sunday: Rain, mainly before 2pm. High near 15. North wind 8 to 18 km/h. Chance of precipitation is 80%. New precipitation amounts between 1 and 2.5 mm possible.

    Rain

    High: 15 °C

  • Sunday
    Night

    Sunday Night: A slight chance of rain before 2am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 8. North wind 5 to 13 km/h. Chance of precipitation is 20%.

    Slight Chance
    Rain and
    Patchy Fog

    Low: 8 °C

  • Monday

    Monday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 20. Calm wind becoming southeast 5 to 8 km/h in the afternoon.

    Patchy Fog
    then Mostly
    Sunny

    High: 20 °C

  • Monday
    Night

    Monday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 13. Southeast wind 5 to 10 km/h. Chance of precipitation is 20%.

    Mostly Cloudy
    then Slight
    Chance
    Showers

    Low: 13 °C

  • Tuesday

    Tuesday: Showers likely, mainly after 8am. Cloudy, with a high near 19. Chance of precipitation is 70%.

    Showers
    Likely

    High: 19 °C

  • Tuesday
    Night

    Tuesday Night: A chance of showers. Partly cloudy, with a low around 8. Chance of precipitation is 30%.

    Chance
    Showers

    Low: 8 °C

  • Wednesday

    Wednesday: Sunny, with a high near 18.

    Sunny

    High: 18 °C

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 6.

    Mostly Clear

    Low: 6 °C

Detailed Forecast

Tonight
Rain likely, mainly after 5am. Increasing clouds, with a low around 10. Southeast wind 8 to 10 km/h. Chance of precipitation is 60%. New precipitation amounts of less than 1 mm possible.
Sunday
Rain, mainly before 2pm. High near 15. North wind 8 to 18 km/h. Chance of precipitation is 80%. New precipitation amounts between 1 and 2.5 mm possible.
Sunday Night
A slight chance of rain before 2am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 8. North wind 5 to 13 km/h. Chance of precipitation is 20%.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 20. Calm wind becoming southeast 5 to 8 km/h in the afternoon.
Monday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 13. Southeast wind 5 to 10 km/h. Chance of precipitation is 20%.
Tuesday
Showers likely, mainly after 8am. Cloudy, with a high near 19. Chance of precipitation is 70%.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 8. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 18.
Wednesday Night
Mostly clear, with a low around 6.
Thursday
Sunny, with a high near 19.
Thursday Night
Mostly clear, with a low around 9.
Friday
A chance of showers. Mostly sunny, with a high near 18. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 9. Chance of precipitation is 50%.
Saturday
A chance of showers. Partly sunny, with a high near 14. Chance of precipitation is 30%.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Derwood MD
 39.12°N 77.13°W (Elev. 106 m)
Last Update:
1:30 pm EDT Oct 19, 2019
Forecast Valid:
4pm EDT Oct 19, 2019-6pm EDT Oct 26, 2019
 
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