Remnants of Arthur and Heavy Rainfall Across the South; Fire Weather Threat in the West

Life-threatening, potentially catastrophic flash flooding expected along the central Gulf Coast as the remnants of Arthur track across the area. Isolated brief tornadoes and damaging gusts remain possible overnight in the Southeast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts of the West Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Light Rain

75°F

24°C

Humidity 52%
Wind Speed NW 10 mph
Barometer 29.77 in (1008.8 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 19 Jun 12:56 am EDT
Extended Forecast for

Gaithersburg MD

  • Overnight

    Overnight: Isolated showers between 2am and 5am.  Mostly cloudy, with a low around 67. Northwest wind around 6 mph.  Chance of precipitation is 20%.

    Low: 67 °F

    Isolated
    Showers

  • Juneteenth

    Juneteenth: Isolated showers between 7am and 9am.  Cloudy through mid morning, then gradual clearing, with a high near 83. Light northwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.  Chance of precipitation is 20%.

    High: 83 °F

    Isolated
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. West wind 5 to 9 mph, with gusts as high as 18 mph.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83. Northwest wind 8 to 11 mph, with gusts as high as 24 mph.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62. Northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms after 2am.  Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm.  High near 85. Chance of precipitation is 80%.

    High: 85 °F

    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am.  Low around 64. Chance of precipitation is 80%.

    Low: 64 °F

    Showers then
    Chance
    Showers

Detailed Forecast

Overnight
Isolated showers between 2am and 5am. Mostly cloudy, with a low around 67. Northwest wind around 6 mph. Chance of precipitation is 20%.
Juneteenth
Isolated showers between 7am and 9am. Cloudy through mid morning, then gradual clearing, with a high near 83. Light northwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 62. West wind 5 to 9 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 83. Northwest wind 8 to 11 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 62. Northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Sunny, with a high near 86.
Sunday Night
A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 85. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 64. Chance of precipitation is 80%.
Tuesday
A slight chance of showers before 8am, then a slight chance of showers after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Sunny, with a high near 84.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Gaithersburg MD
 39.15°N 77.21°W (Elev. 443 ft)
10:52 pm EDT Jun 18, 2026
1am EDT Jun 19, 2026-6pm EDT Jun 25, 2026
 
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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