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Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Partly Cloudy

90°F

32°C

Humidity 68%
Wind Speed SW 10 mph
Barometer 29.97 in (1015.6 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 17 Jul 12:56 pm EDT
Extended Forecast for

2 Miles N Garrett Park MD

Heat Advisory until July 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until July 17, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 94 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 73. West wind 5 to 8 mph becoming northwest after midnight.

    Low: 73 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 86. North wind around 6 mph. Chance of precipitation is 30%.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 85. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 80%.

    High: 85 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 72. Chance of precipitation is 80%.

    Low: 72 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 50%.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 68. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 94. Heat index values as high as 103. West wind around 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 73. West wind 5 to 8 mph becoming northwest after midnight.
Friday
A chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 86. North wind around 6 mph. Chance of precipitation is 30%.
Friday Night
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 40%.
Saturday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 85. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 80%.
Saturday Night
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 72. Chance of precipitation is 80%.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
A chance of showers. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Garrett Park MD
 39.07°N 77.08°W (Elev. 299 ft)
Last Update:
1:30 pm EDT Jul 17, 2025
Forecast Valid:
1pm EDT Jul 17, 2025-6pm EDT Jul 23, 2025
 
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