Dangerously Excessive Heat and Humidity Continues from the Midwest and Eastward

Oppressive heat and humidity will continue through Saturday from the Midwest to the East Coast. The Midwest will get a slight reprieve on Sunday as a cold front moves through the area, while excessive heat continues in the East. In addition, strong to severe storms will bring potential for damaging winds, hail, and heavy rain on Saturday. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

27°C

81°F

Humidity 82%
Wind Speed Calm
Barometer 1015.2 mb (29.96 in)
Dewpoint 24°C (75°F)
Visibility 16 km
Heat Index31°C (87°F)
Last update 19 Jul 10:56 pm EDT
Extended Forecast for

2 Miles SSW Aspen Hill MD

Excessive Heat Watch July 21, 11:00am until July 21, 09:00pm
Excessive Heat Warning July 20, 11:00am until July 20, 09:00pm
Click here for hazard details and duration
Excessive Heat Watch
Excessive Heat Warning
  • Tonight

    Tonight: Mostly clear, with a low around 26. West wind 5 to 10 km/h.

    Mostly Clear

    Low: 26 °C

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 38. Heat index values as high as 44. West wind 8 to 11 km/h.

    Hot

    High: 38 °C

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 26. West wind 5 to 10 km/h becoming calm  after midnight.

    Partly Cloudy

    Low: 26 °C

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 37. Heat index values as high as 43. West wind 8 to 11 km/h.  Chance of precipitation is 30%.

    Mostly Sunny
    then Chance
    T-storms

    High: 37 °C

  • Sunday
    Night

    Sunday Night: A chance of showers and thunderstorms, mainly before 2am.  Mostly cloudy, with a low around 24. Calm wind.  Chance of precipitation is 40%.

    Chance
    T-storms

    Low: 24 °C

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 8am.  Mostly cloudy, with a high near 32. Chance of precipitation is 70%.

    T-storms
    Likely

    High: 32 °C

  • Monday
    Night

    Monday Night: Showers likely and possibly a thunderstorm.  Cloudy, with a low around 20. Chance of precipitation is 70%.

    Showers
    Likely

    Low: 20 °C

  • Tuesday

    Tuesday: A chance of showers.  Mostly cloudy, with a high near 27. Chance of precipitation is 50%.

    Chance
    Showers

    High: 27 °C

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 18.

    Partly Cloudy

    Low: 18 °C

Detailed Forecast

Tonight
Mostly clear, with a low around 26. West wind 5 to 10 km/h.
Saturday
Mostly sunny and hot, with a high near 38. Heat index values as high as 44. West wind 8 to 11 km/h.
Saturday Night
Partly cloudy, with a low around 26. West wind 5 to 10 km/h becoming calm after midnight.
Sunday
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 37. Heat index values as high as 43. West wind 8 to 11 km/h. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 24. Calm wind. Chance of precipitation is 40%.
Monday
Showers and thunderstorms likely, mainly after 8am. Mostly cloudy, with a high near 32. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 20. Chance of precipitation is 70%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 27. Chance of precipitation is 50%.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
Mostly sunny, with a high near 28.
Wednesday Night
Mostly clear, with a low around 18.
Thursday
Sunny, with a high near 30.
Thursday Night
Mostly clear, with a low around 19.
Friday
Mostly sunny, with a high near 31.
Click Map For Forecast
Point Forecast:
2 Miles SSW Aspen Hill MD
 39.08°N 77.11°W (Elev. 90 m)
10:30 pm EDT Jul 19, 2019
11pm EDT Jul 19, 2019-6pm EDT Jul 26, 2019
 
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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