Widespread Summer Heat; Enhanced Severe Weather

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, south-central Plains, Mid to Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, an enhanced risk of organized severe thunderstorms is possible from Iowa to Illinois and Indiana. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

91°F

33°C

Humidity 52%
Wind Speed S 6 mph
Barometer 30.12 in (1020.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 20 Aug 11:56 am EDT
Extended Forecast for

Aspen Hill MD

  • This
    Afternoon

    This Afternoon: Scattered showers and thunderstorms after 1pm.  Partly sunny, with a high near 93. Heat index values as high as 100. Southeast wind around 6 mph.  Chance of precipitation is 50%.

    Scattered
    T-storms

    High: 93 °F

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 2am.  Mostly cloudy, with a low around 72. South wind around 5 mph.  Chance of precipitation is 40%.

    Chance
    T-storms then
    Chance
    Showers

    Low: 72 °F

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am.  Partly sunny, with a high near 91. South wind 6 to 9 mph.  Chance of precipitation is 50%.

    Slight Chance
    T-storms then
    Chance
    T-storms

    High: 91 °F

  • Wednesday
    Night

    Wednesday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 74. Southwest wind 5 to 7 mph.  Chance of precipitation is 30%.

    Chance
    T-storms

    Low: 74 °F

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 8am.  Partly sunny, with a high near 91. West wind 5 to 7 mph.  Chance of precipitation is 50%.

    Chance
    Showers then
    Chance
    T-storms

    High: 91 °F

  • Thursday
    Night

    Thursday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 67. Chance of precipitation is 50%.

    Chance
    T-storms then
    Chance
    Showers

    Low: 67 °F

  • Friday

    Friday: A chance of showers and thunderstorms.  Partly sunny, with a high near 80. Chance of precipitation is 40%.

    Chance
    T-storms

    High: 80 °F

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 63. Chance of precipitation is 40%.

    Chance
    T-storms

    Low: 63 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 80.

    Mostly Sunny

    High: 80 °F

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms after 1pm. Partly sunny, with a high near 93. Heat index values as high as 100. Southeast wind around 6 mph. Chance of precipitation is 50%.
Tonight
A chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 72. South wind around 5 mph. Chance of precipitation is 40%.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 91. South wind 6 to 9 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.
Thursday
A chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 91. West wind 5 to 7 mph. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 65.
Monday
Mostly sunny, with a high near 81.
Click Map For Forecast
Point Forecast:
Aspen Hill MD
 39.07°N 77.08°W (Elev. 299 ft)
10:31 am EDT Aug 20, 2019
12pm EDT Aug 20, 2019-6pm EDT Aug 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