Heat Continues for the East and South-Central U.S.; Strong to Severe Storms Across the Mid-Atlantic and Northeast

The extremely dangerous heat wave continues across the East Coast and much of the South-Central U.S. today. Record high temperatures are expected for some areas especially across the Mid-Atlantic where extreme heat risk conditions reside. There is a Slight Risk (level 2 of 5) of severe thunderstorms today for the northern Mid-Atlantic into portions of southern New England. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

N/A

Humidity NA
Wind Speed W 15 km/h
Barometer 29.90 in
Dewpoint N/A
Visibility 16 km
Last update 17 Jul 11:56 am EDT
Extended Forecast for

2 Miles W Rockville MD

Flood Watch July 17, 02:00pm until July 18, 12:00am
Heat Advisory July 17, 12:28pm until July 17, 08:00pm
Click here for hazard details and duration
Flood Watch
Heat Advisory
  •  
    Heat Advisory July 17, 12:28pm until July 17, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • This Afternoon

    High: 36 °C

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then scattered showers. Some of the storms could be severe and produce heavy rainfall.  Patchy fog between 9pm and 10pm. Low around 21. West wind 5 to 13 km/h.  Chance of precipitation is 80%. New rainfall amounts between 1 and 2 cm possible.

    Low: 21 °C

    Severe
    Thunderstorms
    and Patchy
    Fog then
    Scattered
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 31. North wind around 10 km/h.

    High: 31 °C

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 19. North wind 5 to 10 km/h.

    Low: 19 °C

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 31. Northeast wind 5 to 10 km/h.

    High: 31 °C

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 21.

    Low: 21 °C

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 31.

    High: 31 °C

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 21.

    Low: 21 °C

    Mostly Cloudy

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly after 4pm. Some of the storms could be severe and produce heavy rainfall. Partly sunny and hot, with a high near 36. Heat index values as high as 39. Southwest wind 13 to 16 km/h, with gusts as high as 29 km/h. Chance of precipitation is 60%. New rainfall amounts between 1 and 2 cm possible.
Tonight
Showers and thunderstorms before 2am, then scattered showers. Some of the storms could be severe and produce heavy rainfall. Patchy fog between 9pm and 10pm. Low around 21. West wind 5 to 13 km/h. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 cm possible.
Thursday
Mostly sunny, with a high near 31. North wind around 10 km/h.
Thursday Night
Mostly clear, with a low around 19. North wind 5 to 10 km/h.
Friday
Sunny, with a high near 31. Northeast wind 5 to 10 km/h.
Friday Night
Partly cloudy, with a low around 21.
Saturday
Partly sunny, with a high near 31.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 32.
Sunday Night
Mostly cloudy, with a low around 22.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 32. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 22. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 32. Chance of precipitation is 50%.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Rockville MD
 39.08°N 77.19°W (Elev. 449 m)
11:52 am EDT Jul 17, 2024
12pm EDT Jul 17, 2024-6pm EDT Jul 23, 2024
 
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