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Strong to Severe Thunderstorms from the Southern Plains to the Ohio Valley; Heavy Rain and Flooding in the Southern Plains

Severe thunderstorms are expected from central Texas to middle Tennessee and Kentucky this afternoon into tonight. Large hail and damaging winds are the main threats. Heavy to excessive rainfall may produce areas of flooding today and tonight from central Texas into the lower Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

65°F

18°C

Humidity 100%
Wind Speed Calm
Barometer 29.91 in (1014.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 2 May 6:56 am EDT
Extended Forecast for

Rockville MD

  • Today

    Today: Scattered showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 85. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 85 °F

    Mostly Sunny
    then
    Scattered
    T-storms

  • Tonight

    Tonight: Isolated showers between midnight and 1am. Partly cloudy, with a low around 65. South wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Isolated
    Showers

  • Saturday

    Saturday: Scattered showers, then showers and possibly a thunderstorm after 2pm. High near 87. South wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Scattered
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 2am, then scattered showers. Low around 65. South wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Showers

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 75. South wind around 8 mph. Chance of precipitation is 90%.

    High: 75 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 63. Chance of precipitation is 90%.

    Low: 63 °F

    Showers

  • Monday

    Monday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 74. Chance of precipitation is 90%.

    High: 74 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 62. Chance of precipitation is 90%.

    Low: 62 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

Detailed Forecast

Today
Scattered showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 85. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tonight
Isolated showers between midnight and 1am. Partly cloudy, with a low around 65. South wind 3 to 6 mph. Chance of precipitation is 20%.
Saturday
Scattered showers, then showers and possibly a thunderstorm after 2pm. High near 87. South wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm before 2am, then scattered showers. Low around 65. South wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 75. South wind around 8 mph. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 63. Chance of precipitation is 90%.
Monday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 74. Chance of precipitation is 90%.
Monday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 62. Chance of precipitation is 90%.
Tuesday
Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Partly cloudy, with a low around 56. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 72. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Rockville MD
 39.06°N 77.17°W (Elev. 397 ft)
Last Update:
7:30 am EDT May 2, 2025
Forecast Valid:
7am EDT May 2, 2025-6pm EDT May 8, 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