Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

55°F

13°C

Humidity NA
Wind Speed Calm
Barometer 29.99 in (1016.5 mb)
Dewpoint N/A
Visibility 10.00 mi
Last update 18 Apr 4:56 am EDT
Extended Forecast for

Rockville MD

  • Today

    Today: Mostly sunny, with a high near 84. Light east wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 22 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers likely, mainly after 3am.  Increasing clouds, with a low around 51. Southeast wind 6 to 13 mph becoming northeast after midnight. Winds could gust as high as 21 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers, mainly between 8am and 2pm.  High near 57. Northwest wind 13 to 18 mph, with gusts as high as 29 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. West wind 6 to 9 mph.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers before 2pm.  Mostly sunny, with a high near 53. Northwest wind 8 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 20%.

    High: 53 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Areas of frost after 2am.  Otherwise, mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear
    then Areas
    Frost

  • Tuesday

    Tuesday: Areas of frost before 8am.  Otherwise, sunny, with a high near 60.

    High: 60 °F

    Areas Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers after 2pm.  Partly sunny, with a high near 71. Chance of precipitation is 30%.

    High: 71 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 84. Light east wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 22 mph.
Tonight
Showers likely, mainly after 3am. Increasing clouds, with a low around 51. Southeast wind 6 to 13 mph becoming northeast after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers, mainly between 8am and 2pm. High near 57. Northwest wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Mostly clear, with a low around 41. West wind 6 to 9 mph.
Monday
A slight chance of showers before 2pm. Mostly sunny, with a high near 53. Northwest wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Monday Night
Areas of frost after 2am. Otherwise, mostly clear, with a low around 33.
Tuesday
Areas of frost before 8am. Otherwise, sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 71. Chance of precipitation is 30%.
Wednesday Night
A chance of showers before 8pm. Partly cloudy, with a low around 50. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 54.
Friday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Rockville MD
 39.08°N 77.16°W (Elev. 430 ft)
4:53 am EDT Apr 18, 2026
5am EDT Apr 18, 2026-6pm EDT Apr 24, 2026
 
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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