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Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

A Few Clouds

79°F

26°C

Humidity 39%
Wind Speed W 9 mph
Barometer 30.07 in (1019.2 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 14 Apr 10:56 am EDT
Extended Forecast for

Rockville MD

  • Today

    Today: Mostly sunny, with a high near 87. Southwest wind 6 to 9 mph, with gusts as high as 23 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers before 10pm. Partly cloudy, with a low around 69. Southwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 91. Southwest wind 3 to 8 mph. Winds could gust as high as 18 mph.

    High: 91 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 71. Southwest wind 5 to 8 mph.

    Low: 71 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 90. Southwest wind 5 to 13 mph, with gusts as high as 23 mph.

    High: 90 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 40%.

    High: 83 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 87. Southwest wind 6 to 9 mph, with gusts as high as 23 mph.
Tonight
A slight chance of showers before 10pm. Partly cloudy, with a low around 69. Southwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 91. Southwest wind 3 to 8 mph. Winds could gust as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 71. Southwest wind 5 to 8 mph.
Thursday
Partly sunny, with a high near 90. Southwest wind 5 to 13 mph, with gusts as high as 23 mph.
Thursday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly cloudy, with a high near 71. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rockville MD
 39.08°N 77.16°W (Elev. 430 ft)
Last Update:
10:53 am EDT Apr 14, 2026
Forecast Valid:
11am EDT Apr 14, 2026-6pm EDT Apr 20, 2026
 
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