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Heavy Rainfall Across South Texas; Heat in the West

Excessive rainfall may produce locally considerable flash flooding over parts of South Texas, the western Gulf Coast, and Lower Mississippi River Valley through Thursday. Hot temperatures will persist over central and northern California and the Pacific Northwest through today. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

51°F

11°C

Humidity 100%
Wind Speed Calm
Barometer 29.95 in (1015.4 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 16 Jun 5:56 am EDT
Extended Forecast for

Dayton MD

  • Today

    Today: Sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 61. Southeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then becoming sunny, with a high near 85. Southwest wind 5 to 8 mph.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 66. Light south wind.

    Low: 66 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers after 5pm. Partly sunny, with a high near 91. South wind 11 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.

    High: 91 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: A chance of showers before 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
A slight chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 61. Southeast wind around 5 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy through mid morning, then becoming sunny, with a high near 85. Southwest wind 5 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 66. Light south wind.
Thursday
A slight chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers after 5pm. Partly sunny, with a high near 91. South wind 11 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Juneteenth
A chance of showers before 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 83.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dayton MD
 39.24°N 76.99°W (Elev. 568 ft)
Last Update:
4:52 am EDT Jun 16, 2026
Forecast Valid:
6am EDT Jun 16, 2026-6pm EDT Jun 22, 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