Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Thunderstorm Light Rain

73°F

23°C

Humidity NA
Wind Speed S 9 mph
Barometer 30.09 in (1019.9 mb)
Dewpoint N/A
Visibility 10.00 mi
Last update 27 Jul 1:56 am EDT
Extended Forecast for

Germantown MD

  • Overnight

    Overnight: Scattered showers and thunderstorms.  Mostly cloudy, with a low around 74. Calm wind.  Chance of precipitation is 50%.

    Low: 74 °F

    Scattered
    Showers

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 3pm.  Partly sunny, with a high near 91. Heat index values as high as 102. Light and variable wind becoming west around 6 mph in the morning.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 91 °F

    Partly Sunny
    then T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 8pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 74. Light west wind.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    T-storms
    Likely then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 93. Heat index values as high as 102. North wind 3 to 5 mph.

    High: 93 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am.  Mostly cloudy, with a low around 75. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 74. Calm wind. Chance of precipitation is 50%.
Sunday
Showers and thunderstorms likely, mainly after 3pm. Partly sunny, with a high near 91. Heat index values as high as 102. Light and variable wind becoming west around 6 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 74. Light west wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 93. Heat index values as high as 102. North wind 3 to 5 mph.
Monday Night
Mostly clear, with a low around 73. Calm wind.
Tuesday
Sunny, with a high near 95.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Mostly sunny and hot, with a high near 97.
Wednesday Night
A chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 75. Chance of precipitation is 30%.
Thursday
A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Germantown MD
 39.18°N 77.23°W (Elev. 446 ft)
1:30 am EDT Jul 27, 2025
2am EDT Jul 27, 2025-6pm EDT Aug 2, 2025
 
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Additional Resources

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Hourly Weather Forecast

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