Severe Thunderstorms in the Central U.S.; Heavy to Excessive Rainfall in the Ohio Valley and Central Appalachians

Severe thunderstorms producing damaging winds, hail, and a few tornadoes are expected through Tuesday across parts of the central Plains and lower to mid Missouri Valley. Heavy to excessive rainfall could produce flooding across portions of the Ohio Valley into the Central Appalachians through Tuesday. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fog/Mist

64°F

18°C

Humidity NA
Wind Speed Calm
Barometer 30.05 in (1018.5 mb)
Dewpoint N/A
Visibility 1.50 mi
Last update 17 Jun 1:56 am EDT
Extended Forecast for

North Potomac MD

  • Overnight

    Overnight: A chance of showers, mainly after 5am.  Patchy fog.  Otherwise, cloudy, with a low around 65. Calm wind.  Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A chance of rain before noon, then a slight chance of showers between noon and 2pm, then a slight chance of showers and thunderstorms after 2pm.  Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 81. South wind 5 to 7 mph.  Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers and
    Patchy Fog
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 5am.  Mostly cloudy, with a low around 71. Southeast wind 3 to 6 mph.  Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm.  High near 90. Southwest wind 5 to 9 mph.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm.  Low around 73. Southwest wind 3 to 5 mph.  Chance of precipitation is 80%.

    Low: 73 °F

    Showers then
    Mostly Clear

  • Juneteenth

    Juneteenth: Showers likely and possibly a thunderstorm after 2pm.  Mostly sunny, with a high near 92. Chance of precipitation is 60%.

    High: 92 °F

    Sunny then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm.  Partly cloudy, with a low around 66. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers, mainly after 5am. Patchy fog. Otherwise, cloudy, with a low around 65. Calm wind. Chance of precipitation is 30%.
Tuesday
A chance of rain before noon, then a slight chance of showers between noon and 2pm, then a slight chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 81. South wind 5 to 7 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 5am. Mostly cloudy, with a low around 71. Southeast wind 3 to 6 mph. Chance of precipitation is 40%.
Wednesday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 90. Southwest wind 5 to 9 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 8pm. Low around 73. Southwest wind 3 to 5 mph. Chance of precipitation is 80%.
Juneteenth
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 60%.
Friday
Sunny, with a high near 87.
Friday Night
Partly cloudy, with a low around 68.
Saturday
Mostly sunny, with a high near 91.
Saturday Night
Partly cloudy, with a low around 73.
Sunday
Mostly sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny and hot, with a high near 97.
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ABOUT THIS FORECAST

 
Point Forecast:
North Potomac MD
 39.11°N 77.22°W (Elev. 351 ft)
1:29 am EDT Jun 17, 2025
2am EDT Jun 17, 2025-6pm EDT Jun 23, 2025
 
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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