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Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

91°F

33°C

Humidity 42%
Wind Speed Vrbl 3 mph
Barometer 29.79 in (1009.5 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 26 Jun 2:56 pm EDT
Extended Forecast for

Derwood MD

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms. Partly sunny, with a high near 96. Heat index values as high as 101. West wind around 7 mph. Chance of precipitation is 30%.

    High: 96 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 69. Southwest wind around 7 mph becoming northwest after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    T-storms
    Likely then
    Showers
    Likely

  • Thursday

    Thursday: A chance of showers before 8am. Cloudy through mid morning, then gradual clearing, with a high near 86. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64. Northeast wind 5 to 7 mph.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 85. Northeast wind around 8 mph becoming southeast in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.

    Low: 71 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 89. Chance of precipitation is 50%.

    High: 89 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Chance of precipitation is 40%.

    Low: 77 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 60%.

    High: 91 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Partly sunny, with a high near 96. Heat index values as high as 101. West wind around 7 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 69. Southwest wind around 7 mph becoming northwest after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers before 8am. Cloudy through mid morning, then gradual clearing, with a high near 86. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 64. Northeast wind 5 to 7 mph.
Friday
Mostly sunny, with a high near 85. Northeast wind around 8 mph becoming southeast in the afternoon.
Friday Night
A chance of showers after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Saturday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 89. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Chance of precipitation is 40%.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly clear, with a low around 64. Chance of precipitation is 60%.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
A chance of showers. Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Derwood MD
 39.15°N 77.15°W (Elev. 476 ft)
Last Update:
1:30 pm EDT Jun 26, 2024
Forecast Valid:
3pm EDT Jun 26, 2024-6pm EDT Jul 3, 2024
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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