National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

68°F

20°C

Humidity 96%
Wind Speed SW 3 mph
Barometer 29.91 in (1014.0 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 23 May 8:56 pm EDT
Extended Forecast for

Olney MD

  • Tonight

    Tonight: Scattered showers and thunderstorms. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 40%.

    Low: 64 °F

    Scattered
    T-storms and
    Patchy Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 81. Light north wind.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 80. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.

    Low: 65 °F

    Chance
    T-storms

  • Memorial Day

    Memorial Day: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Scattered showers and thunderstorms. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 40%.
Friday
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 81. Light north wind.
Friday Night
Partly cloudy, with a low around 64. Calm wind.
Saturday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 80. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Sunday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Sunday Night
A chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Memorial Day
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.
Monday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Tuesday
A chance of showers after 8am. Mostly sunny, with a high near 77. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly sunny, with a high near 73. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly clear, with a low around 53. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Olney MD
 39.14°N 77.1°W (Elev. 449 ft)
Last Update:
7:30 pm EDT May 23, 2024
Forecast Valid:
9pm EDT May 23, 2024-6pm EDT May 30, 2024
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation