Fire Weather Concerns and Severe Weather

Dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the northern and central High Plains through this weekend, where fuels remain largely receptive. Severe thunderstorms and heavy rainfall are possible from the Plains into the Upper Midwest, as well as in the Ohio Valley and portions of the Mid-Atlantic through this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

72°F

22°C

Humidity 97%
Wind Speed Vrbl 6 mph
Barometer 30.11 in (1020.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 12 Sep 9:56 am EDT
Extended Forecast for

Olney MD

  • Today

    Today: Mostly cloudy, with a high near 80. Southeast wind 6 to 9 mph.

    High: 80 °F

    Mostly Cloudy

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then scattered showers and thunderstorms after 5am.  Patchy fog between 11pm and 5am. Low around 67. Southeast wind around 6 mph becoming calm  after midnight.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 67 °F

    Showers and
    Patchy Fog

  • Sunday

    Sunday: A chance of showers before 8am.  Patchy fog between 7am and 9am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 83. Northwest wind 3 to 6 mph.  Chance of precipitation is 30%.

    High: 83 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65. Calm wind becoming northwest around 5 mph after midnight.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77. North wind around 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 80. Southeast wind 6 to 9 mph.
Tonight
Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then scattered showers and thunderstorms after 5am. Patchy fog between 11pm and 5am. Low around 67. Southeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers before 8am. Patchy fog between 7am and 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 83. Northwest wind 3 to 6 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 65. Calm wind becoming northwest around 5 mph after midnight.
Monday
Mostly sunny, with a high near 77. North wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
A slight chance of showers. Sunny, with a high near 84. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 64. Chance of precipitation is 20%.
Friday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Olney MD
 39.16°N 77.06°W (Elev. 486 ft)
9:27 am EDT Sep 12, 2026
10am EDT Sep 12, 2026-6pm EDT Sep 18, 2026
 
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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