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.

Partly Cloudy

42°F

6°C

Humidity 38%
Wind Speed NW 12 G 21 mph
Barometer 30.54 in (1035.8 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 28 Mar 11:56 am EDT
Extended Forecast for

Olney MDSimilar City Names

  • This Afternoon

    This Afternoon: Sunny, with a high near 50. Northwest wind around 14 mph, with gusts as high as 25 mph.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 28. Northwest wind around 6 mph becoming calm after midnight.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 59. South wind 6 to 15 mph, with gusts as high as 26 mph.

    High: 59 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 45. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 69. Southwest wind around 11 mph, with gusts as high as 23 mph.

    High: 69 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 20%.

    Low: 54 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 70%.

    High: 81 °F

    Mostly Sunny
    then Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 50. Northwest wind around 14 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 28. Northwest wind around 6 mph becoming calm after midnight.
Sunday
Mostly sunny, with a high near 59. South wind 6 to 15 mph, with gusts as high as 26 mph.
Sunday Night
Mostly cloudy, with a low around 45. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.
Monday
Partly sunny, with a high near 69. Southwest wind around 11 mph, with gusts as high as 23 mph.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Showers likely after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 70%.
Wednesday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 70%.
Thursday
Showers likely. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Thursday Night
Showers likely. Cloudy, with a low around 42. Chance of precipitation is 70%.
Friday
Showers likely. Cloudy, with a high near 51. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Olney MDSimilar City Names
 39.14°N 77.1°W (Elev. 449 ft)
Last Update:
10:54 am EDT Mar 28, 2026
Forecast Valid:
12pm EDT Mar 28, 2026-6pm EDT Apr 3, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation