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

Areas of Severe Thunderstorms and Excessive Rainfall Through This Weekend

Severe thunderstorms which can bring large hail, damaging winds, and isolated tornadoes will be possible over parts of the central U.S. through this weekend. Thunderstorms with heavy to excessive rainfall moving from Texas into the mid-Mississippi Valley through this weekend may produce areas of flooding. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

65°F

18°C

Humidity 90%
Wind Speed Calm
Barometer 29.99 in (1016.3 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 6 Jun 1:56 am EDT
Extended Forecast for

Olney MDSimilar City Names

  • Overnight

    Overnight: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 93. West wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 93 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 68. West wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 90. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 90 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. North wind around 6 mph.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 63. Calm wind.
Saturday
Increasing clouds, with a high near 93. West wind 6 to 11 mph, with gusts as high as 21 mph.
Saturday Night
A chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 68. West wind 5 to 7 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 90. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 64. North wind around 6 mph.
Monday
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Mostly cloudy, with a low around 66.
Wednesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Olney MDSimilar City Names
 39.14°N 77.1°W (Elev. 449 ft)
Last Update:
2:32 am EDT Jun 6, 2026
Forecast Valid:
2am EDT Jun 6, 2026-6pm EDT Jun 12, 2026
 
Forecast Discussion
 
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Additional Resources

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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