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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 39.16°N 77.06°W (Text-Only)
NWS Forecast for: Olney MD
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Last Update: 4:53 pm EDT Jun 29, 2026		Print

  • Tonight

    Tonight: Mostly clear, with a low around 67. South wind 3 to 6 mph.

    Low: 67 °F

    Mostly Clear


  • Tuesday

    Tuesday: Sunny, with a high near 89. Light southwest wind becoming south 5 to 9 mph in the morning.

    High: 89 °F

    Sunny


  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 69. South wind around 7 mph.

    Low: 69 °F

    Mostly Clear


  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 96. Heat index values as high as 104. Southwest wind 5 to 7 mph. Chance of precipitation is 20%.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 75. Southwest wind around 5 mph.

    Low: 75 °F

    Mostly Clear


  • Thursday

    Thursday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot


  • Thursday
    Night

    Thursday Night: Clear, with a low around 77.

    Low: 77 °F

    Clear


  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 101. Chance of precipitation is 20%.

    High: 101 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday
    Night

    Friday Night: A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. Chance of precipitation is 20%.

    Low: 75 °F

    Slight Chance
    T-storms

    • Tonight: Mostly clear, with a low around 67. South wind 3 to 6 mph.

    Tuesday: Sunny, with a high near 89. Light southwest wind becoming south 5 to 9 mph in the morning.

    Tuesday Night: Mostly clear, with a low around 69. South wind around 7 mph.

    Wednesday: A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 96. Heat index values as high as 104. Southwest wind 5 to 7 mph. Chance of precipitation is 20%.

    Wednesday Night: Mostly clear, with a low around 75. Southwest wind around 5 mph.

    Thursday: Sunny and hot, with a high near 98.

    Thursday Night: Clear, with a low around 77.

    Friday: A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 101. Chance of precipitation is 20%.

    Friday Night: A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. Chance of precipitation is 20%.

    Independence Day: Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly sunny and hot, with a high near 99. Chance of precipitation is 60%.

    Saturday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.

    Sunday: A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 40%.

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.

    Monday: A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 50%.


    Olney MD
     39.16°N 77.06°W (Elev. 486 ft)

    Visit your local NWS office at: https://www.weather.gov/lwx