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

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Partly Cloudy

18°C

65°F

Humidity 97%
Wind Speed Calm
Barometer 1016.2 mb (29.98 in)
Dewpoint 18°C (64°F)
Visibility 16 km
Last update 3 Jun 5:56 am EDT
Extended Forecast for

Olney MD

  • Today

    Today: Isolated showers before 8am, then scattered showers and thunderstorms after 2pm. Mostly sunny, with a high near 28. Northwest wind 3 to 8 km/h. Chance of precipitation is 30%.

    High: 28 °C

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers and thunderstorms before 8pm. Patchy fog after 3am. Otherwise, mostly clear, with a low around 18. Calm wind. Chance of precipitation is 30%.

    Low: 18 °C

    Scattered
    Showers then
    Patchy Fog

  • Tuesday

    Tuesday: Scattered showers and thunderstorms after 2pm. Mostly sunny, with a high near 29. Light and variable wind becoming southeast 6 to 11 km/h in the morning. Chance of precipitation is 30%.

    High: 29 °C

    Mostly Sunny
    then
    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers and thunderstorms before 8pm, then isolated showers. Mostly cloudy, with a low around 19. Southeast wind 8 to 11 km/h. Chance of precipitation is 30%.

    Low: 19 °C

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers before 11am, then scattered showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 28. South wind 11 to 14 km/h. Chance of precipitation is 60%.

    High: 28 °C

    Scattered
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 2am, then scattered showers. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.

    Low: 21 °C

    Showers
    Likely

  • Thursday

    Thursday: Scattered showers. Partly sunny, with a high near 29. Chance of precipitation is 50%.

    High: 29 °C

    Scattered
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 2am. Partly cloudy, with a low around 17. Chance of precipitation is 30%.

    Low: 17 °C

    Chance
    Showers

  • Friday

    Friday: A chance of showers after 2pm. Mostly sunny, with a high near 26. Chance of precipitation is 30%.

    High: 26 °C

    Sunny then
    Chance
    Showers

Detailed Forecast

Today
Isolated showers before 8am, then scattered showers and thunderstorms after 2pm. Mostly sunny, with a high near 28. Northwest wind 3 to 8 km/h. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms before 8pm. Patchy fog after 3am. Otherwise, mostly clear, with a low around 18. Calm wind. Chance of precipitation is 30%.
Tuesday
Scattered showers and thunderstorms after 2pm. Mostly sunny, with a high near 29. Light and variable wind becoming southeast 6 to 11 km/h in the morning. Chance of precipitation is 30%.
Tuesday Night
Scattered showers and thunderstorms before 8pm, then isolated showers. Mostly cloudy, with a low around 19. Southeast wind 8 to 11 km/h. Chance of precipitation is 30%.
Wednesday
Scattered showers before 11am, then scattered showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 28. South wind 11 to 14 km/h. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 2am, then scattered showers. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
Thursday
Scattered showers. Partly sunny, with a high near 29. Chance of precipitation is 50%.
Thursday Night
A chance of showers before 2am. Partly cloudy, with a low around 17. Chance of precipitation is 30%.
Friday
A chance of showers after 2pm. Mostly sunny, with a high near 26. Chance of precipitation is 30%.
Friday Night
A chance of showers before 8pm. Partly cloudy, with a low around 15. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly sunny, with a high near 26. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Partly cloudy, with a low around 16. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly sunny, with a high near 26. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Olney MD
 39.14°N 77.1°W (Elev. 449 m)
Last Update:
4:30 am EDT Jun 3, 2024
Forecast Valid:
6am EDT Jun 3, 2024-6pm EDT Jun 9, 2024
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation