


Current conditions at
Gaithersburg - Montgomery County Airport (KGAI)
Lat: 39.17°NLon: 77.17°WElev: 495ft.
Light Rain
57°F
14°C
Humidity | 90% |
Wind Speed | Calm |
Barometer | 29.95 in (1015.4 mb) |
Dewpoint | 54°F (12°C) |
Visibility | 10.00 mi |
Last update | 21 May 12:56 am EDT |
Extended Forecast for
Olney MD
Overnight
Low: 55 °F
Showers
LikelyWednesday
High: 58 °F
Showers then
Showers
LikelyWednesday Night
Low: 53 °F
Showers and
Patchy Fog
then Showers
Likely and
Patchy FogThursday
High: 68 °F
Showers
LikelyThursday Night
Low: 51 °F
Chance
T-storms then
Chance
ShowersFriday
High: 65 °F
Chance
ShowersFriday Night
Low: 47 °F
Chance
Showers then
Mostly ClearSaturday
High: 65 °F
Mostly Sunny
Saturday Night
Low: 47 °F
Mostly Clear
Detailed Forecast
Overnight
Showers likely, mainly after 5am. Cloudy, with a low around 55. Southeast wind 3 to 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers, with thunderstorms also possible after 5pm. High near 58. Southeast wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm before 11pm, then showers likely. Patchy fog. Low around 53. East wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then showers likely after 5pm. Mostly cloudy, with a high near 68. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. West wind around 7 mph. Chance of precipitation is 30%.
Friday
A chance of showers, mainly after 2pm. Mostly sunny, with a high near 65. Chance of precipitation is 30%.
Friday Night
A chance of showers before 8pm. Mostly clear, with a low around 47. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Partly sunny, with a high near 70.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Memorial Day
A chance of showers. Partly sunny, with a high near 72. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 50%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Olney MD
39.16°N 77.06°W (Elev. 486 ft)
39.16°N 77.06°W (Elev. 486 ft)
10:30 pm EDT May 20, 2025
1am EDT May 21, 2025-6pm EDT May 27, 2025