Current conditions at
Gaithersburg - Montgomery County Airport (KGAI)
Lat: 39.17°NLon: 77.17°WElev: 495ft.
Fair
55°F
13°C
| Humidity | 37% |
| Wind Speed | Vrbl 7 mph |
| Barometer | 30.52 in (1035.2 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 53°F (12°C) |
| Last update | 9 Apr 12:56 pm EDT |
Extended Forecast for
Olney MD
This Afternoon
High: 59 °F
Mostly Sunny
Tonight
Low: 40 °F
Mostly Clear
Friday
High: 73 °F
Patchy Fog
then SunnyFriday Night
Low: 53 °F
Increasing
CloudsSaturday
High: 67 °F
Sunny
Saturday Night
Low: 46 °F
Mostly Clear
Sunday
High: 71 °F
Mostly Sunny
Sunday Night
Low: 56 °F
Partly Cloudy
Monday
High: 82 °F
Mostly Cloudy
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 59. Southeast wind around 7 mph.
Tonight
Mostly clear, with a low around 40. Southeast wind around 6 mph becoming calm after midnight.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 73. Calm wind becoming south 5 to 8 mph in the morning.
Friday Night
Increasing clouds, with a low around 53. South wind around 7 mph becoming west after midnight.
Saturday
Sunny, with a high near 67. North wind 8 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly cloudy, with a high near 82.
Monday Night
Mostly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Mostly sunny, with a high near 89.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Olney MD
39.16°N 77.06°W (Elev. 486 ft)
39.16°N 77.06°W (Elev. 486 ft)
10:53 am EDT Apr 9, 2026
1pm EDT Apr 9, 2026-6pm EDT Apr 15, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
