Current conditions at
Gaithersburg - Montgomery County Airport (KGAI)
Lat: 39.17°NLon: 77.17°WElev: 495ft.
Overcast
52°F
11°C
| Humidity | 55% |
| Wind Speed | S 8 mph |
| Barometer | 30.05 in (1018.8 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 49°F (9°C) |
| Last update | 26 Mar 2:56 am EDT |
Extended Forecast for
Olney MD
Overnight

Low: 47 °F
Mostly Cloudy
Thursday

High: 76 °F
Mostly Sunny
Thursday Night
Low: 49 °F
Mostly Cloudy
then Chance
RainFriday

High: 59 °F
Rain
Friday Night
Low: 32 °F
Rain Likely
then Slight
Chance RainSaturday

High: 46 °F
Sunny
Saturday Night

Low: 31 °F
Mostly Clear
Sunday

High: 57 °F
Sunny
Sunday Night

Low: 43 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 47. South wind around 10 mph.
Thursday
Mostly sunny, with a high near 76. Southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Thursday Night
A chance of rain and thunderstorms, mainly after 5am. Increasing clouds, with a low around 49. Southwest wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Friday
Rain. High near 59. North wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain likely, mainly before 8pm. Mostly cloudy, with a low around 32. North wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Saturday
Sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Partly sunny, with a high near 64.
Monday Night
A chance of rain. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Wednesday
A chance of rain. Partly sunny, with a high near 74. Chance of precipitation is 40%.
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)
2:26 am EDT Mar 26, 2026
3am EDT Mar 26, 2026-6pm EDT Apr 1, 2026


