Current conditions at
Gaithersburg - Montgomery County Airport (KGAI)
Lat: 39.17°NLon: 77.17°WElev: 495ft.
A Few Clouds
45°F
7°C
| Humidity | 74% |
| Wind Speed | E 3 mph |
| Barometer | 30.43 in (1031.6 mb) |
| Dewpoint | 37°F (3°C) |
| Visibility | 10.00 mi |
| Last update | 12 Apr 4:56 am EDT |
Extended Forecast for
Olney MD
Today

High: 72 °F
Mostly Sunny
Tonight

Low: 55 °F
Mostly Cloudy
Monday
High: 86 °F
Partly Sunny
then Slight
Chance
Showers and
BreezyMonday Night

Low: 61 °F
Partly Cloudy
Tuesday
High: 89 °F
Mostly Sunny
then Slight
Chance
T-stormsTuesday Night
Low: 64 °F
Slight Chance
T-storms then
Slight Chance
ShowersWednesday

High: 90 °F
Mostly Sunny
Wednesday Night

Low: 67 °F
Mostly Cloudy
Thursday

High: 90 °F
Partly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 72. East wind 7 to 13 mph becoming south in the afternoon. Winds could gust as high as 22 mph.
Tonight
Mostly cloudy, with a low around 55. South wind 10 to 13 mph, with gusts as high as 22 mph.
Monday
A slight chance of showers after 2pm. Partly sunny, with a high near 86. Breezy, with a southwest wind 13 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 61. West wind 5 to 9 mph.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Southwest wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 64. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 90.
Wednesday Night
Mostly cloudy, with a low around 67.
Thursday
Partly sunny, with a high near 90.
Thursday Night
Mostly cloudy, with a low around 67.
Friday
Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 88.
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)
4:53 am EDT Apr 12, 2026
5am EDT Apr 12, 2026-6pm EDT Apr 18, 2026


