Current conditions at
Washington/Dulles International Airport, DC (KIAD)
Lat: 38.93°NLon: 77.45°WElev: 312ft.
Light Rain
57°F
14°C
| Humidity | 81% |
| Wind Speed | S 9 mph |
| Barometer | 29.82 in (1009.8 mb) |
| Dewpoint | 51°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 20 Mar 7:52 pm EDT |
Extended Forecast for
Great Falls VA
Tonight
Low: 49 °F
Showers
LikelySaturday
High: 65 °F
Mostly Sunny
Saturday Night
Low: 45 °F
Partly Cloudy
Sunday
High: 79 °F
Partly Sunny
Sunday Night
Low: 52 °F
Scattered
Showers then
Showers
LikelyMonday
High: 61 °F
Showers
Likely then
Scattered
ShowersMonday Night
Low: 35 °F
Mostly Clear
Tuesday
High: 51 °F
Sunny
Tuesday Night
Low: 38 °F
Mostly Cloudy
Detailed Forecast
Tonight
Showers and thunderstorms likely before 2am, then isolated showers between 2am and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 49. Light southwest wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 65. North wind 6 to 9 mph.
Saturday Night
Partly cloudy, with a low around 45. East wind around 6 mph becoming south after midnight.
Sunday
Partly sunny, with a high near 79. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 52. Southwest wind 6 to 10 mph. Chance of precipitation is 60%.
Monday
Showers likely, mainly before 8am. Partly sunny, with a high near 61. Chance of precipitation is 60%.
Monday Night
Mostly clear, with a low around 35.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Mostly cloudy, with a high near 55.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 46. Chance of precipitation is 40%.
Friday
A chance of rain. Partly sunny, with a high near 59. Chance of precipitation is 40%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Great Falls VA
39.01°N 77.29°W (Elev. 348 ft)
39.01°N 77.29°W (Elev. 348 ft)
7:53 pm EDT Mar 20, 2026
8pm EDT Mar 20, 2026-6pm EDT Mar 27, 2026
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