Hazardous Weather Conditions
Current conditions at
Washington/Dulles International Airport, DC (KIAD)
Lat: 38.93°NLon: 77.45°WElev: 312ft.
Mostly Cloudy
81°F
27°C
| Humidity | 35% |
| Wind Speed | S 12 mph |
| Barometer | 29.69 in (1005.3 mb) |
| Dewpoint | 51°F (11°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 22 Mar 2:52 pm EDT |
Extended Forecast for
Great Falls VA
This Afternoon
High: 84 °F
Sunny
Tonight
Low: 52 °F
Slight Chance
T-storms then
Showers
LikelyMonday
High: 58 °F
Showers then
Mostly SunnyMonday Night
Low: 32 °F
Mostly Clear
Tuesday
High: 51 °F
Mostly Sunny
Tuesday Night
Low: 37 °F
Mostly Cloudy
Wednesday
High: 61 °F
Partly Sunny
Wednesday Night
Low: 45 °F
Mostly Cloudy
Thursday
High: 67 °F
Mostly Cloudy
Detailed Forecast
This Afternoon
Sunny, with a high near 84. Southwest wind 9 to 13 mph, with gusts as high as 23 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 52. South wind 6 to 11 mph becoming northeast after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers before 7am, then a chance of rain between 7am and 10am. High near 58. Northwest wind 10 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly clear, with a low around 32. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 51. Northwest wind around 6 mph becoming light and variable in the morning.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
Mostly cloudy, with a low around 45.
Thursday
Mostly cloudy, with a high near 67.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.
Friday
A chance of rain. Mostly cloudy, with a high near 61. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 49.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
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)
2:23 pm EDT Mar 22, 2026
2pm EDT Mar 22, 2026-6pm EDT Mar 28, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
