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Pacific Storm System Across the West; Fire Weather Concerns in the Southeast

A Pacific storm system will bring strong winds and low elevation rain to much of the West Coast, and heavy high elevation mountain snow to the Sierra-Nevada through Wednesday. Fire weather concerns will continue into Tuesday across the Mid-South and Southeast as gusty winds and dry conditions persist. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fair

34°F

1°C

Humidity 64%
Wind Speed Calm
Barometer 30.35 in (1027.7 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 21 Apr 12:52 am EDT
Extended Forecast for

2 Miles NNW Great Falls VA

Freeze Warning April 21, 02:00am until April 21, 10:00am
Click here for hazard details and duration
Freeze Warning

  • Overnight

    Overnight: Widespread frost after 2am. Otherwise, clear, with a low around 31. Light north wind.

    Low: 31 °F

    Frost

  • Tuesday

    Tuesday: Widespread frost before 10am. Otherwise, sunny, with a high near 62. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 62 °F

    Frost then
    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 49. South wind 7 to 9 mph. Chance of precipitation is 20%.

    Low: 49 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 72. Southwest wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51. Northwest wind 3 to 5 mph.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers

Detailed Forecast

Overnight
Widespread frost after 2am. Otherwise, clear, with a low around 31. Light north wind.
Tuesday
Widespread frost before 10am. Otherwise, sunny, with a high near 62. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 49. South wind 7 to 9 mph. Chance of precipitation is 20%.
Wednesday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 72. Southwest wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 51. Northwest wind 3 to 5 mph.
Thursday
Sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 79.
Friday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Saturday
Showers likely, mainly after 2pm. Partly sunny, with a high near 74. Chance of precipitation is 60%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Sunday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Monday
A chance of showers. Partly sunny, with a high near 66. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Great Falls VA
 39.03°N 77.32°W (Elev. 285 ft)
Last Update:
10:53 pm EDT Apr 20, 2026
Forecast Valid:
1am EDT Apr 21, 2026-6pm EDT Apr 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation