National Weather Service forecast

Great Falls, Virginia Weather

52°Overnight: Mostly Clear
Wind S 5 mph
7-DayHourlyRadar

Great Falls 7-Day Forecast

  1. Overnight
    52°F
    Mostly Clear
    1% chance of precipitation

    Mostly clear, with a low around 52. South wind around 5 mph.

  2. Wednesday
    74°F
    Mostly Sunny
    1% chance of precipitation

    Mostly sunny, with a high near 74. South wind 3 to 9 mph, with gusts as high as 18 mph.

  3. Wednesday Night
    62°F
    Mostly Cloudy then Chance Rain Showers
    42% chance of precipitation

    A chance of rain showers after 2am. Mostly cloudy, with a low around 62. South wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

  4. Thursday
    75°F
    Chance Rain Showers
    42% chance of precipitation

    A chance of rain showers. Mostly cloudy, with a high near 75. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

  5. Thursday Night
    61°F
    Chance Rain Showers
    53% chance of precipitation

    A chance of rain showers. Mostly cloudy, with a low around 61. Southwest wind 2 to 7 mph. Chance of precipitation is 50%.

  6. Friday
    70°F
    Chance Light Rain
    52% chance of precipitation

    A chance of rain showers before 7am, then a chance of rain. Mostly cloudy, with a high near 70. Chance of precipitation is 50%.

  7. Friday Night
    50°F
    Chance Light Rain then Partly Cloudy
    30% chance of precipitation

    A chance of rain before 7pm. Partly cloudy, with a low around 50. Chance of precipitation is 30%.

  8. Saturday
    64°F
    Mostly Sunny
    6% chance of precipitation

    Mostly sunny, with a high near 64.

  9. Saturday Night
    43°F
    Partly Cloudy
    5% chance of precipitation

    Partly cloudy, with a low around 43.

  10. Sunday
    61°F
    Mostly Sunny
    1% chance of precipitation

    Mostly sunny, with a high near 61.

  11. Sunday Night
    42°F
    Mostly Clear
    5% chance of precipitation

    Mostly clear, with a low around 42.

  12. Monday
    61°F
    Sunny
    5% chance of precipitation

    Sunny, with a high near 61.

  13. Monday Night
    39°F
    Mostly Clear
    4% chance of precipitation

    Mostly clear, with a low around 39.

  14. Tuesday
    64°F
    Sunny
    3% chance of precipitation

    Sunny, with a high near 64.

Issued by the National Weather Service (LWX office), updated .

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About Great Falls

Population (2020 Census)
15,953
Coordinates
39.012, -77.302
Elevation
348 ft
NWS forecast office
LWX
Time zone
America/New York
Sunrise today
6:39 AM EST
Sunset today
5:05 PM EST
Daylight today
10 h 26 min

Great Falls Weather Questions

What is the weather forecast for Great Falls, Virginia?

Overnight: Mostly clear, with a low around 52. South wind around 5 mph. Wednesday: Mostly sunny, with a high near 74. South wind 3 to 9 mph, with gusts as high as 18 mph.

Will it rain or snow in Great Falls this week?

The best chance of precipitation is Thursday Night at 53%. Periods with a 30% chance or more: Wednesday Night (42%), Thursday (42%), Thursday Night (53%), Friday (52%), Friday Night (30%).

How warm and how cold will it get in Great Falls this week?

The warmest day is Thursday, with a high near 75°F. The coldest night is Monday Night, with a low near 39°F.

What time are sunrise and sunset in Great Falls today?

Sunrise is at 6:39 AM EST and sunset is at 5:05 PM EST, for 10 h 26 min of daylight.

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