Great Falls, VA Weather & Growing Conditions
Overnight
61°F
Partly Cloudy
Partly cloudy, with a low around 61. North wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Partly Cloudy | 7 mph N | 0% |
| Saturday | 79°F | Partly Sunny | 7 mph E | 7% |
| Saturday Night | 65°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph SE | 16% |
| Sunday | 84°F | Chance Rain Showers | 8 to 12 mph S | 39% |
| Sunday Night | 61°F | Showers And Thunderstorms Likely | 3 to 12 mph W | 70% |
| Monday | 70°F | Chance Rain Showers | 8 to 12 mph N | 36% |
| Monday Night | 57°F | Chance Rain Showers | 6 to 9 mph NE | 45% |
| Tuesday | 64°F | Rain Showers Likely | 13 mph NE | 62% |
| Tuesday Night | 53°F | Rain Showers Likely | 13 mph NE | 62% |
| Wednesday | 60°F | Chance Rain Showers | 14 mph NE | 51% |
| Wednesday Night | 54°F | Chance Rain Showers | 13 mph NE | 46% |
| Thursday | 62°F | Chance Rain Showers | 13 mph NE | 46% |
| Thursday Night | 52°F | Chance Showers And Thunderstorms | 7 to 10 mph N | 39% |
| Friday | 67°F | Slight Chance Rain Showers | 10 mph N | 19% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Great Falls, VA
Last spring frost
Apr 14
First fall frost
Oct 29
Growing season
198 days
Hardiness zone
7b
Explore more for Great Falls, VA: full frost dates · planting calendar · Virginia frost dates
Climate data from the nearest NOAA station, Vienna, Va (8.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.