Weather Great Falls long-term weather forecast
Long-term weather forecast for Great Falls for ten days.
Saturday, Jan 10
19 / 4°C
| 3.4 mm | 23 km/h |
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Weather forecast Great Falls, Virginia, USA extended forecast
Great Falls, Virginia, USA - information
State: Virginia, USAGPS coordinates: 38.9982; -77.2883
Time zone: America / New York
time difference in hours with time in US is -6 hours
Population: 15 427
Altitude: 104 m
The administrative part:
- Virginia, Richmond
- Fairfax County, Centreville
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Weather Great Falls, Virginia, USA. Weather forecast Great Falls.
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Data source
Weather forecast for Great Falls is supplied by MET Norway Norwegian Meteorological Institute and the NRK.Feels like
To calculate the perceived temperature, we use the Australian Apparent Temperature (AAT) model, which is designed for year-round calculations and takes air humidity into account in addition to temperature and wind speed.Weather with Meteobox for your website
Astronomical information Great Falls
data are always in the local timeSun and light
Jan. 15, 2026
| Sunrise: | Sunset: |
| 7:26 am | 5:11 pm |
| Noon: | Length of day: |
| 12:18 pm | 09:45 |
| Start of civil twilight*: | End of civil twilight*: |
| 6:56 am | 5:41 pm |
| Start of nautical twilight*: | End of nautical twilight*: |
| 6:24 am | 6:13 pm |
| Start of astronomical twilight*: | End of astronomical twilight*: |
| 5:52 am | 6:45 pm |
| * What is Twilight? | |
Moon and moon phases
| Moonrise: | Moonset: |
| 01/15/2026 5:13 am | 01/15/2026 2:07 pm |
| Next new moon: | Next full moon: |
| 01/18/2026 | 02/01/2026 |
