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Great Falls, VA Weather Forecast
Great Falls, VA Weather Forecast Date: 225 AM EDT Wed Oct 21 2026
The area/counties/county of: Fairfax, including the cities of: Burke, Fairfax Station, Reston, Annandale, Chantilly, Langley, and Mclean.or toggle through each period.
Overnight... Clear. Lows in the upper 40s. North winds 5 to 10 mph.
Wednesday... Sunny. Highs in the mid 60s. North winds 5 to 10 mph.
Wednesday Night... Mostly clear. Lows in the lower 40s. North winds 5 to 10 mph.
Thursday... Sunny. Highs in the mid 60s. Northwest winds 5 to 10 mph with gusts up to 20 mph.
Thursday Night... Clear. Lows in the mid 40s. North winds 5 to 10 mph.
Friday... Sunny. Highs around 60.
Friday Night... Mostly clear. Lows in the upper 30s.
Saturday... Sunny. Highs around 60.
Saturday Night... Mostly clear. Lows around 40.
Sunday... Sunny. Highs in the mid 60s.
Sunday Night... Mostly clear. Lows in the lower 40s.
Monday... Sunny. Highs in the upper 60s.
Monday Night... Mostly clear. Lows in the upper 40s.
POP = Probability of Precipitation
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