| NWS Forecast for: Fairfax County Issued by: National Weather Service Baltimore, MD/Washington, D.C. Last Update: 1256 PM EST Tue Jan 20 2026 | |
| This Afternoon: Sunny. Highs in the upper 20s. West winds 5 to 10 mph with gusts up to 20 mph. Tonight: Mostly clear. Lows around 16. Northwest winds around 5 mph in the evening, becoming light and variable. Wednesday: Mostly sunny. Highs around 40. South winds 10 to 15 mph. Gusts up to 30 mph in the afternoon. Wednesday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 30s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Thursday: Mostly sunny. Highs around 50. West winds 5 to 10 mph. Thursday Night: Partly cloudy. Lows in the mid 20s. Friday: Mostly cloudy. Highs in the upper 30s. Friday Night: Mostly cloudy. Cold with lows around 10 above. Wind chill values as low as zero. Saturday: Mostly cloudy with a 50 percent chance of snow. Highs around 20. Wind chill values as low as 5 below. Saturday Night: Snow. Lows 10 to 15. Chance of snow 80 percent. Sunday: Snow. Highs in the lower 20s. Chance of snow 80 percent. Sunday Night: Mostly cloudy with a 50 percent chance of snow. Cold with lows around 10 above. Monday: Mostly sunny. Highs in the mid 20s. Wind chill values as low as zero. | |
| Zone Forecast: Fairfax County | |
Visit your local NWS office at: https://www.weather.gov/lwx |