Tue Feb 18 12:33:58 AM EST 2025 Fairfax- Including the cities of Reston, Herndon, Annandale, Centreville, Chantilly, McLean, and Franconia 1232 AM EST Tue Feb 18 2025 .OVERNIGHT...Partly cloudy. Lows in the lower 20s. Northwest winds around 10 mph with gusts up to 20 mph. .TUESDAY...Partly sunny. Highs in the mid 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows around 18. Northwest winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy with a 50 percent chance of snow. Highs in the upper 20s. Northwest winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly cloudy with a 50 percent chance of snow. Lows around 20. North winds 5 to 10 mph. .THURSDAY...Mostly cloudy with a 50 percent chance of snow showers. Highs around 30. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 20s. .FRIDAY...Sunny. Highs in the upper 30s. .FRIDAY NIGHT...Mostly clear. Lows in the lower 20s. .SATURDAY...Sunny. Highs in the mid 40s. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 20s. .SUNDAY...Mostly sunny. Highs in the upper 40s. .SUNDAY NIGHT...Mostly cloudy. Lows in the lower 30s. .MONDAY...Partly sunny. Highs in the lower 50s.