Wed Jan 8 12:34:32 AM EST 2025 Fairfax- Including the cities of Reston, Herndon, Annandale, Centreville, Chantilly, McLean, and Franconia 1233 AM EST Wed Jan 8 2025 .OVERNIGHT...Mostly cloudy. Lows around 18. Northwest winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Partly sunny. Highs in the lower 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 16. Northwest winds 10 to 15 mph with gusts up to 25 mph. .THURSDAY...Sunny. Highs in the upper 20s. Northwest winds 15 to 20 mph with gusts up to 35 mph. .THURSDAY NIGHT...Mostly clear. Lows around 17. Northwest winds 15 to 20 mph with gusts up to 35 mph. .FRIDAY...Partly sunny. Highs in the lower 30s. .FRIDAY NIGHT...Snow likely. Lows in the lower 20s. Chance of snow 70 percent. .SATURDAY...Partly sunny with a 50 percent chance of snow. Highs in the mid 30s. .SATURDAY NIGHT...Mostly clear. Lows in the lower 20s. .SUNDAY...Sunny. Highs in the mid 30s. .SUNDAY NIGHT...Mostly clear. Lows around 15. .MONDAY...Mostly sunny. Highs in the mid 30s. .MONDAY NIGHT...Partly cloudy. Lows in the lower 20s. .TUESDAY...Mostly sunny. Highs in the mid 30s.