| NWS Forecast for: Fairfax County Issued by: National Weather Service Baltimore, MD/Washington, D.C. Last Update: 1056 AM EDT Sat Sep 19 2026 |  |
| Rest Of Today: Partly sunny. Highs in the upper 70s. East winds around 5 mph. Tonight: Mostly cloudy. Lows in the mid 60s. Southeast winds around 5 mph. Sunday: Mostly cloudy. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 80s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 40 percent. Sunday Night: Showers likely. Lows in the lower 60s. Southwest winds around 5 mph, becoming north with gusts up to 20 mph after midnight. Chance of rain 70 percent. Monday: Partly sunny in the morning, then becoming mostly cloudy. A 40 percent chance of showers. Highs in the lower 70s. Northeast winds 5 to 10 mph. Monday Night: Mostly cloudy with a 50 percent chance of showers. Lows in the upper 50s. Tuesday: Showers likely. Highs in the mid 60s. Chance of rain 60 percent. Tuesday Night: Mostly cloudy with a 50 percent chance of showers. Lows in the mid 50s. Wednesday: Mostly cloudy with a 50 percent chance of showers. Highs in the lower 60s. Wednesday Night: Mostly cloudy with a chance of showers. Lows in the mid 50s. Chance of rain 50 percent. Thursday: Mostly cloudy with a chance of showers. Highs in the lower 60s. Chance of rain 50 percent. Thursday Night: Mostly cloudy. Lows in the lower 50s. Friday: Partly sunny. Highs in the upper 60s. | |
| Zone Forecast: Fairfax County | |
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