Extreme Heat and Excessive Rainfall This Week
A significant heat wave continues for the Rockies, Northern Plains, and Great Lakes into the Mid-Atlantic, peaking in intensity through midweek and lingering across parts of the Northern Plains and Midwest until this weekend. Excessive rainfall my bring life-threatening and locally catastrophic flash and urban flooding across portions of southwestern Texas through early Friday. Read More >
| NWS Forecast for: Fairfax County Issued by: National Weather Service Baltimore, MD/Washington, D.C. Last Update: 756 PM EDT Tue Jul 14 2026 | |
Tonight: Clear. Lows in the lower 70s. Southwest winds around 5 mph. Wednesday: Sunny, hot with highs around 100. West winds 5 to 10 mph. Wednesday Night: Mostly clear. Lows in the upper 70s. West winds 5 to 10 mph. Thursday: Sunny, hot with highs around 101. Northwest winds around 5 mph, becoming west in the afternoon. Heat index values up to 109. Thursday Night: Partly cloudy. Lows in the mid 70s. West winds 5 to 10 mph, becoming north after midnight. Friday: Sunny, hot with highs in the upper 90s. Friday Night: Partly cloudy with a chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 40 percent. Saturday: Showers likely with a chance of thunderstorms. Highs in the lower 90s. Chance of rain 60 percent. Saturday Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 50 percent. Sunday: Partly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50 percent. Sunday Night: Partly cloudy. Lows in the lower 70s. Monday: Mostly sunny. Highs in the lower 90s. Monday Night: Partly cloudy. Lows in the lower 70s. Tuesday: Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 40 percent. | |
| Zone Forecast: Fairfax County | |
Visit your local NWS office at: https://www.weather.gov/lwx |