| NWS Forecast for: Great Falls VA Issued by: National Weather Service Baltimore, MD/Washington, D.C. Last Update: 7:29 pm EDT Jun 22, 2025 | |
Tonight: Partly cloudy, with a low around 77. Southwest wind around 6 mph becoming calm in the evening. Monday: Sunny and hot, with a high near 98. Heat index values as high as 109. Northwest wind 5 to 7 mph. Monday Night: Mostly clear, with a low around 77. Calm wind. Tuesday: Sunny and hot, with a high near 99. Heat index values as high as 108. Northwest wind 3 to 6 mph. Tuesday Night: Mostly clear, with a low around 77. Northwest wind 3 to 5 mph. Wednesday: A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 98. Chance of precipitation is 20%. Wednesday Night: Partly cloudy, with a low around 76. Thursday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 40%. Thursday Night: A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. Chance of precipitation is 40%. Friday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 50%. Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 40%. Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 50%. Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%. Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 40%. | |
| Great Falls VA 39.01°N 77.29°W (Elev. 348 ft) | |
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