I-66 weather conditions near Markham, Virginia
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 75°F 2025-06-23T06:55:00-04:00
Today 2025-06-23, Hot. Sunny and hot, with a high near 97. Heat index values as high as 103. Calm wind becoming north around 5 mph in the afternoon.
Tonight 2025-06-23, Mostly Clear. Mostly clear, with a low around 76. Calm wind.
Tuesday 2025-06-24, Hot. Sunny and hot, with a high near 97. Heat index values as high as 104. Light northwest wind.
Tuesday Night 2025-06-24, Mostly Clear. Mostly clear, with a low around 75. Calm wind.
Wednesday 2025-06-25, Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Sunny, with a high near 95. Calm wind. Chance of precipitation is 30%.
Wednesday Night 2025-06-25, Chance T-storms then Chance Showers. A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Thursday 2025-06-26, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 50%.
Thursday Night 2025-06-26, Chance T-storms. A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Friday 2025-06-27, Mostly Sunny then Showers Likely. Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Friday Night 2025-06-27, Showers Likely then Chance T-storms. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Saturday 2025-06-28, Mostly Sunny then Showers Likely. Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 88. Chance of precipitation is 60%.
Saturday Night 2025-06-28, Showers Likely then Chance T-storms. Showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Sunday 2025-06-29, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 50%.