I-66 weather conditions near Derwood, Maryland
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Overcast 66°F 2024-05-09T17:56:00-04:00 
Tonight 2024-05-09, Showers Likely. Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 1am, then scattered showers and thunderstorms after 1am. Mostly cloudy, with a low around 55. East wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday 2024-05-10, Showers Likely. A chance of showers and thunderstorms before 8am, then showers likely between 8am and 5pm, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 59. East wind 7 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night 2024-05-10, Chance Showers. A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Cloudy, with a low around 47. Northeast wind around 7 mph. Chance of precipitation is 40%.Saturday 2024-05-11, Mostly Cloudy then Chance Showers. A chance of showers after 2pm. Partly sunny, with a high near 63. North wind around 6 mph becoming southwest in the afternoon. Chance of precipitation is 40%.
Saturday Night 2024-05-11, Showers Likely. A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 49. Southeast wind 6 to 8 mph. Chance of precipitation is 60%.Sunday 2024-05-12, Chance Showers then Chance T-storms. A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 65. Chance of precipitation is 40%.
Sunday Night 2024-05-12, Mostly Clear. Mostly clear, with a low around 47.
Monday 2024-05-13, Mostly Sunny. Mostly sunny, with a high near 75.
Monday Night 2024-05-13, Partly Cloudy. Partly cloudy, with a low around 57.Tuesday 2024-05-14, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 40%.
- Tuesday Night 2024-05-14, Showers Likely. Showers and thunderstorms likely. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Wednesday 2024-05-15, Showers Likely. Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Wednesday Night 2024-05-15, Chance T-storms. A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
Thursday 2024-05-16, Chance Showers. A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 40%.