21771 Weather (Mount Airy, MD)

Weather forecast for: Mount Airy MD

Last Update: 10:53 pm EDT Sep 12, 2026

Overnight: Showers and possibly a thunderstorm. Patchy fog before 3am, then patchy fog after 4am. Low around 67. Light south wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday: Showers and thunderstorms before 8am, then a slight chance of showers between 8am and 9am. Patchy fog before 9am. High near 82. Calm wind becoming west around 6 mph in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday Night: Partly cloudy, with a low around 65. Calm wind becoming northwest around 6 mph after midnight.

Monday: Mostly sunny, with a high near 75. North wind 9 to 11 mph, with gusts as high as 20 mph.

Monday Night: Mostly clear, with a low around 51. Northeast wind 3 to 5 mph.

Tuesday: Sunny, with a high near 77.

Tuesday Night: Mostly clear, with a low around 57.

Wednesday: Sunny, with a high near 79.

Wednesday Night: Mostly clear, with a low around 61.

Thursday: Sunny, with a high near 82.

Thursday Night: A slight chance of showers. Partly cloudy, with a low around 63. Chance of precipitation is 20%.

Friday: A chance of showers. Mostly sunny, with a high near 81. Chance of precipitation is 40%.

Friday Night: A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

Saturday: A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 30%.