20877 Weather (Gaithersburg, MD)

Weather forecast for: Gaithersburg MD

Last Update: 7:54 am EDT Aug 6, 2026

Today: Mostly sunny, with a high near 90. Southwest wind 6 to 8 mph.

Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Partly cloudy, with a low around 72. Light south wind. Chance of precipitation is 40%.

Friday: A chance of thunderstorms after 5pm. Mostly sunny, with a high near 89. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 30%.

Friday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 72. Light southwest wind. Chance of precipitation is 50%.

Saturday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 89. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 60%.

Saturday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 72. Chance of precipitation is 60%.

Sunday: Sunny, with a high near 89.

Sunday Night: Partly cloudy, with a low around 72.

Monday: Sunny, with a high near 91.

Monday Night: A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Chance of precipitation is 20%.

Tuesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 30%.

Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.

Wednesday: A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 50%.