


Hazardous Weather Conditions
Current conditions at
Gaithersburg - Montgomery County Airport (KGAI)
Lat: 39.17°NLon: 77.17°WElev: 495ft.
Overcast
81°F
27°C
Humidity | 85% |
Wind Speed | Calm |
Barometer | 30.13 in (1021.0 mb) |
Dewpoint | 76°F (24°C) |
Visibility | 10.00 mi |
Heat Index | 87°F (31°C) |
Last update | 15 Jul 12:56 pm EDT |
Extended Forecast for
Gaithersburg MD
This Afternoon
High: 89 °F
Chance
T-stormsTonight
Low: 73 °F
Chance
T-storms then
Partly CloudyWednesday
High: 90 °F
Chance
T-storms then
T-storms
LikelyWednesday Night
Low: 74 °F
T-storms
Likely then
Chance
T-stormsThursday
High: 93 °F
Mostly Sunny
then Chance
T-stormsThursday Night
Low: 75 °F
Chance
T-storms then
Slight Chance
ShowersFriday
High: 89 °F
Mostly Sunny
then Showers
LikelyFriday Night
Low: 71 °F
Showers
Likely then
Chance
T-stormsSaturday
High: 85 °F
Mostly Sunny
then Chance
T-storms
Detailed Forecast
This Afternoon
A chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 89. Calm wind. Chance of precipitation is 30%.
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 73. Light southeast wind. Chance of precipitation is 30%.
Wednesday
A chance of showers, then showers and thunderstorms likely after 11am. Partly sunny, with a high near 90. Heat index values as high as 100. South wind 5 to 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 74. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Southwest wind 6 to 8 mph. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
Friday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Friday Night
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
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 40%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Gaithersburg MD
39.13°N 77.21°W (Elev. 404 ft)
39.13°N 77.21°W (Elev. 404 ft)
10:30 am EDT Jul 15, 2025
1pm EDT Jul 15, 2025-6pm EDT Jul 21, 2025