Hazardous Weather Conditions
Current conditions at
Gaithersburg - Montgomery County Airport (KGAI)
Lat: 39.17°NLon: 77.17°WElev: 495ft.
Overcast
76°F
24°C
| Humidity | 91% |
| Wind Speed | SE 9 mph |
| Barometer | 29.98 in (1016.1 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 76°F (24°C) |
| Last update | 16 Aug 4:56 pm EDT |
Extended Forecast for
Ashton MD
Flood Watch August 16, 07:00pm until August 17, 03:00am
Severe T-storm Watch until August 16, 11:00pm
NOW until 11:00pm Sun

Severe T-storm Watch
This Afternoon

High: 77 °F
Severe
ThunderstormsTonight

Low: 70 °F
Severe
ThunderstormsMonday
High: 87 °F
Mostly Sunny
then Chance
T-stormsMonday Night
Low: 68 °F
Chance
T-storms then
Partly CloudyTuesday

High: 84 °F
Sunny
Tuesday Night

Low: 65 °F
Mostly Clear
Wednesday

High: 87 °F
Sunny
Wednesday Night

Low: 69 °F
Slight Chance
T-storms
Detailed Forecast
This Afternoon
Scattered showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a high near 77. South wind around 7 mph. Chance of precipitation is 50%.
Tonight
Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 2am, then a slight chance of showers after 2am. Some of the storms could be severe. Low around 70. Southwest wind 5 to 7 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 68. Northwest wind 3 to 5 mph. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 84. North wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Sunny, with a high near 87.
Wednesday Night
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 69. Chance of precipitation is 20%.
Thursday
A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Friday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Saturday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 20%.
Sunday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 81.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Ashton MD
39.15°N 76.98°W (Elev. 381 ft)
39.15°N 76.98°W (Elev. 381 ft)
5:29 pm EDT Aug 16, 2026
5pm EDT Aug 16, 2026-6pm EDT Aug 23, 2026



