National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Record Heat for the Intermountain West and Northern Plains; Heavy Rainfall and Severe Weather Threats

Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Mostly Cloudy

82°F

28°C

Humidity 72%
Wind Speed Vrbl 3 mph
Barometer 30.18 in (1022.9 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 12 Jul 12:56 pm EDT
Extended Forecast for

Damascus MD

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 81. East wind around 9 mph. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 63. Southeast wind around 6 mph becoming calm after midnight.

    Low: 63 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 80. Southeast wind 3 to 7 mph.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. Light and variable wind.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85. Light southwest wind.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 68.

    Low: 68 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 81. East wind around 9 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 63. Southeast wind around 6 mph becoming calm after midnight.
Monday
Mostly sunny, with a high near 80. Southeast wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 62. Light and variable wind.
Tuesday
Sunny, with a high near 85. Light southwest wind.
Tuesday Night
Clear, with a low around 68.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 71.
Thursday
Sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 68.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 20%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Damascus MD
 39.29°N 77.22°W (Elev. 764 ft)
Last Update:
10:52 am EDT Jul 12, 2026
Forecast Valid:
1pm EDT Jul 12, 2026-6pm EDT Jul 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation