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Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

57°F

14°C

Humidity 44%
Wind Speed N 8 G 18 mph
Barometer 30.27 in (1026.4 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 17 Oct 3:56 pm EDT
Extended Forecast for

Gaithersburg MD

  • Tonight

    Tonight: Patchy frost after 5am. Otherwise, clear, with a low around 35. North wind 5 to 11 mph, with gusts as high as 23 mph.

    Low: 35 °F

    Clear then
    Patchy Frost

  • Sunday

    Sunday: Patchy frost before 9am. Otherwise, sunny, with a high near 58. North wind 5 to 7 mph.

    High: 58 °F

    Patchy Frost
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 37. Calm wind.

    Low: 37 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 62. North wind 5 to 8 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44. North wind 6 to 8 mph.

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy frost after 5am. Otherwise, clear, with a low around 35. North wind 5 to 11 mph, with gusts as high as 23 mph.
Sunday
Patchy frost before 9am. Otherwise, sunny, with a high near 58. North wind 5 to 7 mph.
Sunday Night
Clear, with a low around 37. Calm wind.
Monday
Sunny, with a high near 62. North wind 5 to 8 mph.
Monday Night
Partly cloudy, with a low around 44. North wind 6 to 8 mph.
Tuesday
Sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 45.
Saturday
Mostly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Gaithersburg MD
 39.15°N 77.21°W (Elev. 443 ft)
Last Update:
2:23 pm EDT Oct 17, 2026
Forecast Valid:
4pm EDT Oct 17, 2026-6pm EDT Oct 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation