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

Heavy Rainfall in Southern California and in the Southern Plains; Heavy Snow in the Sierra Nevada Mountains and Rockies

A Pacific storm will bring coastal/lower elevation heavy to excessive rainfall to southern California and the Southern Rockies today, with localized flash flooding possible, especially near recent burn scars. Heavy snow is forecast over parts of the Sierra Nevada Mountains today and over the Northern Rockies on Wednesday. Several inches of snowfall accumulation is possible. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

64°F

18°C

Humidity 75%
Wind Speed Vrbl 7 mph
Barometer 30.09 in (1020.0 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 14 Oct 1:56 pm EDT
Extended Forecast for

Sandy Spring MD

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 69. North wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 69 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 50. North wind 6 to 8 mph.

    Low: 50 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 67. North wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 40. North wind around 7 mph.

    Low: 40 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 61. North wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 69. North wind 8 to 13 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 50. North wind 6 to 8 mph.
Wednesday
Sunny, with a high near 67. North wind 7 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
Clear, with a low around 40. North wind around 7 mph.
Thursday
Sunny, with a high near 61. North wind 7 to 13 mph, with gusts as high as 22 mph.
Thursday Night
Clear, with a low around 37.
Friday
Sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
A chance of showers. Partly sunny, with a high near 72. Chance of precipitation is 40%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Monday
A chance of showers. Mostly sunny, with a high near 65. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sandy Spring MD
 39.16°N 77.04°W (Elev. 469 ft)
Last Update:
1:32 pm EDT Oct 14, 2025
Forecast Valid:
2pm EDT Oct 14, 2025-6pm EDT Oct 20, 2025
 
Forecast Discussion
 
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Additional Resources

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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