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

Excessive Rainfall Possible for the Gulf Coast and Florida; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across parts of the Gulf Coast into central/northern Florida early this week. Abnormally hot, potentially record-breaking, temperatures will continue for southern California and stretch north toward the Bay Area and Central Valley this week. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

60°F

16°C

Humidity 58%
Wind Speed Vrbl 5 mph
Barometer 30.11 in (1020.8 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 5 Oct 7:56 pm EDT
Extended Forecast for

Olney MD

  • Tonight

    Tonight: Clear, with a low around 42. North wind around 7 mph.

    Low: 42 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 64. North wind 3 to 6 mph.

    High: 64 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 42. Calm wind.

    Low: 42 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71. South wind 3 to 8 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. South wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 42. North wind around 7 mph.
Tuesday
Sunny, with a high near 64. North wind 3 to 6 mph.
Tuesday Night
Clear, with a low around 42. Calm wind.
Wednesday
Sunny, with a high near 71. South wind 3 to 8 mph.
Wednesday Night
Mostly clear, with a low around 52. South wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 51.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
A slight chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 20%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Columbus Day
A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Olney MD
 39.16°N 77.06°W (Elev. 486 ft)
Last Update:
7:53 pm EDT Oct 5, 2026
Forecast Valid:
8pm EDT Oct 5, 2026-6pm EDT Oct 12, 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