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Tropical Storm and Storm Surge Watches for the North Carolina Outer Banks; Hot in the Mississippi Valley

Tropical Storm conditions and coastal flooding are possible in the North Carolina Outer Banks beginning late Wednesday. Tropical Storm and Storm Surge Watches are in effect. Hurricane Erin is expected to bring life threatening surf and rip currents along the East Coast beaches this week. Hot to extremely hot temperatures continue across parts of the Southern Plains and Mississippi Valley today. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Light Rain

66°F

19°C

Humidity NA
Wind Speed Vrbl 3 mph
Barometer 30.19 in (1023.6 mb)
Dewpoint N/A
Visibility 5.00 mi
Last update 19 Aug 9:56 am EDT
Extended Forecast for

Colesville MD

  • Today

    Today: A slight chance of showers after 4pm. Cloudy, with a high near 71. East wind 9 to 11 mph. Chance of precipitation is 20%.

    High: 71 °F

    Cloudy then
    Slight Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers between 9pm and 4am. Patchy fog between 11pm and 2am. Otherwise, mostly cloudy, with a low around 66. East wind 5 to 7 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A slight chance of showers between 7am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 81. Southeast wind around 6 mph. Chance of precipitation is 40%.

    High: 81 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Northeast wind around 6 mph. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 76. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 76 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 8pm. Partly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers after 4pm. Cloudy, with a high near 71. East wind 9 to 11 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers between 9pm and 4am. Patchy fog between 11pm and 2am. Otherwise, mostly cloudy, with a low around 66. East wind 5 to 7 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers between 7am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 81. Southeast wind around 6 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Northeast wind around 6 mph. Chance of precipitation is 30%.
Thursday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 76. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 8pm. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Monday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Colesville MD
 39.11°N 77.02°W (Elev. 436 ft)
Last Update:
10:29 am EDT Aug 19, 2025
Forecast Valid:
10am EDT Aug 19, 2025-6pm EDT Aug 25, 2025
 
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