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

Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

59°F

15°C

Humidity 100%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 3 Aug 3:55 am EDT
Extended Forecast for

Perryman MD

  • Today

    Today: Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88. Calm wind becoming east around 5 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

Detailed Forecast

Today
Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 60. Calm wind.
Monday
Sunny, with a high near 88. Calm wind becoming northeast around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 64. Calm wind.
Tuesday
Mostly sunny, with a high near 88. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 65.
Wednesday
Partly sunny, with a high near 84.
Wednesday Night
Mostly cloudy, with a low around 66.
Thursday
Partly sunny, with a high near 84.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Perryman MD
 39.47°N 76.2°W (Elev. 30 ft)
Last Update:
1:29 am EDT Aug 3, 2025
Forecast Valid:
4am EDT Aug 3, 2025-6pm EDT Aug 9, 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