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

Strong to Severe Thunderstorms Continue Tonight in the East; Early Heat Wave in the West

Scattered strong to severe storms with damaging winds and potentially a tornado or two are expected tonight from the coastal Carolinas into the Mid-Atlantic states. An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Read More >

Hazardous Weather Conditions

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Mostly Cloudy

34°F

1°C

Humidity 70%
Wind Speed W 9 mph
Barometer 29.68 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 17 Mar 3:15 am EDT
Extended Forecast for

Perryville MD

  • Overnight

    Overnight: Mostly clear, with a low around 31. West wind around 18 mph, with gusts as high as 33 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 39. West wind around 17 mph, with gusts as high as 30 mph.

    High: 39 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27. Northwest wind 5 to 13 mph, with gusts as high as 20 mph.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38. Light and variable wind.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. Light southeast wind.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of rain. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.

    Low: 43 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 31. West wind around 18 mph, with gusts as high as 33 mph.
Tuesday
Increasing clouds, with a high near 39. West wind around 17 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 27. Northwest wind 5 to 13 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 38. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 31. Light southeast wind.
Thursday
Partly sunny, with a high near 48.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 53.
Friday Night
A chance of rain. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 55.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
Mostly cloudy, with a high near 59.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 49.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Perryville MD
 39.57°N 76.07°W (Elev. 79 ft)
Last Update:
2:42 am EDT Mar 17, 2026
Forecast Valid:
3am EDT Mar 17, 2026-6pm EDT Mar 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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