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

Heavy to Excessive Rainfall This Week from the Southwest into Central U.S.

Pacific tropical moisture wrapping into a storm over the southwest U.S. will continue a multi-day heavy rainfall event this week that will extend into the Midwest and southern Plains. Considerable flash flooding is possible across portions of New Mexico and west Texas today through Wednesday. Read More >

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Overcast

70°F

21°C

Humidity 81%
Wind Speed Vrbl 6 mph
Barometer 30.05 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 29 Sep 12:55 pm EDT
Extended Forecast for

Perryville MD

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 74. Northwest wind around 5 mph.

    High: 74 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 79. Light and variable wind.

    High: 79 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 65. Calm wind becoming south around 5 mph after midnight.

    Low: 65 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Southwest wind around 6 mph.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.

    High: 73 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 74. Northwest wind around 5 mph.
Tonight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 61. Calm wind.
Wednesday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 79. Light and variable wind.
Wednesday Night
Mostly cloudy, with a low around 65. Calm wind becoming south around 5 mph after midnight.
Thursday
Mostly sunny, with a high near 82. Southwest wind around 6 mph.
Thursday Night
Mostly clear, with a low around 67.
Friday
Mostly sunny, with a high near 84.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 20%.
Saturday
A chance of showers after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.
Saturday Night
A chance of showers, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Perryville MD
 39.57°N 76.07°W (Elev. 79 ft)
Last Update:
12:54 pm EDT Sep 29, 2026
Forecast Valid:
1pm EDT Sep 29, 2026-6pm EDT Oct 5, 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