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

Hazardous Weather Conditions

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

46°F

8°C

Humidity 32%
Wind Speed SE 5 mph
Barometer 30.53 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 8 Apr 7:15 pm EDT
Extended Forecast for

Jarrettsville MD

Freeze Warning April 9, 12:00am until April 9, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Tonight

    Tonight: Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 30. Southeast wind 3 to 5 mph.

    Low: 30 °F

    Frost

  • Thursday

    Thursday: Widespread frost before 9am. Otherwise, mostly sunny, with a high near 54. South wind 3 to 7 mph.

    High: 54 °F

    Frost then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 38. South wind around 5 mph.

    Low: 38 °F

    Mostly Clear

  • Friday

    Friday: Patchy fog before 9am. Otherwise, sunny, with a high near 67. South wind 3 to 8 mph.

    High: 67 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50. South wind around 7 mph becoming west after midnight.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 30. Southeast wind 3 to 5 mph.
Thursday
Widespread frost before 9am. Otherwise, mostly sunny, with a high near 54. South wind 3 to 7 mph.
Thursday Night
Mostly clear, with a low around 38. South wind around 5 mph.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 67. South wind 3 to 8 mph.
Friday Night
Mostly cloudy, with a low around 50. South wind around 7 mph becoming west after midnight.
Saturday
Sunny, with a high near 62.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Mostly cloudy, with a low around 51.
Monday
Mostly cloudy, with a high near 79.
Monday Night
Mostly cloudy, with a low around 62.
Tuesday
Partly sunny, with a high near 85.
Tuesday Night
Mostly cloudy, with a low around 66.
Wednesday
A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Jarrettsville MD
 39.61°N 76.47°W (Elev. 574 ft)
Last Update:
4:53 pm EDT Apr 8, 2026
Forecast Valid:
7pm EDT Apr 8, 2026-6pm EDT Apr 15, 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