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

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

4 Miles N Jarrettsville MD

  • Overnight

    Overnight: A chance of rain after 4am. Mostly cloudy, with a low around 40. West wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    Low: 40 °F

    Chance Rain

  • Thursday

    Thursday: Rain and snow before 1pm, then snow likely between 1pm and 2pm, then a chance of rain and snow after 2pm. Temperature falling to around 35 by 1pm. Breezy, with a northwest wind 14 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 43 °F⇓

    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27. Northwest wind 5 to 9 mph.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 47. Breezy, with a south wind 5 to 10 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 36 mph.

    High: 47 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 37. South wind around 11 mph becoming west after midnight. Winds could gust as high as 24 mph.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers, mainly after 2am. Low around 49. Chance of precipitation is 80%.

    Low: 49 °F

    Chance
    Showers then
    Showers

Detailed Forecast

Overnight
A chance of rain after 4am. Mostly cloudy, with a low around 40. West wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Thursday
Rain and snow before 1pm, then snow likely between 1pm and 2pm, then a chance of rain and snow after 2pm. Temperature falling to around 35 by 1pm. Breezy, with a northwest wind 14 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Mostly clear, with a low around 27. Northwest wind 5 to 9 mph.
Friday
Increasing clouds, with a high near 47. Breezy, with a south wind 5 to 10 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 36 mph.
Friday Night
Mostly clear, with a low around 37. South wind around 11 mph becoming west after midnight. Winds could gust as high as 24 mph.
Saturday
Mostly sunny, with a high near 51.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
Mostly cloudy, with a high near 55.
Sunday Night
Showers, mainly after 2am. Low around 49. Chance of precipitation is 80%.
Monday
Showers. High near 64. Chance of precipitation is 90%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Tuesday
Mostly sunny, with a high near 37.
Tuesday Night
Mostly clear, with a low around 21.
Wednesday
Mostly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Jarrettsville MD
 39.66°N 76.49°W (Elev. 449 ft)
Last Update:
1:53 am EDT Mar 12, 2026
Forecast Valid:
2am EDT Mar 12, 2026-6pm EDT Mar 18, 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