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.

Overcast

46°F

8°C

Humidity 45%
Wind Speed SW 9 mph
Barometer 29.69 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 14 Jan 1:15 am EST
Extended Forecast for

3 Miles SSW Jarrettsville MD

  • Overnight

    Overnight: Cloudy, with a low around 38. Southwest wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 38 °F

    Cloudy

  • Wednesday

    Wednesday: A chance of rain before 2pm, then a chance of rain after 5pm. Cloudy, with a high near 49. Southwest wind around 6 mph. Chance of precipitation is 40%.

    High: 49 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 2am, then rain and snow likely between 2am and 4am, then a chance of snow after 4am. Cloudy, with a low around 22. Light and variable wind becoming northwest 6 to 11 mph after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: Partly sunny, with a high near 28. Northwest wind 13 to 17 mph, with gusts as high as 28 mph.

    High: 28 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 15. West wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 15 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of snow before 1pm, then a chance of rain. Partly sunny, with a high near 40. Chance of precipitation is 30%.

    High: 40 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 38. Southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Wednesday
A chance of rain before 2pm, then a chance of rain after 5pm. Cloudy, with a high near 49. Southwest wind around 6 mph. Chance of precipitation is 40%.
Wednesday Night
Rain likely before 2am, then rain and snow likely between 2am and 4am, then a chance of snow after 4am. Cloudy, with a low around 22. Light and variable wind becoming northwest 6 to 11 mph after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday
Partly sunny, with a high near 28. Northwest wind 13 to 17 mph, with gusts as high as 28 mph.
Thursday Night
Partly cloudy, with a low around 15. West wind 10 to 13 mph, with gusts as high as 23 mph.
Friday
Mostly sunny, with a high near 31.
Friday Night
Partly cloudy, with a low around 25.
Saturday
A chance of snow before 1pm, then a chance of rain. Partly sunny, with a high near 40. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 16.
M.L.King Day
Mostly sunny, with a high near 29.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 24.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Jarrettsville MD
 39.57°N 76.5°W (Elev. 591 ft)
Last Update:
12:53 am EST Jan 14, 2026
Forecast Valid:
1am EST Jan 14, 2026-6pm EST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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