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.

Fog/Mist

37°F

3°C

Humidity 100%
Wind Speed N 3 mph
Barometer 29.70 in
Dewpoint 37°F (3°C)
Visibility 2.00 mi
Last update 2 Dec 1:35 pm EST
Extended Forecast for

Jarrettsville MD

  • This Afternoon

    This Afternoon: Rain, mainly before 2pm. Patchy fog. High near 38. Light northwest wind increasing to 5 to 9 mph. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 38 °F

    Rain and
    Patchy Fog

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 26. Northwest wind 11 to 13 mph, with gusts as high as 24 mph.

    Low: 26 °F

    Gradual
    Clearing

  • Wednesday

    Wednesday: Sunny, with a high near 39. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 39 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 27. Calm wind becoming west around 5 mph after midnight.

    Low: 27 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 39. West wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 39 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow after 1pm. Partly sunny, with a high near 33. Chance of precipitation is 30%.

    High: 33 °F

    Partly Sunny
    then Chance
    Snow

  • Friday Night

    Friday Night: A chance of snow before 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.

    Low: 24 °F

    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Rain, mainly before 2pm. Patchy fog. High near 38. Light northwest wind increasing to 5 to 9 mph. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 26. Northwest wind 11 to 13 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 39. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 27. Calm wind becoming west around 5 mph after midnight.
Thursday
Partly sunny, with a high near 39. West wind 6 to 14 mph, with gusts as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 17.
Friday
A chance of snow after 1pm. Partly sunny, with a high near 33. Chance of precipitation is 30%.
Friday Night
A chance of snow before 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
Partly sunny, with a high near 38.
Sunday Night
Mostly cloudy, with a low around 22.
Monday
Partly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Jarrettsville MD
 39.59°N 76.47°W (Elev. 600 ft)
Last Update:
1:26 pm EST Dec 2, 2025
Forecast Valid:
1pm EST Dec 2, 2025-6pm EST Dec 8, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation