Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

Nashua - Boire Field Airport (KASH)

Lat: 42.78°NLon: 71.51°WElev: 180ft.

Fair

25°F

-4°C

Humidity 30%
Wind Speed NW 13 G 20 mph
Barometer 30.22 in
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 8 Dec 12:56 pm EST
Extended Forecast for

Tyngsboro MA

  • This Afternoon

    This Afternoon: Sunny, with a high near 23. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 23 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 4. Calm wind.

    Low: 4 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 27. Calm wind becoming south around 6 mph in the afternoon.

    High: 27 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of snow before 4am, then a slight chance of snow after 5am.  Mostly cloudy, with a low around 20. Southwest wind 5 to 7 mph.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 20 °F

    Chance Snow

  • Wednesday

    Wednesday: A chance of snow before 10am, then rain.  High near 41. South wind 5 to 7 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 41 °F

    Chance
    Rain/Snow
    then Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 3am.  Mostly cloudy, with a low around 29. Southwest wind around 6 mph.  Chance of precipitation is 70%.

    Low: 29 °F

    Rain Likely
    then Chance
    Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 38. West wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 18. West wind around 6 mph.

    Low: 18 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 32. West wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 32 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 23. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 4. Calm wind.
Tuesday
Increasing clouds, with a high near 27. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
A chance of snow before 4am, then a slight chance of snow after 5am. Mostly cloudy, with a low around 20. Southwest wind 5 to 7 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday
A chance of snow before 10am, then rain. High near 41. South wind 5 to 7 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday Night
Rain likely, mainly before 3am. Mostly cloudy, with a low around 29. Southwest wind around 6 mph. Chance of precipitation is 70%.
Thursday
Mostly sunny, with a high near 38. West wind 6 to 9 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 18. West wind around 6 mph.
Friday
Sunny, with a high near 32. West wind 6 to 9 mph, with gusts as high as 20 mph.
Friday Night
A chance of snow after 3am. Partly cloudy, with a low around 18. Light west wind. Chance of precipitation is 30%.
Saturday
A chance of snow. Partly sunny, with a high near 32. West wind 5 to 8 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 15. West wind around 6 mph.
Sunday
Mostly sunny, with a high near 28. West wind 6 to 9 mph, with gusts as high as 20 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Tyngsboro MA
 42.7°N 71.44°W (Elev. 167 ft)
12:46 pm EST Dec 8, 2025
1pm EST Dec 8, 2025-6pm EST Dec 14, 2025
 
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Additional Resources

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