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

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 >

Hazardous Weather Conditions

Current conditions at

STEHEKIN-AIRSTRIP (STRW1)

Lat: 48.34694°NLon: 120.72028°WElev: 1230.0ft.

NA

40°F

4°C

Humidity 99%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 08 Dec 02:01 PM PST
Extended Forecast for

Trinity WA

Flood Watch December 8, 03:02pm until December 11, 04:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 8, 03:02pm until December 11, 04:00pm

    NOW until 4:00pm Thu

    Flood Watch

  • This Afternoon

    High: 43 °F

    Heavy Rain

  • Tonight

    Tonight: Rain, possibly mixed with snow before 3am, then a chance of snow. The rain could be heavy at times. Low around 32. West wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Low: 32 °F

    Rain/Snow

  • Tuesday

    Tuesday: A chance of snow before 10am, then snow, possibly mixed with rain after 1pm. The snow could be heavy at times. High near 40. Northwest wind 5 to 13 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 40 °F

    Chance Snow
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain, possibly mixed with snow, becoming all rain after 1am. The rain could be heavy at times. Low around 32. Light and variable wind becoming west 5 to 7 mph in the evening. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 32 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain. The rain could be heavy at times. High near 45. West wind 7 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 45 °F

    Heavy Rain

  • Wednesday Night

    Wednesday Night: Rain. Low around 36. Chance of precipitation is 90%.

    Low: 36 °F

    Rain

  • Thursday

    Thursday: Rain, possibly mixed with snow, becoming all rain after 1pm. High near 43. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: Rain likely before 7pm, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.

    Low: 35 °F

    Rain/Snow
    Likely

Detailed Forecast

This Afternoon
Rain. The rain could be heavy at times. High near 43. Southwest wind around 10 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Tonight
Rain, possibly mixed with snow before 3am, then a chance of snow. The rain could be heavy at times. Low around 32. West wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Tuesday
A chance of snow before 10am, then snow, possibly mixed with rain after 1pm. The snow could be heavy at times. High near 40. Northwest wind 5 to 13 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Tuesday Night
Rain, possibly mixed with snow, becoming all rain after 1am. The rain could be heavy at times. Low around 32. Light and variable wind becoming west 5 to 7 mph in the evening. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday
Rain. The rain could be heavy at times. High near 45. West wind 7 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday Night
Rain. Low around 36. Chance of precipitation is 90%.
Thursday
Rain, possibly mixed with snow, becoming all rain after 1pm. High near 43. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Rain likely before 7pm, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.
Friday
A chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 45. Chance of precipitation is 50%.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 36.
Saturday
Rain likely. Partly sunny, with a high near 45. Chance of precipitation is 60%.
Saturday Night
Rain, possibly mixed with snow. Low around 35. Chance of precipitation is 80%.
Sunday
Rain, possibly mixed with snow. High near 41. Chance of precipitation is 80%.
Sunday Night
Rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 70%.
Monday
Rain and snow. High near 42. Chance of precipitation is 80%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Trinity WA
 48.08°N 120.84°W (Elev. 3346 ft)
Last Update:
2:32 pm PST Dec 8, 2025
Forecast Valid:
3pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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