Winter Weather in the Eastern U.S.; Heavy Rains Begin Across the Southern Plains into the Ohio Valley

A wintry mix may impact travel across portions of the Mid-Atlantic through the morning and the Northeast U.S. through Tuesday. Heavy rain and thunderstorms may cause a flooding threat across the Southern Plains into the Ohio Valley beginning Tuesday. Fire weather concerns will continue across portions of the central and southern High Plains through Wednesday. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

Lat: 46.64646°NLon: 122.8388°WElev: 550.0ft.

NA

38°F

3°C

Humidity 98%
Wind Speed E 0 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 37°F (3°C)
Visibility NA
Last update 02 Mar 11:46 PM PST
Extended Forecast for

4 Miles SSW Onalaska WA

  • Overnight

    Overnight: A 20 percent chance of rain after 3am.  Mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: Rain, mainly after 1pm.  High near 52. Calm wind becoming south around 5 mph in the afternoon.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Chance Rain
    then Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 43. Light south wind.  Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain

  • Wednesday

    Wednesday: Rain before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain and possibly a thunderstorm after 4pm.  High near 50. Southwest wind 3 to 5 mph.  Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 50 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain.  Low around 38. Calm wind.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Rain then
    Rain Likely

  • Thursday

    Thursday: Rain.  High near 46. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Rain

  • Thursday Night

    Thursday Night: Rain.  Low around 39. Chance of precipitation is 80%.

    Low: 39 °F

    Rain

  • Friday

    Friday: Rain likely.  Cloudy, with a high near 49.

    High: 49 °F

    Rain Likely

  • Friday Night

    Friday Night: Rain likely, mainly before 10pm.  Cloudy, with a low around 42.

    Low: 42 °F

    Rain Likely

Detailed Forecast

Overnight
A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 42. Calm wind.
Tuesday
Rain, mainly after 1pm. High near 52. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain. Low around 43. Light south wind. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain and possibly a thunderstorm after 4pm. High near 50. Southwest wind 3 to 5 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Rain. Low around 38. Calm wind. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain. High near 46. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain. Low around 39. Chance of precipitation is 80%.
Friday
Rain likely. Cloudy, with a high near 49.
Friday Night
Rain likely, mainly before 10pm. Cloudy, with a low around 42.
Saturday
Rain likely. Cloudy, with a high near 51.
Saturday Night
Rain likely. Cloudy, with a low around 42.
Sunday
Rain likely. Cloudy, with a high near 53.
Sunday Night
Rain likely. Mostly cloudy, with a low around 37.
Monday
Rain, possibly mixed with snow. Mostly cloudy, with a high near 46.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Onalaska WA
 46.54°N 122.75°W (Elev. 535 ft)
7:01 pm PST Mar 2, 2026
12am PST Mar 3, 2026-6pm PDT Mar 9, 2026
 
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