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

37°F

3°C

Humidity 99%
Wind Speed ESE 0 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 37°F (3°C)
Visibility NA
Last update 03 Mar 01:16 AM PST
Extended Forecast for

Onalaska WA

  • Overnight

    Overnight: A 20 percent chance of rain after 3am.  Mostly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: Rain, mainly before 4pm.  High near 52. South wind 3 to 6 mph.  Chance of precipitation is 90%. 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 44. South wind 3 to 5 mph.  Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °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. Calm wind becoming west southwest around 5 mph in the afternoon.  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. Light west southwest wind.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Rain

  • 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 likely, mainly after 4am.  Mostly cloudy, with a low around 39. Chance of precipitation is 70%.

    Low: 39 °F

    Rain Likely

  • Friday

    Friday: Rain.  Cloudy, with a high near 48.

    High: 48 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 10pm.  Cloudy, with a low around 44.

    Low: 44 °F

    Rain Likely

Detailed Forecast

Overnight
A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 43. Calm wind.
Tuesday
Rain, mainly before 4pm. High near 52. South wind 3 to 6 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain. Low around 44. South wind 3 to 5 mph. 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. Calm wind becoming west southwest around 5 mph in the afternoon. 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. Light west southwest 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 likely, mainly after 4am. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.
Friday
Rain. Cloudy, with a high near 48.
Friday Night
Rain likely, mainly before 10pm. Cloudy, with a low around 44.
Saturday
Rain likely. Cloudy, with a high near 51.
Saturday Night
Rain likely. Mostly cloudy, with a low around 43.
Sunday
Rain likely. Mostly cloudy, with a high near 52.
Sunday Night
Rain likely. Mostly cloudy, with a low around 38.
Monday
Rain. Mostly cloudy, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
Onalaska WA
 46.58°N 122.74°W (Elev. 600 ft)
1:25 am PST Mar 3, 2026
1am PST Mar 3, 2026-6pm PDT Mar 9, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database