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

Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Hazardous Weather Conditions

Current conditions at

DW8787 CHEHALIS (D8787)

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

NA

54°F

12°C

Humidity 55%
Wind Speed ESE 1 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 38°F (3°C)
Visibility NA
Last update 16 Apr 01:45 PM PDT
Extended Forecast for

7 Miles NNE Onalaska WA

Frost Advisory April 17, 01:00am until April 17, 09:00am
Click here for hazard details and duration
Frost Advisory

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 48. West wind 6 to 11 mph.

    High: 48 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 33. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.

    Low: 33 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 51. Light and variable wind.

    High: 51 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40. Light and variable wind becoming east around 5 mph after midnight.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 62. East wind around 5 mph becoming calm.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A 20 percent chance of rain. Mostly cloudy, with a high near 64.

    High: 64 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: A slight chance of rain after 11am. Partly sunny, with a high near 65.

    High: 65 °F

    Slight Chance
    Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 48. West wind 6 to 11 mph.
Tonight
Increasing clouds, with a low around 33. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.
Friday
Partly sunny, with a high near 51. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 40. Light and variable wind becoming east around 5 mph after midnight.
Saturday
Partly sunny, with a high near 62. East wind around 5 mph becoming calm.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 46.
Sunday
A 20 percent chance of rain. Mostly cloudy, with a high near 64.
Sunday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 46.
Monday
A slight chance of rain after 11am. Partly sunny, with a high near 65.
Monday Night
A chance of rain. Mostly cloudy, with a low around 46.
Tuesday
A chance of rain. Partly sunny, with a high near 57.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 45.
Wednesday
A chance of rain. Mostly cloudy, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNE Onalaska WA
 46.66°N 122.63°W (Elev. 1601 ft)
Last Update:
11:27 am PDT Apr 16, 2026
Forecast Valid:
2pm PDT Apr 16, 2026-6pm PDT Apr 22, 2026
 
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