Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

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

NA

52°F

11°C

Humidity 98%
Wind Speed ESE 1 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 51°F (11°C)
Visibility NA
Last update 17 Mar 02:15 PM PDT
Extended Forecast for

4 Miles SSW Onalaska WA

  • This Afternoon

    This Afternoon: Rain.  High near 53. Light south wind.  Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain

  • Tonight

    Tonight: Rain likely, mainly after 4am.  Mostly cloudy, with a low around 48. Light south southeast wind.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain, mainly before 3pm.  High near 56. Light south wind.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely.  Cloudy, with a low around 49. Calm wind.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely.  Cloudy, with a high near 59. Light south wind.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely.  Cloudy, with a low around 50. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Rain Likely

  • Friday

    Friday: Rain.  High near 57. Chance of precipitation is 90%.

    High: 57 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 36.

    Low: 36 °F

    Rain Likely

  • Saturday

    Saturday: A chance of rain, mainly before 11am.  Partly sunny, with a high near 50.

    High: 50 °F

    Chance Rain

Detailed Forecast

This Afternoon
Rain. High near 53. Light south wind. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain likely, mainly after 4am. Mostly cloudy, with a low around 48. Light south southeast wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain, mainly before 3pm. High near 56. Light south wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely. Cloudy, with a low around 49. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain likely. Cloudy, with a high near 59. Light south wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain likely. Cloudy, with a low around 50. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain. High near 57. Chance of precipitation is 90%.
Friday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 36.
Saturday
A chance of rain, mainly before 11am. Partly sunny, with a high near 50.
Saturday Night
A slight chance of rain before 11pm, then a slight chance of rain and snow. Partly cloudy, with a low around 31.
Sunday
A slight chance of rain and snow. Partly sunny, with a high near 53.
Sunday Night
Partly cloudy, with a low around 32.
Monday
A chance of rain. Partly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Onalaska WA
 46.54°N 122.75°W (Elev. 535 ft)
2:26 pm PDT Mar 17, 2026
2pm PDT Mar 17, 2026-6pm PDT Mar 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database